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BofA Finance LLC $1,151,000

Fixed Income
Auto-Callable Yield Notes

Fully and Unconditionally Guaranteed by Bank of America Corporation

Pricing Supplement

(To Prospectus dated December 8, 2025,

Series A Prospectus Supplement dated December 8, 2025 and

Product Supplement STOCK-1 dated December 8, 2025)

Filed Pursuant to Rule 424(b)(2)

Registration Statement Nos. 333-290665 and 333-290665-01

October 23, 2026

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Linked to the Common Stock of Palo Alto Networks, Inc.

•The Fixed Income Auto-Callable Yield Notes Linked to the Common Stock of Palo Alto Networks, Inc., due November 29, 2027 (the “Notes”) priced on October 23, 2026 and will issue on October 28, 2026.

•Approximate 13 month term if not called prior to maturity.

•Payments on the Notes will depend on the performance of the common stock of Palo Alto Networks, Inc. (the “Underlying Stock”).

•A fixed coupon rate of 17.25% per annum (1.4375% per month) payable monthly, assuming the Notes have not been called.

•Beginning with the April 23, 2027 Call Observation Date, automatically callable monthly for an amount equal to the principal amount plus the Fixed Coupon Payment, if the Observation Value of the Underlying Stock is greater than or equal to 100.00% of its Starting Value on any Call Observation Date.

•Assuming the Notes are not called prior to maturity, if the Underlying Stock declines by more than 40% from its Starting Value, at maturity your investment will be subject to 1:1 downside exposure to decreases in the value of the Underlying Stock, with up to 100% of the principal at risk; otherwise, at maturity, you will receive the principal amount. At maturity you will also receive the final Fixed Coupon Payment regardless of the performance of the Underlying Stock.

•All payments on the Notes are subject to the credit risk of BofA Finance LLC (“BofA Finance” or the “Issuer”), as issuer of the Notes, and Bank of America Corporation (“BAC” or the “Guarantor”), as guarantor of the Notes.

•The Notes will not be listed on any securities exchange.

•CUSIP No. 09712HDN9.

The initial estimated value of the Notes as of the pricing date is $979.00 per $1,000.00 in principal amount of Notes, which is less than the public offering price listed below. The actual value of your Notes at any time will reflect many factors and cannot be predicted with accuracy. See “Risk Factors” beginning on page PS-8 of this pricing supplement and “Structuring the Notes” on page PS-14 of this pricing supplement for additional information.

There are important differences between the Notes and a conventional debt security. Potential purchasers of the Notes should consider the information in “Risk Factors” beginning on page PS-8 of this pricing supplement, page PS-4 of the accompanying product supplement, page S-7 of the accompanying prospectus supplement, and page 7 of the accompanying prospectus.

None of the Securities and Exchange Commission (the “SEC”), any state securities commission, or any other regulatory body has approved or disapproved of these securities or determined if this pricing supplement and the accompanying product supplement, prospectus supplement and prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

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\n \n	\n Public Offering Price \n	\n Underwriting Discount⁽¹⁾ \n	\n Proceeds, before expenses, to BofA Finance \n
\n Per Note \n	\n $1,000.00 \n	\n $0.00 \n	\n $1,000.00 \n
\n Total \n	\n $1,151,000.00 \n	\n $0.00 \n	\n $1,151,000.00 \n

(1)In addition to the underwriting discount above, if any, an affiliate of BofA Finance will pay a referral fee of up to $4.50 per $1,000.00 in principal amount of the Notes in connection with the distribution of the Notes to other registered broker-dealers.

The Notes and the related guarantee:

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Are Not FDIC Insured

Are not Bank Guaranteed

May Lose Value

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Selling Agent

Fixed Income Auto-Callable Yield Notes Linked to the Common Stock of Palo Alto Networks, Inc.

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Terms of the Notes

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\n Issuer: \n	\n BofA Finance \n
\n Guarantor: \n	\n BAC \n
\n Denominations: \n	\n The Notes will be issued in minimum denominations of $1,000.00 and whole multiples of $1,000.00 in excess thereof. \n
\n Term: \n	\n Approximately 13 months, unless previously automatically called. \n
\n Underlying Stock: \n	\n The common stock of Palo Alto Networks, Inc. (Nasdaq Global Select Market symbol: “PANW”). \n
\n Pricing Date: \n	\n October 23, 2026 \n
\n Issue Date: \n	\n October 28, 2026 \n
\n Valuation Date: \n	\n November 23, 2027, subject to postponement as described under “Description of the Notes—Certain Terms of the Notes—Events Relating to Calculation Days” in the accompanying product supplement. \n
\n Maturity Date: \n	\n November 29, 2027 \n
\n Starting Value: \n	\n $380.55 \n
\n Observation Value: \n	\n The Closing Market Price of the Underlying Stock on the applicable Call Observation Date, multiplied by its Price Multiplier. \n
\n Ending Value: \n	\n The Closing Market Price of the Underlying Stock on the Valuation Date, multiplied by its Price Multiplier. \n
\n Call Value: \n	\n $380.55, which is 100.00% of the Starting Value. \n
\n Price Multiplier: \n	\n 1, subject to adjustment for certain corporate events relating to the Underlying Stock as described in “Description of the Notes — Anti-Dilution Adjustments” beginning on page PS-20 of the accompanying product supplement. \n
\n Threshold Value: \n	\n $228.33, which is 60.00% of the Starting Value. \n
\n Fixed Coupon Payment: \n	\n Provided that the Notes have not been previously automatically called, we will pay a monthly Fixed Coupon Payment of $14.375 per $1,000.00 in principal amount of Notes (equal to a rate of 1.4375% per month or 17.25% per annum) on the applicable Fixed Payment Date (including the Maturity Date). \n
\n Automatic Call: \n	\n Beginning with the April 23, 2027 Call Observation Date, all (but not less than all) of the Notes will be automatically called if the Observation Value of the Underlying Stock is greater than or equal to the Call Value on any Call Observation Date. If the Notes are automatically called, the Early Redemption Amount will be paid on the applicable Call Payment Date. No further amounts will be payable following an Automatic Call. \n
\n Early Redemption Amount: \n	\n For each $1,000.00 in principal amount of Notes, $1,000.00, plus the applicable Fixed Coupon Payment. \n
\n Redemption Amount: \n	\n If the Notes have not been automatically called prior to maturity, the Redemption Amount per $1,000.00 in principal amount of Notes will be: \n a) If the Ending Value of the Underlying Stock is greater than or equal to the Threshold Value: \n \n b) If the Ending Value of the Underlying Stock is less than the Threshold Value: \n \n

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FIXED INCOME AUTO-CALLABLE YIELD NOTES | PS-2

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Fixed Income Auto-Callable Yield Notes Linked to the Common Stock of Palo Alto Networks, Inc.

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\n \n	\n In this case, the Redemption Amount (excluding the final Fixed Coupon Payment) will be less than 60.00% of the principal amount and you could lose up to 100.00% of your investment in the Notes. \n The Redemption Amount will also include the final Fixed Coupon Payment regardless of the performance of the Underlying Stock. \n
\n Fixed Payment Dates: \n	\n As set forth beginning on page PS-4 \n
\n Call Observation Dates: \n	\n As set forth beginning on page PS-5 \n
\n Call Payment Dates: \n	\n As set forth beginning on page PS-5. Each Call Payment Date is also a Fixed Payment Date. \n
\n Calculation Agent: \n	\n BofA Securities, Inc. (“BofAS”), an affiliate of BofA Finance. \n
\n Selling Agent: \n	\n BofAS \n
\n CUSIP: \n	\n 09712HDN9 \n
\n Underlying Stock Return: \n	\n \n
\n Events of Default and Acceleration: \n	\n If an Event of Default, as defined in the senior indenture relating to the Notes and in the section entitled “Description of Debt Securities of BofA Finance LLC—Events of Default and Rights of Acceleration” on page 51 of the accompanying prospectus, with respect to the Notes occurs and is continuing, the amount payable to a holder of the Notes upon any acceleration permitted under the senior indenture will be equal to the amount described under the caption “Redemption Amount” above, calculated as though the date of acceleration were the Maturity Date of the Notes and as though the Valuation Date were the third Trading Day prior to the date of acceleration. The final Fixed Coupon Payment will be prorated by the calculation agent to reflect the length of the final fixed payment period. In case of a default in the payment of the Notes, whether at their maturity or upon acceleration, the Notes will not bear a default interest rate. \n

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FIXED INCOME AUTO-CALLABLE YIELD NOTES | PS-3

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Fixed Income Auto-Callable Yield Notes Linked to the Common Stock of Palo Alto Networks, Inc.

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Fixed Payment Dates, Call Observation Dates and Call Payment Dates

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Fixed Payment Dates

November 27, 2026

December 29, 2026

January 28, 2027

February 26, 2027

March 29, 2027

April 28, 2027

May 27, 2027

June 28, 2027

July 28, 2027

August 26, 2027

September 28, 2027

October 28, 2027

November 29, 2027 (the “Maturity Date”)

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FIXED INCOME AUTO-CALLABLE YIELD NOTES | PS-4

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Fixed Income Auto-Callable Yield Notes Linked to the Common Stock of Palo Alto Networks, Inc.

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\n Call Observation Dates* \n	\n Call Payment Dates \n
\n April 23, 2027 \n	\n April 28, 2027 \n
\n May 24, 2027 \n	\n May 27, 2027 \n
\n June 23, 2027 \n	\n June 28, 2027 \n
\n July 23, 2027 \n	\n July 28, 2027 \n
\n August 23, 2027 \n	\n August 26, 2027 \n
\n September 23, 2027 \n	\n September 28, 2027 \n
\n October 25, 2027 \n	\n October 28, 2027 \n

* The Call Observation Dates are subject to postponement as set forth in “Description of the Notes—Certain Terms of the Notes—Events Relating to Observation Dates” on page PS-18 of the accompanying product supplement, with references to “Observation Dates” being read as references to “Call Observation Dates.”

Any payments on the Notes depend on the credit risk of BofA Finance, as Issuer, and BAC, as Guarantor, and on the performance of the Underlying Stock. The economic terms of the Notes are based on BAC’s internal funding rate, which is the rate it would pay to borrow funds through the issuance of market-linked notes, and the economic terms of certain related hedging arrangements BAC’s affiliates enter into. BAC’s internal funding rate is typically lower than the rate it would pay when it issues conventional fixed or floating rate debt securities. This difference in funding rate, as well as the underwriting discount, if any, the referral fee and the hedging related charges described below (see “Risk Factors” beginning on page PS-8), reduced the economic terms of the Notes to you and the initial estimated value of the Notes. Due to these factors, the public offering price you are paying to purchase the Notes is greater than the initial estimated value of the Notes as of the pricing date.

The initial estimated value of the Notes as of the pricing date is set forth on the cover page of this pricing supplement. For more information about the initial estimated value and the structuring of the Notes, see “Risk Factors” beginning on page PS-8 and “Structuring the Notes” on page PS-14.

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FIXED INCOME AUTO-CALLABLE YIELD NOTES | PS-5

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Fixed Income Auto-Callable Yield Notes Linked to the Common Stock of Palo Alto Networks, Inc.

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Redemption Amount Determination

Assuming the Notes have not been automatically called, on the Maturity Date, you will receive a cash payment per $1,000.00 in principal amount of Notes determined as follows:

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\n \n	\n \n	\n Is the Ending Value of the Underlying Stock greater than or equal to the Threshold Value? \n	\n \n	\n \n
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\n \n	\n You will receive: $1,000.00 \n	\n \n	\n \n You will receive: \n \n \n In this case, the Redemption Amount (excluding the final Fixed Coupon Payment) will be less than 60.00% of the principal amount and you could lose up to 100.00% of your investment in the Notes. \n \n	\n \n
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\n \n	\n \n The Redemption Amount will also include the final Fixed Coupon Payment regardless of the performance of the Underlying Stock. \n \n	\n \n
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All payments described above are subject to the credit risk of BofA Finance, as Issuer, and BAC, as Guarantor.

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FIXED INCOME AUTO-CALLABLE YIELD NOTES | PS-6

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Fixed Income Auto-Callable Yield Notes Linked to the Common Stock of Palo Alto Networks, Inc.

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Hypothetical Payout Profile and Examples of Payments at Maturity

Fixed Income Auto-Callable Yield Notes Table

The following table is for purposes of illustration only. It assumes the Notes have not been automatically called prior to maturity and is based on hypothetical values and shows hypothetical returns on the Notes. The table illustrates the calculation of the Redemption Amount and the return on the Notes based on a hypothetical Starting Value of 100, a hypothetical Threshold Value of 60, the Fixed Coupon Payment of $14.375 per $1,000.00 in principal amount of Notes and a range of hypothetical Ending Values of the Underlying Stock. The actual amount you receive and the resulting return will depend on the actual Starting Value, Threshold Value, Observation Values and Ending Value of the Underlying Stock, whether the Notes are automatically called prior to maturity, and whether you hold the Notes to maturity. The following examples do not take into account any tax consequences from investing in the Notes.

For recent actual values of the Underlying Stock, see “The Underlying Stock” section below. The Ending Value of the Underlying Stock will not include any income generated by dividends or other distributions paid with respect to shares of the Underlying Stock. In addition, all payments on the Notes are subject to Issuer and Guarantor credit risk.

\n Ending Value \n	\n Underlying Stock Return \n	\n Redemption Amount per Note (including the final Fixed Coupon Payment) \n	\n Return on the Notes⁽¹⁾ \n
\n 160.00 \n	\n 60.00% \n	\n $1,014.375 \n	\n 1.4375% \n
\n 150.00 \n	\n 50.00% \n	\n $1,014.375 \n	\n 1.4375% \n
\n 140.00 \n	\n 40.00% \n	\n $1,014.375 \n	\n 1.4375% \n
\n 130.00 \n	\n 30.00% \n	\n $1,014.375 \n	\n 1.4375% \n
\n 120.00 \n	\n 20.00% \n	\n $1,014.375 \n	\n 1.4375% \n
\n 110.00 \n	\n 10.00% \n	\n $1,014.375 \n	\n 1.4375% \n
\n 105.00 \n	\n 5.00% \n	\n $1,014.375 \n	\n 1.4375% \n
\n 102.00 \n	\n 2.00% \n	\n $1,014.375 \n	\n 1.4375% \n
\n 100.00⁽²⁾ \n	\n 0.00% \n	\n $1,014.375 \n	\n 1.4375% \n
\n 90.00 \n	\n -10.00% \n	\n $1,014.375 \n	\n 1.4375% \n
\n 80.00 \n	\n -20.00% \n	\n $1,014.375 \n	\n 1.4375% \n
\n 70.00 \n	\n -30.00% \n	\n $1,014.375 \n	\n 1.4375% \n
\n 60.00⁽³⁾ \n	\n -40.00% \n	\n $1,014.375 \n	\n 1.4375% \n
\n 59.99 \n	\n -40.01% \n	\n $614.275 \n	\n -38.5725% \n
\n 50.00 \n	\n -50.00% \n	\n $514.375 \n	\n -48.5625% \n
\n 0.00 \n	\n -100.00% \n	\n $14.375 \n	\n -98.5625% \n

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\n (1) \n	\n The “Return on the Notes” is calculated based on the Redemption Amount and final Fixed Coupon Payment, not including any Fixed Coupon Payments paid prior to maturity. \n
\n (2) \n	\n The hypothetical Starting Value of 100 used in the table above has been chosen for illustrative purposes only. The actual Starting Value of the Underlying Stock is set forth on page PS-2 above. \n
\n (3) \n	\n This is the hypothetical Threshold Value. \n

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FIXED INCOME AUTO-CALLABLE YIELD NOTES | PS-7

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Fixed Income Auto-Callable Yield Notes Linked to the Common Stock of Palo Alto Networks, Inc.

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Risk Factors

Your investment in the Notes entails significant risks, many of which differ from those of a conventional debt security. Your decision to purchase the Notes should be made only after carefully considering the risks of an investment in the Notes, including those discussed below, with your advisors in light of your particular circumstances. The Notes are not an appropriate investment for you if you are not knowledgeable about significant elements of the Notes or financial matters in general. You should carefully review the more detailed explanation of risks relating to the Notes in the “Risk Factors” sections beginning on page PS-4 of the accompanying product supplement, page S-7 of the accompanying prospectus supplement and page 7 of the accompanying prospectus, each as identified on page PS-19 below.

Structure-related Risks

•Your investment may result in a loss; there is no guaranteed return of principal. There is no fixed principal repayment amount on the Notes at maturity. If the Notes are not automatically called prior to maturity and the Ending Value of the Underlying Stock is less than the Threshold Value, at maturity, your investment will be subject to 1:1 downside exposure to decreases in the value of the Underlying Stock and you will lose 1% of the principal amount for each 1% that the Ending Value of the Underlying Stock is less than the Starting Value. In that case, you will lose a significant portion or all of your investment in the Notes.

•Your return on the Notes is limited to the return represented by the Fixed Coupon Payments over the term of the Notes. Your return on the Notes is limited to the Fixed Coupon Payments paid over the term of the Notes, regardless of the extent to which the Observation Value or Ending Value of the Underlying Stock exceeds its Starting Value. Similarly, the amount payable at maturity or upon an Automatic Call will never exceed the sum of the principal amount and the Fixed Coupon Payment, regardless of the extent to which the Observation Value or the Ending Value of the Underlying Stock exceeds its Starting Value. In contrast, a direct investment in the Underlying Stock would allow you to receive the benefit of any appreciation in its price. Any return on the Notes will not reflect the return you would realize if you actually owned shares of the Underlying Stock and received the dividends paid or distributions made on them.

•The Notes are subject to a potential Automatic Call, which would limit your ability to receive the Fixed Coupon Payments over the full term of the Notes. The Notes are subject to a potential Automatic Call. Beginning with the April 23, 2027 Call Observation Date, the Notes will be automatically called if, on any Call Observation Date, the Observation Value of the Underlying Stock is greater than or equal to its Call Value. If the Notes are automatically called prior to the Maturity Date, you will be entitled to receive the Early Redemption Amount on the applicable Call Payment Date, and no further amounts will be payable following the Automatic Call. . In this case, you will lose the opportunity to continue to receive Fixed Coupon Payments after the date of the Automatic Call. If the Notes are called prior to the Maturity Date, you may be unable to invest in other securities with a similar level of risk that could provide a return that is similar to the Notes.

•Your return on the Notes may be less than the yield on a conventional debt security of comparable maturity. Any return that you receive on the Notes may be less than the return you would earn if you purchased a conventional debt security with the same Maturity Date. As a result, your investment in the Notes may not reflect the full opportunity cost to you when you consider factors, such as inflation, that affect the time value of money. In addition, if interest rates increase during the term of the Notes, the Fixed Coupon Payment may be less than the yield on a conventional debt security of comparable maturity.

•The Early Redemption Amount or Redemption Amount, as applicable, will not reflect changes in the price of the Underlying Stock other than on the Call Observation Dates or the Valuation Date, as applicable. The price of the Underlying Stock during the term of the Notes other than on the Call Observation Dates or the Valuation Date, as applicable, will not affect the Early Redemption Amount or Redemption Amount. Notwithstanding the foregoing, investors should generally be aware of the performance of the Underlying Stock while holding the Notes, as the performance of the Underlying Stock may influence the market value of the Notes. The calculation agent will calculate the Early Redemption Amount or the Redemption Amount, as applicable, by comparing only the Starting Value, the Call Value or the Threshold Value, as applicable, to the Observation Value or the Ending Value for the Underlying Stock. No other price of the Underlying Stock will be taken into account. As a result, if the Notes are not automatically called prior to maturity and the Ending Value of the Underlying Stock is less than the Threshold Value, you will receive less than the principal amount at maturity even if the price of the Underlying Stock was always above the Threshold Value prior to the Valuation Date.

•Any payments on the Notes are subject to our credit risk and the credit risk of the Guarantor, and any actual or perceived changes in our or the Guarantor’s creditworthiness are expected to affect the value of, or any amounts payable on, the Notes. The Notes are our unsecured senior debt securities. Any payment on the Notes will be fully and unconditionally guaranteed by the Guarantor. The Notes are not guaranteed by any entity other than the Guarantor. As a result, your receipt of any payments on the Notes will be dependent upon our ability and the ability of the Guarantor to repay our respective obligations under the Notes on the applicable payment date, regardless of the performance of the Underlying Stock. No assurance can be given as to what our financial condition or the financial condition of the Guarantor will be at any time after the pricing date of the Notes. If we and the Guarantor become unable to meet our respective financial obligations as they become due, you may not receive the amount(s) payable under the terms of the Notes.

In addition, our credit ratings and the credit ratings of the Guarantor are assessments by ratings agencies of our respective abilities to pay our obligations. Consequently, our or the Guarantor’s perceived creditworthiness and actual or anticipated decreases in our or the Guarantor’s credit ratings or increases in the spread between the yield on our respective securities and the yield on U.S. Treasury securities (the “credit spread”) prior to the Maturity Date may adversely affect the market value of the Notes. However, because your return on the Notes depends upon factors in addition to our ability and the ability of the Guarantor to pay our respective obligations, such

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FIXED INCOME AUTO-CALLABLE YIELD NOTES | PS-8

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Fixed Income Auto-Callable Yield Notes Linked to the Common Stock of Palo Alto Networks, Inc.

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as the price of the Underlying Stock, an improvement in our or the Guarantor’s credit ratings will not reduce the other investment risks related to the Notes.

•We are a finance subsidiary and, as such, have no independent assets, operations, or revenues. We are a finance subsidiary of the Guarantor, have no operations other than those related to the issuance, administration and payment of our obligations under our debt securities that are guaranteed by the Guarantor, and are dependent upon the Guarantor and/or its other subsidiaries to meet our obligations under the Notes in the ordinary course. Therefore, our ability to make payments on the Notes may be limited.

Valuation and Market-related Risks

•The public offering price you are paying for the Notes exceeds their initial estimated value. The initial estimated value of the Notes that is provided on the cover page of this pricing supplement is an estimate only, determined as of the pricing date by reference to our and our affiliates’ pricing models. These pricing models consider certain assumptions and variables, including our credit spreads and those of the Guarantor, the Guarantor’s internal funding rate, mid-market terms on hedging transactions, expectations on interest rates, dividends and volatility, price-sensitivity analysis, and the expected term of the Notes. These pricing models rely in part on certain forecasts about future events, which may prove to be incorrect. If you attempt to sell the Notes prior to maturity, their market value may be lower than the price you paid for them and lower than their initial estimated value. This is due to, among other things, changes in the price of the Underlying Stock, changes in the Guarantor’s internal funding rate, and the inclusion in the public offering price of the underwriting discount, if any, the referral fee and the hedging related charges, all as further described in “Structuring the Notes” below. These factors, together with various credit, market and economic factors over the term of the Notes, are expected to reduce the price at which you may be able to sell the Notes in any secondary market and will affect the value of the Notes in complex and unpredictable ways.

•The initial estimated value does not represent a minimum or maximum price at which we, BAC, BofAS or any of our other affiliates would be willing to purchase your Notes in any secondary market (if any exists) at any time. The value of your Notes at any time after issuance will vary based on many factors that cannot be predicted with accuracy, including the performance of the Underlying Stock, our and BAC’s creditworthiness and changes in market conditions.

•We cannot assure you that a trading market for your Notes will ever develop or be maintained. We will not list the Notes on any securities exchange. We cannot predict how the Notes will trade in any secondary market or whether that market will be liquid or illiquid.

Conflict-related Risks

•Trading and hedging activities by us, the Guarantor and any of our other affiliates, including BofAS, may create conflicts of interest with you and may adversely affect your return on the Notes and their market value. We, the Guarantor or one or more of our other affiliates, including BofAS, may buy or sell shares of the Underlying Stock, or futures or options contracts or exchange traded instruments on the Underlying Stock, or other listed or over-the-counter derivative instruments whose value is derived from the Underlying Stock. We, the Guarantor or one or more of our other affiliates, including BofAS, may execute such purchases or sales for our own or their own accounts, for business reasons, or in connection with hedging our obligations under the Notes. These transactions may present a conflict of interest between your interest in the Notes and the interests we, the Guarantor and our other affiliates, including BofAS, may have in our or their proprietary accounts, in facilitating transactions, including block trades, for our or their other customers, and in accounts under our or their management. These transactions may adversely affect the price of the Underlying Stock in a manner that could be adverse to your investment in the Notes. On or before the pricing date, any purchases or sales by us, the Guarantor or our other affiliates, including BofAS or others on our or their behalf (including those for the purpose of hedging some or all of our anticipated exposure in connection with the Notes), may have adversely affected the price of the Underlying Stock. Consequently, the price of the Underlying Stock may change subsequent to the pricing date, which may adversely affect the market value of the Notes.

We, the Guarantor or one or more of our other affiliates, including BofAS, also may have engaged in hedging activities that could have adversely affected the price of the Underlying Stock on the pricing date. In addition, these hedging activities, including the unwinding of a hedge, may decrease the market value of your Notes prior to maturity, and may adversely affect the amounts to be paid on the Notes. We, the Guarantor or one or more of our other affiliates, including BofAS, may purchase or otherwise acquire a long or short position in the Notes or the Underlying Stock and may hold or resell the Notes or the Underlying Stock. For example, BofAS may enter into these transactions in connection with any market making activities in which it engages. We cannot assure you that these activities will not adversely affect the price of the Underlying Stock, the market value of your Notes prior to maturity or the amounts payable, if any, on the Notes.

•There may be potential conflicts of interest involving the calculation agent, which is an affiliate of ours. We have the right to appoint and remove the calculation agent. One of our affiliates will be the calculation agent for the Notes and, as such, will make a variety of determinations relating to the Notes, including the amounts that will be paid on the Notes. Under some circumstances, these duties could result in a conflict of interest between its status as our affiliate and its responsibilities as calculation agent.

Underlying Stock-related Risks

•The terms of the Notes will not be adjusted for all corporate events that could affect the issuer of the Underlying Stock. The Price Multiplier of the Underlying Stock, the determination of the payments on the Notes, and other terms of the Notes may be adjusted for the specified corporate events affecting the Underlying Stock, as described in the section entitled “Description of the Notes—Anti-

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FIXED INCOME AUTO-CALLABLE YIELD NOTES | PS-9

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Fixed Income Auto-Callable Yield Notes Linked to the Common Stock of Palo Alto Networks, Inc.

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Dilution Adjustments” beginning on page PS-20 of the accompanying product supplement. However, these adjustments do not cover all corporate events that could affect the market price of the Underlying Stock, such as offerings of common shares for cash or in connection with certain acquisition transactions. The occurrence of any event that does not require the calculation agent to adjust the applicable Price Multiplier or the amounts that may be paid on the Notes at maturity may adversely affect the price of the Underlying Stock, and, as a result, the market value of the Notes.

Tax-related Risks

•The U.S. federal income tax consequences of an investment in the Notes are uncertain, and may be adverse to a holder of the Notes. No statutory, judicial, or administrative authority directly addresses the characterization of the Notes or securities substantially similar to the Notes for U.S. federal income tax purposes. As a result, significant aspects of the U.S. federal income tax consequences of an investment in the Notes are not certain. Under the terms of the Notes, you will have agreed with us to treat the Notes as consisting of a put option and a deposit, as more fully described below under “U.S. Federal Income Tax Summary—General.” If the Internal Revenue Service (the “IRS”) were successful in asserting an alternative characterization for the Notes, the timing and character of income, gain or loss with respect to the Notes may differ. No ruling will be requested from the IRS with respect to the Notes and no assurance can be given that the IRS will agree with the statements made in the section entitled “U.S. Federal Income Tax Summary.” You are urged to consult with your own tax advisor regarding all aspects of the U.S. federal income tax consequences of investing in the Notes.

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FIXED INCOME AUTO-CALLABLE YIELD NOTES | PS-10

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Fixed Income Auto-Callable Yield Notes Linked to the Common Stock of Palo Alto Networks, Inc.

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The Underlying Stock

We have derived the following information on the Underlying Stock and the company issuing the Underlying Stock (the “Underlying Company”) from publicly available documents. Because the Underlying Stock is registered under the Securities Exchange Act of 1934, the Underlying Company is required to file periodically certain financial and other information specified by the SEC. Information provided to or filed with the SEC by the Underlying Company can be located through the SEC’s web site at sec.gov by reference to the CIK number set forth below.

This document relates only to the offering of the Notes and does not relate to any offering of Underlying Stock or any other securities of the Underlying Company. None of us, the Guarantor, BofAS or any of our other affiliates has made any due diligence inquiry with respect to the Underlying Company in connection with the offering of the Notes. None of us, the Guarantor, BofAS or any of our other affiliates has independently verified the accuracy or completeness of the publicly available documents or any other publicly available information regarding the Underlying Company and hence makes no representation regarding the same. Furthermore, there can be no assurance that all events occurring prior to the date of this document, including events that would affect the accuracy or completeness of these publicly available documents that could affect the trading price of the Underlying Stock, have been or will be publicly disclosed. Subsequent disclosure of any events or the disclosure of or failure to disclose material future events concerning the Underlying Company could affect the price of the Underlying Stock and therefore could affect your return on the Notes. The selection of the Underlying Stock is not a recommendation to buy or sell the Underlying Stock.

Common Stock of Palo Alto Networks, Inc.

Palo Alto Networks, Inc. provides network security solutions. The company offers firewalls that identify and control applications, scan content to stop threats, prevent data leakage, and secure integrated application, user, and content visibility. The company serves customers worldwide. This Underlying Stock trades on the Nasdaq Global Select Market under the symbol \"PANW\". The company's CIK number is 0001327567.

Historical Performance of PANW

The following graph sets forth the daily historical performance of PANW in the period from January 2, 2021 through the pricing date. PANW began trading on the Nasdaq Global Select Market on October 25, 2021. Prior to October 25, 2021, PANW was listed on the New York Stock Exchange. We obtained this historical data from Bloomberg L.P. We have not independently verified the accuracy or completeness of the information obtained from Bloomberg L.P. The Closing Market Prices reflected in the graph below may have been adjusted to reflect certain corporate actions, such as stock splits and reverse stock splits. On the pricing date, the Closing Market Price of PANW was $380.55.

This historical data on PANW is not necessarily indicative of the future performance of PANW or what the value of the Notes may be. Any historical upward or downward trend in the Closing Market Price of PANW during any period set forth above is not an indication that the Closing Market Price of PANW is more or less likely to increase or decrease at any time over the term of the Notes.

Before investing in the Notes, you should consult publicly available sources for the Closing Market Prices and trading pattern of PANW.

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FIXED INCOME AUTO-CALLABLE YIELD NOTES | PS-11

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Fixed Income Auto-Callable Yield Notes Linked to the Common Stock of Palo Alto Networks, Inc.

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Supplement to the Plan of Distribution; Role of BofAS and Conflicts of Interest

BofAS, a broker-dealer affiliate of ours, is a member of the Financial Industry Regulatory Authority, Inc. (“FINRA”) and will participate as selling agent in the distribution of the Notes. Accordingly, the offering of the Notes will conform to the requirements of FINRA Rule 5121. BofAS may not make sales in this offering to any of its discretionary accounts without the prior written approval of the account holder.

We will deliver the Notes against payment therefor in New York, New York on a date that is greater than one business day following the pricing date. Under Rule 15c6-1 of the Securities Exchange Act of 1934, trades in the secondary market generally are required to settle in one business day, unless the parties to any such trade expressly agree otherwise. Accordingly, purchasers who wish to trade the Notes more than one business day prior to the original issue date will be required to specify alternative settlement arrangements to prevent a failed settlement.

Under our distribution agreement with BofAS, BofAS will purchase the Notes from us as principal at the public offering price indicated on the cover of this pricing supplement, less the indicated underwriting discount, if any. BofAS will sell the Notes to other broker-dealers that will participate in the offering and that are not affiliated with us, at an agreed discount to the principal amount. Each of those broker-dealers may sell the Notes to one or more additional broker-dealers. BofAS has informed us that these discounts may vary from dealer to dealer and that not all dealers will purchase or repurchase the Notes at the same discount. In addition to the underwriting discount, if any, an affiliate of BofA Finance will pay a referral fee of up to $4.50 per $1,000.00 in principal amount of Notes in connection with the distribution of the Notes to other registered broker-dealers.

BofAS and any of our other broker-dealer affiliates may use this pricing supplement and the accompanying product supplement, prospectus supplement and prospectus for offers and sales in secondary market transactions and market-making transactions in the Notes. However, they are not obligated to engage in such secondary market transactions and/or market-making transactions. These broker-dealer affiliates may act as principal or agent in these transactions, and any such sales will be made at prices related to prevailing market conditions at the time of the sale.

At BofAS’s discretion, for a short, undetermined initial period after the issuance of the Notes, BofAS may offer to buy the Notes in the secondary market at a price that may exceed the initial estimated value of the Notes. Any price offered by BofAS for the Notes will be based on then-prevailing market conditions and other considerations, including the performance of the Underlying Stock and the remaining term of the Notes. However, none of us, the Guarantor, BofAS or any of our other affiliates is obligated to purchase your Notes at any price or at any time, and we cannot assure you that any party will purchase your Notes at a price that equals or exceeds the initial estimated value of the Notes.

Any price that BofAS may pay to repurchase the Notes will depend upon then prevailing market conditions, the creditworthiness of us and the Guarantor, and transaction costs. At certain times, this price may be higher than or lower than the initial estimated value of the Notes.

European Economic Area and United Kingdom

None of this pricing supplement, the accompanying product supplement, the accompanying prospectus or the accompanying prospectus supplement is a prospectus for the purposes of the Prospectus Regulation (as defined below). This pricing supplement, the accompanying product supplement, the accompanying prospectus and the accompanying prospectus supplement have been prepared on the basis that any offer of Notes in any Member State of the European Economic Area (the “EEA”) or in the United Kingdom (each, a “Relevant State”) will only be made to a legal entity which is a qualified investor under the Prospectus Regulation (“Qualified Investors”). Accordingly any person making or intending to make an offer in that Relevant State of Notes which are the subject of the offering contemplated in this pricing supplement, the accompanying product supplement, the accompanying prospectus and the accompanying prospectus supplement may only do so with respect to Qualified Investors. Neither BofA Finance nor BAC has authorized, nor does it authorize, the making of any offer of Notes other than to Qualified Investors. The expression “Prospectus Regulation” means Regulation (EU) 2017/1129.

PROHIBITION OF SALES TO EEA RETAIL INVESTORS – The Notes are not intended to be offered, sold or otherwise made available to and should not be offered, sold or otherwise made available to any retail investor in the EEA. For these purposes: (a) a retail investor means a person who is one (or more) of: (i) a retail client as defined in point (11) of Article 4(1) of Directive 2014/65/EU, as amended (“MiFID II”); or (ii) a customer within the meaning of Directive (EU) 2016/97 (the Insurance Distribution Directive) where that customer would not qualify as a professional client as defined in point (10) of Article 4(1) of MiFID II; or (iii) not a qualified investor as defined in the Prospectus Regulation; and (b) the expression “offer” includes the communication in any form and by any means of sufficient information on the terms of the offer and the Notes to be offered so as to enable an investor to decide to purchase or subscribe for the Notes. Consequently no key information document required by Regulation (EU) No 1286/2014, as amended (the “PRIIPs Regulation”) for offering or selling the Notes or otherwise making them available to retail investors in the EEA has been prepared and therefore offering or selling the Notes or otherwise making them available to any retail investor in the EEA may be unlawful under the PRIIPs Regulation.

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FIXED INCOME AUTO-CALLABLE YIELD NOTES | PS-12

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Fixed Income Auto-Callable Yield Notes Linked to the Common Stock of Palo Alto Networks, Inc.

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PROHIBITION OF SALES TO UNITED KINGDOM RETAIL INVESTORS – The Notes are not intended to be offered, sold or otherwise made available to and should not be offered, sold or otherwise made available to any retail investor in the United Kingdom. For these purposes: (a) a retail investor means a person who is neither: (i) a professional client as defined in point (8) of Article 2(1) of Regulation (EU) No 600/2014 as it forms part of domestic law in the United Kingdom; nor (ii) a qualified investor as defined in paragraph 15 of Schedule 1 to the Public Offers and Admissions to Trading Regulations 2024 (as may be amended from time to time); and (b) the expression “offer” includes the communication in any form and by any means of sufficient information on the terms of the offer and the Notes to be offered so as to enable an investor to decide to purchase or subscribe for the Notes. Consequently no key information document required by Regulation (EU) No 1286/2014, as amended (the “PRIIPs Regulation”) for offering or selling the Notes or otherwise making them available to retail investors in the United Kingdom has been prepared and therefore offering or selling the Notes or otherwise making them available to any retail investor in the United Kingdom may be unlawful under the PRIIPs Regulation.

United Kingdom

The communication of this pricing supplement, the accompanying product supplement, the accompanying prospectus supplement, the accompanying prospectus and any other document or materials relating to the issue of the Notes offered hereby is not being made, and such documents and/or materials have not been approved, by an authorized person for the purposes of Section 21 of the United Kingdom’s Financial Services and Markets Act 2000, as amended (the “FSMA”). Accordingly, such documents and/or materials are not being distributed to, and must not be passed on to, the general public in the United Kingdom. The communication of such documents and/or materials as a financial promotion is only being made to those persons in the United Kingdom who have professional experience in matters relating to investments and who fall within the definition of investment professionals (as defined in Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005, as amended (the “Financial Promotion Order”)), or who fall within Article 49(2)(a) to (d) of the Financial Promotion Order, or who are any other persons to whom it may otherwise lawfully be made under the Financial Promotion Order (all such persons together being referred to as “Relevant Persons”). In the United Kingdom, the Notes offered hereby are only available to, and any investment or investment activity to which this pricing supplement, the accompanying product supplement, the accompanying prospectus supplement and the accompanying prospectus relates will be engaged in only with, Relevant Persons. Any person in the United Kingdom that is not a relevant person should not act or rely on this pricing supplement, the accompanying product supplement, the accompanying prospectus supplement or the accompanying prospectus or any of their contents.

Any invitation or inducement to engage in investment activity (within the meaning of Section 21 of the FSMA) in connection with the issue or sale of the Notes may only be communicated or caused to be communicated in circumstances in which Section 21(1) of the FSMA does not apply to BofA Finance, as Issuer, or BAC, as Guarantor.

All applicable provisions of the FSMA must be complied with in respect to anything done by any person in relation to the Notes in, from or otherwise involving the United Kingdom.

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FIXED INCOME AUTO-CALLABLE YIELD NOTES | PS-13

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Fixed Income Auto-Callable Yield Notes Linked to the Common Stock of Palo Alto Networks, Inc.

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Structuring the Notes

The Notes are our debt securities, the return on which is linked to the performance of the Underlying Stock. The related guarantee is BAC’s obligation. As is the case for all of our and BAC’s respective debt securities, including our market-linked notes, the economic terms of the Notes reflect our and BAC’s actual or perceived creditworthiness at the time of pricing. In addition, because market-linked notes result in increased operational, funding and liability management costs to us and BAC, BAC typically borrows the funds under these types of notes at a rate, which we refer to in this pricing supplement as BAC’s internal funding rate, that is more favorable to BAC than the rate that it might pay for a conventional fixed or floating rate debt security. This generally relatively lower internal funding rate, which is reflected in the economic terms of the Notes, along with the fees and charges associated with market-linked notes, resulted in the initial estimated value of the Notes on the pricing date being less than their public offering price.

In order to meet our payment obligations on the Notes, at the time we issue the Notes, we may choose to enter into certain hedging arrangements (which may include call options, put options or other derivatives) with BofAS or one of our other affiliates. The terms of these hedging arrangements are determined based upon terms provided by BofAS and its affiliates, and take into account a number of factors, including our and BAC’s creditworthiness, interest rate movements, the volatility of the Underlying Stock, the tenor of the Notes and the hedging arrangements. The economic terms of the Notes and their initial estimated value depend in part on the terms of these hedging arrangements.

BofAS has advised us that the hedging arrangements will include hedging related charges, reflecting the costs associated with, and our affiliates’ profit earned from, these hedging arrangements. Since hedging entails risk and may be influenced by unpredictable market forces, actual profits or losses from these hedging transactions may be more or less than any expected amounts.

For further information, see “Risk Factors” beginning on page PS-4 and “Supplemental Use of Proceeds” on page PS-15 of the accompanying product supplement.

Validity of the Notes

In the opinion of Sidley Austin LLP, as counsel to BofA Finance and BAC, when the trustee has made the appropriate entries or notations on Schedule 1 to the master global note that represents the Notes (the “Master Note”) identifying the Notes offered hereby as supplemental obligations thereunder in accordance with the instructions of BofA Finance, and the Notes have been delivered against payment as contemplated herein, such Notes will be valid and binding obligations of BofA Finance, and the related guarantee will be a valid and binding obligation of BAC, in each case, enforceable in accordance with their terms, subject to applicable bankruptcy, insolvency and similar laws affecting creditors’ rights generally, concepts of reasonableness and equitable principles of general applicability (including, without limitation, concepts of good faith, fair dealing and the lack of bad faith), provided that such counsel expresses no opinion as to the effect of fraudulent conveyance, fraudulent transfer or similar provision of applicable law on the conclusions expressed above. This opinion is given as of the date hereof and is limited to the Delaware Limited Liability Company Act, the Delaware General Corporation Law and the laws of the State of New York as in effect on the date hereof. In addition, this opinion is subject to customary assumptions about the trustee’s authorization, execution and delivery of the indenture and due authentication of the Master Note and the genuineness of signatures and certain factual matters, all as stated in the letter of such counsel dated October 1, 2025 which has been filed as Exhibit 5.3 to the Company’s Registration Statement on Form S-3 filed with the Securities and Exchange Commission on October 1, 2025.

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FIXED INCOME AUTO-CALLABLE YIELD NOTES | PS-14

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Fixed Income Auto-Callable Yield Notes Linked to the Common Stock of Palo Alto Networks, Inc.

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U.S. Federal Income Tax Summary

The following summary of the material U.S. federal income and estate tax considerations of the acquisition, ownership, and disposition of the Notes supplements, and to the extent inconsistent supersedes, the discussion under “U.S. Federal Income Tax Considerations” in the accompanying prospectus and is not exhaustive of all possible tax considerations. This summary is based upon the Internal Revenue Code of 1986, as amended (the “Code”), regulations promulgated under the Code by the U.S. Treasury Department (“Treasury”) (including proposed and temporary regulations), rulings, current administrative interpretations and official pronouncements of the IRS, and judicial decisions, all as currently in effect and all of which are subject to differing interpretations or to change, possibly with retroactive effect. No assurance can be given that the IRS would not assert, or that a court would not sustain, a position contrary to any of the tax consequences described below. This summary does not include any description of the tax laws of any state or local governments, or of any foreign government, that may be applicable to a particular holder.

Although the Notes are issued by us, they will be treated as if they were issued by BAC for U.S. federal income tax purposes. Accordingly throughout this tax discussion, references to “we,” “our” or “us” are generally to BAC unless the context requires otherwise.

This summary is directed solely to U.S. Holders and Non-U.S. Holders (each, as defined in the accompanying prospectus) that, except as otherwise specifically noted, will purchase the Notes upon original issuance and will hold the Notes as capital assets within the meaning of Section 1221 of the Code, which generally means property held for investment, and that are not excluded from the discussion under “U.S. Federal Income Tax Considerations” in the accompanying prospectus.

You should consult your own tax advisor concerning the U.S. federal income tax consequences to you of acquiring, owning, and disposing of the Notes, as well as any tax consequences arising under the laws of any state, local, foreign, or other tax jurisdiction and the possible effects of changes in U.S. federal or other tax laws.

General

There is no statutory, judicial, or administrative authority directly addressing the characterization of the Notes or instruments substantially similar to the Notes. We intend to treat the Notes for all tax purposes as a unit (a “Unit”) consisting of the following:

(i)a put option (the “Put Option”) written by you to us that, if exercised, requires you to pay us an amount equal to the Deposit (as defined below) in exchange for a cash amount based upon the performance of the Underlying Stock; and

(ii)a deposit with us of a fixed amount of cash, equal to the issue price of the Note, to secure your obligation under the Put Option (the “Deposit”) that pays you interest based on our cost of borrowing at the time of issuance (the “Deposit Interest”).

Based on the treatment of each Note as a Unit consisting of the Put Option and the Deposit, it would be reasonable to allocate each Fixed Coupon Payment between the Deposit and the Put Option and treat 28% of each Fixed Coupon Payment as Deposit Interest and 72% of each Fixed Coupon Payment as Put Option premium. Under this approach, it would be reasonable to allocate 100% of the issue price of a Note to the Deposit and none to the Put Option.

No statutory, judicial or administrative authority directly addresses the proper treatment of the Notes or instruments substantially similar to the Notes for U.S. federal income tax purposes, and no ruling is being requested from the IRS with respect to the Notes. Significant aspects of the U.S. federal income tax consequences of an investment in the Notes are uncertain, and no assurance can be given that the IRS or a court will agree with the tax treatment described herein. In the opinion of our counsel, Sidley Austin LLP, the treatment of the Notes described above is reasonable under current law; however, our counsel has advised us that it is unable to conclude affirmatively that this treatment is more likely than not to be upheld, and that alternative treatments are possible. Accordingly, you should consult your tax advisor regarding the U.S. federal income tax consequences of an investment in the Notes (including alternative treatments of the Notes). Unless otherwise expressly stated, the remainder of this discussion is based upon, and assumes, the treatment of each Note as a Unit consisting of the Put Option and the Deposit, as well as the allocation of the Fixed Coupon Payments and issue price of the Note described above.

Unless otherwise stated, the following discussion is based on the characterization described above. The discussion in this section assumes that there is a significant possibility of a significant loss of principal on an investment in the Notes.

We will not attempt to ascertain whether the issuer of the Underlying Stock would be treated as a “passive foreign investment company” (“PFIC”), within the meaning of Section 1297 of the Code, or a United States real property holding corporation, within the meaning of Section 897(c) of the Code. If the issuer of the Underlying Stock were so treated, certain adverse U.S. federal income tax consequences could possibly apply to a holder of the Notes. You should refer to information filed with the SEC by the issuer of the Underlying Stock and consult your tax advisor regarding the possible consequences to you, if any, if the issuer of the Underlying Stock is or becomes a PFIC or is or becomes a United States real property holding corporation.

U.S. Holders

The Deposit Interest payments will be included in the income of a U.S. Holder as interest at the time that such interest is accrued or received in accordance with such U.S. Holder’s regular method of tax accounting. The Put Option premium will not be included in the income of a U.S. Holder until the sale, exchange, redemption or maturity of the Notes. Accordingly, all of the Put Option premium payments on the Notes (except for the last Put Option premium payment) generally will not be included in the income of a U.S. Holder when they are received.

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FIXED INCOME AUTO-CALLABLE YIELD NOTES | PS-15

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Fixed Income Auto-Callable Yield Notes Linked to the Common Stock of Palo Alto Networks, Inc.

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If at maturity the U.S. Holder receives cash equal to the full principal amount plus the last Deposit Interest payment and the last Put Option premium payment, then such U.S. Holder (i) would include the last Deposit Interest payment in income as interest in the manner described above and (ii) would recognize short-term capital gain equal to the entire amount of Put Option premium, which amount is equal to the sum of all of the Put Option premium payments received.

If at maturity the U.S. Holder receives an amount of cash that is less than the full principal amount and receives the last Deposit Interest payment and the last Put Option premium payment, then such U.S. Holder (i) will include the last Deposit Interest payment in income as interest in the manner described above and (ii) will recognize long-term capital gain or loss with respect to the remaining cash received at maturity (other than the last Put Option premium payment) in an amount equal to the difference between (1) the sum of all of the Put Option premiums received (including the last Put Option premium payment) and (2) the excess of the principal amount of the Note over the amount of such cash received.

Upon a redemption of the Notes prior to maturity, a U.S. Holder (i) would include the last Deposit Interest payment in income as interest in the manner described above and (ii) would recognize short-term capital gain equal to the sum of all the Put Option premium payments received.

Upon a sale or exchange of a Note prior to maturity (except upon redemption of the Notes prior to maturity, which is described above), a U.S. Holder will generally recognize short-term or long-term capital gain or loss with respect to the Deposit (depending upon the U.S. Holder’s holding period for the Notes). The U.S. Holder will also generally recognize short-term capital gain or loss with respect to the Put Option. For purposes of determining the amount of such gain or loss, a U.S. Holder should apportion the amount realized on the sale or exchange (other than amounts attributable to accrued but unpaid Deposit Interest payments, which would be taxed as described above) between the Deposit and the Put Option based upon their respective fair market values on the date of such sale or exchange. In general, the amount of capital gain or loss on the Deposit will equal the amount realized that is attributable to the Deposit, less the U.S. Holder’s adjusted tax basis in the Deposit. The amount realized that is attributable to the Put Option plus the total Put Option premiums previously received by the U.S. Holder should be treated as short-term capital gain. Notwithstanding the foregoing, if the fair market value of the Deposit on the date of such sale or exchange exceeds the total amount realized on the sale or exchange (other than amounts attributable to accrued but unpaid Deposit Interest payments), the U.S. Holder should be treated as having (i) sold or exchanged the Deposit for an amount equal to its fair market value on such date and (ii) made a payment (the “Put Option Assumption Payment”) equal to the amount of such excess in exchange for the purchaser’s assumption of the U.S. Holder’s rights and obligations under the Put Option. In such event, the U.S. Holder should recognize short-term capital gain or loss in respect of the Put Option in an amount equal to the difference between the total Put Option premiums previously received by the U.S. Holder and the Put Option Assumption Payment.

Alternative Tax Treatments. Due to the absence of authorities that directly address the proper tax treatment of the Notes, prospective investors are urged to consult their tax advisors regarding all possible alternative tax treatments of an investment in the Notes. In particular, the IRS could seek to subject the Notes to the Treasury regulations governing contingent payment debt instruments. If the IRS were successful in that regard, the timing and character of income on the Notes would be affected significantly. Among other things, a U.S. Holder would be required to accrue original issue discount every year at a “comparable yield” determined at the time of issuance. In addition, any gain realized by a U.S. Holder at maturity or upon a sale, exchange or redemption of the Notes generally would be treated as ordinary income, and any loss realized at maturity or upon a sale, exchange or redemption of the Notes generally would be treated as ordinary loss to the extent of the U.S. Holder’s prior accruals of original issue discount, and as capital loss thereafter. Alternatively, under an alternative characterization of the Notes as income-bearing single financial contracts, the entire Fixed Coupon Payments could be required to be included in income as ordinary income by a U.S. holder at the time received accrued. Other alternative characterizations are possible and prospective investors should consult with their tax advisors regarding all aspects of the U.S. federal income tax consequences of an investment in the Notes.

On December 7, 2007, the IRS released Notice 2008-2 (the \"Notice\"), which sought comments from the public on the taxation of financial instruments currently taxed as “prepaid forward contracts.” The Notice addressed instruments such as the Notes. According to the Notice, the IRS and Treasury were considering whether a holder of an instrument such as the Notes should be required to accrue ordinary income on a current basis, regardless of whether any payments are made prior to maturity. Although the IRS subsequently obsoleted the Notice on September 29, 2026, it is not possible to determine what guidance the IRS and Treasury will ultimately issue, if any. Any such future guidance may affect the amount, timing and character of income, gain, or loss in respect of the Notes, possibly with retroactive effect.

The IRS and Treasury are also considering additional issues, including whether additional gain or loss from such instruments should be treated as ordinary or capital, whether foreign holders of such instruments should be subject to withholding tax on any deemed income accruals, whether Section 1260 of the Code, concerning certain “constructive ownership transactions,” generally applies or should generally apply to such instruments, and whether any of these determinations depend on the nature of the underlying asset.

In addition, proposed Treasury regulations require the accrual of income on a current basis for contingent payments made under certain notional principal contracts. The preamble to the regulations states that the “wait and see” method of accounting does not properly reflect the economic accrual of income on those contracts, and requires current accrual of income for some contracts already in existence. While the proposed regulations do not apply to prepaid forward contracts, the preamble to the proposed regulations expresses the view that similar timing issues exist in the case of prepaid forward contracts. If the IRS or Treasury publishes future guidance requiring current economic accrual for contingent payments on prepaid forward contracts, it is possible that you could be required to accrue income over the term of the Notes.

Because of the absence of authority regarding the appropriate tax characterization of the Notes, it is also possible that the IRS could seek to characterize the Notes in a manner that results in tax consequences that are different from those described above. For example, the IRS could possibly

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FIXED INCOME AUTO-CALLABLE YIELD NOTES | PS-16

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Fixed Income Auto-Callable Yield Notes Linked to the Common Stock of Palo Alto Networks, Inc.

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assert that any gain or loss that a holder may recognize at maturity or upon the sale, exchange or redemption of the Notes should be treated as ordinary gain or loss.

Non-U.S. Holders

Assuming the treatment of the Notes as set forth above is respected and subject to the discussions below regarding the potential application of Section 871(m) of the Code and the discussions in the accompanying prospectus regarding FATCA, Fixed Coupon Payments with respect to a Note, and gain realized on the sale, exchange or redemption of such Note, should not be subject to U.S. federal income or withholding tax under current law, provided that:

•the Non-U.S. Holder does not own, directly or by attribution, ten percent or more of the total combined voting power of all classes of our stock entitled to vote;

•the Non-U.S. Holder is not a controlled foreign corporation related, directly or indirectly, to us through stock ownership;

•the Non-U.S. Holder is not a bank receiving interest under Section 881(c)(3)(A) of the Code;

•the certification requirement described below has been fulfilled with respect to the beneficial owner; and

•the payment is not effectively connected with the conduct by the Non-U.S. Holder of U.S. trade or business.

Certification Requirement. The certification requirement referred to in the preceding paragraph will be fulfilled if the beneficial owner of a Note (or a financial institution holding a Note on behalf of the beneficial owner) furnishes to the applicable withholding agent an IRS Form W-8BEN (or other appropriate form), on which the beneficial owner certifies under penalties of perjury that it is not a U.S. person.

Alternative Tax Treatments. As described above under “— U.S. Holders — Alternative Tax Treatments,” the IRS may seek to apply a different characterization and tax treatment from the treatment described herein. While the U.S. federal income and withholding tax consequences to a Non-U.S. Holder of ownership and disposition of a Note under current law should generally be the same as those described immediately above, it is possible that a Non-U.S. Holder could be subject to withholding tax under certain recharacterizations of the Notes.

Moreover, among the issues addressed in the Notice described in “— U.S. Holders — Alternative Tax Treatments” is the degree, if any, to which income realized by Non-U.S. Holders should be subject to withholding tax. It is possible that any Treasury regulations or other guidance issued after consideration of this issue could materially and adversely affect the withholding tax consequences of ownership and disposition of the Notes, possibly with retroactive effect. Accordingly, prospective investors should consult their tax advisors regarding all aspects of the U.S. federal income tax consequences of an investment in the Notes, including the possible implications of the Notice discussed above. Prospective investors should note that we currently do not intend to withhold on any of the payments made with respect to the Notes to Non-U.S. Holders (subject to compliance by such holders with the certification requirement described above and to the discussion regarding FATCA in the accompanying prospectus). However, in the event of a change of law or any formal or informal guidance by the IRS, the Treasury or Congress, we (or the applicable paying agent) may decide to withhold on payments made with respect to the Notes to Non-U.S. Holders and we will not be required to pay any additional amounts with respect to amounts withheld.

Notwithstanding the foregoing, gain from the sale, exchange or redemption of the Notes or their settlement at maturity may be subject to U.S. federal income tax if that Non-U.S. Holder is a non-resident alien individual and is present in the U.S. for 183 days or more during the taxable year of the sale, exchange, redemption, or settlement and certain other conditions are satisfied.

If a Non-U.S. Holder of the Notes is engaged in the conduct of a trade or business within the U.S. and if any Fixed Coupon Payment and gain realized on the settlement at maturity, or upon sale, exchange or redemption of the Notes, is effectively connected with the conduct of such trade or business (and, if certain tax treaties apply, is attributable to a permanent establishment maintained by the Non-U.S. Holder in the U.S.), the Non-U.S. Holder, although exempt from U.S. federal withholding tax, generally will be subject to U.S. federal income tax on such Fixed Coupon Payment and gain on a net income basis in the same manner as if it were a U.S. Holder. Such Non-U.S. Holders should read the material under the heading “—U.S. Holders,” for a description of the U.S. federal income tax consequences of acquiring, owning, and disposing of the Notes. In addition, if such Non-U.S. Holder is a foreign corporation, it may also be subject to a branch profits tax equal to 30% (or such lower rate provided by any applicable tax treaty) of a portion of its earnings and profits for the taxable year that are effectively connected with its conduct of a trade or business in the U.S., subject to certain adjustments.

A “dividend equivalent” payment is treated as a dividend from sources within the United States and such payments generally would be subject to a 30% U.S. withholding tax if paid to a Non-U.S. Holder. Under Treasury regulations, payments (including deemed payments) with respect to equity-linked instruments (“ELIs”) that are “specified ELIs” may be treated as dividend equivalents if such specified ELIs reference an interest in an “underlying security,” which is generally any interest in an entity taxable as a corporation for U.S. federal income tax purposes if a payment with respect to such interest could give rise to a U.S. source dividend. However, IRS guidance provides that withholding on dividend equivalent payments will not apply to specified ELIs that are not delta-one instruments and that are issued before January 1, 2029. Based on our determination that the Notes are not delta-one instruments, Non-U.S. Holders should not be subject to withholding on dividend equivalent payments, if any, under the Notes. However, it is possible that the Notes could be treated as deemed reissued for U.S. federal income tax purposes upon the occurrence of certain events affecting the Underlying Stock or the Notes, and following such occurrence the Notes could be treated as subject to withholding on dividend equivalent payments. Non-U.S. Holders that enter, or have entered, into other transactions in respect of the Underlying Stock or the Notes should consult their tax advisors as to the application of the dividend equivalent withholding tax in the context of the Notes and their other transactions. If any payments are treated as dividend equivalents subject to withholding, we (or the applicable paying agent) would be entitled to withhold taxes without being required to pay any

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FIXED INCOME AUTO-CALLABLE YIELD NOTES | PS-17

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Fixed Income Auto-Callable Yield Notes Linked to the Common Stock of Palo Alto Networks, Inc.

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additional amounts with respect to amounts so withheld.

As discussed above, alternative characterizations of the Notes for U.S. federal income tax purposes are possible. Should an alternative characterization, by reason of change or clarification of the law, by regulation or otherwise, cause payments as to the Notes to become subject to withholding tax in addition to the withholding tax described above, tax will be withheld at the applicable statutory rate. Prospective Non-U.S. Holders should consult their own tax advisors regarding the tax consequences of such alternative characterizations.

U.S. Federal Estate Tax. Under current law, while the matter is not entirely clear, individual Non-U.S. Holders, and entities whose property is potentially includible in those individuals’ gross estates for U.S. federal estate tax purposes (for example, a trust funded by such an individual and with respect to which the individual has retained certain interests or powers), should note that, absent an applicable treaty benefit, a Note is likely to be treated as U.S. situs property, subject to U.S. federal estate tax. These individuals and entities should consult their own tax advisors regarding the U.S. federal estate tax consequences of investing in a Note.

Backup Withholding and Information Reporting

Please see the discussion under “U.S. Federal Income Tax Considerations — General — Backup Withholding and Information Reporting” in the accompanying prospectus for a description of the applicability of the backup withholding and information reporting rules to payments made on the Notes.

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FIXED INCOME AUTO-CALLABLE YIELD NOTES | PS-18

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Fixed Income Auto-Callable Yield Notes Linked to the Common Stock of Palo Alto Networks, Inc.

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Where You Can Find More Information

The terms and risks of the Notes are contained in this pricing supplement and in the following related product supplement, prospectus supplement and prospectus, which can be accessed at the following links:

•Product Supplement STOCK-1 dated December 8, 2025: https://www.sec.gov/Archives/edgar/data/70858/000119312525311322/d52179d424b2.htm

•Series A MTN prospectus supplement dated December 8, 2025 and prospectus dated December 8, 2025: https://www.sec.gov/Archives/edgar/data/70858/000119312525310920/d51586d424b3.htm

This pricing supplement and the accompanying product supplement, prospectus supplement and prospectus have been filed as part of a registration statement with the SEC, which may, without cost, be accessed on the SEC website at www.sec.gov or obtained from BofAS by calling 1-800-294-1322. Before you invest, you should read this pricing supplement and the accompanying product supplement, prospectus supplement and prospectus for information about us, BAC and this offering. Any prior or contemporaneous oral statements and any other written materials you may have received are superseded by this pricing supplement and the accompanying product supplement, prospectus supplement and prospectus. Certain terms used but not defined in this pricing supplement have the meanings set forth in the accompanying product supplement or prospectus supplement. Unless otherwise indicated or unless the context requires otherwise, all references in this document to “we,” “us,” “our,” or similar references are to BofA Finance, and not to BAC.

The Notes are our senior debt securities. Any payments on the Notes are fully and unconditionally guaranteed by BAC. The Notes and the related guarantee are not insured by the Federal Deposit Insurance Corporation or secured by collateral. The Notes will rank equally in right of payment with all of our other unsecured and unsubordinated obligations, except obligations that are subject to any priorities or preferences by law. The related guarantee will rank equally in right of payment with all of BAC’s other unsecured and unsubordinated obligations, except obligations that are subject to any priorities or preferences by law, and senior to its subordinated obligations. Any payments due on the Notes, including any repayment of the principal amount, will be subject to the credit risk of BofA Finance, as Issuer, and BAC, as Guarantor.

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FIXED INCOME AUTO-CALLABLE YIELD NOTES | PS-19

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