To estimate an LLPA-related price adjustment, use the Fannie Mae LLPA Matrix effective September 30, 2026: select the correct transaction-purpose table, locate the lender-confirmed credit-score and loan-to-value (LTV) bands, add every applicable feature adjustment, then apply any waiver or credit. Convert the resulting percentage to a dollar amount by multiplying it by the applicable principal balance. For example, 0.50% of a hypothetical $400,000 balance is $2,000. That calculation estimates a lender-side pricing adjustment; it does not, by itself, tell you the interest rate, points, closing costs, or cash you will need to close.
What an LLPA is—and what it is not
A loan-level price adjustment (LLPA) is a pricing adjustment tied to characteristics of a mortgage that a lender may sell to Fannie Mae. Fannie Mae identifies credit score, LTV, loan purpose, occupancy, number of units, product type and other features as factors that can change the adjustment. The matrix is designed for conventional loans sold to Fannie Mae, not as a universal pricing schedule for FHA, VA, USDA, portfolio or other non-Fannie Mae loans.
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An LLPA is applied on the lender or investor side of the transaction. It changes the price the lender receives for delivering the loan. A lender can reflect that economics in different consumer-facing terms, such as the note rate, discount points, lender fees or credits. The matrix does not prescribe which of those terms a lender must use, and it does not calculate your complete closing disclosure.
Fannie Mae’s official matrix dated 09.30.2026 states: “All LLPAs are calculated based on the acquisition date principal balance and are cumulative.” In practical terms, you generally identify every applicable adjustment, add them according to the matrix rules, and then apply the combined result to the relevant balance. Footnotes, exclusions, waivers and credits can change that straightforward-looking calculation.
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Which LLPA grid is current?
For this guide, the applicable grid is Fannie Mae’s LLPA Matrix effective beginning September 30, 2026. Fannie Mae’s Eligibility & Pricing page provides the current matrix in PDF and spreadsheet formats and says the matrix is incorporated by reference into the Selling Guide and supersedes earlier versions.
Pricing grids can change. Before relying on an estimate for an application, lock, or closing decision, confirm that the lender is using the version effective for the relevant delivery date and transaction. A result from an older matrix may differ even when the borrower and property details have not changed.
Information to gather before you calculate
You cannot select a reliable matrix cell from a rough description such as “a 30-year conventional loan.” Gather the following facts first. The lender should confirm the values used for underwriting and delivery.
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- Transaction purpose: purchase, limited cash-out refinance, or cash-out refinance.
- Qualifying credit score: the score model and score used for pricing, rather than a score you selected from a consumer-monitoring service.
- LTV band: the LTV calculated from the lender’s value for the property and the applicable loan amount.
- Occupancy: principal residence, second home, or investment property.
- Property and unit type: for example, single-unit, two- to four-unit, condominium or manufactured housing.
- Product attributes: fixed-rate or adjustable-rate status, high-balance treatment, subordinate financing and any other feature listed in the matrix.
- Program and borrower eligibility: such as HomeReady, qualifying first-time-buyer status, income limits or Duty to Serve categories.
- Insurance coverage option: whether a mortgage-insurance coverage choice creates a separate adjustment.
- Balance used for the estimate: normally the principal balance to which the pricing adjustment applies, not an arbitrary rounded amount.
If any of these inputs is unknown, label the result as provisional. Changing the transaction purpose, score band, LTV band or property feature can move the loan into a different matrix cell.
Step-by-step method for estimating the adjustment
1. Select the transaction-purpose table
Start with the table for the actual transaction: purchase, limited cash-out refinance or cash-out refinance. These sections are distinct. Do not substitute a purchase table for a refinance or assume that a cash-out refinance uses the same adjustment as a limited cash-out refinance.
Write the purpose at the top of your worksheet and keep it attached to every later calculation. This simple check prevents a common error: carrying a percentage from a familiar table into a transaction for which it was not published.
2. Locate the qualifying score and LTV bands
Within the transaction section, find the applicable credit-score and LTV combination. The September 30, 2026 matrix labels its primary score bands as Classic FICO or VantageScore 4.0. The lender, not the borrower, determines the qualifying score used for underwriting and delivery. Ask the lender to identify the score model, score and date used for the quote.
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LTV is also lender-determined. It depends on the value used in underwriting and the loan amount under the transaction’s rules. A small change in value or loan amount can move a file across an LTV threshold, so do not infer the band from a preliminary online estimate if the lender has a different value.
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3. Add applicable feature adjustments
After finding the base score-and-LTV cell, review the additional-LLPA tables. Depending on the transaction, the matrix can contain adjustments for occupancy, condominium properties, second homes, investment properties, manufactured housing, two- to four-unit properties, high-balance fixed-rate loans, high-balance adjustable-rate loans, subordinate financing and other features.
Read the footnotes alongside each table. Some adjustments apply only to certain purposes, products or LTV bands; others have exclusions or cannot be combined in the way a quick spreadsheet might suggest. Record each applicable percentage separately before adding it. If an adjustment is not applicable, record the reason rather than silently leaving it out.
4. Check waivers, credits and exceptions
The matrix identifies categories that may receive a full LLPA waiver, including specified HomeReady cases, qualifying first-time buyers below applicable income thresholds and listed Duty to Serve categories. It also identifies conditional dollar credits for certain HomeReady, HomeStyle Energy, RefiNow and HomePath cases.
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1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteA program name alone does not establish eligibility. Verify the income, geography, underwriting, property and timing conditions in the matrix and the applicable program rules. A waiver can remove an adjustment, while a credit is a separate dollar item; do not treat a credit as if it were an additional negative percentage unless the matrix expressly says to do so.
Pay particular attention to the mortgage-insurance exception. The waiver language expressly excepts minimum mortgage-insurance coverage-option LLPAs when applicable. Therefore, a loan that qualifies for a broader waiver may still have an adjustment tied to the minimum coverage option. Show that item separately in your worksheet.
5. Add the applicable percentages
Combine the applicable percentage adjustments according to the matrix. “Cumulative” does not mean that every line in every table applies automatically. It means that adjustments that do apply are accumulated, subject to the matrix’s footnotes, exclusions and waiver language.
Keep signs and units consistent. A positive percentage increases the price adjustment; a listed credit or waiver may reduce or eliminate an amount under its own rules. Do not round each line prematurely. Retain enough decimal places to reproduce the lender’s result, then round the final dollar figure in the same manner as the lender’s quote.
6. Convert the result to dollars
Express the combined percentage as a decimal and multiply it by the applicable principal balance:
Dollar adjustment = (combined LLPA percentage ÷ 100) × applicable principal balance
For a purely illustrative example, a hypothetical $400,000 balance with a correctly identified cumulative adjustment of 0.50% produces:
0.005 × $400,000 = $2,000
The $2,000 is arithmetic based on the stated hypothetical values. It is not a published market statistic, does not establish that a particular borrower receives a 0.50% adjustment, and does not predict whether a lender will pass the amount through as points, a rate change, fees, a reduced credit or another pricing term.
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The balance used in a consumer worksheet and the balance used in Fannie Mae’s delivery calculation should be discussed with the lender. Fannie Mae’s Selling Guide says whole-loan LLPAs are calculated on the Purchase Ready date using unpaid principal balance. For mortgage-backed-securities transactions, LLPAs are calculated on the pool issue date using the pool issue balance.
Those are lender-facing timing and balance rules. They explain why a final investor calculation can differ from an early estimate made with a rounded loan amount or an assumed closing balance. Ask the lender which balance and delivery path underlie the written quote.
What changes the estimate most often?
| Pricing input | How it affects the estimate | What to verify |
|---|---|---|
| Transaction purpose | Purchase, limited cash-out refinance and cash-out refinance use separate matrix sections. | The purpose shown on the application and delivery file. |
| Credit score and model | The primary tables use score bands identified as Classic FICO or VantageScore 4.0. | The qualifying score model, score and lender calculation date. |
| LTV | The base adjustment varies by LTV band and can change at a threshold. | The value used for underwriting and the exact LTV calculation. |
| Occupancy and property | Second homes, investment properties, condominiums, manufactured homes and two- to four-unit properties can have additional adjustments. | Occupancy certification, property type and unit count. |
| Product features | High-balance fixed-rate and ARM products, subordinate financing and other listed features may carry separate adjustments. | Note rate structure, balance classification and subordinate financing terms. |
| Waivers and credits | Specified programs and borrower or property categories may remove an LLPA or provide a conditional dollar credit. | All eligibility conditions, income limits, geography and documentation. |
| Insurance coverage option | A minimum mortgage-insurance coverage-option adjustment may remain even when another waiver applies. | The coverage option and the matrix exception. |
Score-model changes and what they mean for your quote
A September 30, 2026 lender letter announced expanded VantageScore 4.0 availability to all Fannie Mae-approved lenders and alignment of LLPAs across Classic FICO and VantageScore 4.0. This does not mean every lender or every file will use the borrower’s preferred score model. The lender still determines which qualifying score is used under the underwriting path.
When comparing estimates, ask each lender to state the score model and score behind the quote. Two quotes that appear to use the same score number may not be comparable if one uses a different model, a different representative score or a different LTV calculation.
AMI waiver timing: current rule and future change
Fannie Mae’s April 15, 2026 notice describes a future change for area-median-income (AMI) waiver determinations. For Desktop Underwriter (DU)-underwritten loans with a casefile creation date on or after January 15, 2027, the DU casefile creation date will determine AMI eligibility rather than the application-received date. Under that notice, non-DU loans continue to use the application-received date.
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As of October 13, 2026, that future-dated rule should not be treated as already effective. Have the lender apply the rule that matches the loan’s underwriting path and the relevant date. A borrower who is near an income or timing threshold should request the lender’s written eligibility determination rather than assuming that an application date or a DU date controls in every case.
Turning an LLPA estimate into an actual mortgage-cost comparison
The matrix is one input to pricing, not a complete offer. Fannie Mae’s lender-facing pricing API combines asset price, servicing-released premiums, LLPAs and other adjustments into an all-in pricing response. That structure explains why a matrix percentage alone cannot reproduce a lender’s consumer quote.
Request comparable written pricing from each lender, preferably Loan Estimates issued for the same scenario. Keep the loan amount, term, product, lock period, occupancy, property type, points and credits constant when comparing offers.
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|---|---|
| Interest rate | The rate determines the scheduled principal-and-interest payment and may be the lender’s way of reflecting pricing adjustments. |
| Discount points | Points can convert a pricing difference into an upfront charge; compare the dollar amount, not only the rate. |
| Origination and lender fees | A lender may use fees to reflect its own pricing and operational costs in addition to investor adjustments. |
| Lender credits | Credits can reduce closing costs but may be paired with a higher rate or other pricing terms. |
| Mortgage-insurance cost and coverage | The coverage option can interact with an LLPA waiver exception and also changes the monthly payment. |
| Lock period and expiration | Pricing can change when the lock period or delivery timing differs. |
| Cash to close and total payments | These consumer outcomes cannot be derived from the LLPA percentage alone. |
Ask the loan officer to identify whether the stated LLPA was passed through as a rate adjustment, points, a fee, a credit or a combination. If the lender will not disclose a line-by-line investor calculation, you can still compare the final written offers, but you should not present your own matrix arithmetic as the lender’s exact consumer charge.
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Use one row for each input and retain the source or document where the lender confirmed it.
- Record the matrix version and effective date: September 30, 2026, unless a later version applies to the transaction.
- Record transaction purpose: purchase, limited cash-out refinance or cash-out refinance.
- Record the qualifying score model and score supplied by the lender.
- Record the property value, loan amount and resulting LTV band.
- Copy the applicable base matrix percentage into the worksheet.
- Review every additional-feature table and record each applicable adjustment with its footnote or exclusion.
- Check waiver eligibility and list the documentation or income and geography condition that supports it.
- Check conditional dollar credits separately from percentage adjustments.
- Check whether the minimum mortgage-insurance coverage-option exception applies.
- Add the applicable percentages, convert the total to decimal form and multiply by the applicable balance.
- Place the arithmetic beside the lender’s written rate, points, fees, credits and Loan Estimate figures.
Common mistakes and how to correct them
Using the wrong transaction table
Symptom: A borrower copies a purchase adjustment into a cash-out refinance worksheet. Correction: restart with the transaction-purpose section that matches the application and delivery file.
Using a self-reported score
Symptom: The borrower uses a score from an app or credit-monitoring service. Correction: ask for the lender’s qualifying score, model and date. Classic FICO and VantageScore 4.0 are identified score models in the current matrix, but the lender determines which is used.
Estimating LTV from the listing price
Symptom: The estimate uses a purchase price or automated value that differs from the lender’s underwriting value. Correction: use the value and loan amount the lender confirms for the LTV calculation.
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Adding every table row
Symptom: The worksheet includes adjustments for features the loan does not have. Correction: apply only rows whose conditions are met, and read the footnotes and exclusions before treating them as cumulative.
Assuming a program label guarantees a waiver
Symptom: The borrower assumes that a HomeReady or first-time-buyer label automatically removes every LLPA. Correction: verify each income, property, geography, underwriting and timing condition and check the mortgage-insurance coverage exception.
Calling the calculated dollars a borrower fee
Symptom: The worksheet describes 0.50% of the balance as a mandatory closing charge. Correction: describe it as an estimated lender-side pricing adjustment and compare it with the lender’s actual rate, points, fees and credits.
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Relying on an outdated matrix
Symptom: The estimate uses a version published before September 30, 2026. Correction: confirm the effective matrix tied to the lender’s delivery and lock timing.
How to interpret a disagreement with the lender
A difference between your arithmetic and a Loan Estimate does not automatically indicate an error. First check whether the two calculations use the same matrix version, transaction purpose, score model, LTV band, property features, balance, waiver status and insurance coverage option. Then ask whether the lender’s price includes other investor or lender adjustments beyond the LLPA.
If the inputs match and the difference remains, request a written explanation of which LLPA lines were applied, waived or credited and how the lender translated the investor price into the consumer rate and closing-cost structure. The lender’s quote, not an isolated matrix percentage, is the document that establishes your offered mortgage terms.
Limits of an LLPA-only estimate
- It does not determine the borrower’s interest rate.
- It does not determine discount points, origination fees or lender credits.
- It does not calculate mortgage insurance, taxes, homeowners insurance, prepaid items or total cash to close.
- It does not establish eligibility for HomeReady, first-time-buyer, Duty to Serve, RefiNow, HomeStyle Energy, HomePath or another program without checking the program conditions.
- It does not apply to every type of mortgage or every investor.
- It does not replace the lender’s underwriting, lock confirmation or Loan Estimate.
The most useful result is therefore a documented range or scenario that shows the matrix inputs and arithmetic, followed by a like-for-like comparison of lenders’ written offers. That approach preserves what the grid can tell you—how specified loan characteristics affect investor pricing—without claiming that the grid alone predicts your final mortgage cost.
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