An appraisal price adjustment for seller concessions depends on their effect on a comparable sale’s price. It does not automatically equal the seller’s expense. A dollar-for-dollar deduction is appropriate when market evidence supports it; the concession amount alone cannot establish the adjustment. Fannie Mae’s adjustment guidance makes that distinction explicit.

Seller concessions are benefits accompanying a real estate transaction, such as paying the buyer’s financing costs or including personal property. The valuation concern is whether those benefits increased the price attributed to the real estate. Fannie Mae explained that risk in its December 2023 Seller Concession Concerns article. This explanation follows conventional mortgage appraisal guidance from Fannie Mae and Freddie Mac.

Why a dollar-for-dollar adjustment is not automatic

Fannie Mae’s September 2024 clarification warned against assuming either no price effect or a full dollar-for-dollar effect. An unsupported full deduction could undervalue the property.

Calling a concession “typical” does not resolve its treatment: common concessions can still affect prices. Ordinary costs sellers pay in virtually all transactions because of local tradition or law are a separate consideration and do not require adjustments. Fannie Mae preserves these distinctions in its UAD 3.6 policy supplement, published September 2, 2026.

The question is what the comparable would have sold for without the concession. Freddie Mac’s July 30, 2024 explanation says the price effect can be smaller than, equal to, or greater than the concession expense.

A hypothetical comparison: expense, proceeds and value

Suppose an agent is reviewing two closed sales as possible comparables. Home A sold for $500,000 with a $15,000 seller credit toward buyer closing costs. Home B sold for $490,000 without a credit.

These are invented figures, not market observations. The example does not establish that the homes are sufficiently similar in condition, location, features or sale date to isolate a concession effect. For the cash calculation only, assume each seller also paid $25,000 in other selling costs and a $300,000 mortgage payoff, with no additional settlement items.

Subtracting Home A’s $15,000 credit leaves $485,000 before other selling costs and the mortgage payoff. After those deductions, the seller receives $160,000. Under these assumptions, Home B produces $5,000 more seller cash despite its lower sale price.

None of those calculations establishes an appraisal adjustment. Home A’s $10,000 higher sale price could reflect property differences, market changes, the concession or a combination. Treating $485,000 as its price without the concession would require market evidence.

For appraisal purposes, the relationship is:

Comparable sale price − supported price increase attributable to the concession = price after the concession adjustment.

The example leaves the supported price effect unresolved. Other property and market-condition adjustments, followed by the appraiser’s reconciliation of the comparables, are still needed to develop the value of the home being appraised. Fannie Mae describes those adjustment and reconciliation requirements.

When comparing home prices and valuation measures, distinguish the closed price, price less credit, seller net proceeds and adjusted comparable indication. Use a separate net sheet when weighing selling decisions.

What evidence supports a concession adjustment?

Fannie Mae’s September 2024 Appraiser Update identifies paired sales analysis: comparing similar sales with and without concessions, including cash transactions. Builder price sheets can also help test whether cash buyers, financed buyers without incentives and financed buyers receiving incentives faced the same base price. Upgrades, change orders and lot premiums can complicate that comparison. The appraiser should test the builder’s explanation and describe the analysis in the report.

For the hypothetical pair, that means investigating why the homes sold for different amounts. Transaction documents can establish what a seller paid; a credible comparison must also address what else differed between the sales.

The credit on the home being appraised should not become an automatic deduction from its appraised value. Freddie Mac’s concession guidance explains that concession adjustments address comparable properties’ sale prices; the subject property’s negotiated terms do not change those prices.

What agents should preserve and communicate

For the property being appraised, Fannie Mae requires the lender to provide, or ensure delivery of, the complete ratified sales contract and all addenda. Relevant financing terms and concessions must be disclosed under its disclosure guidance.

Fannie Mae’s contract-reporting guidance also calls for reporting concession amounts and describing the items paid. As a practical recordkeeping approach, preserve:

• The amount and purpose: identify closing-cost assistance, a rate buydown, personal property or another benefit separately.
• The transaction documents: retain the contract, concession addenda and available closing documentation; distinguish an offered allowance from an amount actually paid.
• The pricing context: keep dated price sheets, incentive terms, upgrades and lot premiums when relevant.
• The verification trail: record who confirmed the information, when, and what remains unknown. Share documents only as authorized.

For separate treatment of brokerage compensation and buyer credits, see seller-paid commission versus closing credit.

Keep documented facts separate from valuation conclusions. “The seller paid $15,000 toward buyer closing costs” describes a payment. “The credit increased the price by $15,000” requires additional evidence. Discuss that evidence with the lender and appraiser handling the transaction.