By Frederick Blum, Blum Realty Group
If a seller is willing to give you $20,000 in negotiating room, how should you use it?
A lower price sounds like the obvious answer. Sometimes it is. In other situations, an allowable closing-cost credit can do more for the buyer’s immediate cash position. A mortgage buydown can provide another option, but it needs to be understood beyond the first payment shown in the advertisement.
These choices solve different problems.
The right question is not simply, “Which one gives me the biggest concession?” It is, “Which one improves this purchase in the way I actually need?”
Start by identifying what is tight
Before structuring the request, identify the real constraint.
Is it the cash needed to close? The long-term monthly payment? The amount you are paying for the property? Or the cushion you will have after moving?
Those are related, but they are not interchangeable.
For example, a buyer who can comfortably afford the mortgage but would be left short on reserves may value eligible closing-cost assistance differently from a buyer who has plenty of cash but wants a lower ongoing obligation.
That does not make one buyer more sophisticated. It means the same seller concession can have different practical value.
What a $20,000 price reduction actually changes
Consider this hypothetical purchase:
- Purchase price: $800,000.
- Down payment: 20%, or $160,000.
- Mortgage: $640,000.
- Fixed interest rate: 6.5%.
- Repayment term: 30 years.
Monthly principal and interest would be approximately $4,045.
Now reduce the price to $780,000 while keeping the down payment at 20% and assuming identical loan pricing:
| Item | Original price | Price reduced by $20,000 |
|---|---|---|
| Purchase price | $800,000 | $780,000 |
| Down payment | $160,000 | $156,000 |
| Mortgage amount | $640,000 | $624,000 |
| Monthly principal and interest | $4,045 | $3,944 |
The buyer brings $4,000 less toward the down payment and pays approximately $101 less per month in principal and interest.
The mortgage balance also starts $16,000 lower.
That is a real benefit. It just is not the same as reducing the buyer’s cash needed at closing by the entire $20,000.
These calculations exclude taxes, insurance, HOA dues, mortgage insurance, and transaction expenses. They illustrate the financing mechanics, not available loan terms.
What a seller credit can—and cannot—do
A seller credit generally directs agreed funds toward eligible buyer expenses rather than reducing the purchase price.
For a conventional loan following Fannie Mae requirements, seller contributions cannot replace the buyer’s down payment, required reserves, or minimum borrower contribution. They are also limited by both the applicable contribution ceiling and the actual eligible costs. Loan program, occupancy, and financing structure affect what is permitted. Fannie Mae’s seller-contribution rules
Suppose the seller agrees to a $20,000 credit, but the lender confirms only $12,000 of eligible expenses under the proposed structure.
You should not assume the remaining $8,000 becomes spending money after closing.
Resolve the difference before final documents. Depending on the contract and loan rules, the parties may need to revise the price, restructure permitted costs, or otherwise address a credit that cannot be fully used.
The practical rule is simple: negotiate a credit you can use, not just a number that looks good in the counteroffer.
A temporary buydown helps with early payments
A temporary buydown uses a funded subsidy to cover part of the initial mortgage payments. It does not permanently reduce the interest rate in the note.
Using the same hypothetical $640,000 loan at a 6.5% fixed note rate, a 2-1 buydown would produce approximately:
| Period | Buyer’s monthly principal-and-interest contribution |
|---|---|
| First year, calculated using 4.5% | $3,243 |
| Second year, calculated using 5.5% | $3,634 |
| Third year onward, at the 6.5% note rate | $4,045 |
The subsidy supplies the difference during the first two years.
In this example, the total scheduled subsidy is approximately $14,566, before any separate charges. A $20,000 seller credit would not necessarily all be needed for the buydown, and any remainder would still need an allowable use.
Freddie Mac provides an explanation of the 2-1 structure. For loans governed by Fannie Mae’s rules, the lender qualifies the buyer at the note rate, without relying on the temporary reduction. Fannie Mae’s temporary-buydown requirements
That distinction protects against confusing temporary relief with permanent affordability.
Do not make refinancing the plan that holds everything together
A temporary buydown can provide useful breathing room during the first years of ownership.
What I would not do is justify an uncomfortable permanent payment by assuming a refinance will become available before the subsidy ends.
A future refinance depends on future rates, property value, credit, income, loan requirements, and transaction costs. None of those is established by today’s purchase agreement.
Run the household budget at the full payment now. If refinancing later improves the situation, that is a potential benefit—not the condition that makes the purchase survivable.
Also ask what happens to unused subsidy funds if you sell or refinance early. The written buydown agreement controls; do not assume an automatic cash refund.
Permanent discount points are a different calculation
With a fixed-rate mortgage, permanent discount points are an upfront cost paid to obtain a lower contractual interest rate.
One point equals 1% of the loan amount. On a $640,000 mortgage, one point costs $6,400.
It does not mean the rate falls by one percentage point. The actual reduction depends on the loan and the lender’s pricing. CFPB’s explanation of points and lender credits
Suppose two otherwise comparable written loan quotes show that paying an additional $6,400 reduces the payment by $160 per month. A simple cash-flow break-even calculation would be:
$6,400 ÷ $160 = 40 months.
That is a starting point, not a complete financial analysis. You should also compare remaining loan balances, other costs, and the value of keeping the cash available.
Most importantly, consider how long you expect to keep that mortgage, not just how long you expect to own the property. Selling or refinancing early can shorten the period in which the lower rate provides value.
Ask for a comparison you can actually use
Before choosing a concession, request written versions of the relevant alternatives using consistent assumptions.
For each option, compare:
- Purchase price and down payment.
- Loan amount and note rate.
- Points and lender charges.
- Buyer-paid closing costs and prepaid expenses.
- Cash required at closing.
- Initial payment and any later payment changes.
- Estimated remaining balance at your likely sale or refinance date.
- Cash left after closing.
Review the Loan Estimate alongside any separate buydown agreement. APR can help compare borrowing costs, but it should not replace the cash-to-close and payment comparison. CFPB’s guide to comparing Loan Estimates
Use property-specific taxes, insurance, and HOA costs. Our San Diego carrying-cost guide explains why a mortgage-only budget is incomplete.
Remember that the property still needs to justify its price
A seller credit is not a reason to ignore comparable sales or an appraisal issue.
An $800,000 price with a $20,000 credit and a $780,000 price may look similar before other seller expenses, but they are not identical transactions for the buyer or lender.
The higher-price structure leaves a different loan balance and may affect other costs. Financing concessions also receive their own underwriting treatment.
I would establish a defensible price range first, then decide how to structure the offer within it.
For sellers, the useful question is which structure creates the strongest realistic path to closing—not which version preserves the most flattering headline price.
Common questions
Is a seller credit always better than a price reduction?
No. A usable credit can help with immediate expenses, while a price reduction lowers the purchase obligation. Your cash position, loan terms, and ownership plans determine which benefit matters more.
Can I use a seller credit as my down payment?
Not under the Fannie Mae conventional rules discussed here. Other programs have their own requirements, but you should never assume a negotiated credit substitutes for required buyer funds.
Is a 2-1 buydown the same as an adjustable-rate mortgage?
No. In this fixed-rate example, the contractual note rate stays at 6.5%. The buyer’s early contribution changes because a temporary subsidy covers part of the payment.
Should I automatically spend the remaining credit on points?
No. First confirm that the credit is usable and compare the value of points with other permitted costs. Paying for a rate reduction you are unlikely to keep long enough may not be your best option.
Negotiate around the problem you need to solve
A good concession should leave you in a stronger position after closing, not merely make the offer sound more attractive.
Before choosing between price, credit, and buydown, contact me to discuss the property and your priorities. The goal is an offer whose price, financing, and cash requirements make sense together.
General educational information, not a rate quote or commitment to lend. Contribution limits, buydown availability, and borrower eligibility vary by program and lender.