Mortgage rate buydown as a seller concession in 2027: 2-1 buydown, 3-2-1 buydown, and permanent buydown explained

A 2-1 buydown is a temporary interest rate reduction where the buyer pays a lower rate for the first two years of the mortgage, then permanently settles at the contract (note) rate. Year 1: rate is 2% below the note rate; Year 2: rate is 1% below the note rate; Year 3+: full note rate applies. Example at 7.0% note rate: Year 1 at 5.0%, Year 2 at 6.0%, Year 3+ at 7.0%. The cost difference is funded upfront — deposited into an escrow account and drawn monthly to subsidize the reduced payment. The CFPB Loan Estimate will show the buydown cost in origination charges.

In 2027, seller-paid buydowns are the dominant structure. Sellers with motivated listings offer a rate buydown as a concession instead of reducing the purchase price — because a buydown is often more valuable to the buyer on a monthly cash-flow basis. Example: a $10,000 price reduction saves a buyer ~$60/month at 7%. A $10,000 buydown fund on a $400,000 loan buys roughly a 2-year 2-1 buydown saving ~$500/month in year 1 and ~$250/month in year 2 — a much greater impact. Builders are especially aggressive with buydown programs because they protect the home's price comparables. Fannie Mae seller concession limits (B2-1.3-02).

The cost equals the sum of the payment differences over the buydown period. Formula: (Year 1 monthly savings × 12) + (Year 2 monthly savings × 12). Example on a $400,000 loan at 7.0% note rate: Year 1 payment at 5.0% = $2,147; at 7.0% = $2,661 → Year 1 savings = $514/mo × 12 = $6,168. Year 2 payment at 6.0% = $2,398; at 7.0% = $2,661 → Year 2 savings = $263/mo × 12 = $3,156. Total 2-1 buydown cost: $9,324. This amount is collected at closing, deposited in escrow, and disbursed monthly to the lender over 2 years.

If the buyer refinances within the 2-year buydown period, the remaining unused buydown funds in escrow are returned as a credit — typically applied to the new loan's closing costs. This is one reason buydowns are a rational bet in 2027: if rates decline and the buyer refinances in year 1 or 2, they recover the unused portion. Sellers should be aware that the "wasted" buydown cost in a refinance scenario is recovered by the buyer, not kept by the lender. This makes buydowns more flexible than permanent points for rate-uncertain environments. Confirm the refund mechanics with your lender before closing.

A permanent buydown uses discount points to permanently reduce the note rate — every 0.125–0.25% rate reduction costs approximately 1 point (1% of loan amount). The lower rate lasts the full loan term. A temporary buydown (2-1, 3-2-1) only reduces the rate for the first 2–3 years, then reverts to the original note rate. Permanent buydowns make sense for long-hold buyers in stable rate environments. Temporary buydowns make sense when: (1) buyers expect income to grow; (2) rates are expected to fall and refinancing is planned; (3) sellers fund it as a concession to close a deal. Read the mortgage points guide for permanent buydown analysis.

Yes. Seller concessions (including buydowns) are capped by loan type and LTV: Conventional (Fannie/Freddie): 3% of purchase price for LTV >90%; 6% for 75–90%; 9% for ≤75%. FHA: 6% of purchase price. VA: 4% of purchase price. USDA: no formal cap but subject to appraisal. The total of all seller concessions — including buydown cost, closing cost credits, and any other contributions — cannot exceed these limits. On a $400,000 purchase with 5% down (95% LTV), the max conventional concession is 3% = $12,000 — enough to fund a full 2-1 buydown. Fannie Mae seller concession guide.