Buy Down a Mortgage Rate
How to Buy Down a Mortgage Rate — Temporary vs. Permanent (and When It Makes Sense)
Featured snippet — What this means
To buy down a mortgage rate means paying an upfront sum (by buyer, seller, builder, or lender) to lower your mortgage interest—either temporarily for a few years or permanently via discount points. For Tampa or Florida buyers, this can smooth initial cash flow while you watch market trends or build equity.
What does “buy down a mortgage rate” mean?
A mortgage rate buydown is an upfront payment that reduces your interest rate. It comes in two flavors:
- Temporary buydown: Rate is reduced for a set period (1–3 years), then reverts to the contract (note) rate.
- Permanent buydown: Also called discount points—you pay now to lower the rate for the life of the loan.
Lenders usually qualify you at the full note rate. Pro tip: confirm on the Loan Estimate whether qualification is at the note rate or the buydown rate.
Temporary buydowns (2-1, 3-2-1, 1-0): how they work
Common schedules:
- 2-1: 2.00% lower year 1, 1.00% lower year 2.
- 3-2-1: 3% → 2% → 1% over three years.
- 1-0: 1% lower for year 1 only.
Mechanics: the subsidy equals the interest difference for each payment period and is usually paid at closing by whoever agreed to fund it. Lenders often still qualify at the full rate to avoid short-term affordability turning into long-term problems.
Example — 2-1 buydown (real numbers)
- Purchase $400,000, 20% down → loan = $320,000
- Contract (note) rate: 6.50% (30-year fixed)
- 2-1 schedule: Year 1 = 4.50%, Year 2 = 5.50%, Year 3+ = 6.50%
Approximate P&I:
- Year 1 (4.50%): $1,622
- Year 2 (5.50%): $1,817
- Year 3+ (6.50%): $2,024
Savings vs full-rate payment:
- Year 1: $402/month → $4,824 year
- Year 2: $207/month → $2,484 year
- Total two-year subsidy ≈ $7,308 up front (402×12 + 207×12)
- Cost as share of loan: $7,308 ÷ $320,000 ≈ 2.29%
Note: lenders may compute the lump sum using present-value math—run these numbers with your lender’s buydown calculator. If a builder or seller offers the subsidy, it often feels like free money—confirm it’s listed on the Loan Estimate.
Permanent buydowns (discount points): how they work
One point = 1% of the loan amount paid at closing to lower the interest rate for the life of the loan.
Rule of thumb: 1 point ≈ 0.25% rate reduction (varies by lender and market). You can buy fractional points.
Example — 1 point on $320,000
- Cost: 1% × $320,000 = $3,200
- Estimated rate change: 6.50% → 6.25% (≈0.25%)
- Monthly savings ≈ $52 → $624/year
- Break-even: $3,200 ÷ $624 ≈ 5.13 years
If you expect to stay longer than the break-even, buying points can be smart. If you plan to sell or refinance sooner, probably not.
Who pays for a buydown?
- Buyer: pays discount points or funds a temporary subsidy.
- Seller or builder: common as incentives to move inventory (especially in Florida new-build markets).
- Lender: may offer credits or promotions.
- Third party: sometimes brokers contribute based on rules.
Concession limits depend on loan program (FHA, VA, conforming). Pro tip: negotiate who pays as part of the purchase terms—seller-paid buydowns can lower your payments without draining reserves.
Tax treatment of points
Discount points are generally prepaid mortgage interest. If you itemize, you may deduct points in the year paid if IRS rules are met (principal residence, amount is typical for the area, points shown on closing statement). Otherwise, points may need to be amortized over the loan life. Always consult a tax pro.
When does a buydown make sense?
Consider a buydown if:
- You expect to stay beyond the break-even for permanent points.
- You need lower payments in the first few years (temporary buydown).
- A seller/builder offers the buydown as a concession.
- You can’t qualify at the full rate but can at an initial reduced payment (confirm lender rules).
- You plan to refinance later when rates fall.
When NOT to buydown:
- You’ll move or refinance before break-even.
- It would deplete your reserves or emergency funds.
- The lender has better credits or incentives.
Quick rule: temporary buydown = solve short-term cashflow; permanent points = long-term rate savings.
Pros and cons (quick)
Pros
- Immediate or lasting lower payments.
- Helps with qualification and initial cashflow.
- Seller-paid versions may cost you nothing upfront.
- Points may be tax-deductible (check rules).
Cons
- Upfront cash can be substantial.
- Temporary buydowns only delay higher payments.
- Lenders usually qualify at the full rate anyway.
- May not recoup cost if you sell/refinance early.
How to evaluate a buydown — step-by-step
- Get the Loan Estimate and insist on the buydown cost breakdown.
- Calculate monthly payments at the full rate and the buydown rate(s).
- Compute annual and total savings for the buydown window.
- For permanent points, compute break-even (points cost ÷ annual savings).
- Factor in who pays—buyer, seller, or lender.
- Check loan program rules for concession limits.
- Ask a tax advisor about deductibility.
- Use lender calculators (e.g., Bankrate) to confirm exact premiums—formulas vary.
Put scenarios into a spreadsheet—full rate, temporary buydown, and 0/1/2 points—and compare break-even and net present value against your expected hold period.
Quick checklist before you buy down
- Know the note rate and exact buydown schedule.
- Confirm how lender qualification is handled.
- Get the buydown cost on the Loan Estimate.
- Calculate break-even and compare with your expected hold period.
- Verify tax treatment with your CPA.
Pro tip: if a seller offers credits, confirm they’re specifically allocated to the buydown—don’t let vague language leave you with a surprise higher payment.
Related topics to link next
- How Mortgage Points Affect Your Monthly Payment
- Temporary Rate Buydowns Explained for Homebuyers
- Should Tampa Buyers Negotiate Seller-Paid Concessions
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