Mortgage Points Calculator (Rate Buy-Down)
Mortgage points calculator. Compute breakeven months, lifetime interest saved, and whether buying discount points is worth it for your expected hold period.
Mortgage Points Calculator
How to use the mortgage points calculator
Enter base rate (without points)
The standard "par" rate your lender quotes — the rate you'd get without paying any discount points. From your Loan Estimate (Page 1, "Interest Rate"). Freddie Mac's weekly survey put the average 30-year fixed rate at 6.76% on 10 September 2026.
Enter the buy-down rate (with points)
The lower rate your lender offers if you pay points at closing. From your Loan Estimate alternate quote. There is no fixed exchange rate: the CFPB's example is one point buying a 0.25-point rate reduction, but the same point buys more or less at different lenders and on different days — read it off your own Loan Estimate.
Enter the points cost (% of loan)
1 point = 1% of loan amount. On a $320K loan, 1 point = $3,200 cash at closing; 2 points = $6,400. By law, points shown on your Loan Estimate must be tied to a lower rate (CFPB). Compare cost against benefit using the breakeven below.
Enter your expected hold period
Critical input. Home sellers in the 2024 NAR Profile of Home Buyers and Sellers had owned for a median of 10 years — but what matters is how long you keep this loan, and a refinance ends it just as surely as a sale. Be honest about job mobility and the chance rates fall. The longer you hold, the more points work in your favour.
Read the breakeven verdict
Breakeven = upfront cost / monthly savings. If you hold the loan LONGER than breakeven, points were worth it. If you sell or refinance BEFORE breakeven, you lost money. The verdict box shows: GREEN if hold >> breakeven; YELLOW if marginal; RED if hold < breakeven. Also consider rate trajectory — if rates drop, you'll refinance and points become wasted.
Mortgage points — when paying upfront to lower your rate actually pays off
Discount points are an option offered by mortgage lenders: pay 1% of your loan amount upfront at closing, and they lower your interest rate — by how much is set by each lender, with a quarter of a point per point being the CFPB's worked example. The trade-off is simple in concept but tricky in practice — you're trading certain upfront cash for uncertain future interest savings. Whether it makes sense depends almost entirely on how long you keep the loan. The breakeven math is straightforward: divide the upfront points cost by the monthly payment savings, and you get the number of months you must hold the loan to break even. Hold longer = profit; sell or refinance before breakeven = loss.
Why most borrowers shouldn't buy points
The uncomfortable part: many borrowers do not keep a loan long enough for points to pay off. Sellers in the 2024 NAR profile had owned their homes for a median of 10 years, but a mortgage ends earlier than the home does whenever the owner refinances — and refinancing is exactly what happens when rates fall. On the default inputs above (2 points, 0.5 point off a $320,000 loan) the breakeven is about 60 months, so the decision hinges on whether you will still hold this loan in five years. If you are unsure, or rates look likely to fall, skip the points.
Mortgage points are a calculated bet that rates won't fall meaningfully during your hold period. In 2022-2024 when rates hit 7-8%, many borrowers paid 2-3 points expecting rates to stay high — then refinanced when rates dropped. They paid for nothing.
When points DO make sense
Three scenarios. (1) Long-term forever-home: planning to stay 15+ years. Points definitely pay off if the rate environment is normal. (2) High rate environment + low rate expectation: if rates seem unlikely to fall further (e.g. already near historic lows), buying down is cheaper than waiting for future refinancing. (3) Tax considerations: in the US, points on a loan to buy your main home can be deducted in full in the year paid if you itemise and meet the tests in IRS Publication 936 (otherwise they are deducted over the life of the loan). For high-bracket earners, this offsets some of the upfront cost. Don't buy points if: you might sell/refinance within 5 years, you have higher-return uses for the cash (paying off credit cards, retirement contributions), or rates have meaningfully more room to fall.
ASEAN context
Mortgage discount points are predominantly a US concept. ASEAN markets generally don't offer the same explicit point/rate trade-off. Singapore: HDB + bank mortgages have fixed package terms (fixed/floating periods + lock-in fees) but no traditional discount points. Malaysia, Indonesia: same — rate is rate, no buy-down option. The closest parallel: choosing between higher-rate / lower-cost vs lower-rate / higher-fee packages — the breakeven math is identical. Hong Kong, Australia: some lenders offer rate-buy-down products but less standardised than US.
One point costs 1% of the loan; breakeven is that cost divided by the monthly saving
1 point = 1% of the loan, paid at closing (CFPB). How much rate it buys is lender-specific — the CFPB's example is 0.25 of a point.
Breakeven = upfront cost / monthly savings. Hold longer than breakeven = profit.
US home sellers' median tenure was 10 years in 2024 (NAR) — but a refinance ends the loan sooner, and the default inputs above break even at about 60 months.
By law, points listed on your Loan Estimate must be connected to a discounted interest rate (CFPB) — a fee that buys no rate reduction is not a discount point.
Points on a loan to buy your main home can be deducted in the year paid if you itemise and meet the IRS Publication 936 tests; otherwise they are spread over the loan term.
"Origination points" ≠ "discount points". Origination is lender fee; only discount points buy down the rate.
"Negative points" (credits): some lenders give you cash at closing in exchange for a higher rate. Reverse trade-off.
Points are not refundable if you refinance early. You lose the upfront cost.
2022-2024 rate cycle: many borrowers paid points expecting high rates, then refinanced when rates dropped — wasted money.
Best candidates: long-term holds (10+ years), low-rate-volatility environments, high-bracket borrowers who itemize.
Frequently asked questions
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Origination points: the lender's upfront fee for processing your loan — typically 0.5-1% of loan amount. Doesn't reduce your rate; it's just compensation to the lender. Discount points: optional upfront payment specifically to reduce your interest rate. Only discount points provide a rate benefit. The Loan Estimate separates these clearly. This calculator focuses on discount points; origination points are typically a fixed lender fee you can shop around for.
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Per IRS Publication 936, points are prepaid interest and are generally deducted ratably over the life of the mortgage. The exception: points paid on a loan to buy or build your main home can be deducted in full in the year paid if all of the publication's tests are met — the loan is secured by your main home, paying points is an established practice in your area, the amount is clearly shown as points on the settlement statement, and the funds you brought to closing at least equal the points, among others. Points on a refinance are spread over the term (except the portion tied to substantial improvements). The mortgage-interest deduction itself is limited to $750,000 of acquisition debt incurred after 15 December 2017. Consult a tax adviser.
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Some. The CFPB notes that discount points have no fixed value — one lender may offer a 0.25-point rate reduction per point where another offers less or more for the same cost. Collect Loan Estimates from several lenders on the same day, compare the rate-versus-points trade-off on each, and ask a lender to match a better quote. Sometimes a lender absorbs part of a point to win the deal.
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Reverse trade: lender pays YOU cash at closing in exchange for a higher rate. Useful when (a) you're short on cash for closing, (b) you expect to refinance/sell soon (the higher rate doesn't matter much short-term), (c) the cash credit offsets your closing costs. Math is the inverse of points: figure out how long it takes for the higher monthly payment to exceed the upfront credit. If your hold period exceeds that breakeven, lender credits cost you money.
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Skip the points. If you refinance before breakeven, points become wasted money. The 2022-2024 rate cycle is a cautionary tale: many borrowers paid 2-3 points expecting rates to stay high — then refinanced when rates dropped to 5-6%. They lost the upfront cost AND missed out on additional rate reduction. As a rule: if there's any meaningful possibility rates could fall by 100bps+ during your expected hold, don't pay points.
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Points are a closing cost, normally paid in cash at closing. Whether any closing costs can be financed depends on the lender and loan programme — and financing points means paying interest on money you spent to lower your interest, which erodes the benefit. A lender credit (taking a higher rate in exchange for cash toward closing costs) is the opposite trade. If you don't have cash for points, the par rate is usually the better path.
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It doesn't — the calculator shows pre-tax cash flows. For high-bracket borrowers who itemize, the after-tax cost of points is lower (because deductible). To estimate: multiply upfront cost by (1 − marginal tax rate). E.g. $6,400 in points at 35% bracket has after-tax cost of ~$4,160. This makes breakeven shorter by the same factor. Consult a CPA for your exact tax situation.
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Often yes — if it gets you to 20% down and avoids private mortgage insurance. Compare: on the default inputs, $6,400 in points lowers the payment by about $107 a month. If $6,400 more down payment would take you to 20% equity, it removes the PMI premium entirely (a fraction of a percent of the loan each year) and also shrinks the balance you pay interest on. Run both scenarios — this calculator for the points, our PMI calculator for the insurance — before deciding. As a rule, reach 20% down before considering discount points.
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No. Loan, rate, points, hold period — every input stays in your browser. The points + breakeven computation runs entirely client-side. Open DevTools → Network when you click Analyse and you'll see zero outbound requests.
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CFPB Discount Points guide (consumerfinance.gov/owning-a-home/) — clear consumer explanation. HUD Handbook 4000.1 for FHA point rules. IRS Publication 936 for tax treatment. Lender Loan Estimates are required to clearly disclose points + their cost; compare across 3-5 lenders before deciding.
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Method & sources
How it computes
Upfront cost = points% × loan; monthly saving = PMT(base rate) − PMT(buy-down rate) using the level-payment annuity formula over the term; breakeven months = upfront cost ÷ monthly saving; net benefit over the hold = saving × hold months − upfront cost (pre-tax, ignoring balance differences and reinvestment).
What this tool implements
- One discount point = 1% of the loan amount (CFPB); the rate reduction per point is a lender-specific input, not a constant
- Breakeven compares payments only — the small difference in remaining balance at sale and any tax effect are ignored (stated on page)
- US tax treatment quoted from IRS Publication 936; hold-period reference from NAR's 2024 Profile of Home Buyers and Sellers (sellers' median tenure 10 years)
Sources
- Consumer Financial Protection Bureau. What are (discount) points and lender credits and how do they work? https://www.consumerfinance.gov/ask-cfpb/what-are-discount-points…
- Internal Revenue Service. Publication 936, Home Mortgage Interest Deduction (2025), Points. https://www.irs.gov/publications/p936
- National Association of Realtors. 2024 Profile of Home Buyers and Sellers — median tenure in home 10 years. https://www.nar.realtor/research-and-statistics/research-reports/…
- Freddie Mac. Primary Mortgage Market Survey, week of 10 September 2026 (30-yr FRM 6.76%). https://www.freddiemac.com/pmms
What can make this go out of date
- Freddie Mac PMMS rate quoted in how-to step 1 (weekly)
- NAR median tenure (annual)
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