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Mortgage Points Calculator

Break-Even & Lifetime Savings

Last reviewed: May 2026

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What Is a Mortgage Points Calculator?

A mortgage points calculator determines whether paying discount points at closing saves money over the loan's life. Each point costs 1% of the loan amount and typically reduces your rate by 0.25%. The break-even period — how long it takes for monthly savings to recoup the upfront cost — is the key decision metric.1

How Mortgage Points Work

PointsCost ($350K)Rate (from 7%)Monthly SavingsBreak-Even
0$07.00%
1$3,5006.75%$5860 months
2$7,0006.50%$11760 months
3$10,5006.25%$17660 months

When Points Make Sense

Buy points when you'll stay past break-even (typically 5–7 years), have cash without depleting reserves, and the alternative use of that cash wouldn't earn more. The effective annual return on points is roughly the rate reduction achieved. Below 20% down payment, extra cash almost always goes further as down payment to eliminate PMI.2

Points vs Larger Down Payment

Under 20% down, extra cash as down payment reduces PMI and the loan amount — double benefit. At 20%+, points become viable if you'll stay past break-even. Use our Down Payment Calculator to compare.3

Tax Deductibility

Points on a purchase are deductible in the year paid (if itemizing). Refinance points are amortized over the loan life. Only benefits you if itemized deductions exceed the standard deduction.4

How Mortgage Points Work

Mortgage discount points are prepaid interest — each point costs 1% of the loan amount and typically reduces your interest rate by 0.25%. On a $400,000 mortgage, one point costs $4,000. Whether points make financial sense depends entirely on how long you keep the loan. If one point saves you $65 per month, the break-even period is $4,000 ÷ $65 = 61 months, or just over 5 years. If you plan to stay in the home for 10 years, you save $65 × 120 − $4,000 = $3,800 net. If you sell or refinance within 3 years, you lose money on the points. This calculator reveals exact break-even timelines for your specific loan parameters.

Points vs. Larger Down Payment

StrategyUpfront CostMonthly PaymentTotal Interest (30 yr)Net Savings vs. Base
Base: $400K at 7.0%, no points$0$2,661$558,036
1 point ($4,000), rate → 6.75%$4,000$2,594$534,026$20,010
2 points ($8,000), rate → 6.50%$8,000$2,528$510,063$39,973
Extra $4,000 down payment instead$4,000$2,635$552,432$5,604
Extra $8,000 down payment instead$8,000$2,608$546,829$11,207

Points consistently outperform equivalent down payment increases when you hold the loan long enough. That is because points reduce the rate on the entire loan balance, while extra down payment only removes a small fraction of principal. However, the down payment approach has no break-even risk — you immediately have more equity. The best strategy often combines both: put 20% down to avoid PMI, then buy 1–2 points if you plan to stay 7+ years.

When Points Make Sense — and When They Do Not

Points generally favor buyers who plan to hold the mortgage for at least 5–7 years, have cash available beyond their down payment and closing costs, and are financing a large loan where even small rate reductions create meaningful monthly savings. Points typically hurt buyers who might sell or refinance within 3–4 years, are stretching to afford the down payment, or are taking adjustable-rate mortgages (since the fixed-rate benefit disappears at adjustment). Additionally, in a declining rate environment, points are risky because you may refinance soon and lose the prepaid benefit. In a rising or stable rate environment, locking in a lower rate with points can be one of the best returns available on cash — effectively earning 10–15% annualized if you hold past break-even.

Points, APR, and True Cost Comparison

The Annual Percentage Rate (APR) incorporates points into the effective interest rate, which is why a loan with points shows a different APR than the stated rate. When comparing mortgage offers, APR provides the apples-to-apples comparison — but only if you hold the loan to term. A 6.75% rate with 1 point might have a 6.87% APR, while a 7.0% rate with no points has a 7.0% APR. The points loan is cheaper overall, but only after the break-even period. Always ask lenders for side-by-side quotes with and without points. The Mortgage Calculator helps you see the full amortization impact of different rate scenarios.

Tax Deductibility of Points

Mortgage discount points are generally tax-deductible as prepaid interest. For a home purchase, points paid at closing can typically be deducted in full in the year they are paid, provided the points are customary for your area and the loan is secured by your primary residence. For refinancing, points must be amortized over the life of the loan — deducting 1/30th per year on a 30-year mortgage. However, with the standard deduction now at $14,600 for single filers and $29,200 for married filing jointly, many homeowners do not itemize, which eliminates the point deduction benefit. Factor this into your break-even analysis: if you do not itemize, the full cost of points comes from after-tax dollars, extending your break-even by roughly 20–30% depending on your tax bracket.5

Refinancing and the Points Decision

When refinancing, the points calculation changes because you already have a mortgage and can compare your current payment to the refinanced payment with and without points. The key question shifts from "should I buy points?" to "will I keep this refinanced loan long enough to recover the points cost?" Since the average homeowner refinances every 4–5 years, points on a refinance carry more risk than on a purchase mortgage. Run multiple scenarios: refinance with no points and invest the savings, refinance with 1 point, and keep your current mortgage. Use this calculator alongside our Refinance Calculator to find the optimal strategy for your situation.

Negotiating Points with Lenders

Points are negotiable. Lenders set their own pricing, so the rate reduction per point varies — one lender may offer 0.25% per point while another offers 0.20%. Always request a loan estimate with 0, 1, and 2 points from at least three lenders. Some lenders offer fractional points (0.5 or 0.75), providing more granular choices. In competitive lending markets, lenders may offer promotional rate reductions that effectively give you partial points for free. Also consider lender credits — negative points where the lender pays some of your closing costs in exchange for a slightly higher rate. This is the opposite of buying points and makes sense when you plan to refinance or sell within a few years.

Points Break-Even by Loan Size

Loan Amount1 Point CostMonthly SavingsBreak-Even10-Year Net Savings
$200,000$2,000$3263 months$1,840
$300,000$3,000$4961 months$2,880
$400,000$4,000$6562 months$3,800
$500,000$5,000$8162 months$4,720
$750,000$7,500$12261 months$7,140

Break-even periods remain remarkably consistent across loan sizes — typically 60–65 months for one point with a 0.25% rate reduction. This means the decision is less about loan size and more about your expected holding period. Larger loans simply amplify both the upfront cost and the ongoing savings proportionally. For jumbo loans above conforming limits, points can be especially attractive because jumbo rates tend to be slightly higher, making the relative discount more valuable.

Opportunity Cost of Points

The cash used to buy points could alternatively be invested elsewhere. If you invest $4,000 in the stock market instead of buying one point, at a 7% average return over 10 years that grows to approximately $7,869. Compare this to the $3,800 in mortgage savings from the point over the same period. In this scenario, investing beats the point. However, the point savings are guaranteed and risk-free — a crucial distinction. For risk-averse borrowers, the guaranteed 10–15% annualized return from points (post-break-even) is hard to beat. Use our Compound Interest Calculator to model the alternative investment scenario for your specific numbers.

Points in Different Rate Environments

The value of mortgage points shifts with the broader interest rate environment. In high-rate environments (7%+), the absolute dollar savings from a 0.25% rate reduction are larger because they apply to a bigger base rate, making points more attractive. In low-rate environments (3–4%), the same 0.25% reduction yields smaller absolute savings, extending break-even periods. Rate direction also matters. If rates are falling, buying points on today's mortgage is risky because refinancing at a lower rate eliminates the benefit of your upfront payment. If rates are rising or stable, points lock in savings that become more valuable over time as prevailing rates climb higher above your locked-in rate. Check current rate trends before committing to points.

What is a mortgage point?
One point costs 1% of the loan and reduces the rate by ~0.25%. On $350K, one point is $3,500 and saves ~$58/month. Break-even is about 60 months.
How do I calculate break-even?
Point cost ÷ monthly savings. $3,500 ÷ $58 = 60 months. Stay longer than that and points pay off.
Points or larger down payment?
Under 20% down, extra cash as down payment is better (eliminates PMI). At 20%+, points make sense if staying past break-even.
Are points tax deductible?
On purchase: deductible in year paid if you itemize. On refinance: amortized over loan life.
What are negative points (lender credits)?
The lender pays you a credit toward closing costs for a higher rate. Best for short-term stays — you avoid upfront costs at the expense of a slightly higher rate you won't pay for long.

How to Use This Calculator

  1. Enter your loan amount — Input the mortgage principal. Each discount point costs 1% of the loan amount — on a $400,000 mortgage, one point costs $4,000.
  2. Set the base interest rate and rate reduction per point — Enter the rate without points and how much each point reduces it. Typically, one point lowers the rate by 0.25%, though this varies by lender and market conditions.
  3. Specify how long you plan to stay in the home — This is the most critical input. Points are upfront costs that pay off over time through lower monthly payments. The longer you stay, the more you save.
  4. Review the break-even timeline and total savings — The calculator shows how many months of lower payments it takes to recoup the point cost, and your total savings if you stay for the full loan term or your planned duration.

Tips and Best Practices

The break-even on mortgage points is typically 4–7 years. If one point costs $4,000 and saves $60/month, break-even is 67 months (~5.5 years). If you sell or refinance before that, you lose money on the points. If you stay 15+ years, the savings compound significantly. Know your likely tenure before buying points.

Mortgage points are tax-deductible in the year they're paid. On a purchase mortgage, points are fully deductible in the year of closing. On a refinance, they're amortized over the loan term. This tax benefit improves the effective return on buying points. Check your tax situation with our Tax Bracket Calculator.

Negative points (lender credits) do the opposite — higher rate, lower closing costs. If you plan to refinance in 2–3 years or are cash-constrained at closing, accepting a higher rate in exchange for lender credits toward closing costs can make sense. You're trading long-term cost for short-term savings.

Compare the effective interest rate after accounting for points. A 6.5% rate with 1 point may be better than 6.75% with 0 points over 30 years, but worse over 5 years. Always evaluate total cost over your planned holding period, not just the rate itself. Use our Mortgage Calculator to model both scenarios.

See also: Mortgage Calculator · Refinance Calculator · Tax Bracket Calculator · Home Affordability Calculator

📚 Sources & References
  1. [1] CFPB. "What are discount points?" CFPB. CFPB.gov
  2. [2] Freddie Mac. "Understanding Points." FreddieMac.com. FreddieMac.com
  3. [3] IRS. "Topic 504: Home Mortgage Points." IRS.gov. IRS.gov
  4. [4] Fannie Mae. "Selling Guide." FannieMae.com. FannieMae.com
Editorial Standards — Every calculator is built from peer-reviewed formulas and official data sources, editorially reviewed for accuracy, and updated regularly. Read our full methodology · About the author