🏷️ Mortgage Points Calculator

Find out whether paying for mortgage discount points to lower your interest rate is worth it, based on the upfront cost, monthly savings, break-even period, and how long you plan to keep the loan.

Break-Even Period (Months)

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Cost of Points — New Interest Rate — Monthly Savings — Net Savings Over Holding Period — Verdict —

With Points vs. Without Points

Scenario	Rate	Monthly P&I	Total Interest Over Term

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What Are Mortgage Discount Points?

Mortgage discount points are an upfront fee paid to the lender at closing in exchange for a lower interest rate over the life of the loan. One point typically costs 1% of the loan amount and reduces the interest rate by a fixed amount, commonly around 0.25%, though the exact reduction varies by lender and market conditions. Buying points is essentially prepaying interest in exchange for a lower rate — it can make sense for borrowers who plan to keep the loan long enough for the monthly savings to outweigh the upfront cost, known as the break-even point. Points are optional and different from origination fees, which cover the lender's cost of processing the loan rather than buying down the rate.

How the Break-Even Period Is Calculated

The break-even period is the number of months it takes for the accumulated monthly savings from a lower rate to equal the upfront cost of the points. It is calculated as: Break-Even Months = Cost of Points ÷ Monthly Savings, where Monthly Savings is the difference between the standard monthly payment (at the base rate) and the reduced monthly payment (at the new, lower rate), both calculated using the standard amortization formula over the full loan term. If you plan to keep the loan longer than the break-even period, buying points typically saves money overall; if you plan to sell or refinance before break-even, points usually cost more than they save.

When Buying Points Makes Financial Sense

Buying mortgage points generally makes sense when you are confident you will keep the loan well past the break-even period — for example, if you are purchasing a long-term home and do not anticipate selling or refinancing within the next several years. It also makes more sense when you have the cash available to pay for points without depleting your emergency reserves or needing to take on higher-interest debt elsewhere. Borrowers who expect to move, sell, or refinance within a few years typically should avoid paying for points, since they are unlikely to recoup the upfront cost before the loan ends.

Points vs. a Larger Down Payment

Borrowers with extra cash at closing often face a choice between buying discount points to lower their rate or putting that same money toward a larger down payment, which reduces the loan amount (and, if applicable, can help avoid or reduce PMI). A larger down payment reduces the principal on which interest accrues immediately and permanently, while points only reduce the rate on whatever amount is borrowed. Generally, if a larger down payment would eliminate PMI or bring the loan-to-value ratio below a key threshold, that often provides a better return than points; otherwise, comparing the break-even period of points against the guaranteed effect of a lower loan balance can guide the decision. Try our mortgage calculator to see how a different down payment changes your monthly payment.

Negative Points and Lender Credits

Just as borrowers can pay points to lower their rate, some lenders offer "negative points" or lender credits — accepting a slightly higher interest rate in exchange for a credit that reduces closing costs. This is the mirror image of buying points and can make sense for borrowers who are cash-constrained at closing but plan to refinance or sell relatively soon, since a higher rate matters less over a shorter holding period. The same break-even logic applies in reverse: calculate how much extra interest the higher rate costs per month and compare it to the closing cost credit received upfront.

Tax Considerations for Mortgage Points

In the United States, mortgage points paid on a loan used to buy, build, or substantially improve a primary residence may be tax-deductible in the year paid, subject to IRS rules and limits — though points on refinances are typically deducted over the life of the loan instead. Tax treatment can meaningfully affect the real break-even calculation for some borrowers, effectively shortening it. Because tax rules change and depend on individual circumstances, borrowers should consult a licensed tax professional to determine how points affect their specific tax situation rather than relying on general estimates.

Using This Calculator to Decide

This calculator compares your loan with and without points side by side: the upfront cost, the resulting interest rate, the monthly payment difference, the break-even period in months, and the net savings over however many years you plan to stay in the home. Enter your loan amount, term, base rate, number of points being considered, the rate reduction each point provides, and your expected time in the home to get a clear verdict on whether the points are likely worth it for your situation. For a broader view of your monthly payment including taxes and insurance, see our full mortgage calculator.

常见问题

How much does one mortgage point typically cost?

One point generally costs 1% of your loan amount. For a $300,000 loan, one point costs $3,000. The exact rate reduction per point varies by lender, market, and loan type, but 0.25% is a common estimate.

What if I sell or refinance before the break-even point?

If you sell or refinance before reaching the break-even month, you will have paid more for the points than you saved in reduced interest, making the points a net loss in that scenario.

Can I buy partial or fractional points?

Yes, many lenders allow fractional points (for example, 0.5 or 1.25 points), and this calculator supports decimal point values so you can model any amount your lender offers.

Are mortgage points the same as origination fees?

No. Discount points buy down your interest rate, while origination fees cover the lender's cost of processing and underwriting the loan. Both may appear on your closing disclosure but serve different purposes.

Is buying points always better than a larger down payment?

Not necessarily. A larger down payment permanently reduces your loan balance and may eliminate PMI, while points only reduce your rate. Compare both options against your specific loan-to-value ratio and cash available.

Is this calculator financial or tax advice?

No. This tool provides estimates for educational purposes only and is not financial, legal, or tax advice. Consult a licensed mortgage professional or tax advisor before deciding whether to buy points.