Mortgage Points Calculator
This mortgage points calculator shows what discount points cost and how long they take to pay for themselves at your rate.
By Onias Derilus, Mortgage Capital · NMLS# 1859012 · Last Updated: June 2026
One point equals 1% of the loan amount. How much a point lowers the rate varies by lender and day — ask for the actual buydown grid rather than assuming a quarter point. Estimate only.
A discount point is 1% of the loan paid up front to lower the rate. Whether it is worth buying comes down to one question: will you hold the loan past the break-even month.
The amount of rate a point buys is not fixed. It moves with the market and differs between lenders, so the only reliable input is the buydown grid on your actual quote.
These figures are estimates. For neutral, official guidance on mortgage costs and what lenders can charge, see the CFPB's Owning a Home guide.
How to Use This Calculator
- 1
Enter the loan amount and the rate you are quoted without points.
- 2
Enter how many points you are considering.
- 3
Enter the rate reduction those points actually buy, from the lender\u2019s quote.
- 4
Read the break-even month, then compare it against how long you realistically expect to keep the loan.
The Formula & Assumptions
Cost = loan × points%
Savings = payment at base
rate − payment at
reduced rate
Break-even = cost ÷
monthly savings
Break-even ignores what the same cash would earn elsewhere and any tax treatment of prepaid interest. Both can move the decision at the margin, and points may be deductible in the year paid on a purchase — worth asking a tax professional about.
If you expect to refinance or sell before break-even, points lose money. Given how often Florida borrowers refinance after a rate move, a break-even beyond about five years deserves real scrutiny.
A seller-paid or builder-paid buydown changes the calculation entirely, because someone else covers the cost. In that case the question is whether the concession is better spent on points or on price.
Frequently Asked Questions
How much does one point lower the rate?
Often around a quarter point, but it varies daily and by lender, and the relationship is not linear — the second point usually buys less than the first. Always price it from the lender\u2019s actual buydown grid.
When are points worth buying?
When you will hold the loan comfortably past break-even, typically meaning you plan to stay and not refinance for well beyond that month. Short holds and likely refinances argue against paying points.
Are discount points tax deductible?
Points paid to lower the rate on a purchase of a primary residence are often deductible in the year paid, and points on a refinance are usually amortized over the loan term. Rules have conditions, so confirm with a tax professional.
What is the difference between discount points and origination points?
Discount points buy down your rate. Origination points are a lender fee for making the loan and buy you nothing in rate. Read the Loan Estimate carefully — they appear in different sections.
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Rates are illustrative only. APR and payments vary by credit score, loan amount, and market conditions. Subject to credit approval. Not a commitment to lend. NMLS# 1859012. Equal Housing Lender.
It calculates what discount points cost, how much they lower your payment, and how long you must keep the loan before they pay for themselves.
Mortgage Points Calculator in Florida
Florida buyers move and refinance more often than the national average, which shortens the holding period points need to beat. Seasonal owners and investors in particular should check the break-even against how long they realistically keep a property, not against the full thirty-year term.
How the Mortgage Points Calculator Works
The calculator prices each point at one percent of the loan, then compares the monthly payment at both rates. Dividing the up-front cost by the monthly saving gives the break-even month.
The Mortgage Points Formula, Explained
Break-even months = point cost / monthly payment saving
One point costs one percent of the loan amount and typically buys about a quarter of a percentage point off the rate. The exact trade varies by lender and by day.
Break-even is the only number that matters. If you sell or refinance before it arrives, the points were a loss, however good the lower rate looked at closing.
The Complete Mortgage Points Calculator Guide
Buying points is a bet that you will keep the loan long enough to collect. The lender takes cash now and gives you a lower payment for as long as the loan lasts.
The arithmetic is simple and the judgement is not. A break-even of fifty-two months is excellent if you stay a decade and worthless if you refinance in year three.
Compare the points against the alternative uses for the same cash. A larger down payment that drops you under 80% LTV can beat points outright, because it removes mortgage insurance as well as lowering the balance.
Mortgage Points Calculator FAQ
How much does one point lower my rate?
Usually about 0.25%, though it varies by lender and market conditions. Ask for the rate both with and without points and compare the two payments directly.
Can the seller pay my points?
Often yes, within the seller-concession limits for your loan program. A seller-paid buydown is one of the more common concessions in a slower market.