Mortgage points are prepaid interest: you hand the lender extra cash at closing, and in exchange they lower your interest rate for the life of the loan. One point costs 1% of the loan amount - $4,000 on a $400,000 loan - and the going convention is that it buys roughly a quarter of a percentage point off your rate.
Whether that trade is smart comes down to one number: the break-even point, the month your accumulated monthly savings finally repay the upfront cost. Stay in the loan past it and points were a good buy. Leave before it - sell or refinance - and you paid for years of discount you never used.
This guide separates the two kinds of points, works the break-even math on a real example, and lists the situations where points genuinely pay.
Two things called “points” - only one is a discount
Loan paperwork uses “points” for two different charges, and confusing them costs real money:
- Discount points are the optional purchase this guide is about: prepaid interest that buys a lower rate. You choose whether to pay them.
- Origination points are simply the lender’s fee for making the loan, quoted in the same 1%-of-loan units. They buy you nothing - no rate reduction - and they are a cost to compare between lenders, not an investment to evaluate.
When a quote mentions points, ask which kind. Both show up in your closing paperwork alongside everything else due at signing - closing costs explained maps the full list.
What one point actually buys
Two facts, from the two institutions that would know:
- The cost is standardized. One point equals 1% of the loan amount, per the CFPB (Consumer Financial Protection Bureau). Half points and fractions work proportionally.
- The rate reduction is not. Freddie Mac’s worked examples use about 0.25 percentage points of reduction per point, and that is the number you will hear quoted. But the CFPB is blunt: the actual reduction depends on the lender, the loan type, and the mortgage market at that moment. Sometimes a point buys more than a quarter, sometimes less.
The practical consequence: never assume the convention. Ask each lender for the same loan quoted at zero points and at one point, and compute what the point actually buys you in their pricing. That real spread - not the folklore 0.25 - is what the break-even math below should run on.
The break-even math, worked in full
Say you are borrowing $400,000 on a 30-year fixed loan. The lender quotes 6.5% at zero points, or 6.25% if you pay one point - $4,000 at closing.
| 6.5%, no points | 6.25%, one point ($4,000) | |
|---|---|---|
| Monthly payment (P&I) | $2,528 | $2,463 |
| Monthly saving | - | $65 |
| Break-even | - | about 61 months (5 years) |
| Interest saved if held all 30 years | - | about $23,500 ($19,500 net of the point) |
The mechanics: the point saves $65 a month. Divide the $4,000 cost by $65 and you get 61 months - the loan must survive just over five years before the point has paid for itself. Every month after that is pure savings; every month short of it, the zero-point loan would have been cheaper.
Run this same division on your own quotes: point cost divided by monthly saving equals months to break even. The mortgage calculator gives you the payment at each rate; the rest is one division.
When points make sense - and when they don’t
Points reward one thing above all: staying put. The list sorts itself by that logic.
Points tend to pay when:
- You are confident you will keep the loan well past break-even. Settled location, long-horizon home, no itch to move. Ten years in the loan above nets you thousands.
- Rates are unlikely to give you a refinance excuse. A refinance restarts the loan and abandons the old rate - and with it, your point’s remaining value.
- You have spare cash after the down payment, closing costs, and an intact emergency fund. Points come from the same pile of closing-day cash as everything else; the affordability math comes first.
- The seller or builder is paying. Seller-paid points (a common concession in slow markets) are a discount you did not fund - take them.
Skip points when:
- You may sell or refinance within about five years. Starter home, growing family, restless career - if the loan might not outlive the break-even, the math fails by definition.
- Paying them would thin your down payment. If the same cash could instead push you past a PMI threshold or a better pricing tier, that usually beats the rate trim.
- You expect rates to fall meaningfully. If you would refinance into a lower rate in two years anyway, points bought today die with the old loan. Nobody knows rates, but if your own plan assumes a refinance, do not also buy points.
- The quoted reduction is stingy. If a point buys only 0.125 instead of 0.25, break-even stretches past ten years. Always compute it from the actual quote.
Points and your taxes
Discount points are prepaid interest, so the IRS treats them like mortgage interest. On a purchase of your main home, points are generally deductible in full in the year you pay them if you itemize and meet the IRS’s conditions - among them, that paying points is an established practice in your area, the amount is typical, and you brought enough of your own cash to closing to cover them. Points on a refinance are instead deducted gradually over the life of the loan.
The catch that trims this benefit for most people: it requires itemizing rather than taking the standard deduction, and the standard deduction is large - the 2026 tax brackets guide shows the current figures. Treat any tax saving as a bonus in the points decision, not a pillar of it.
Comparing lenders without getting played
Points are the easiest lever for making a rate look better than it is - a lender advertising a headline rate “with 1.5 points” is quoting a different product than one quoting the rate clean. Two defenses:
- Compare Loan Estimates, not ads. Every lender must issue the same standardized three-page Loan Estimate within three business days of your application, per the CFPB. Points appear right on page 1 under loan costs - same form, same place, every lender.
- Anchor on one rate. Ask each lender what it costs, in points and fees, to get the same rate. Identical rate, different totals - now the cheaper lender is visible.
Lender credits, by the way, are points in reverse: the lender covers some closing costs and charges you a higher rate for it. Same break-even logic, run backward - it favors people who will not keep the loan long.
Common mistakes when buying points
- Selling or refinancing before break-even. This is the classic loss. Take the example above: you paid $4,000 for the point, it saves $65 a month, and break-even lands around month 61. Sell or refinance at month 36 and you have collected only 36 times $65, about $2,340 of savings - so you spent $4,000 to save $2,340, a roughly $1,660 loss on a discount you gave away early. If there is any real chance you move or refinance inside five years, the point is a bet against your own plans.
- Treating the simple break-even as the whole story. Cost divided by monthly saving is the right first cut, but it ignores what the same cash would have done elsewhere. Put that $4,000 toward principal instead and it shrinks the loan and saves its own interest; leave it invested and it earns a return. Points have to beat those alternatives, not just break even against zero - which pushes the true payback a little further out than the raw division suggests.
- Buying points to stretch into a bigger house. Using a bought-down rate to squeeze the payment under your 28% cap does not make the house more affordable - it just front-loads cash to disguise a payment you are already straining to meet. Settle the price first; buy points only from money you can spare after the down payment, closing costs, and an intact emergency fund.
The bottom line
One point costs 1% of your loan and typically buys about a quarter point of rate - but only the quote in front of you is real, so compute your own break-even: point cost divided by monthly saving. Past five-ish years in the loan, points usually pay; short of that, keep the cash. Decide with your own payment numbers, and never let points muddy a lender comparison - same rate, all-in cost, side by side.
FAQ
Are points ever negotiable?
The pricing grid usually is not, but the structure is: you choose how many points to pay, in fractions if you like, and in buyer-friendly markets sellers and builders often pay points as a concession. What matters is the all-in comparison across lenders at the same rate.
Do points reduce my loan balance?
No. Points buy a lower rate, not a smaller loan. If you have spare cash and a shorter horizon, putting the same money toward a larger down payment often does more - it shrinks the balance, may improve your pricing tier, and can help you dodge PMI.
Is paying two points twice as good as one?
Not necessarily. The reduction per point often shrinks as you stack them - the second point may buy less rate than the first. Get the quote at each level and run break-even separately on the marginal point.
Should I pay points on a 15-year loan?
The same break-even math applies, but 15-year rates are already lower and the loan retires the discount sooner - see 15 vs 30-year mortgage for how the terms differ. Points generally shine brightest on long loans you will hold a long time.
Sources
- Consumer Financial Protection Bureau - discount points, lender credits, and how they work
- Freddie Mac My Home - point cost and the approximately 0.25 percentage point convention
- IRS Tax Topic 504 - deductibility rules for home mortgage points
- Consumer Financial Protection Bureau - the Loan Estimate form and three-business-day rule
- Break-even figures computed with the standard amortization formula on a $400,000, 30-year example
