Mortgage Points for US Homebuyers: How Discount Points Work, Break-Even Math, Lender Credits, and Taxes

When you get a mortgage quote, the lender often shows you more than one rate. A lower rate usually comes with a price tag called mortgage points, also known as discount points. You pay extra cash at closing, and in exchange the lender trims your interest rate for the life of the loan.

Points can save tens of thousands of dollars on a loan you keep for decades. They can also be money thrown away if you sell or refinance a few years later. This guide explains how mortgage points work for US borrowers, how to run the break-even math, how lender credits fit in, what the IRS says about deducting points, and a simple checklist for deciding.

What mortgage points are

One discount point costs 1% of your loan amount. On a $400,000 mortgage, one point is $4,000; two points are $8,000. Lenders also sell fractions, such as half a point or 0.375 points.

What a point buys you isn't fixed. Each lender sets its own pricing, and the rate drop per point changes with the market. A common rule of thumb is that one point lowers the rate by roughly 0.25 percentage point, but you may see more or less on a real quote. That's why you should always compare actual quotes rather than relying on the rule of thumb.

Points are paid upfront at closing. On your Loan Estimate, they appear in Section A, "Origination Charges," as a percentage of the loan amount labeled "Points." The same line shows up again on your Closing Disclosure a few days before you close.

Discount points vs origination points

Not every "point" lowers your rate. It helps to separate two ideas:

• Discount points are prepaid interest. You pay them specifically to buy down the interest rate.
• Origination fees or origination points are what the lender charges for processing and underwriting the loan. They don't reduce your rate by themselves.

When a lender advertises an unusually low rate, check whether it assumes you'll pay one or two discount points. Mortgage ads and online rate tables often show the points required in the fine print, and two quotes are only comparable when you line up both the rate and the points.

Example: break-even math on a $400,000 loan

Let's use round, illustrative numbers for a 30-year fixed mortgage of $400,000. Principal and interest only, not including taxes, insurance, or PMI:

• No points at 6.75%: about $2,594 a month.
• One point ($4,000) at 6.50%: about $2,528 a month, saving roughly $66 a month.
• Two points ($8,000) at 6.25%: about $2,463 a month, saving roughly $132 a month.

The break-even point is the cost of the points divided by the monthly savings:

• One point: $4,000 ÷ $66 ≈ 61 months, or just over five years.
• Two points: $8,000 ÷ $132 ≈ 61 months as well.

If you keep the loan longer than that, you come out ahead. Over a full 30 years, the one-point option saves roughly $19,800 after subtracting the upfront cost, and the two-point option saves roughly $39,300. But if you sell or refinance after three years, you'd have paid $4,000 or $8,000 for savings you never fully recovered.

Two refinements make the math more honest. First, the money you spend on points could otherwise sit in a high-yield savings account or go toward a bigger down payment, so the true break-even is a bit later than the simple division suggests. Second, if you itemize deductions, the tax treatment of points (covered below) can shorten it slightly.

When buying points usually makes sense

• You plan to stay put. If you expect to keep the home and the loan well past the break-even point, often seven to ten years or more, points tend to pay off.
• Rates are unlikely to fall enough for you to refinance soon. A refinance resets the clock, and any points you paid on the old loan stop working for you.
• You have extra cash after your down payment, closing costs, and emergency fund. Points should come from true surplus, not from the cushion you'll need for repairs or a job loss.
• A seller is paying for them. In a slower market, a seller concession can be used to buy down your rate, so the points cost you nothing out of pocket. Check the limits your loan program places on seller contributions.

When to skip points

• You may move within a few years because of a job, a growing family, or a starter home you plan to outgrow.
• You expect to refinance if rates drop. Many borrowers who bought points when rates were high refinanced before reaching break-even.
• Paying points would drain savings or force you to put less down and pay PMI longer.
• You're carrying high-interest debt. Paying off a 22% credit card balance beats shaving a quarter point off a mortgage.

Lender credits: points in reverse

Lenders can also go the other direction. With lender credits, sometimes called negative points, you accept a slightly higher rate and the lender gives you money toward closing costs. On a Loan Estimate, lender credits appear in Section J as a negative number.

Lender credits can make sense if cash is tight at closing or you're fairly sure you'll sell or refinance within a few years. You pay more interest each month, but you keep more cash in hand today. The same break-even math applies in reverse: divide the credit by the extra monthly cost to see how long the trade stays in your favor.

Are mortgage points tax-deductible?

Because discount points are treated as prepaid interest, they can be deductible, but only if you itemize instead of taking the standard deduction. Many households with moderate mortgages find the standard deduction is larger, which means points provide no tax benefit at all.

According to IRS Publication 936, points paid to buy or build your main home can generally be deducted in full in the year you pay them if certain tests are met, such as the points being computed as a percentage of the loan, being a normal practice in your area, and being clearly shown on your settlement statement. Points paid on a refinance are usually deducted gradually over the life of the loan instead. If you refinance again or pay off the loan early, any remaining undeducted points can generally be deducted in that year. The mortgage interest deduction also has a cap on qualifying acquisition debt, currently $750,000 for most loans taken out after December 15, 2017.

Tax rules have exceptions and can change, so confirm your situation with IRS Publication 936 or a tax professional before counting on a deduction.

Points vs a temporary buydown

Don't confuse permanent discount points with a temporary buydown, such as a 2-1 buydown. With a temporary buydown, someone (often the seller or builder) funds an account that lowers your payment for the first year or two. After that, your payment rises to the full note rate. Permanent points lower the rate for the entire life of the loan. A temporary buydown can ease the first years, but make sure you can afford the full payment from day one.

How to compare offers: a step-by-step checklist

1. Request Loan Estimates from at least three lenders on the same day, for the same loan type, term, and lock period. Rates move daily, so quotes from different days aren't apples to apples.
2. Ask each lender for a no-points option and a one-point option. This shows you how much rate each lender gives per point.
3. Compare Section A and the interest rate together, not just the advertised rate.
4. Calculate break-even for each option: cost of points ÷ monthly principal-and-interest savings.
5. Be honest about your timeline. How likely are you to move or refinance before break-even?
6. Look at the APR on the Loan Estimate. It folds points and fees into one number, which helps when comparing over the full loan term.
7. Lock your rate once you've chosen, and make sure the lock confirmation lists the same points you agreed to.

Common mistakes to avoid

• Comparing rates without comparing points. A lower rate with two points isn't a better deal than a slightly higher rate with none unless the math says so.
• Paying points on an adjustable-rate mortgage without checking how long the fixed period lasts. The discount may only matter for the first few years.
• Ignoring the refinance risk. If rates fall a full point, you may refinance and lose the value of points you just bought.
• Assuming points are always deductible. If you take the standard deduction, there's no tax benefit.
• Using emergency savings to buy points. A lower rate won't help if a surprise expense ends up on a credit card.

FAQ

How much does one mortgage point lower my rate? It depends on the lender and the day. A rough rule of thumb is about 0.25 percentage point per point, but real quotes vary, so ask lenders for side-by-side options.

Can I buy points on a refinance? Yes. The same break-even logic applies, but points on a refinance are generally deducted over the life of the loan rather than all at once if you itemize.

Can I roll points into my loan? Some lenders let you finance closing costs, including points, by increasing the loan amount. That means you pay interest on the points, which pushes break-even later.

Are points worth it with FHA or VA loans? Discount points are available on many FHA, VA, and conventional loans. The decision is the same: compare the cost to the monthly savings and your expected time in the loan.

Do points affect my monthly escrow? No. Points change the interest rate, which changes principal and interest. Property taxes and homeowners insurance in escrow are separate.

The bottom line

Mortgage points are a straightforward trade: cash now for a lower rate later. They pay off when you keep the loan well past the break-even point, have cash to spare after your down payment and emergency fund, and don't expect to refinance soon. If you're likely to move, need your cash, or think rates may drop, a no-points loan or even lender credits may be smarter. Get same-day Loan Estimates, line up rate and points side by side, and do the simple division before you sign.

Disclaimer: This article is for general educational purposes only and isn't financial, legal, or tax advice. Example figures are illustrative, not rate quotes. Mortgage pricing, fees, and eligibility vary by lender, loan program, and state; tax treatment depends on your situation. Confirm details with your lender and a tax professional.