Should You Buy Mortgage Points? The Break-Even Math

When you get a rate quote, you'll often see an option to pay for mortgage points — a fee at closing in exchange for a lower interest rate. Some buyers assume buying points is always the smart move. Others ignore them completely. Both can be a mistake, because whether you should buy points comes down to a single number: your break-even point.

Here's the trade in plain terms: you pay money today, and your lender lowers your rate for the life of the loan, which lowers your payment. The question is never whether points lower your rate — they do. It's whether you'll keep the loan long enough for the smaller payments to outweigh what you paid upfront.

What is a mortgage point, exactly?

One discount point equals 1% of your loan amount, paid at closing, and it buys down your interest rate. On a $300,000 loan, one point costs $3,000. Each point typically lowers your rate by somewhere around a quarter of a percent — but that ratio isn't fixed. It moves daily with the market and varies by lender, so the only number that matters is the one on your actual quote.

Two quick clarifications, because the wording trips people up. Discount points are optional and lower your rate. Origination points are a lender fee for processing the loan — different thing. And a lender credit is the mirror image of a point: you accept a slightly higher rate in exchange for cash toward your closing costs. Same dial, opposite direction.

How do you find your break-even point?

This is the whole decision, and the math is simpler than it sounds. Say you're financing $300,000 on a 30-year fixed and your quote comes in around 6.75%. Paying one point — $3,000 — brings it to roughly 6.50%. In this example, that drops your principal-and-interest payment from about $1,946 to about $1,896, a savings of close to $50 a month.

Now divide the cost by the savings: $3,000 ÷ $50 ≈ 60 months. So you'd break even in about five years. Keep the loan past five years and that point puts money back in your pocket — roughly $50 every month after that. Sell the house or refinance before five years, and you paid $3,000 to save less than that. You came out behind.

When does buying points make sense?

Points tend to pay off when you're confident you'll stay put. Specifically:

• You plan to keep the home and the loan well past break-even — often five-plus years, with no move or refinance on the horizon.
• You have cash to spare beyond your down payment, closing costs, and emergency reserves. Points should never drain the cushion you'd want after closing.
• Rates are elevated and you don't expect to refinance soon, so the lower rate is one you'll actually live with for years.
• A seller credit is covering costs and you have room to direct some of it toward buying down the rate.

When should you skip points?

Just as often, the smarter move is to keep your cash:

• You might move or refinance within a few years — you'd likely sell or replace the loan before you ever reach break-even.
• The money would do more as a bigger down payment, which shrinks your loan balance and can help you drop PMI sooner.
• Your reserves are thin. Spending $3,000 to save $50 a month is a poor trade if it leaves you stretched the day you get the keys.
• You expect rates to ease and plan to refinance when they do.

The bottom line

Mortgage points aren't a gimmick or a no-brainer — they're a tool, and the answer is math, not a gut feeling. Run your real break-even, then be honest about how long you'll truly keep the loan. If it's "a long time," points can be a quiet win. If it's "I'm not sure," your cash is usually better off staying liquid. Either way, see the numbers both ways before you decide.