Discount Points Explained: When Paying for a Lower Rate Actually Pays Off

"Should I buy points?" is one of the most common questions a Loan Officer hears, and it gets asked with almost no context about what the person is actually deciding. Points are not a universal good deal or a universal waste of money. They are a bet on how long you will keep the loan, and it is a bet worth actually running the numbers on before you make it.

What a Discount Point Actually Is

One discount point typically costs 1% of your loan amount, paid upfront at closing, and in exchange your lender lowers your interest rate for the life of the loan, commonly by around 0.25% per point, though the exact reduction shifts with market pricing and the lender.

On a $400,000 loan, one point would cost roughly $4,000. That is real cash out of your closing funds, not something rolled invisibly into your payment.

The Break-Even Math

This is the calculation that actually answers "is it worth it," and it is simpler than people expect.

Break-even period = cost of points divided by monthly payment savings

Say paying $4,000 for a point drops your payment by $133 a month. Divide $4,000 by $133 and you get roughly 30 months, about two and a half years. If you keep the loan longer than that, the point saved you money. If you sell or refinance before that point, it cost you money.

That is the entire decision, right there. Everything else is just context for how confident you are about that timeline.

When Buying Points Tends to Make Sense

You are confident you will stay in the home well past your break-even point, ideally with real margin, not just barely past it.

You have the cash to pay points without draining your reserves or closing cushion.

Rates are elevated and you expect to hold this loan a long time rather than refinance soon.

You are not planning a job change, growing family move, or other likely relocation in the next few years.

When Buying Points Tends to Backfire

You are not sure how long you will stay in the home.

You are already stretching to cover your down payment and closing costs.

You are buying in a rate environment where you expect to refinance within a couple of years anyway.

Someone else, a seller or builder, is offering you a credit, in which case a temporary buydown often delivers more value in the years that matter most.

A Word on "It's Tax Deductible"

You may hear that points are tax deductible, and in many cases that is true. That is a real benefit, but it is not a reason by itself to buy points if the break-even math does not work for your actual timeline. A partial deduction does not undo years of a loan you did not keep long enough to benefit from. Talk to a tax professional about your specific situation, this is not tax advice.

The Question to Actually Ask Yourself

Not "can I afford the points." Ask "how confident am I that I will keep this exact loan past the break-even date." If the honest answer is "pretty confident," points can be a smart use of cash. If the honest answer is "not sure," that uncertainty is worth more than the rate reduction.

As a Mortgage Broker, Quazel can run your specific break-even number across multiple lenders, since the cost-to-rate-reduction ratio on points is not identical everywhere, and show you the real numbers before you decide.

Expect to close one week early.

Frequently Asked Questions

How much does one mortgage point cost?

One discount point typically costs 1% of your loan amount and reduces your interest rate by roughly 0.25%, though the exact reduction varies by lender and current market pricing.

How do I know if buying points is worth it?

Divide the cost of the points by your monthly payment savings to find your break-even period in months. If you plan to keep the loan longer than that period, points are generally worth it.

Are discount points tax deductible?

In many cases, yes, but this depends on your specific tax situation. This is not tax advice, so talk with a tax professional before assuming a deduction changes your decision.

Is it better to buy points or take a lender credit for a lower rate?

It depends on your plans. Points make more sense if you are confident you will keep the loan long term. A lender credit or temporary buydown can make more sense if you expect to refinance or move sooner.