Mortgage Points: When Buying Down Your Rate Actually Saves Money

Paying Now to Borrow Cheaper Later

One mortgage point costs exactly 1% of the loan amount. On a $400,000 mortgage, a single point costs $4,000—paid at closing, before the borrower makes a single mortgage payment. In exchange, the lender permanently reduces the interest rate, typically by 0.125 to 0.25 percentage points per point purchased. Whether that trade makes financial sense depends on a single calculation most buyers never run: the break-even point.

Points are a form of prepaid interest. The IRS classifies mortgage discount points as prepaid interest, which may be deductible in the year paid on a home purchase (subject to the $750,000 mortgage interest deduction limit for post-2017 loans). The mechanics are transparent: the lender prices the loan at a baseline rate, then offers a rate discount for each additional point purchased. A borrower who chooses not to buy points simply accepts the baseline rate. A borrower who buys points pays more upfront in exchange for a lower rate—and lower monthly payment—for the life of the loan.

Points vs. Rate: How Lenders Price the Trade

The rate reduction per point is not uniform. It varies by lender, loan type, market conditions, and the starting rate. A rate environment with higher overall rates may offer larger per-point discounts because the present value of future interest savings is larger. In general, the industry standard ranges from 0.125% to 0.25% rate reduction per point, though some lenders quote 0.375% in competitive environments.

The break-even formula is straightforward: divide the total cost of the points by the monthly payment savings. Paying $4,000 for a $66/month reduction yields a break-even period of approximately 61 months, or just over five years. If the borrower keeps the loan for longer than 61 months, the points pay for themselves and begin generating net savings. If the loan is paid off, refinanced, or the home is sold before that date, the borrower loses money on the points.

Calculating Whether Points Are Worth It

The break-even analysis is necessary but not sufficient. Three additional factors sharpen the decision.

How Long Will You Hold the Loan?

The median tenure of a U.S. homeowner in a given property was approximately 13 years as of recent National Association of Realtors data. But mortgage payoffs happen sooner than home sales: refinancing, moving, or early payoff can all terminate the loan. Buyers who know they plan to relocate in 3–5 years should rarely purchase points—the break-even period typically exceeds their holding horizon.

Opportunity Cost of the Upfront Cash

The $4,000 spent on points is $4,000 not invested elsewhere. If that capital could be invested in an index fund earning 7% annually, the opportunity cost of points must be weighed against the monthly savings. In practice, for most buyers who are not carrying high-yield investment opportunities, the comparison favors points if the break-even period is under 5–6 years and the home tenure is expected to be long.

The Marginal Rate in Context

At higher interest rates, the absolute dollar savings from a rate reduction are larger—the break-even period shortens. At lower rates (as in 2020–2021), the dollar savings per point are smaller and break-even periods lengthen, making points less attractive.

Discount Points vs. Origination Points

Two types of "points" appear on loan estimates, and buyers frequently confuse them. Clarity matters here.

Origination points (also called origination fees) are compensation to the lender for underwriting and processing the loan. They do not reduce the interest rate. A loan estimate showing "1 origination point" and "1 discount point" is charging 2% of the loan amount in fees—but only the discount point reduces the rate. The 2010 Truth in Lending Act and subsequent CFPB regulations require lenders to clearly disclose both categories on the Loan Estimate form provided within three business days of application.

When Points Are Worth Buying

• You plan to hold the mortgage for significantly longer than the break-even period (ideally 2x or more).
• You have cash for points without depleting your emergency fund or down payment below 20% (which triggers PMI).
• You are purchasing (not refinancing), making the full upfront deduction available in the year of purchase.
• The rate environment is elevated and the lender's per-point discount is generous (0.25%+).
• You are rate-sensitive and a lower monthly payment materially improves your cash flow.

When Points Are Not Worth Buying

• You plan to sell, move, or refinance within 5 years—the break-even period likely exceeds your time horizon.
• Paying points requires reducing your down payment below 20%, adding PMI that costs more than the points save.
• You carry high-interest debt: eliminating 20% APR credit card balances delivers a better guaranteed return than paying down a 7% mortgage rate.
• The lender offers only 0.125% per point—the break-even period stretches beyond 8–10 years.

Mortgage points are not universally good or bad. They are a financial instrument with a precise payoff structure. Run the numbers with the actual figures from your loan estimate before committing.

This article is for informational purposes only and does not constitute financial advice.