Mortgage Points Explained — When Buying Down Your Rate Actually Saves Money

What mortgage points actually are

Mortgage points are just prepaid interest \u2014 there's no magic to it. You're paying a lump sum at closing to buy a lower rate for the entire life of the loan. One "point" equals 1% of your loan amount. Two points cost 2%. You can buy fractional points too — half a point, a quarter of a point.

It feels abstract until you put real numbers on it. Here's the breakdown for a $350,000 30-year fixed mortgage at the current rate environment:

$57 per month doesn't sound life-changing. But over 30 years, that one point saves $20,520 in interest on a $3,500 investment. That's a 5.9x return. Of course, very few people keep a mortgage for the full 30 years — which is why the break-even calculation matters so much.

The break-even calculation you need to run

The break-even math is dead simple. Divide the cost of the points by the monthly savings:

Break-even = Point cost / Monthly savings

For our example: $3,500 / $58 = 62 months, or about 5.1 years.

If you stay in the home (and keep the mortgage) longer than 5 years, the points saved you money. Every month beyond the break-even point is pure savings. If you sell, refinance, or pay off the loan before reaching break-even, you lost money on the points.

See the pattern? Points are a bet on staying put. If your job is stable, you love the neighborhood, and you don't see a move in the next 7+ years, the numbers work in your favor.

When buying points makes the most sense

You're buying your "forever home." If you expect to be in this house for 10+ years, points almost always make sense. The longer you hold, the bigger the cumulative savings. A 10-year hold on 2 points nets you $6,920 in savings on a $350,000 loan.

You have excess closing funds. If your down payment, closing costs, and reserve fund are covered and you still have cash available, points are one of the best uses for the surplus. The return (5-6% annualized, risk-free) is hard to beat with any comparable investment.

Rates are elevated and you expect to hold. In a high-rate environment like 2026 (30-year fixed averaging 6.0-6.5% per Freddie Mac's PMMS), buying points makes mathematical sense if you won't be refinancing soon. Conversely, if rates are expected to drop and you plan to refinance in 2-3 years, paying for points now is burning money.

When to skip points entirely

You might move within 5 years. Job changes, growing families, relocations — if there's a reasonable chance you'll sell or move before the break-even point, points are a loss.

You'd rather invest the cash. If you can earn more than the effective return of points by investing elsewhere, the opportunity cost doesn't add up. That said, points offer a guaranteed, risk-free return — there's no comparable guaranteed investment at 5-6% annual return in today's market.

You need the cash for a bigger down payment. If you're below 20% down and paying PMI ($100-$300/month on most loans), putting your cash toward a larger down payment to eliminate PMI usually saves more than buying points. PMI elimination is the higher-priority use of those dollars. The overpayment strategy guide covers this trade-off in depth.

Points on a refinance: different calculation

Everything I covered above applies to purchase mortgages. For refinances, the math works the same way, but there's an added wrinkle: if you've already been paying your mortgage for several years, the remaining term is shorter, which means fewer months to recoup the points cost.

Example: if you're refinancing a loan with 22 years left and buying one point with a 5-year break-even, you have 17 years of net savings ahead. That's still a strong deal. But if the remaining term is only 12 years and break-even is 6 years, the net savings window shrinks to 6 years — less compelling.

The refinance vs overpay guide walks through when refinancing makes sense in the current rate environment.

The tax angle

Points paid on a primary residence purchase are generally deductible as prepaid interest in the year of purchase. For a $350,000 loan, one point ($3,500) is deductible in full — reducing your taxable income and effectively lowering the net cost of the points. At a 22% marginal tax rate, the true cost of that point drops from $3,500 to roughly $2,730 after the tax benefit.

This assumes you itemize deductions. With the 2026 standard deduction at $16,100 (single) or $32,200 (MFJ), many homeowners don't itemize. If you take the standard deduction, there's no direct tax benefit from points. The CFPB's guide to discount points covers the full regulatory picture.

For visualizing how points affect your overall interest costs, the mortgage interest savings calculator can model the difference between rate scenarios over your expected holding period.