Mortgage Points vs. Rate: The Break-Even Formula, the 1-Point Rule, and When Buying Wins

One discount point equals 1 percent of the loan amount, paid upfront at closing as prepaid interest in exchange for a permanently lower note rate on a fixed-rate loan. On a $300,000 loan one point costs $3,000; on a $500,000 loan the same single point costs $5,000 — the price scales with the loan, not the house. Points appear on the Loan Estimate the CFPB requires lenders to deliver, listed separately from origination charges: origination fees compensate the lender for processing the file, while points specifically purchase rate. Fractional points are common (0.5 or 1.5 points), and zero-point quotes — sometimes called par pricing — are the baseline against which every buydown should be measured.

Points differ from three lookalikes. An origination fee does not lower the rate. A rate lock fee (where charged) pays to hold a quote through closing rather than to improve it. And a temporary buydown — such as a seller-funded 2-1 structure where the rate steps up over the first two years — reduces early payments without changing the note rate permanently. When a lender says “we can get you a lower rate,” ask which mechanism is being priced: permanent points, temporary buydown, or simply a different margin day. The CFPB’s mortgage toolkit at consumerfinance.gov/consumer-tools/mortgages explains how points, rate, and APR interact on the disclosure forms, and Freddie Mac research pages document how rate dispersion makes multi-lender point quotes worth collecting.

Because points are prepaid interest on the specific loan, they do not transfer: selling the house or refinancing into a new loan strands any unrecovered point cost permanently. That single fact drives the entire decision framework below. Points are a bet on duration — you pay the full price on day one and recover it gradually through lower payments, so the holding period determines whether the bet pays. Short expected stays and likely refinances argue against points; long, stable stays argue for modeling them seriously.

Lenders and educators commonly cite a rule of thumb that one discount point buys roughly a 0.20 to 0.25 percent reduction in the note rate on a standard 30-year fixed loan. A quote of 7.00 percent with zero points might thus pair with roughly 6.75 percent for one point or 6.50 percent for two — illustrative levels, not market quotes. The rule exists because secondary-market pricing for rate moves clusters in that neighborhood for plain-vanilla conforming loans, and it is useful for instant orientation: two points on a $400,000 loan cost $8,000 and, at the midpoint of the rule, buy about a half-point of rate.

Treat the rule as a starting guess, never a commitment. The actual exchange rate — sometimes called the point elasticity — moves with the lender’s margin targets, the loan program (FHA, VA, jumbo, and ARM pricing grids each differ), credit and loan-to-value adjustments, and whether markets are volatile on the lock day. Observed offers range from roughly 0.15 percent per point on the stingy end to 0.30 percent or more when a lender is aggressive. The operational takeaway: always demand paired quotes — the same lender’s rate at zero, one, and two points on the same day — and compute break-even on those real pairs rather than on the rule-of-thumb estimate. If a lender will only quote one structure, that is itself information about how badly they want the comparison.

APR exists precisely to compress this tradeoff into one number: it amortizes upfront charges over the full term and expresses them as an annualized rate, so the with-points quote shows a lower note rate but an APR closer to — sometimes above — the zero-point APR. APR is a fair first screen across lenders, but it assumes you hold the full term, which almost nobody does. For real decisions, pair APR with the break-even horizon derived next: APR tells you the lifetime ranking if you never move, while break-even tells you the ranking given when you actually expect to move or refinance.

The break-even horizon answers one question: after how many months do cumulative payment savings repay the upfront point cost? The formula is a single division — break-even months equals upfront points cost divided by monthly principal-and-interest savings — because each month’s savings is treated as repaying the upfront outlay dollar for dollar. Stay past that month and every further payment is profit on the buydown; exit before it and the unrecovered remainder is a dead loss. Note the inputs carefully: use principal-and-interest savings only (taxes, insurance, and HOA are unaffected by points), and use the true out-of-pocket point cost net of any offsetting credits.

A refined version discounts for the time value of money: dollars paid today are worth more than dollars saved in year six, so dividing without discounting slightly flatters points. For horizons under about seven years the simple division is close enough for decisions; for longer horizons, mentally add a cushion of several months to the simple result, or ask your lender for a net-present comparison at your expected stay. Also consider the opportunity alternative: $8,000 kept invested or held as reserves has its own value, particularly for buyers whose emergency funds would be depleted by the buydown. The formula measures the loan in isolation — your judgment must weigh the cash’s next-best use outside the loan.

Take a $400,000, 30-year fixed loan as a neutral illustration with hypothetical paired quotes — not market levels. Suppose the lender offers 7.00 percent with zero points for a principal-and-interest payment of about $2,661 per month, versus 6.50 percent with two points for about $2,528 per month. (Payments follow the standard amortization formula M = P × r(1+r)^n / ((1+r)^n − 1); verify any lender’s figures in our mortgage calculator.) Two points cost 2 percent of $400,000, or $8,000 upfront. Monthly savings are roughly $2,661 − $2,528 = $133. Break-even is $8,000 ÷ $133 ≈ 60 months, or about five years.

The verdict then depends entirely on duration. A buyer confident of staying eight to ten years clears break-even with three to five years of pure savings — roughly $133 × 36–60 months, or about $4,800–$8,000 net ahead — before counting the slightly faster principal amortization that lower rates also produce. A buyer transferred or upsizing in year three recovers only about 36 × $133 ≈ $4,788 of the $8,000 and strands roughly $3,200. A buyer who refinances in year two when rates fall strands even more. Run the same division on your lender’s real pair, then stress-test it: what if you move a year early, what if you refinance, and what else could the $8,000 do — reserves, repairs, or a larger down payment tier that removes mortgage insurance (see our affordability guide)?

Points win under a recognizable profile: a long expected stay comfortably past break-even, healthy cash reserves remaining after the buydown, stable income and employment, a fixed-rate loan held for duration, and little appetite for refinancing even if rates drift lower. The classic winner is the buyer settling into a long-term home with a six-month emergency fund intact after closing — the buydown converts surplus cash into a guaranteed, tax-aware return equal to the rate reduction on the financed balance for every year held past break-even.

Points lose under the mirror profile: expected moves, job relocations, growing families likely to upsize, starter homes, adjustable-rate loans where the fixed window may end before break-even, and any refinance-prone situation such as buying while rates are elevated with plans to refinance on the next dip. Cash-constrained buyers lose twice — once on the depleted reserves and again if the horizon breaks early. As a decision rule: buy points only when your conservative holding estimate exceeds break-even by at least one to two years of margin; inside that margin, keep the cash. Borderline cases should also price the alternative uses of the same dollars — eliminating mortgage insurance via a larger down payment (see the affordability guide), funding repairs that prevent costlier damage, or preserving reserves — and pick the highest-value use first. Our full fee context lives in the closing-costs guide.

Lender credits reverse the trade: the lender contributes dollars toward your closing costs in exchange for a higher note rate. A $5,000 credit for accepting a rate roughly 0.25 percent higher follows the same rule-of-thumb pricing in reverse, and the break-even logic flips with it — divide the credit by the monthly payment increase to find how many months of higher payments consume the credit. If the credit is $5,000 and the higher rate adds $85 per month, the credit is consumed in about 59 months; leaving before then means the credit was profitable, while staying decades means the higher rate eventually costs multiples of the original credit.

Credits suit cash-constrained buyers, short expected stays, and anyone prioritizing reserves over lifetime interest — the exact situations where points fail. They also interact with the rest of the transaction: credits count within program limits on interested-party contributions, appear on the Closing Disclosure for the three-day review, and can combine with seller concessions up to the applicable caps (ask your lender for your program’s ceiling). Model the credit structure against the par and buydown structures as three explicit scenarios — higher-rate-with-credit, par, and lower-rate-with-points — in the mortgage comparison calculator, test refinance escape hatches in the refinance calculator, verify the payment against income bands in the affordability calculator, and sanity-check accelerated-payoff alternatives in the biweekly mortgage calculator. Government-program borrowers should repeat the exercise in the FHA loan calculator or VA loan calculator where upfront premiums change the cash math, and ARM shoppers in the ARM calculator. Every path is indexed from the loan tools center.