Mortgage points: the math nobody runs before paying them

Points and credits: the same dial, turned two ways

Every mortgage quote sits on a slider. Slide one way and you pay cash at closing to buy a lower rate — those are discount points. Slide the other way and you accept a higher rate in exchange for the lender handing you cash toward closing costs — those are lender credits, sometimes called negative points. Same mechanism, opposite directions. One point equals 1% of the loan amount: on a $400,000 loan, one point is $4,000.

This matters because loan officers often present one spot on the slider as if it were the price. It isn't. Any quote you see can be restructured with more points or more credit, and you should always ask to see at least two versions before comparing lenders. A lender quoting a lower rate with two points baked in isn't cheaper than one quoting a slightly higher rate at zero points — it's just a different position on the same dial.

Discount points vs. origination points

Don't confuse the two, because only one buys you anything.

• Discount points are optional prepaid interest. Each point typically lowers your rate by roughly 0.125% to 0.25%, though the exact trade varies by lender, loan type, and market conditions. You choose whether to pay them.
• Origination points are simply the lender's fee dressed up in point language — 1 point of origination is a 1% fee for making the loan. It buys you no rate reduction. It's compensation, not a buy-down.

When a quote says "1 point," ask which kind. An origination point is negotiable lender revenue; a discount point is a trade you can evaluate with arithmetic.

The break-even math, worked out

Here's the only calculation that matters. Say you're borrowing $400,000 on a 30-year fixed loan, and paying one point ($4,000) drops your rate by 0.25% — say from 7.00% to 6.75%. (Illustrative numbers for the math, not a rate quote.)

• Payment at 7.00%: about $2,661/month principal and interest
• Payment at 6.75%: about $2,594/month
• Monthly savings: roughly $67

Break-even = cost of the point ÷ monthly savings = $4,000 ÷ $67 ≈ 60 months. You need to keep this exact loan for five years before the point pays for itself. Every month after year five, you're ahead; sell or refinance before then and you burned cash.

Now stress-test the assumption. The average mortgage doesn't survive 30 years — people move, rates drop, life happens. Your honest expected hold period, not the loan term, is the input that decides whether points make sense.

When paying points is smart

You'll genuinely hold the loan a long time

Forever home, rate you don't expect to beat, no plans to pull cash out. If your realistic hold is 8–10+ years, points usually win.

You have surplus cash and want guaranteed return

In the example above, $4,000 buying $67/month is roughly a 20% annual cash-on-cash yield once you're past break-even. That's hard to find elsewhere — but only if you stay put.

You're buying an investment property with strong cash flow goals

Points on investor loans are often a better value than on owner-occupied loans, because non-QM and DSCR loan pricing frequently offers bigger rate reductions per point. A lower rate also directly improves your DSCR ratio, which can unlock better leverage. If a point moves your coverage ratio from 0.98 to 1.05, it just bought you loan approval, not just monthly savings.

When paying points is dumb

• You might refinance soon. If rates could fall or you're planning a cash-out refi within a couple of years, points are money set on fire. The old loan's buy-down dies with the old loan.
• You might sell inside the break-even window. Starter home, job that relocates people, growing family — be honest.
• Your cash is thin. Draining reserves to buy a rate down is backwards. Lenders want to see reserves after closing, and an emergency fund beats $67/month.
• The point buys too little. If a full point only drops your rate 0.125%, the break-even can stretch past 8–10 years. Always compute it; never assume.

Negative points: getting paid to close

Run the dial the other way and lender credits become a legitimate tool for cash-poor closings. Accept a rate 0.25% higher and the lender might credit you $4,000 toward closing costs. Your payment is ~$67/month higher, but you kept $4,000 in your pocket on day one.

This is smart in the mirror-image scenarios: short expected hold, likely refinance, or when the alternative is delaying the purchase to save up closing costs. Plenty of first-time buyers and BRRRR investors deliberately take credits, knowing the loan is temporary. Just pair the decision with your rate lock strategy — the points/credits trade is priced at lock, and it moves with the market until then.

The tax wrinkle

Points are prepaid interest, so they can be deductible — but the treatment differs. On a purchase of your primary home, discount points are generally deductible in the year paid if you meet IRS conditions. On a refinance, points typically must be amortized over the life of the loan — a much weaker benefit. On investment properties, points are generally amortized as a business expense over the loan term. Origination fees framed as "points" don't always qualify. The rules have real edges, so run your specific situation past a CPA before you count the deduction in your break-even math.

How to decide in five minutes

1. Get the same loan quoted at zero points, one point, and with a lender credit.
2. Compute break-even months for each step: cost ÷ monthly savings.
3. Compare against your honest expected hold — not the loan term.
4. Check your post-closing reserves survive the point cost.
5. If the break-even is shorter than your hold with room to spare, buy the points. If it's close, keep the cash. Cash is optionality; points are a bet.

Frequently asked questions