Every borrower hits the same question at some point:
“Should I pay points to buy down my rate?”
Most online answers fall into two categories:
- Vague “it depends on your situation” non-answers
- Sales pitches from lenders trying to upsell points for the higher commission
Neither one actually tells you how to decide.
The truth is, it’s a simple math problem. You don’t need an MBA — just a calculator and the right inputs. Once you know the formula, you can answer the question in 60 seconds for any scenario.
Here’s how it works.
What Discount Points Actually Are
A discount point is a fee you pay at closing in exchange for a lower interest rate on your mortgage. One point equals 1% of your loan amount.
So on a $640,000 loan, one point costs $6,400 — paid upfront, in cash, at closing.
In exchange, the lender lowers your interest rate. The amount of the reduction varies by lender and market conditions, but a common range is 0.125% to 0.375% per point.
You can usually buy partial points too — half a point, three-quarters of a point, etc.
The opposite also exists: lender credits. These are cash the lender gives YOU at closing in exchange for taking a slightly higher rate. Same math, just running in reverse.
The Break-Even Formula
Here’s the entire decision in one line:
Break-Even (in months) = Cost of Points ÷ Monthly Payment Savings
That’s it. That’s the whole calculation.
If you’ll keep the loan past the break-even point, points were a good investment. If you’ll refinance or sell before then, you lost money.
A Real Scenario
Let’s run actual numbers on a typical California purchase:
- Loan amount: $640,000
- Base rate: 6.5% with no points → monthly P&I $4,041
- Option A: Pay 1 point ($6,400) → rate drops to 6.25% → monthly P&I $3,884 → savings $157/mo
- Option B: Pay 2 points ($12,800) → rate drops to 6.0% → monthly P&I $3,837 → savings $204/mo
Now plug into the formula:
Option A break-even: $6,400 ÷ $157 = 40.8 months (about 3.4 years)
Option B break-even: $12,800 ÷ $204 = 62.7 months (about 5.2 years)
So:
- If you’ll keep this loan for at least 3.4 years, paying 1 point pays for itself
- If you’ll keep it for at least 5.2 years, paying 2 points pays for itself
- Past those points, you’re saving real money every month — for the next 25+ years if you hold the loan to term
When Points Make Sense
Points work in your favor if:
- You plan to stay in the home long-term (7+ years is the sweet spot)
- You’re confident you won’t refinance in the next few years (rates are stable or you’ve already locked at a low rate)
- You have cash to spare at closing without depleting reserves
- You’re in a high tax bracket and can deduct the points (purchase-money points are generally deductible in the year paid; refinance points get amortized over the loan term)
The longer you hold the loan past the break-even, the more powerful points become. On Option B above, holding 30 years means roughly $60,000 in extra savings beyond the break-even point.
When Points Don’t Make Sense
Skip the points if:
- You’ll likely move in less than 5 years — first-time buyers, military relocators, anyone with a known life change ahead
- You’re planning to refinance if rates drop (the points are gone once you refi)
- You need the cash for reserves, repairs, or anything else that strengthens your financial position
- Your rate is already low enough that the savings per point are small
If any of those apply, you’d be much better off keeping that $6,400 or $12,800 in your pocket and putting it toward extra principal payments, an emergency fund, or other higher-return uses.
What About Lender Credits?
The reverse strategy: take a slightly higher rate, get cash from the lender at closing.
The same formula applies — just inverted. You’re effectively borrowing at a higher rate in exchange for upfront cash. The break-even tells you how long it takes before you’ve “paid back” that credit through the higher monthly payment.
Lender credits make sense if:
- You’re tight on closing costs but comfortable with a slightly higher monthly payment
- You’ll likely refinance in the next few years — the higher rate doesn’t matter long-term if you’re not keeping it
- You’d rather preserve cash reserves than save a few dollars per month for 30 years
Most buyers should consider lender credits more seriously than they do. They’re not for everyone, but for the right scenario they’re a powerful tool.
The 60-Second Decision Process
The next time a lender offers you discount points (or lender credits), do this:
- Ask for the exact cost of the points and the resulting payment savings
- Divide cost by monthly savings — that’s your break-even in months
- Ask yourself honestly: will I keep this loan past that point?
If yes — points are a good investment.
If no — keep your cash.
If you genuinely don’t know — lean toward NOT paying points. The cost of being wrong on a “no” is small. The cost of being wrong on a “yes” is real money out the door for no benefit.
A Quick Note on Lender Pricing
Not all lenders offer the same point-to-rate exchange. One lender might give you 0.25% off per point; another might only give 0.125%. Always compare break-even calculations across lenders — a “cheap” point that only drops your rate a little might have a worse break-even than a more expensive point that drops it significantly more.
If you’re not sure what your lender is actually offering, ask for the rate sheet showing each point option side by side. Any decent loan officer can produce this in a few minutes.
The Bottom Line
Discount points are neither a scam nor a no-brainer. They’re a financial decision with a clear math answer.
The break-even formula tells you whether they make sense for your specific situation. Most buyers either pay points blindly because their lender suggested it, or skip them blindly because they sound complicated. Both of those are guessing.
If you want help running the break-even on your specific loan scenario, including a side-by-side comparison of zero points, one point, and two points — I’m happy to do that with you. Takes about ten minutes and tells you exactly what’s worth paying for.
Sometimes the answer is “pay the points.” Sometimes it’s “don’t.” Either way, you’ll know.
Garry McDonald
Loan Officer | Tried & True Home Loans
(949) 534-6686 | gmcdonald@triedandtruehomeloans.com
DRE# 01781703 | NMLS# 1922072