Mortgage Points Break-Even Calculator
Months to recoup the cost of buying down your rate.
Calculate your mortgage points break-even period. Enter upfront points cost and monthly savings to find how many months to recoup your investment.
What this tool does
This calculator models the payback period for mortgage rate buydowns. It takes your upfront points cost, the monthly payment reduction those points deliver, and your remaining mortgage term, then calculates how many months of savings are needed to recover the initial expense. The result shows both the break-even point—when cumulative monthly savings equal what you paid upfront—and the total savings across your full remaining mortgage term. Monthly payment saving is the primary driver: larger reductions shorten the payback period significantly. A typical scenario involves comparing whether paying points now makes financial sense given how long you plan to keep the mortgage. The calculator uses a simple payback method and does not account for the time value of money, inflation, or opportunity costs of the upfront capital. Results are for illustration only and do not account for tax implications, refinancing possibilities, or changes to interest rates.
Enter Values
People also use
Mortgage
Mortgage Calculator
Estimate monthly mortgage payments based on loan amount, interest rate, and amortization period. Calculate total interest paid over loan term.
Mortgage
Mortgage Overpayment Break-Even Calculator
Calculate your mortgage overpayment break-even month—see when cumulative interest savings finally exceed the total cash you have overpaid.
Mortgage
Mortgage Points Calculator
Calculate cost of mortgage points and resulting monthly payment reduction. Enter loan amount and points paid to see upfront cost and monthly saving.
Formula Used
Spotted something off?
Calculations or display — let us know.
Disclaimer
Results are estimates for educational purposes only. They do not constitute financial advice. Consult a qualified professional before making financial decisions.
Paying points means handing over cash upfront to reduce the rate. One point is typically 1% of the loan. The question is always: how long to recoup that cash in lower payments. A 3,000 point cost that saves 40/month breaks even at 75 months — 6.25 years. If you plan to stay 10 years and not refinance, points win. If you might move at year 5, they lose.
Quick example
With upfront points cost of 3,000 and monthly payment saving of 40 (plus remaining mortgage months of 300), the result is 75 months. Change any figure and watch the output shift — it's often more useful to see the pattern than to memorise the formula.
Which inputs matter most
You enter Upfront Points Cost, Monthly Payment Saving, and Remaining Mortgage Months. Not every input has equal weight. Adjusting one input at a time toward extreme values shows which ones move the result most.
What's happening under the hood
Break-even month = upfront cost divided by monthly saving. Ignores time value of money — strict payback period. The formula is listed in full below. If the number looks off, you can retrace the calculation by hand — that's the point of showing the working.
What the headline rate hides
Lenders quote a rate; what you pay is a blend of that rate, fees, insurance, and any early-repayment penalty built into the product. The figure here isolates the core interest cost so you can compare like-for-like across deals — then add the other costs separately before signing anything.
What this doesn't capture
The figure excludes arrangement fees, valuation costs, legal fees, insurance, and any early-repayment charges — those can add several thousand to the headline cost. Rate changes at renewal for fixed-term deals will shift the picture further. Use this for the core interest/principal math and add the other costs on top.
Buying £3,000 in points costs 75 months months to break even against £40 in monthly savings.
Inputs
This example uses typical values for illustration. Adjust the inputs above to match a specific situation and see how the result changes.
Sources & Methodology
Methodology
The calculator divides the upfront cost of purchasing mortgage rate points by the monthly payment saving generated by the lower rate. This yields the break-even month at which cumulative savings equal the initial expenditure. The computation treats both the upfront cost and monthly saving as fixed values, applying a simple payback period model that does not account for the time value of money, interest earned on savings, or variation in interest rates over time. The result assumes the mortgage remains active through the break-even point and that monthly savings remain constant. The calculator does not model refinancing scenarios, early repayment, changes in loan terms, or tax implications of interest deductions.
References
Frequently Asked Questions
Are points always worth it?
Is there a tax angle?
Does refinancing reset the clock?
Are points negotiable?
Related Calculators
Mortgage Calculator
Estimate monthly mortgage payments based on loan amount, interest rate, and amortization period. Calculate total interest paid over loan term.
Mortgage Overpayment Break-Even Calculator
Calculate your mortgage overpayment break-even month—see when cumulative interest savings finally exceed the total cash you have overpaid.
Mortgage Points Calculator
Calculate cost of mortgage points and resulting monthly payment reduction. Enter loan amount and points paid to see upfront cost and monthly saving.
More Mortgage Calculators
Mortgage
15 vs 30 Year Mortgage Calculator
Compare 15-year versus 30-year mortgage showing interest savings and monthly payment difference. Enter loan amount and 15-year rate to size affordability.
Mortgage
Adjustable Rate Mortgage Calculator
Calculate ARM payments for both the fixed and reset periods — see how your adjustable rate mortgage cost changes when the rate adjusts.
Mortgage
ARM vs Fixed Rate Mortgage Calculator
Compare ARM initial payment vs fixed-rate mortgage. See 5-year initial savings and the rate gap. Enter loan amount and arm initial rate to size affordability.
Mortgage
Balloon Mortgage Calculator
Calculate balloon mortgage payment due. See monthly payment, total paid before balloon, and final lump sum. Enter loan amount to size affordability.
Mortgage
Biweekly Mortgage Payoff Calculator
Calculate years saved by switching to biweekly mortgage payments, plus the total interest you avoid over the loan's life.
Mortgage
Blended Rate Mortgage Calculator
Calculate the blended (weighted-average) interest rate across two mortgage loans of different balances and rates. Free and educational.
Explore Other Financial Tools
Debt
Loan True Cost Calculator
Calculate the true total cost of a loan including all fees. Returns cost of borrowing, total payments, fees, and cost as a percentage of principal.
SaaS & Subscription
SaaS Pricing Calculator
Calculate the SaaS price needed to hit your LTV:CAC target from acquisition cost, gross margin, and contract length. Free — no signup.
Startup & VC
Seller Discretionary Earnings Calculator
Calculate Seller Discretionary Earnings from net income with add-backs for owner compensation, interest, depreciation, and one-off costs.