Mortgages

Mortgage Points Calculator

Calculate upfront cost, monthly payment savings, and break-even timeline when buying discount points to lower your mortgage interest rate.

What this calculator does

The Mortgage Points Calculator estimates your result instantly from the values you enter, using standard mortgages formulas. Calculate upfront cost, monthly payment savings, and break-even timeline when buying discount points to lower your mortgage interest rate. Calculations run in your browser, so nothing you type is sent to a server, and the output is an estimate for planning rather than financial advice.

About Mortgage Points Calculator

The Mortgage Points Calculator helps homebuyers evaluate whether paying upfront discount points to reduce their mortgage interest rate will save money over time by calculating upfront cost, monthly savings, and break-even payback.

Formula & Mathematical Calculation

Cost of Discount Points = Loan Amount × ( Number of Points / 100 )

Break-Even Period (Months) = Cost of Discount Points / Monthly Payment Savings

Calculation Example

$350,000 Loan: 2 Points cost $7,000. Rate drops from 6.75% ($2,270/mo) to 6.25% ($2,155/mo), saving $115/mo. Break-Even = 60.8 Months (~5.1 Years).

Key Benefits

  • Calculates exact upfront cost for discount points
  • Computes monthly savings and lifetime interest reduction
  • Determines the precise month you break even on upfront points
  • Compares keeping cash vs. buying down the rate
  • 100% free tool for home purchase and refinance decisions

How to Use this Calculator

  1. Enter Loan Principal Amount
    Input total borrowed mortgage amount.
  2. Specify Discount Points Purchased
    Enter number of points purchased.
  3. Calculate Break-Even Point
    Click Calculate to view monthly savings and break-even timeframe.

Assumptions & Limitations

What the calculation assumes

  • Every value you enter is treated as an exact, known amount.
  • Rates and contributions are assumed to stay constant for the whole period unless the form asks for them separately.
  • Results use standard financial formulas and ignore fees, penalties and promotional terms that are not entered above.
  • Inflation, tax changes and market volatility are not modelled unless a field for them is provided.
  • Amounts are unit-agnostic: results are returned in the same currency you enter.

What it does not cover

  • Mortgage Points Calculator produces estimates for education and planning, not a quote, offer or professional advice.
  • Real-world outcomes differ when fees, taxes, rounding rules or provider-specific terms apply.
  • Local regulations and tax rules vary by country and change over time; verify current rules for your jurisdiction.
  • Figures are only as accurate as the inputs you supply — check them before acting on the result.
  • For decisions with lasting financial impact, confirm the numbers with a qualified professional.

Frequently Asked Questions

One mortgage discount point costs 1% of the total loan amount ($3,000 on a $300,000 mortgage). In return, lenders typically lower your permanent interest rate by 0.25% (25 basis points), though exact reductions vary by lender.

Divide the upfront dollar cost of points by your monthly interest payment savings: Break-Even (Months) = Upfront Points Cost ÷ Monthly Savings. If points cost $3,000 and save $50 monthly, break-even occurs in 60 months (5 years).

If you plan to sell the home, move, or refinance within 3 to 5 years, you will likely exit the mortgage before recovering the upfront points cost, resulting in a net financial loss.

Points paid on an original purchase loan for a primary residence are generally 100% deductible in the tax year paid. Points paid on a mortgage refinance must be amortized and deducted proportionally over the full loan term.

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Next step: browse the full Mortgages calculators or read the related guides for context before you decide.