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Mortgage Amortization Calculator

A full payment-by-payment schedule with yearly totals.

Calculators Reviews Free · no sign-up
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Where the first payment goes

Principal—

Interest—

YearPaymentPrincipalInterestBalanceEquity

Monthly payment

—

Total interest—
Total paid—
Number of payments—
Payoff date—
Interest as % of loan—

Quick Tool Overview

The Mortgage Amortization Calculator produces the complete payment schedule for a loan: principal, interest, balance and cumulative totals for every single payment, with a year-by-year summary and the crossover point where principal finally overtakes interest.

What it does
Generates a full amortization schedule for any mortgage
You give it
A loan amount, rate, term and optional extra payment
You get back
Every payment split into principal and interest, plus yearly totals
Best for
Seeing where your payments actually go over the life of a loan
Calculators Free, unlimited use No sign-up Runs in your browser

About the Mortgage Amortization Calculator

Enter the loan amount, rate and term to produce the full amortization schedule: every payment split into principal and interest, the balance after each one, and the equity you have built. Switch between the monthly detail and a year-by-year summary.

The schedule answers a question the monthly payment cannot. On a thirty-year mortgage at a typical rate, the first payment is roughly three-quarters interest, and the crossover point where principal finally exceeds interest arrives more than a decade in. That shape is why selling early returns so little equity, why overpayments early are worth several times the same amount late, and why the total interest column is the figure worth reading before signing.

Key features of the Mortgage Amortization Calculator

Monthly and yearly views

Switch between payment-level detail and an annual summary depending on what you are checking.

Crossover point identified

The exact payment at which principal first exceeds interest, which on a long loan arrives later than most people expect.

Equity tracked

Cumulative principal paid is the equity you have built, shown alongside the balance remaining.

Extra payments rebuild the schedule

Add an overpayment and the whole table recalculates, ending on the payment that becomes the last one.

Dated rows

Set a start month so every payment carries a real calendar date rather than a number.

How to use the Mortgage Amortization Calculator

  1. 1

    Enter the loan details

    The amount borrowed, the annual interest rate and the term in years.

  2. 2

    Set the start month

    So the schedule is dated and you can see which calendar year each payment falls in.

  3. 3

    Add any extra payment

    The schedule recalculates around it, showing the shortened term and the interest saved.

  4. 4

    Switch to the yearly view

    Use the annual summary for the overview and the monthly table for the detail.

Frequently asked questions

A table listing every payment over the life of a loan, showing how much of each one goes to interest, how much reduces the principal, and what balance remains afterwards.

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