Amortization Schedule Calculator (USA)
Generate a loan amortization schedule: monthly payment, payoff date, total interest, and a detailed schedule with optional extra payments.
Inputs
Results
Monthly payment (P&I)
$0
Payoff date (est.)
—
Total interest
$0
Total paid
$0
Showing 0 rows.
Note: This schedule shows principal & interest only (no taxes/insurance/HOA). Exact lender rules may differ.
Loan balance over time
Estimated remaining balance by month (downward trend).
Principal vs interest (total)
How much you pay in principal vs interest.
How to use
- Enter your loan amount, APR, term, and a start month.
- Add optional extra monthly and/or a one-time lump sum to see how payoff date and interest change.
- Click Calculate to generate the schedule. Use Yearly summary for a cleaner view on mobile.
Want the full mortgage payment (including taxes/insurance/PMI/HOA)? Use the Mortgage Payment Calculator (USA). Planning a refinance? Try the Mortgage Refinance Calculator (USA). Estimating when PMI could drop? Use the PMI Removal Date Calculator (USA).
Amortization schedule calculator (USA): payment breakdown and payoff timeline
An amortization schedule shows how each monthly payment on a loan is split between interest and principal. Early in the loan, a larger share of each payment typically goes to interest; over time, more goes to principal and your balance falls faster. Seeing the full schedule helps you understand the real cost of borrowing and how extra payments can reduce total interest and shorten the payoff date.
This calculator generates a schedule for principal & interest using your loan amount, APR, and term. You can also add extra payments to see how they accelerate payoff. If you’re budgeting for the full monthly housing cost (including property taxes, homeowners insurance, PMI, or HOA), use the Mortgage Payment Calculator (USA).
If you’re evaluating a refinance, an amortization schedule can help compare payoff timelines and interest cost. Pair this with the Mortgage Refinance Calculator (USA). And if PMI is part of your payment, you may want to estimate when it could be removed using the PMI Removal Date Calculator (USA).
FAQ
It’s a payment-by-payment table showing how much of each payment goes to interest vs principal, and the remaining balance over time.
No. This schedule shows principal & interest only. For a full payment estimate (tax/insurance/PMI/HOA), use the Mortgage Payment Calculator (USA).
Typically yes. Extra payments reduce the principal balance faster, which can lower total interest and shorten the payoff date (lender rules may vary).
Interest is calculated on the remaining balance. At the start, the balance is highest, so the interest portion of each payment is typically higher.