LoanMath

Loan Amortization Schedule with Extra Payments

Extra payments shorten the schedule.

Your figures stay on your computer — no server, no tracking, no registration
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Try: Current balance=20000, APR=6.5, Months remaining=60, Extra / month=150 → $20,000, $391, $150, $541, 42, $1,103

How to use

Add a fixed extra amount each month and watch the term shrink and interest fall. Built on the same amortization loop.

Formula

Re-run amortization with payment = PMT + extra.

FAQ

Apply to principal?

Extra paid usually reduces principal directly, saving the most interest.

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