Understanding Amortization Schedule Basics

Amortization is the process of paying off a loan with equal periodic payments that cover both interest and principal. The schedule is the table that shows how each payment is split. For a fixed-rate loan, the total payment stays the same, but the interest share shrinks and the principal share grows over time. Generate your own with the Amortization Schedule Calculator.

How the Split Works

Interest is calculated on the remaining balance. In month one the balance is highest, so the interest charge is largest. Your payment minus that interest is the principal paid that month. The next month the balance is lower, so interest is slightly less and principal is slightly more. By the last payment, almost the entire amount goes to principal.

Same Formula as Other Loan Tools

The Amortization Schedule Calculator uses the same standard formula as the Loan Payment Calculator and Mortgage Payment Calculator: monthly payment = principal × (monthly rate × (1 + r)^n) / ((1 + r)^n − 1). The schedule then derives each row from that payment and the declining balance. No external data is used; results are deterministic from the inputs.

Practical Takeaway

Use the schedule to see the true cost of the loan (total interest) and to plan extra payments or refinancing. The calculator supports any loan amount, rate, and term with monthly payments.