How to Read an Amortization Schedule

An amortization schedule lists loan payments over time and shows how each payment affects the outstanding balance. It helps you compare a quoted monthly payment with the full cost of a loan.

Read one row at a time

Each row typically shows the payment date, starting balance, interest charged, principal paid, and ending balance. If fees or other charges are included, read how they are displayed. Early in a fixed-payment loan, interest often takes a larger share because the outstanding principal is higher. As the balance falls, more of the same payment goes toward principal.

For illustration, a $400,000 loan at a fixed 7% annual rate over 30 years has a principal-and-interest payment of about $2,661 a month. The first month’s interest is about $2,333, leaving about $328 for principal. This example excludes taxes, insurance, fees, and differences in compounding or payment timing; your actual offer may differ.

Compare extra payments carefully

An extra payment applied to principal can reduce future interest, but savings depend on the rate, remaining term, timing, fees, and your lender’s rules. Check whether a prepayment penalty applies and how the servicer allocates an extra payment. Use Loan Calculator to model a scenario, then compare it with the lender’s official schedule.

Questions to ask before signing

Check the annual percentage rate, total repayment amount, payment frequency, fees, and whether the rate can change. Ask the lender for its amortization or payment information and confirm any difference from a calculator estimate. A schedule is a planning tool; the signed loan terms govern the actual payments.

For an actual payoff decision, request the lender’s current payoff figure. It can include accrued interest and fees that a generic calculator cannot know.

Frequently Asked Questions (FAQ)

Why is the first payment mostly interest? Interest is calculated on the outstanding balance. Early in a fixed-payment loan, that balance is larger, so interest can take a greater share of the same payment.

Why does my lender's schedule differ from a calculator? Payment dates, fees, rounding, rate changes, and extra payments can differ from the model. Compare the assumptions and ask the lender for an official statement.

Does an extra payment always shorten the term? Only if the lender applies it to principal and keeps scheduled payments unchanged under the contract. Confirm the allocation and inspect the next statement.