Breaking Down the Amortization Schedule
The amortization schedule is the heart of any fixed-rate loan analysis. It shows exactly what happens to every monthly payment from the first month until the loan is paid off.
Understanding the Columns
Each row represents one monthly payment. The payment amount stays constant—that is the beauty of fixed-rate loans. The interest portion is calculated by multiplying the current remaining balance by the monthly interest rate.
Early in the loan, most of your payment covers interest because the balance is still high. As you pay down principal, the interest portion shrinks and more of each payment reduces the balance. This is why you build equity faster in the later years of a mortgage.
"The final row always shows a remaining balance of zero. If there is a tiny rounding difference, our calculator automatically adjusts the last principal payment so everything closes cleanly."
How the Table Helps You Plan
Looking at the schedule lets you answer real questions. How much interest will I pay in the first five years? When will my balance drop below half the original loan?
Pro Planning Tip
Click any row in our calculator to highlight it. You'll see exactly where you are on the balance trend chart. This visual connection helps you understand the curve: slow progress at first, then rapid acceleration as interest takes a smaller share.