Loan Amortization Explained: Where Does Your Monthly Payment Actually Go?
Loan amortization is the schedule that shows how each payment is split between interest and principal. It explains why early payments often feel slow and why extra principal payments can save money.
Principal vs Interest
Principal is the amount you borrowed. Interest is the cost of borrowing. Each monthly payment usually includes both.
Use the Loan Payment Calculator to estimate the required payment for a balance, rate, and term.
Why Early Payments Are Interest Heavy
At the beginning of a loan, the balance is highest, so interest charges are higher. Over time, more of each payment goes toward principal as the balance falls.
Use the Amortization Schedule Calculator and Loan Amortization Calculator to see the month-by-month breakdown.
APR and Interest Rate Are Not Always the Same
The interest rate shows the borrowing rate, while APR may include certain fees. Comparing APR can help when choosing between loan offers.
Use the APR Calculator and Interest Calculator to understand the real cost.
Extra Payments Can Change the Schedule
Extra principal payments reduce the balance faster, which can reduce future interest and shorten payoff time.
Use the Debt Payoff Calculator when comparing extra payment strategies.
Bottom Line
Amortization shows where your payment goes. Understanding the split between interest and principal helps you compare loans, plan extra payments, and avoid surprises.