Loan basics
Amortization
Definition
Amortization is the schedule by which a loan is repaid in equal periodic payments, each split between interest and principal. Early payments are mostly interest; as the balance falls, a growing share of each payment reduces principal until the loan reaches zero at the end of its term.
Amortization, explained
On a 30-year fixed mortgage the monthly payment never changes, but its composition does. The interest part is the current balance times the monthly rate, and whatever is left over repays principal.
That is why extra payments early in a loan save so much interest: every dollar of principal removed stops accruing interest for the rest of the term.
See amortization in a calculator
The Extra Payment Calculator shows how this works with real numbers. See how an extra monthly payment shortens your loan and cuts total interest.
Open the Extra Payment CalculatorRelated terms
- Principal and interest (P&I)Principal and interest (P&I) is the part of a mortgage payment that repays the loan balance (principal) and pays the lender’s charge for borrowing (interest).
- Mortgage recastA mortgage recast re-amortizes an existing loan after the borrower pays a lump sum toward principal, lowering the monthly payment while keeping the same rate and maturity date.
- Annual percentage rate (APR)The annual percentage rate (APR) expresses the yearly cost of a loan including the interest rate plus certain finance charges such as points and some lender fees.
Q.01What is amortization?
Q.02Why is most of my early mortgage payment interest?
Q.03Does an amortization schedule change with extra payments?
Explain it with their numbers
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