Calculation method
Iₜ = Bₜ₋₁ × r; Pₜ = A − IₜFor every period, interest is calculated on the opening balance; the rest of the level payment reduces principal, producing the next balance.
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HOME, BILLS AND MORTGAGES
Loan amortization schedule
Payment, principal, interest and remaining balance
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HOW IT WORKS
A result to understand, not just read.
Generate a repayment schedule that separates each instalment into interest and principal and follows the outstanding balance over time. It is useful for checking how a fixed-payment loan evolves.
FREQUENTLY ASKED QUESTIONS
How does loan amortization schedule work?+
For every period, interest is calculated on the opening balance; the rest of the level payment reduces principal, producing the next balance.
What should I check before relying on the result?+
Lender dates, rounding, fees, variable rates and irregular payments can produce a different official schedule.
RESULT GUIDE
How to use loan amortization schedule
Generate a repayment schedule that separates each instalment into interest and principal and follows the outstanding balance over time. It is useful for checking how a fixed-payment loan evolves.
Practical example
- Enter principal, nominal annual rate, term and payment frequency, then inspect the first and final rows.
Lender dates, rounding, fees, variable rates and irregular payments can produce a different official schedule.
How to interpret the result
- Early payments normally contain more interest because the outstanding balance is still high.
- Change one input at a time to understand which assumption has the greatest effect on the result.
What the estimate does not include
- Lender dates, rounding, fees, variable rates and irregular payments can produce a different official schedule.
- Use the result as a planning aid and confirm sensitive financial, health or animal-care decisions with the relevant document or qualified professional.
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