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Amortisation Calculator

Generate a full amortisation schedule for any Australian loan. See exactly how each repayment splits between principal and interest, and how extra payments save you thousands.

Loan Details
Loan Amount ?
$
Loan Term ?
years
Interest Rate ?
% p.a.
Start Date

Extra Repayments (saves interest)

Extra Monthly ?
$
Extra Yearly ?
$
Summary
Monthly Repayment
$3,079.15
Over 360 months
StandardWith Extra

Amortisation Schedule

PeriodDateInterestPrincipalExtraBalance

About Amortisation

Amortisation is the process of paying off a loan through regular repayments. Each payment covers interest first, with the remainder reducing the principal balance.

How Extra Repayments Help

Making extra repayments directly reduces your principal, which reduces the interest calculated in subsequent periods. Even small extra amounts compound significantly over a 25–30 year mortgage — an extra $200/month on a $500,000 loan at 6.25% can save over $90,000 in interest and cut 4+ years from the loan.

Offset Accounts

An offset account works differently — your savings balance offsets (reduces) the principal on which interest is calculated, but the loan term and repayment remain unchanged unless you refinance. The effective saving can be similar to making extra repayments.

Redraw Facility

If your loan allows redraw, any extra repayments can be accessed later. This provides flexibility but requires discipline to not redraw unnecessarily.