Australia · AUD · Mortgage and repayment

Australian Amortization Schedule

Published by REO Technologies · Publisher contact: Abdul Raheem. Explanation and example arithmetic revised 2026-10-26; source-specific dates are stated separately. No licensed financial review is claimed.

Calculate full principal/interest schedules and the effect of permitted extra repayments.

Enter current figures from your documents and quotes. Budget settings are editable. Inputs stay in this tab and are not saved or sent by the calculator.

Reference scope documented 2026-10-25. Use actual lender/insurer quotes and confirmed scheme/tax status. APRA buffers and DTI flow limits do not establish personal approval. Published general-duty budgets exclude unconfirmed concessions and surcharges.

Your inputs

Current principal including financed charges (AUD)Enter your current figure; zero explicitly excludes an optional cost.

Actual / scenario annual nominal rate (%)Enter your current figure; zero explicitly excludes an optional cost.

Remaining repayment yearsMatch the contract or select a clearly labeled planning scenario.

Payment-frequency model

Permitted extra principal each payment (AUD)Enter your current figure; zero explicitly excludes an optional cost.

One-time permitted extra principal (AUD)Enter your current figure; zero explicitly excludes an optional cost.

Payment period for the one-time extraMatch the contract or select a clearly labeled planning scenario.

Permitted year-end extra principal (AUD)Enter your current figure; zero explicitly excludes an optional cost.

Accelerated weekly / biweekly scenario?

How this estimate works

Apply equivalent-period interest to the opening balance, subtract scheduled/extra principal and cap the final payment at balance plus accrued interest. Annual extras follow each complete scheduled year.

Assumptions and limits

Amounts are AUD. Enter actual quotes, current balances and costs. No current bank offer or insurer price is invented.
Constant-rate nominal monthly model. Daily accrual, actual payment dates, rate resets, offsets, fees and lender rounding can change results. A repayment period is different from a fixed-rate product term.
Educational scenarios only; no serviceability, scheme/insurer eligibility, tax assessment or loan approval is established.
The frequency model preserves the monthly nominal convention’s effective annual rate. Some lenders quote other weekly/fortnightly/daily methods. Compare actual terms before using it as a payment instruction. Extra repayments must be allowed under the contract.

References and further reading

Worked Australia example: Australian Amortization Schedule

This is a hypothetical arithmetic example in AUD, not a current lender quote, market observation or borrower record. The same calculator model produces the figures below. Its input assumptions are shown so that you can reproduce or change the scenario.

Assumed input	Illustration value
Current principal including financed charges (AUD)	520,000
Actual / scenario annual nominal rate (%)	6.19
Remaining repayment years	25
Payment-frequency model	Monthly
Permitted extra principal each payment (AUD)	0
One-time permitted extra principal (AUD)	0
Payment period for the one-time extra	1
Permitted year-end extra principal (AUD)	0
Accelerated weekly / biweekly scenario?	No

Calculated measure	Result
Scheduled principal & interest per payment	A$3,411.02
Projected interest with entered extras	A$503,306.11
Interest saved versus the same plan without extras	A$0.00
Payments until payoff	300
Repayment years saved	0
Ending balance	A$0.00

Amounts use unrounded intermediate arithmetic and are rounded only for display. Selecting different costs, rates, payment dates or terms changes the result; no illustration value is prefilled into your personal financial fields.