Mortgage Calculators

Mortgage Calculators

Find the right mortgage calculator for your situation: repayment, borrowing power, offset, refinance, first-home buyer, fixed vs variable, and more.

Common questions

How is my repayment calculated?
We use the standard amortisation formula to calculate principal and interest repayments based on your loan amount, interest rate, and term.
What does the stress test show?
It models your repayment if interest rates increase by 1% or 2% above your current rate, helping you assess affordability risk.
Is this tool free?
Yes, all calculators are 100% free with no signup required.

Last updated 12 May 2026 Tax year 2025-26

Data sources: ATO (ato.gov.au), Services Australia

This tool is general information only, not financial advice.

Reviewed by AusTax Tools Editorial Desk

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