A home loan is likely the largest financial commitment most Australians will ever make. Understanding exactly what you are paying — and how small changes can save tens of thousands of dollars — is essential. AussieCalc's mortgage calculators are built specifically for Australian home loans with 2025–26 figures.

Repayments and Cash Flow

The Mortgage Repayment Calculator is the starting point for any home loan analysis. Enter your loan amount, interest rate, and term to see monthly, fortnightly, or weekly repayments. Switching from monthly to fortnightly repayments alone can save years off a 30-year loan simply because you make 26 half-payments — equivalent to 13 full months — each year.

Reducing Your Interest Bill

Two of the most powerful tools for cutting interest are offset accounts and extra repayments. The Offset Savings Calculator shows how keeping your savings in an offset account rather than a separate savings account can slash years off your loan. The Extra Repayments Calculator shows the impact of paying even a few hundred dollars extra each month.

Refinancing and Rate Strategy

With Australian lenders competing aggressively for borrowers, refinancing can deliver significant savings — but there are exit costs and application costs to factor in. The Refinancing Calculator calculates your break-even period so you know if a switch makes financial sense. The Fixed vs Variable Calculator helps you model which rate type suits your situation, while the Fixed Rate Break Cost Calculator estimates the penalty for exiting a fixed loan early.

Borrowing Power

The How Much Can I Borrow calculator applies the APRA 3% serviceability buffer to your income and expenses to give a realistic estimate of what Australian lenders will approve. All figures assume 2025–26 tax rates and the current RBA cash rate environment.