Mortgage Affordability Calculator Australia 2026 | How Much Can I Borrow? (Borrowing Power + Deposit)
Use GlobalCalqulate’s free Mortgage Affordability Calculator (Australia, 2026) to estimate how much you can afford to borrow for a home loan. Calculate borrowing power based on income, deposit, interest rate, loan term and monthly expenses. Stress test higher interest rates, estimate monthly repayments, and see how deposit size and Lenders Mortgage Insurance (LMI) may affect affordability — ideal for first home buyers and home movers in NSW, VIC, QLD, WA, SA, TAS, ACT and NT.
Income
Expenses & Liabilities
Deposit
Loan Settings
✓ Last updated: March 2026 | Built with CRA-official rates, Bank of Canada data, and OSFI guidelines
How to Use This Calculator
Add your main and any additional income.
Include realistic monthly living costs and loan repayments.
Enter deposit, expected interest rate and stress-test rate.
See how much you may be able to borrow and afford.
Understanding Your Results
Key Tips
- ✓Reducing debts can significantly increase borrowing power.
- ✓Larger deposits lower LVR and may avoid LMI.
- ✓Always stress test at higher rates before committing.
Frequently Asked Questions
Clear answers to common questions to help you use this calculator confidently.
How does the GlobalCalqulate Mortgage Affordability Calculator Australia work?
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How does the GlobalCalqulate Mortgage Affordability Calculator Australia work?
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The GlobalCalqulate Mortgage Affordability Calculator Australia estimates how much you may be able to borrow based on your income, expenses, deposit and assumed interest rate. You can adjust inputs to explore different scenarios. Results are indicative and meant for planning.
What inputs do I need to use the Mortgage Affordability Calculator?
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What inputs do I need to use the Mortgage Affordability Calculator?
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You enter your income, living expenses, existing debts and deposit amount. Some versions may also include interest rate and loan term. All values are entered in AUD.
What results does this mortgage affordability calculator show?
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What results does this mortgage affordability calculator show?
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The calculator shows an estimated borrowing capacity and potential repayment range. It helps you understand what price range may be realistic.
How accurate is this Mortgage Affordability Calculator for Australia?
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How accurate is this Mortgage Affordability Calculator for Australia?
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The calculator uses standard Australian home loan formulas and common serviceability assumptions. Actual lender assessments may vary.
What assumptions does this calculator make?
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What assumptions does this calculator make?
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It assumes stable income and expenses and a constant interest rate. It does not account for future rate changes or lender-specific criteria.
Does this calculator consider Australian lending buffers?
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Does this calculator consider Australian lending buffers?
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It applies indicative buffers commonly used in Australia. Exact buffer levels may differ between lenders.
Who should use the Mortgage Affordability Calculator Australia?
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Who should use the Mortgage Affordability Calculator Australia?
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Australians planning to buy a home or refinance can use this calculator. It is helpful for early-stage budgeting.
Is this calculator suitable for first home buyers?
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Is this calculator suitable for first home buyers?
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Yes. It helps first home buyers understand potential borrowing limits and plan deposits.
Can couples or families use this calculator?
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Can couples or families use this calculator?
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Yes. Combined income and expenses can be entered to estimate joint affordability.
What happens if I increase my income?
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What happens if I increase my income?
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Higher income generally increases estimated borrowing capacity. The calculator shows this effect.
What happens if my expenses increase?
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What happens if my expenses increase?
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Higher expenses usually reduce borrowing capacity. You can test different expense levels.
How does changing the interest rate affect affordability?
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How does changing the interest rate affect affordability?
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Higher rates reduce estimated borrowing capacity, while lower rates increase it. The calculator allows scenario testing.
What happens if I increase my deposit?
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What happens if I increase my deposit?
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A larger deposit may improve affordability and reduce required borrowing. The calculator reflects this change.
Does this calculator work for Sydney, Melbourne and other Australian cities?
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Does this calculator work for Sydney, Melbourne and other Australian cities?
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Yes. The calculator can be used anywhere in Australia. Location does not change the underlying calculations.
Can regional Australians use this mortgage affordability calculator?
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Can regional Australians use this mortgage affordability calculator?
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Yes. Regional users can enter their details and receive the same type of estimates.
Does this mortgage affordability calculator include taxes or government fees?
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Does this mortgage affordability calculator include taxes or government fees?
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No. It focuses on borrowing capacity estimates only. Other costs should be considered separately.
Is the Mortgage Affordability Calculator Australia financial advice?
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Is the Mortgage Affordability Calculator Australia financial advice?
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No. The results are estimates for general planning purposes only. You may wish to seek personalised guidance from a qualified professional.
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