How much can I borrow? (especially for home loans)

When buying a home, one of the first questions most people ask is: How much can I actually borrow? The answer isn’t one-size-fits-all—it depends on your income, expenses, credit profile, and the lending policies of the bank or lender you approach. Understanding these factors can help you set realistic expectations and prepare for your home loan application.

1. Income and Expenses

Lenders will start by looking at your household income, including salary, bonuses, rental income, and sometimes even government benefits. From there, they subtract your living expenses and financial commitments—things like personal loans, car finance, credit card limits, or child support payments.

The key measure here is your debt-to-income ratio (DTI). Most lenders want your total monthly debt repayments (including the new mortgage) to stay within a safe percentage of your income, often between 30–40%.

2. Deposit and Loan-to-Value Ratio (LVR)

How much cash you have saved for a deposit also affects borrowing capacity. The more you put down, the lower the loan-to-value ratio (LVR), which is the loan amount compared to the property’s value. A lower LVR makes you less risky to lenders and can increase how much they’re willing to lend.

3. Interest Rates and Loan Terms

Higher interest rates reduce borrowing power because repayments increase. Lenders also use stress testing, calculating repayments at a higher “buffer rate” to make sure you could still afford the loan if rates go up. The loan term matters too—spreading a loan over 30 years means lower monthly repayments than a 20-year loan, which can affect how much you qualify to borrow.

4. Credit Score and History

Your credit report shows how reliably you’ve managed debt in the past. A strong credit score can mean better interest rates and higher borrowing limits, while a poor credit history can restrict your options.

5. Lender Policies and Regulations

Each bank or lender has its own risk appetite and policies. Some may accept higher DTIs, others may apply stricter buffers. On top of this, government regulations and responsible lending laws set minimum standards that all lenders must follow.

6. Using Borrowing Calculators (and Why They’re Only a Guide)

Online borrowing calculators are a good starting point—they’ll estimate how much you might be able to borrow based on income and expenses. But they can’t account for all the nuances of your financial situation or the differences between lenders. Treat them as a guide, not a guarantee.

Final Thoughts

“How much can I borrow?” depends on more than just your salary—it’s about the whole financial picture. If you’re serious about buying, consider talking to a mortgage broker or financial adviser who can give you a clearer figure based on your personal circumstances and help you compare lenders.

Knowing your borrowing capacity early will save time, prevent disappointment, and help you focus your property search on homes that truly fit your budget.