Borrowing Power Explained: 6 Questions Every Home Buyer Asks

Among the various concepts people research in Australian home buying, borrowing power stands out as both the most popular and the most misunderstood. Here are the six questions buyers ask most, answered plainly.

What is borrowing power?

The maximum loan amount a lender will provide depends on your income, expenses, existing debts, and deposit size. Lenders refer to this as borrowing capacity. The serviceability assessment uses your complete financial information to calculate this figure.

How does a serviceability calculator work?

Lenders use a buffer rate which adds 3 percent to the current loan interest rate for testing your ability to pay back loans during interest rate increases. Your gross income is used, minus existing commitments, HECS repayments, and estimated living expenses. The result determines your maximum monthly repayment, which then sets your borrowing limit.

Does HECS affect my borrowing capacity?

Yes, it has an important impact. At an income of $95,000, HECS repayments of roughly $6,000 per year reduce your monthly disposable income by over $500. Most lenders add this obligation directly to your monthly commitments when running the serviceability calculation. Many borrowers discover their HECS debt reduces their loan limit by $40,000 to $60,000.

Can I use overtime or bonuses to increase my borrowing power?

It depends on lender requirements and income stability. Some lenders accept 100% of overtime shown on payslips over 12 months. Others only accept base salary. The YTD income calculator demonstrates regular overtime work patterns because it shows ongoing work for the entire year. Your broker needs to match you to a lender whose policy suits your income type.

What reduces my borrowing power that I might not expect?

All your financial obligations — credit card limits, buy now pay later accounts, car loans, personal loans — limit your borrowing capacity because lenders consider your entire financial commitments. Lenders use the credit card limit, not the balance.

What is the fastest way to get an accurate borrowing capacity assessment?

The most accurate assessment starts with verified income. Upload your payslips to an automated analysis tool that verifies your YTD income and deductions, then conduct a serviceability calculation based on actual lender policies. BrokerMaite gives your broker the verified income figures they need to run a precise borrowing power assessment in minutes.