// SERVICEABILITY
Borrowing Power
Calculator
Estimate how much you can borrow for a home loan. Uses APRA's serviceability buffer (loan rate + 3%) and accounts for your income, debts, and living expenses.
// APPLICANT_TYPE
Single or joint application
Gross annual income$100,000
// EXISTING_DEBTS
Monthly repayments on existing loans
Car loan monthly repayment$0/mo
Personal loan monthly repayment$0/mo
Credit card limits (total)$10,000
// LIVING_EXPENSES
Monthly household living costs
Household type
Override with your actual expensesUsing benchmark
// LOAN_PARAMETERS
Proposed loan structure
Interest rate (p.a.)6.24%
Loan term30 years
Estimated borrowing capacity
$571,810
Based on serviceability assessment at 9.24% (your rate + 3% APRA buffer)
Monthly repayment
$3,517
At 6.24% actual rate
Debt-to-income ratio
5.7×
Lender cap typically 6×
How APRA serviceability works: Australian banks must assess your ability to repay at a stress rate of 9.24% (your rate of 6.24% + 3% buffer, minimum 9%). This is a regulatory requirement, not a bank choice. Your calculated capacity uses $833 living expense buffer and assumes $2,500/mo living expenses.
// PROPERTY_PRICE_SCENARIOS
Maximum property you can target at different deposit sizes
| Deposit % | Deposit needed | Max property price | LMI required? |
|---|---|---|---|
| 5% | $30,095 | $601,906 | Yes |
| 10% | $63,534 | $635,345 | Yes |
| 20% | $142,953 | $714,763 | No |
| 25% | $190,603 | $762,414 | No |
// SERVICEABILITY_BREAKDOWN
Gross monthly income (×90%)$7,500
Less: Existing loan repayments$0
Less: Credit card commitment (3% of limits)−$300
Less: Living expenses−$2,500
= Available for new loan repayment$4,700
Assessment rate9.24%
Borrowing capacity$571,810
Estimate only. This uses a simplified serviceability model. Actual lender assessments vary and include additional factors such as employment type, rental income shading, HEM vs actual expenses, and individual credit policies. Numbers are illustrative — speak to a mortgage broker for a real pre-approval. Not financial advice.