How much can you realistically borrow?

Estimate borrowing power using Australian tax, living expenses, debts and lender-style serviceability assumptions.

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We convert gross to net using 2026/27 resident tax bands. The Medicare levy toggle applies a simple 2% estimate.
The estimate uses the higher of your entered expenses and the household expense floor below.
Used to set the minimum monthly expense floor.
Advanced options
Simple estimate only; Medicare reductions, exemptions, and MLS are not modelled.
Estimated at 3% of limits as a monthly commitment.
For savings that must also pay duty and fees, use the Deposit & Costs planner.
Concessions and surcharges vary by state and are flagged separately.
Used only for the foreign-purchaser surcharge estimate.
The calculator otherwise shows general duty for conditional concessions.

Your estimated borrowing power

Estimated lender-style buffered capacity—
Capacity at your entered interest rate—
Difference caused by the rate buffer—
Estimated net monthly income—
Living expenses used in estimate—
Assessed monthly commitments—
Indicative monthly P&I @ your rate—
Interest‑only monthly @ your rate—
LVR—
Estimated LMI—
Stamp duty at entered property price—

Lenders commonly test repayments at a higher rate to check whether you could still manage if rates rose. This is why the buffered estimate is usually lower.

Turn this borrowing estimate into a purchase plan

Use your borrowing result, deposit set aside and state to estimate duty and other upfront costs.

Plan deposit and upfront costs

See why borrowing estimates vary

Use the same ten household scenarios to compare BorrowPower with the public calculators from ANZ, CommBank, NAB and Westpac. The comparison is dated and designed for a monthly refresh.

View lender calculator comparison

Calculation assumptions and data sources
  • Tax uses 2026/27 Australian resident rates. Medicare levy is optional and estimated at 2% when enabled.
  • Borrowing power subtracts expenses, debts, HELP/HECS repayment, and 3% of credit card limits, then applies a 3% rate buffer.
  • Stamp duty uses state/territory rates with buyer-type estimates where the available inputs support them. Conditional schemes are noted in the result message.
  • LMI is an approximate owner-occupied full-doc estimate. Actual lender and insurer premiums vary.

This calculator provides general estimates only and is not financial advice. Please check with a licensed lender, broker, or financial adviser before making decisions.

What is affecting your borrowing power?

Income is only one part of the estimate. Living expenses, credit-card limits, personal or car loan repayments, HELP/HECS, dependants, the interest rate and the lender-style assessment buffer can all change the result.

See the main factors that can affect borrowing power Test repayments at different rates

Buying your first home?

Turn a borrowing estimate into a purchase plan: check your deposit after costs, estimate conditional stamp-duty concessions, understand LMI and stress-test repayments.

Open the First Home Buyer Hub Check government schemes

Thinking about refinancing?

Compare the repayment change with switching costs, break-even time and the features you would actually use before applying for a new loan.

Calculate refinance break-even Open the Refinancing Hub