Home Equity & Usable Equity Calculator

Work out how much of your home you own and how much more you might be able to borrow against it.

How this tool works

Reviewed 12 September 2026. Selected-LVR arithmetic; default target 80%.

Calculation outline

Calculates total equity as market property valuation minus existing mortgage debt.
Determines extra amount you could borrow at the selected 50-95% LVR, clipped to zero. Above 80%, LMI may apply or the loan may be unavailable.
Shows a deposit-based property illustration at four times headroom, assuming 20% deposit and 5% costs. This does not test the next loan or actual costs, which can exceed 5%.

Worked example

Example: a property valued at $900,000 with a $450,000 mortgage has $450,000 total equity (50% LVR) and $270,000 in usable equity at 80% LVR ($720k max loan - $450k debt).

Limits

Lenders require a formal property valuation (which may differ from estimated valuation) and evidence of ongoing ability to repay debt.

Sources

ASIC Moneysmart using home equity

This tool provides general information and illustrative estimates only. It does not consider your objectives, financial situation or needs and is not personal financial, tax or legal advice.