How this calculator works
Your total equity is the property value less what you still owe. Usable equity is smaller, because a bank will only lend up to a maximum loan-to-value ratio, commonly 80% for owner-occupiers. The usable amount is that capped lending less your current loan:
Usable equity = (property value × max LVR) − current loan
The indicative budget takes that usable equity as the deposit on a next purchase and grosses it up by the deposit percentage you enter. It is a rough ceiling only; the bank's income and servicing tests, not your equity, are usually what decides how much you can actually borrow.
Worked example
Say your home is worth $800,000 and you owe $400,000. Your total equity is $400,000, but at an 80% cap the bank will lend up to $640,000, so your usable equity is $240,000. Used as a 20% deposit on a next home, that points to an indicative budget of around $1.2 million, before any check on whether your income can service the larger loan. Push the LVR cap down to an investor's level and the usable figure falls accordingly.
What changes the answer
- Property value — a higher value lifts the amount the LVR cap allows you to borrow.
- Current loan — the more you still owe, the less headroom remains under the cap.
- Maximum LVR — owner-occupiers usually reach 80%; investors are often held lower, which cuts usable equity.
- Servicing — not in the equity sum at all, but in practice the real limit on what you can draw.
A note on accuracy
This calculator works on full, unrounded figures and rounds only for display. It shows the equity ceiling set by a maximum LVR and does not model income, servicing tests, low-equity margins above 80%, or a bank's valuation of your property. For general guidance, see Sorted, and our methodology for the formulas and sources.