Free property calculators
Quick, accurate calculators for every property decision — from stamp duty to development feasibility.
Stamp duty
State-by-state stamp duty for owner-occupiers, investors, first home buyers and foreign purchasers.
Mortgage repayments
Principal and interest, interest-only and split-loan repayments at any rate and term.
Borrowing capacity
How much you could borrow based on income, expenses and existing commitments.
Rental yield
Gross and net yield, including vacancy and outgoings, for any rent and price combination.
Cash-on-cash return
Year-one return on the cash you actually put in — the metric investors care about.
IRR & equity multiple
Multi-year IRR and equity multiple for development, value-add or hold scenarios.
Land value residual
Back-solve the land price that makes a development feasible at your target margin.
Feasibility quick-check
Yield, GFA, revenue and margin in 60 seconds — before you commission a single drawing.
Need more than a calculator?
Combine these calculators with live Australian property data inside Insitive.