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Calculators. Before you sign.

Four calculators for the numbers that matter before you commit: your repayments, how much you could borrow, how much sooner you could own it, and the stamp duty in any state or territory. They run on your device, and the figures you type never leave it.

  1. RepaymentsWhat will my repayments be?
  2. Borrowing powerHow much could I borrow?
  3. Extra repaymentsHow much sooner could I own it?
  4. Stamp duty, every stateWhat’s the duty on my purchase?

Stamp duty by state8 calculators

  1. NSWNew South Wales
  2. VICVictoria
  3. QLDQueensland
  4. WAWestern Australia
  5. SASouth Australia
  6. TASTasmania
  7. ACTAustralian Capital Territory
  8. NTNorthern Territory

Found the one? We’ll review the contract before you commit.

Get a quote 1300 474 257

How they work. In plain English.

  1. They run on your device

    Everything you type is worked out in your browser. Nothing is sent to Ishaks or stored, and a figure you carry from one calculator to another stays in that browser tab.

  2. Where the starting figures come from

    The loan calculators start at 6.16%, the average rate on new owner-occupier home loans in August 2026 (Reserve Bank of Australia), over 30 years. Replace it with the rate your lender quotes. Stamp duty rates and concessions come from each state and territory revenue office, checked 6 November 2026.

  3. Estimates, not advice

    General information only, not financial advice, a credit assessment or an offer of finance. The figures are estimates, and your lender’s figures are the ones that count. The duty on your purchase is confirmed when we review your contract.

  4. When you’ve found the property

    We review the contract before you commit, run the searches, and take the purchase through to settlement, in all eight states and territories. Call 1300 474 257, open 7 days, or ask for a quote.