What Does the Government Want From Your Purchase?

Now you know what the government may want from the deal.

Test whether the rest of the purchase still works. Stamp duty is only one part of the upfront-cost pile.

How this Stamp Duty Calculator works

Stamp duty, also called transfer duty, is set by each state and territory rather than by one national rulebook. This calculator separates jurisdictions, rate brackets, concession methods, surcharge settings, grants, pensioner pathways and special rules instead of forcing everything through one watered-down national model.

That matters because the same property price can produce a very different duty result depending on the location, buyer type, occupancy intention, property type and concession eligibility. Some jurisdictions also use stepped concessions, sliding scales, premium thresholds or other state-specific logic that makes generic calculators look neat but not especially trustworthy.

So this calculator works by matching the inputs to the relevant state rule set, checking for applicable concession or surcharge logic, and then estimating duty using the active schedule. In other words, it behaves like a calculator should, not like a brochure pretending arithmetic is optional.

This Stamp Duty Calculator is a guide, not a guarantee. It:

• Uses the property value, location and buyer details you enter to estimate a possible stamp duty outcome.
• Treats the information entered as accurate, current and broadly consistent with how state and territory rules are applied.
• Assumes buyer type, property type and concession choices are selected correctly and not simplified just to make the number look friendlier.
• Uses modelled state-based duty settings and does not replicate every nuance of each revenue office's legislation, thresholds or future policy changes.
• May differ from a revenue office or lender calculator, which can apply their own specific formulas, caps, exemptions and timing rules.

How to interpret your results

If the result is lower than expected, that usually means a concession or more favourable duty setting may be doing real work. If it is higher than expected, good — that pain is better discovered on a calculator page than halfway through a property purchase.

The main thing to understand is that stamp duty is not an isolated annoyance. It is part of the full entry cost of the transaction, which means it should be read alongside deposit, legal costs, inspections, lender fees and a cash buffer. A purchase can look affordable on borrowing power and still fail the wider upfront-cost test once duty is layered back in. That is why this result should lead straight into buying-cost planning and repayment testing, not into emotional property browsing.

Additional fees to be aware of

Stamp duty is one of the bigger upfront costs in a property purchase, but it is not the only government-style cost that can show up before settlement. Depending on the state or territory, buyers may also face transfer, registration, lodgement or similar land-title administration fees when ownership and mortgage interests are recorded.

These costs are usually much smaller than stamp duty, but they still belong in a realistic buying budget. They are the kind of fees that rarely destroy a deal on their own, but they are perfectly capable of turning a "we've got enough" budget into something much less convincing once everything is added together.

The exact mix of extra fees can vary depending on the state, the type of transfer, whether a mortgage is being registered, and how the documents are lodged. Some jurisdictions publish separate land-title or transfer-fee calculators, while others bundle the logic differently from the main duty estimate.

Indicative only: Additional fees can vary based on title structure, transaction type, mortgage registration, and whether documents are lodged electronically or on paper. Confirm final figures with your conveyancer, land titles office, or the relevant state authority before settlement.

Things to watch out for

• This property may sit above the threshold where first home buyer relief phases out or stops.
• Foreign purchaser surcharge may apply in addition to transfer duty.
• This estimate does not include legal costs, inspections, lender fees or other settlement costs.
• Government rules can change. Confirm final figures before exchange or settlement.

How to use the result in your budget

• Estimate the likely stamp duty on the property value you are targeting.
• Add deposit, legal costs, inspections, lender fees and a buffer so the plan starts behaving like a real transaction instead of a polished fantasy.
• Use the Home Buying Costs Calculator to pull the full upfront picture together.
• Then test repayments with the Home Loan Repayment Calculator, because getting into the property and carrying the property are two very different financial fights.

The basic rule is simple: stamp duty affects whether you can get through the front gate, while repayments affect whether you can survive life on the other side of it.

Calculator assumptions

This calculator estimates transfer duty using simplified state-based bracket schedules current as at May 2026 for NSW, VIC, QLD, WA, SA, TAS, ACT and NT. First home buyer concessions are modelled with state-specific thresholds (e.g. NSW exemption to $800k, VIC to $600k, QLD to $700k, WA to $450k) and phased relief above those caps where applicable. Foreign purchaser surcharges use indicative state rates and are added on top of standard duty. Mortgage registration and transfer-fee figures are indicative only and vary by lodgement method and title structure. The calculator does not replace state revenue office determinations, conveyancer advice or formal lender quotes. Reviewed by the LoanGorilla editorial team — last updated May 2026.