Calculators · Stamp duty calculator
calculators_stamp_dutyStamp duty (transfer duty) on a residential purchase in any state or territory, with every step shown: the general-rate duty, each concession or exemption that applies, and the foreign purchaser surcharge.
Who pays it: the buyer, once, at settlement (or within the state's deadline after it). It is usually the biggest up-front cost after the deposit, and it varies widely with the buyer: the same home can cost a first home buyer nothing under a state's exemption cap and a foreign buyer several times the ordinary amount.
What it covers: the general scale; owner-occupier / home concessions;
first home buyer exemptions and concessions for established homes, new homes
and vacant land; off-the-plan, pensioner and income-tested schemes where a
state has them; and the foreign purchaser surcharge. Rates are those in force
on contract_date — each answer names the rates table version and the dates
it applies.
Caveats: an estimate for planning, not a duty assessment. It assumes one
buyer (or all buyers alike) and a home, not commercial or primary-production
land. Mortgage and transfer registration fees are separate and not included.
Each response lists what it assumed in caveats. For first home buyers,
/calculators/first-home sets the duty saving next to the grants.
Price: 1¢ per call.
Tool call template
Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.
{
"id": 1,
"jsonrpc": "2.0",
"method": "tools/call",
"params": {
"arguments": {
"state": "<state>",
"price": "<price>"
},
"name": "calculators_stamp_duty"
}
}Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| price | Yes | Purchase price (or market value, if higher) in dollars. | |
| state | Yes | State or territory: NSW, VIC, QLD, WA, SA, TAS, ACT, NT. | |
| regional | No | Outside the capital city (WA: outside Perth and Peel; also the WA grant's northern cap). Ignored where a state draws no such line. | |
| pensioner | No | Holds an eligible pension or concession card. Changes the answer only where a state has a pensioner concession. | |
| buyer_type | No | `first_home` (first home buyer who will live in it), `owner_occupier` (will live in it, not a first home), `investor`, or `foreign` (a foreign person under state law — surcharge duty applies, no home concessions). | owner_occupier |
| dependants | No | Dependent children — raises an income-tested scheme's limit (ACT). | |
| off_the_plan | No | Bought off the plan. Changes the answer only where a state has an off-the-plan concession. | |
| contract_date | No | Contract date (YYYY-MM-DD); picks the rates in force on that day. Default: today in Sydney. | |
| property_type | No | `established` (an existing home), `new` (a new home or off-the-plan, never lived in), or `vacant_land` (land to build a home on). | established |
| household_income | No | Gross household income for the past year — used by income-tested schemes (ACT). Omit and we assume you meet the income test. |