NT stamp duty calculator
Enter a price and see the stamp duty you will owe in Northern Territory, including first home buyer relief. Nothing you type is sent anywhere.
Use the contract price, or the market value if that is higher.
NT stamp duty — 2026-27
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How stamp duty works in Northern Territory
The Northern Territory is the odd one out. Instead of brackets, homes under $525,000 use a formula: D = (0.06571441 × V²) + 15V, where V is the price divided by 1,000. Above $525,000 it becomes a simple flat percentage of the whole price.
Duty is marginal, the same way income tax is. You do not pay one rate on the whole price. Each slice of the price is taxed at its own rate, and the results are added together. That is why the effective rate you pay is always lower than the top bracket you land in.
First home buyers in NT: No first home buyer duty relief applies in NT for 2026-27. Support available: House and Land Package exemption, plus a $50,000 grant for new builds. Read the full rules on the NT first home buyer page.
NT stamp duty rates for 2026-27
| Property value | How duty is worked out |
|---|---|
| Up to $525,000 | (0.06571441 × V²) + 15V, where V = price ÷ 1,000 |
| $525,001 to $3,000,000 | 4.95% of the whole price |
| $3,000,001 to $5,000,000 | 5.75% of the whole price |
| Over $5,000,000 | 5.95% of the whole price |
Above $525,000 a flat 4.95% applies, rising to 5.75% above $3 million and 5.95% above $5 million.
What you would pay at common prices
These figures use the 2026-27 rates above for an existing home bought by an Australian resident. Your own figure can differ if a concession applies.
| Purchase price | Owner-occupier | Investor | First home buyer |
|---|---|---|---|
| $400,000 | $16,514 | $16,514 | $16,514 |
| $500,000 | $23,929 | $23,929 | $23,929 |
| $600,000 | $29,700 | $29,700 | $29,700 |
| $700,000 | $34,650 | $34,650 | $34,650 |
| $800,000 | $39,600 | $39,600 | $39,600 |
| $900,000 | $44,550 | $44,550 | $44,550 |
| $1,000,000 | $49,500 | $49,500 | $49,500 |
| $1,200,000 | $59,400 | $59,400 | $59,400 |
| $1,500,000 | $74,250 | $74,250 | $74,250 |
Costs people forget to budget for
Stamp duty is the biggest government cost, but it is not the only one. On a $600,000 purchase in NT you would also plan for roughly $160 in transfer and mortgage registration fees, plus:
- Conveyancing or legal fees — usually $1,000 to $2,500.
- Building and pest inspection — around $400 to $800 for a house.
- Lenders mortgage insurance — if your deposit is under 20%, this can run to tens of thousands.
- Council and water adjustments — you repay the seller for rates they have already paid.
A rough rule: for a $600,000 home in NT, set aside about $29,860 for government costs alone, then add professional fees on top.
Common questions
How much is stamp duty on a $600,000 property in NT?
About $29,700 for an owner-occupier buying an existing home at 2026-27 rates. A first home buyer would pay $29,700 at that price. Registration fees of roughly $160 are on top.
When do I pay stamp duty in NT?
Duty is usually paid at settlement, and your conveyancer or solicitor arranges it. Your lender will not release the loan until it is sorted, so budget for it as a cash cost alongside your deposit. Confirm the exact deadline with Territory Revenue Office, because it differs by state.
Can I add stamp duty to my home loan?
Usually not directly. Stamp duty is an upfront cost that most lenders expect you to pay from your own savings, because it is not part of the property's value. Some buyers borrow more against a larger deposit to cover it, but that depends on the lender and your loan-to-value ratio.
Do I pay duty on the price or the valuation?
You pay on whichever is higher, the price you agreed or the market value of the property. This stops people from cutting the tax by selling to family below market rates.
Is there a foreign buyer surcharge in NT?
No. Northern Territory does not charge a foreign buyer duty surcharge, which makes it unusual in Australia. Other property taxes may still apply.
Check another state
- NSW stamp duty
New South Wales
- VIC stamp duty
Victoria
- QLD stamp duty
Queensland
- WA stamp duty
Western Australia
- SA stamp duty
South Australia
- TAS stamp duty
Tasmania
- ACT stamp duty
Australian Capital Territory
Source: Territory Revenue Office — official stamp duty rates. Rates checked 28 July 2026. This calculator gives an estimate only and is not financial or legal advice. Confirm the amount payable with Territory Revenue Office or your conveyancer.