Work out Northern Territory stamp duty on a property from the Territory Revenue Office's formula.
Key facts
- Up to $525,000, NT stamp duty is D = (0.06571441 × V²) + 15V, where V is the value divided by 1,000.
- Above $525,000 it's a flat 4.95% of the whole value, 5.75% from $3,000,000 and 5.95% from $5,000,000.
- Duty is rounded down to the nearest 5 cents.
- On a $500,000 home it's $23,928.60.
- A house and land package bought from a builder can be exempt for contracts signed by 30 June 2027 (house and land package exemption).
NT stamp duty by price
| Dutiable value | Stamp duty | Share of price |
|---|---|---|
| $200,000 | $5,628.55 | 2.81% |
| $300,000 | $10,414.25 | 3.47% |
| $400,000 | $16,514.30 | 4.13% |
| $500,000 | $23,928.60 | 4.79% |
| $525,000 | $25,987.50 | 4.95% |
| $600,000 | $29,700.00 | 4.95% |
| $750,000 | $37,125.00 | 4.95% |
| $1,000,000 | $49,500.00 | 4.95% |
| $3,000,000 | $172,500.00 | 5.75% |
| $5,000,000 | $297,500.00 | 5.95% |
Common questions
How is stamp duty calculated in the NT?
For values up to $525,000: work out V = value ÷ 1,000, then duty = 0.06571441 × V² + 15 × V. Above that, a flat rate of the whole value applies.
How much is stamp duty on a $500,000 house in the NT?
$23,928.60, about 4.79% of the price.
Is there a stamp duty exemption in the NT?
The house and land package exemption applies to a house and land package bought from a building contractor in one transaction, for contracts signed between 1 July 2022 and 30 June 2027. It isn't means tested and has no value cap, but you must live in the home.
See also the stamp duty calculator for every state.
Sources: Territory Revenue Office ready reckoner for stamp duty on conveyances; NT Government house and land package exemption. Checked 22 October 2026. An estimate; the Territory Revenue Office assesses the duty you pay.