How stamp duty works in Northern Territory
Stamp duty — known as transfer duty in some jurisdictions — is a state-levied tax on property purchases. NT duty is administered by Territory Revenue Office and calculated on the dutiable value of the property using progressive marginal rates.
The Territory Revenue Office calculates conveyance duty with a formula for homes under $525,000, then flat rates on the whole value above that:
| Dutiable value | Duty payable |
|---|---|
| Under $525,000 | D = (0.06571441 × V²) + 15V, where V = value ÷ 1,000 |
| $525,000 – $3,000,000 | 4.95% of the entire value |
| $3,000,000 – $5,000,000 | 5.75% of the entire value |
| Over $5,000,000 | 5.95% of the entire value |
The NT has no first-home-buyer duty concession (assistance is via cash grants) and no foreign buyer surcharge. Enter your exact price into the calculator above for the precise figure.
Worked example
On a $500,000 home (under the $525,000 formula threshold), duty uses the quadratic formula with V = 500:
| Dutiable value | $500,000 |
| V = value ÷ 1,000 | 500 |
| 0.06571441 × V² | $16,428.60 |
| 15 × V | $7,500 |
| Conveyance duty | $23,929 |
| Title transfer + mortgage registration | $330 |
| Total government charges | $24,259 |
At exactly $525,000 the formula gives way to the flat 4.95% rate ($25,988). There is no foreign buyer surcharge in the NT.
Key NT rules
- Duty below $525,000 follows a formula; at and above, flat rates apply to the whole value.
- No general first-home buyer duty concession — assistance is via cash grants.
- No foreign buyer surcharge applies in the NT.
- Senior, pensioner and carer concessions may be available subject to eligibility.
First home buyer concessions
The NT has no general first-home stamp-duty concession; first-home assistance is delivered through cash grants (e.g. HomeGrown Territory / BuildBonus), not duty relief.
Foreign buyer surcharge
NT does not currently impose a specific foreign buyer surcharge. Always verify with Territory Revenue Office before transacting.
Official NT resources
Territory Revenue Office — transfer duty page
Frequently asked questions
How is stamp duty calculated in Northern Territory?
Stamp duty (transfer duty) in NT is calculated on a sliding scale against the dutiable value of the property — usually the contract price or market value, whichever is higher. Use the calculator above to estimate the duty payable for your purchase scenario.
What first home buyer concessions are available in NT?
The NT has no general first-home stamp-duty concession; first-home assistance is delivered through cash grants (e.g. HomeGrown Territory / BuildBonus), not duty relief.
Is there a foreign buyer surcharge in NT?
NT does not currently impose a specific foreign buyer surcharge. Always confirm the latest position with Territory Revenue Office before signing a contract.
Where can I confirm the official NT stamp duty rates?
Stamp duty rates and concession thresholds are published by Territory Revenue Office. The calculator on this page is an estimate only — confirm exact figures with the revenue office or your conveyancer before settlement.