Rates current as at 2026-08-03
NT Stamp Duty Calculator
On a $500,000 NT purchase, stamp duty is $23,928.60 from the statutory curve; from $525,000 it becomes a flat 4.95% of the whole value. Eligible new house-and-land packages pay zero duty under the HLPE until 30 June 2027.
- Rates verified
- 2026-08-03
- Source
- Territory Revenue Office
- Scales
- 2 buyer types
Your purchase
Buyer type
The House and Land Package Exemption gives 100% duty relief on a new detached home built under a single contract with a registered building contractor - no value cap and no means test, for contracts to 30 June 2027, with a 12-month move-in requirement. First home buyers of established homes get no duty relief, but the $50,000 HomeGrown Territory Grant applies to new homes.
Transfer duty payable - all buyers (one scale)
$27,225
All buyers (one scale)
$27,225
New house & land package (HLPE)
$0
Duty is one line of the deal. The full audit puts it alongside finance, holding costs and the tax treatment that applies after 12 May 2026.
Deal Auditor - in build, not yet available
Calculated from the published Territory Revenue Office scales (source). Rules and thresholds change - confirm exact figures and eligibility with the Territory Revenue Office calculator or your conveyancer. General information only.
How NT duty works
The NT is the only jurisdiction that computes duty from a quadratic formula: below $525,000, duty equals 0.06571441 V squared plus 15 V with V in thousands of dollars, producing a smooth curve rather than brackets. From $525,000 the Territory switches to flat percentages of the entire value - 4.95% across the typical residential range. There is no investor loading, no owner-occupier scale, and uniquely, no foreign buyer surcharge and no land tax.
The lever that matters is the House and Land Package Exemption: an eligible new build under a single builder contract pays zero duty at any price until mid-2027, and first home buyers stack the $50,000 HomeGrown grant on top. An established purchase gets neither - a gap the new-vs-established comparison and the Deal Auditor can price exactly.
The NT rate scale
| Dutiable value | Duty |
|---|---|
| Up to $525,000 | Statutory curve: D = 0.06571441 x V² + 15 x V, where V is the value in $1,000s |
| $525,000 - $3,000,000 | 4.95% of the entire dutiable value |
| $3,000,000 - $5,000,000 | 5.75% of the entire dutiable value |
| Over $5,000,000 | 5.95% of the entire dutiable value |
The exact Stamp Duty Act 1978 formula - the flat bands apply to the whole value, not just the excess, which is why the NT bill jumps at $525,000.
Stamp duty is the only property tax on the way in - and in the Territory there is nothing on the way through either: the NT has no land tax, the only Australian jurisdiction without one.
Frequently asked questions
How is stamp duty calculated in the NT?
Below $525,000 the NT uses a statutory formula - duty = 0.06571441 V squared plus 15 V, where V is the value in thousands - which works out to about $16,514 on a $400,000 purchase. From $525,000 to $3 million duty is a flat 4.95% of the whole value, then 5.75% to $5 million and 5.95% above.
Who pays no stamp duty in the NT?
Buyers of an eligible new house-and-land package: the House and Land Package Exemption gives 100% duty relief with no price cap and no means test for contracts to 30 June 2027, provided one buyer moves in within 12 months. There is currently no duty relief for buying an established home, first home or not.
What grants exist for NT home buyers?
The HomeGrown Territory Grant pays $50,000 to first home buyers building or buying a new home (no price cap, contracts to 30 September 2027), and FreshStart pays $30,000 to existing owners building new. These are cash grants on top of the duty exemption, not duty concessions.
Are these figures official?
They use the exact formula and flat rates from Schedule 1 of the Stamp Duty Act 1978, and match the Territory Revenue Office calculator to the cent, including its rounding down to the nearest 5 cents. Confirm eligibility for exemptions with the TRO or your conveyancer.