Stamp duty in the Northern Territory — 2026 rates
Rates calculated from Territory Revenue Office data, stored in GetReal's Supabase database. Updated when official rates change. Last built: 2026-08-07.
Stamp duty in the Northern Territory uses a quadratic formula rather than the progressive bracket system used by other states. For purchases up to $525,000, duty is calculated as: D = (0.06571441 × V² + 15 × V) ÷ 1000, where V = purchase price ÷ 1000. Above $525,000, a flat 4.95% rate applies. First home buyers receive an $18,601 rebate, which phases out between $500,000 and $650,000.
Key points
- The NT is the only jurisdiction that uses a formula rather than bracket tables.
- First home buyers receive an $18,601 rebate (paid back after duty is assessed, not an upfront exemption).
- The flat 4.95% rate above $525,000 makes NT one of the more expensive jurisdictions for higher-value purchases.
- NT property prices are generally lower than most mainland capital cities.
Stamp duty by purchase price — NT 2026
| Purchase price | Standard duty | FHB duty | Investor duty (same rate as owner-occupier in this state) |
|---|---|---|---|
| $400,000 | $16,514 | $0$18,601 FHB rebate | $16,514 |
| $500,000 | $23,929 | $5,328$18,601 FHB rebate | $23,929 |
| $600,000 | $29,700 | $23,500partial FHB rebate | $29,700 |
| $700,000 | $34,650 | $34,650 | $34,650 |
| $750,000 | $37,125 | $37,125 | $37,125 |
| $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 |
| $2,000,000 | $99,000 | $99,000 | $99,000 |
Government registration fees
In addition to stamp duty, buyers pay registration fees to the land titles office to record the title transfer and mortgage. Two fees apply: a title transfer registration fee and a mortgage registration fee. GetReal's calculator includes both.
For a $750,000 purchase in this state: approximately $181 in registration fees, on top of stamp duty. This brings the total government upfront cost to around $37,306 for a standard buyer at that price.
Calculate stamp duty and government fees for your exact purchase price
Open stamp duty calculatorFrequently asked questions
Why does the NT use a formula?
The NT formula produces a smooth, continuous curve rather than the step-function of bracket tables. In practice the results are similar — it's a different mathematical expression of a progressive rate.
What is the NT first home buyer rebate?
Eligible first home buyers receive an $18,601 rebate. It's a rebate — you pay duty first, then receive the rebate. It phases out linearly between $500,000 and $650,000, and does not apply above $650,000.
When is stamp duty due in the NT?
Within 60 days of the transaction date.
Stamp duty rates are sourced from official government data and stored in GetReal's database. This page is rebuilt whenever rates change. See methodology for calculation details. This is not financial advice — confirm with your conveyancer or the relevant state revenue authority.