Stamp Duty NT — Rates, Calculator and Concessions (2026)
The Northern Territory levies stamp duty on property transfers. The NT uses a formula-based calculation that results in some of the highest effective duty rates in the country for mid-range properties. However, the Territory Home Owner Discount provides a full duty exemption for eligible buyers purchasing properties up to $500,000 — covering many Darwin properties.
NT Stamp Duty — Formula-Based Calculation
The NT uses a mathematical formula rather than simple bracket tables:
NT stamp duty formula:
For properties valued at or below $525,000:
Duty = (0.06571441 × V) + 15 × V / 1000 where V = dutiable value in dollars
For properties valued between $525,001 and $3,000,000:
Duty = 4.95% of the dutiable value
For properties above $3,000,000:
Duty = 5.75% of the dutiable value (approximate — verify with NT Revenue)
The formula approach is unusual by Australian standards. Always verify using the NT Revenue Office calculator.
NT Stamp Duty at Key Price Points
| Purchase Price | Approximate Duty |
|---|---|
| $200,000 | ~$6,430 |
| $300,000 | ~$14,214 |
| $400,000 | ~$22,286 |
| $500,000 | ~$30,357 |
| $600,000 | ~$29,700 |
| $700,000 | ~$34,650 |
| $800,000 | ~$39,600 |
| $1,000,000 | ~$49,500 |
Note: The formula produces higher rates at lower price points. At $500,000, NT duty is notably high compared to most states. The Territory Home Owner Discount covers most of this for eligible buyers.
Always use the NT Revenue calculator for exact figures: nt.gov.au
How to Calculate NT Stamp Duty — Worked Example
Purchase price: $450,000 (below $525,000 threshold)
Formula: Duty = (0.06571441 × $450,000) + (15 × $450,000 / 1,000) = $29,571 + $6,750 = approximately $26,286
Note: These figures are approximate — use the NT Revenue Office online calculator for exact amounts.
Territory Home Owner Discount (THOD)
The Territory Home Owner Discount provides a full exemption from stamp duty for eligible buyers purchasing properties up to $500,000.
Eligibility:
- Must be an individual (natural person) — not a company or trust
- Must occupy the property as principal place of residence within 12 months
- Must not already own residential property in the NT
- Property must be valued at $500,000 or less
| Purchase Price | Without THOD | With THOD | THOD Saving |
|---|---|---|---|
| $300,000 | ~$14,214 | $0 | ~$14,214 |
| $400,000 | ~$22,286 | $0 | ~$22,286 |
| $500,000 | ~$30,357 | $0 | ~$30,357 |
| $600,000 | ~$29,700 | Full duty | — |
Above $500,000: Full standard duty applies. Note that the threshold has not kept pace with Darwin property prices, and many properties now exceed $500,000.
NT FHOG — First Home Owner Grant
First home buyers purchasing a new home in the NT may also be eligible for the $10,000 First Home Owner Grant.
Combined with the Territory Home Owner Discount, this can significantly reduce the upfront cost of buying a new home in Darwin.
Darwin Property Market Context
Darwin’s median house price is significantly lower than Sydney, Melbourne or Brisbane — but NT stamp duty rates are among the highest in Australia at most price points. The Territory Home Owner Discount provides critical relief for buyers under $500,000, which covers a meaningful portion of the Darwin market.
For investors purchasing above $500,000, NT stamp duty is notably expensive relative to property values.
NT Stamp Duty on Vacant Land
Duty applies to vacant land transfers at the same formula rates. The Territory Home Owner Discount may apply if you are purchasing land to build your principal residence and other eligibility conditions are met.
When Is NT Stamp Duty Due?
- Duty must be paid within 60 days of settlement (or execution of the instrument)
- Your solicitor or conveyancer manages lodgement with NT Revenue via the Land Titles Office
- Electronic settlement via PEXA is available for NT conveyances
Frequently Asked Questions
How much is stamp duty in the Northern Territory? The NT uses a formula-based calculation. On a $500,000 property, approximate duty is $26,000–$30,000. The Territory Home Owner Discount provides full exemption for eligible buyers under $500,000.
What is the Territory Home Owner Discount? A full stamp duty exemption for eligible buyers purchasing NT property under $500,000 as their principal place of residence. Not limited to first home buyers — requires that you do not currently own NT residential property.
Is NT stamp duty the most expensive in Australia? At many price points, the NT formula produces some of the highest effective duty rates in the country. The THOD helps offset this for properties under $500,000.
Does the THOD apply to established homes in the NT? Yes — the Territory Home Owner Discount applies to both new and established homes under $500,000, subject to eligibility conditions.
Related Guides
- Stamp Duty Calculator Australia
- Stamp Duty Australia — All States
- How to Reduce Stamp Duty
- Stamp Duty Comparison Table
- Stamp Duty Hub
This article provides general information about Northern Territory stamp duty. Rates, formulas and concession conditions are set by the NT government and change regularly. Always verify with NT Revenue (nt.gov.au) or your solicitor before purchasing. For advice tailored to your situation, speak with a licensed mortgage broker or financial adviser. Find one through MoneySmart.