NT stamp duty calculator
Your details
Calculator assumptions
Rates are for contracts signed in the 2026–27 financial year and assume you buy as an individual, at market value, with no other concessions (such as pensioner, off-the-plan or disability concessions).
First home buyer results assume you meet your state’s eligibility rules, including living in the home for the required time. Foreign buyer surcharges are shown at the full rate.
This is an estimate, not tax or credit advice. Your conveyancer will confirm the exact amount before settlement.
Your estimate
Estimated stamp duty in NT
$27,225General rates applied.- Duty before any concessions
- $27,225
- Effective rate
- 4.95%
- 20% deposit plus stamp duty
- $137,225
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How stamp duty works in NT
The Territory Revenue Office collects stamp duty in the NT. It applies to the higher of the price and the market value.
The NT doesn’t use brackets like other states. Up to $525,000 duty comes from a formula that rises smoothly with the price. Above that, you pay a flat percentage of the whole price: 4.95% up to $3 million. On a $500,000 home, duty is $23,929. At $600,000, it’s $29,700.
There’s no first home buyer discount on established homes. The NT’s help goes to people buying or building new.
NT stamp duty rates 2026–27
| Property value | Duty payable |
|---|---|
| Up to $525,000 | (0.06571441 × V²) + 15V, where V is the value ÷ 1,000 |
| $525,001 to $2,999,999 | 4.95% of the total value |
| $3,000,000 to $4,999,999 | 5.75% of the total value |
| Over $4,999,999 | 5.95% of the total value |
Rates. Source: Territory Revenue Office.
First home buyers in the NT
House and land packages: no duty
If you buy a new detached house and land package from a builder and live in it, you pay no stamp duty. It applies to contracts signed by 30 June 2027 and isn’t limited to first home buyers.
$50,000 HomeGrown Territory grant
First home buyers buying or building a new home can get a $50,000 grant, for contracts up to 30 September 2027.
Established homes: full duty
There’s no duty concession for first home buyers on existing homes. On a $450,000 home that’s $20,057.
Who qualifies for the exemption
Buyers must be individuals, at least one must be a citizen or permanent resident, and someone must live there for 6 months, starting within 12 months of possession. Duplexes and townhouses don’t qualify.
What you’d pay: worked examples
Calculated with the same rates as the calculator above, for contracts signed in 2026–27.
Other things that change your stamp duty
Foreign buyers
The NT doesn’t charge a foreign buyer surcharge on stamp duty.
Watch the $525,000 line
Above $525,000, the rate applies to the whole price, so a small increase in price can mean a big jump in duty.
When it’s due
Stamp duty is generally due within 60 days of signing the contract, and is usually paid at settlement.
Frequently asked questions
Get in touchDo first home buyers pay stamp duty in the NT?
On an established home, yes. On a new house and land package you’ll live in, no. First home buyers of new homes can also get the $50,000 HomeGrown Territory grant.
How is stamp duty calculated in the NT?
Up to $525,000 it’s a formula: (0.06571441 × V²) + 15V, where V is the price divided by 1,000. Above $525,000, it’s a flat 4.95% of the whole price, rising to 5.75% from $3 million.
How much is stamp duty on a $500,000 home in Darwin?
It’s $23,929.
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