Stamp duty calculator
Northern Territory NT

The Northern Territory uses a unique stamp duty formula based on the square of the property value, making the rate structure different to other states. Darwin's property market is smaller and more volatile than the major capitals.

On $500,000

$18,143
Stamp duty payable

On $700,000

$26,960
Stamp duty payable

On $1,000,000

$39,460
Stamp duty payable
These are approximate figures based on NT state revenue office rates as of early 2026. Use the full calculator for an exact figure including transfer fees and conveyancing estimates.

Get an exact figure for your purchase price — including first home buyer concessions

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First home buyer concession available

NT first home buyers receive a 50% stamp duty concession on homes up to $650,000. The $10,000 First Home Owner Grant applies to new homes. Darwin property prices are generally lower than capital cities on the east coast.

First Home Owner Grant

$10,000
for new homes
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Stamp duty rates in Northern Territory

The NT's stamp duty formula (approximately 0.06571441 × V² / 1,000,000 + 0.01 × V + 15) means the effective rate changes non-linearly with price. The 50% FHB concession on homes under $650,000 is one of the more straightforward concession schemes in Australia.

Purchase priceStamp dutyAs % of price
$400,000$13,0633.3%
$500,000$18,1433.6%
$600,000$21,0293.5%
$700,000$26,9603.9%
$800,000$32,8914.1%
$1,000,000$39,4603.9%
$1,500,000$65,1094.3%

Other upfront costs to budget for

Stamp duty is the largest upfront cost but not the only one. Budget for these additional items on top of your deposit and stamp duty:

Conveyancing / legal fees

$1,500–$2,500
Varies by complexity and state

Building and pest inspection

$400–$800
Strongly recommended before purchase

Lenders mortgage insurance (LMI)

$5,000–$25,000+
Only if deposit is under 20%

Transfer / registration fee

$1,000–$4,000
Paid to state government on settlement

Frequently asked questions

How much is stamp duty in Northern Territory on a $700,000 property?

Stamp duty on a $700,000 property in Northern Territory is approximately $26,960. Use the calculator above for an exact figure based on your purchase price and buyer status.

Do first home buyers pay stamp duty in NT?

NT first home buyers receive a 50% stamp duty concession on homes up to $650,000. The $10,000 First Home Owner Grant applies to new homes. Darwin property prices are generally lower than capital cities on the east coast.

When do you pay stamp duty in NT?

Stamp duty is payable on settlement day — the day you take legal ownership of the property. Your conveyancer will calculate the exact amount and arrange payment as part of the settlement process. You need to have the funds available by settlement.

Can stamp duty be added to my mortgage?

No — stamp duty cannot be added to your home loan. It must be paid upfront at settlement from your own funds. This is why stamp duty is a critical part of your upfront cost budget alongside your deposit.

Is stamp duty tax deductible?

For owner-occupiers, stamp duty is not tax deductible. For investment properties, stamp duty forms part of the cost base of the asset and may reduce capital gains tax when you sell, but it is not deductible in the year of purchase. Always confirm with your accountant.

Stamp duty in other states

Important: Stamp duty rates and thresholds change frequently. Figures are based on NT state revenue office rates as of early 2026 and are estimates only. First home buyer eligibility has specific conditions — always verify with your state revenue office or conveyancer before settlement. This is not financial or legal advice.