OzStampDutyCalc

NT stamp duty

Northern Territory Stamp Duty Calculator

The Northern Territory works out stamp duty with a formula rather than bands, administered by the Territory Revenue Office. The current formula has applied to contracts since 1 July 2017.

Rules from Territory Revenue Office, last reviewed 7 November 2026.

  • Formula-based duty up to $525,000
  • Flat 4.95% of the whole value from $525,000 to $3 million
  • No foreign purchaser surcharge
  • Home buyer help is mainly through grants and specific exemptions

All fields are needed for an accurate estimate. Nothing you enter leaves your browser.

The price or market value, whichever is higher, in whole dollars.

How will you use it?
Are you a first home buyer?

Relief depends on eligibility rules we list with your result. Answering yes doesn't guarantee it.

Is any buyer a foreign person?

Generally someone who is not an Australian citizen or permanent resident. Each state defines it slightly differently.

The date contracts are exchanged decides which rules apply.

Estimated government duty · Northern Territory

$ —

Enter a price to see your estimate.

  1. 1Choose the state and enter the price.
  2. 2Tell us about the property and the buyers.
  3. 3See the duty, any concessions and the total, with sources.

Official sources

Estimates only. OzStampDutyCalc is not affiliated with any government agency and does not give financial, legal or tax advice. Duty is assessed by your state or territory revenue office, so confirm your figures with them or a conveyancer before you rely on them.

How stamp duty works in Northern Territory

For values up to $525,000, duty is (0.06571441 × V²) + 15V, where V is the value divided by 1,000. Above $525,000 a flat rate applies to the whole value: 4.95% below $3 million, 5.75% from $3 million to under $5 million, and 5.95% from $5 million. The official calculator rounds the result down to the nearest 5 cents.

First home buyers in NT

The Northern Territory has no general first home buyer stamp duty concession in our calculator. The NT Government offers home buyer grants and a house and land package exemption, each with its own conditions and dates. Check them with the Territory Revenue Office before you rely on any estimate.

Concessions and exemptions

House and land package exemption

Has its own eligibility conditions. Not included in our estimate.

Foreign purchasers

The Northern Territory does not charge a foreign purchaser surcharge on stamp duty.

Worked examples

Calculated with the same rules as the calculator above.

Home at $500,000

$500,000 · Established home · to live in

Stamp duty
$23,928.60
Total duty
$23,928.60

Contract dated 7 November 2026. Assumes every eligibility condition is met.

Home at $600,000

$600,000 · Established home · to live in

Stamp duty
$29,700
Total duty
$29,700

Contract dated 7 November 2026. Assumes every eligibility condition is met.

Investment at $350,000

$350,000 · Established home · investment

Stamp duty
$13,300
Total duty
$13,300

Contract dated 7 November 2026. Assumes every eligibility condition is met.

NT stamp duty questions

Why does the NT jump to a flat rate above $525,000?

Above $525,000 the formula stops and a flat percentage applies to the whole value. That is why duty rises sharply just above that amount.

Compare other states