Stamp Duty NT 2026: Rates & Calculator
Stamp duty on a $450,000 home in NT is $20,057.00. Calculate yours free — includes first home buyer exemptions and concessions.
Last verified: 1 July 2025Quick Answer
On a $450,000 property in Northern Territory, stamp duty is approximately $20,057.00 — an effective rate of 4.46% (2025-26 rates). First home buyers save $20,057.00.
NT Stamp Duty Rates (2025-26)
| Property Value Range | Rate |
|---|---|
| All values | Formula: V x (0.06571441 x V² + 15) x 0.00001 |
| Cap | Maximum effective rate of 5.95% |
First Home Buyer Concessions — NT
First home buyers in the NT receive the lesser of $18,601 or a 50% discount on stamp duty for properties up to $650,000.
Example: On a $450,000 property, a first home buyer pays $0.00 instead of $20,057.00 — saving $20,057.00.
Example: Stamp Duty on $450,000 in NT
| Property value | $450,000 |
| Stamp duty (standard buyer) | $20,057.00 |
| Effective rate | 4.46% |
| Stamp duty (first home buyer) | $0.00 |
| First home buyer saving | $20,057.00 |
| Total purchase cost (incl. stamp duty) | $470,057.00 |
Based on approximate median property price in Northern Territory. Actual stamp duty depends on contract date and property type.
Stamp Duty in Northern Territory by Property Value
| Property Value | Stamp Duty | FHB Duty | Effective Rate | |
|---|---|---|---|---|
| $350,000 | $13,300.00 | $0.00 | 3.80% | Full breakdown |
| $450,000 | $20,057.00 | $0.00 | 4.46% | Full breakdown |
| $550,000 | $27,225.00 | $0.00 | 4.95% | Full breakdown |
| $650,000 | $32,175.00 | $0.00 | 4.95% | Full breakdown |
| $800,000 | $39,600.00 | — | 4.95% | Full breakdown |
Compare Stamp Duty Across States ($450K Property)
| State | Stamp Duty |
|---|---|
| New South Wales | $14,985.00 |
| Victoria | $22,070.00 |
| Queensland | $14,175.00 |
| Western Australia | $15,390.00 |
| South Australia | $18,830.00 |
| Tasmania | $16,123.00 |
| Australian Capital Territory | $10,813.00 |
| Northern Territory | $20,057.00 |
Calculate Your Stamp Duty
Frequently Asked Questions
How much is stamp duty in Northern Territory?
Stamp duty in Northern Territory depends on the property value. For a $450,000 property, stamp duty is approximately $20,057.00 — an effective rate of 4.46%. Rates are progressive, so higher-value properties attract higher rates.
Do first home buyers pay stamp duty in Northern Territory?
First home buyers in the NT receive the lesser of $18,601 or a 50% discount on stamp duty for properties up to $650,000.
How much do first home buyers save on stamp duty in Northern Territory?
On a $450,000 property, a first home buyer in Northern Territory saves $20,057.00 compared to a standard buyer, paying $0.00 instead of $20,057.00.
Is stamp duty the same as transfer duty?
Yes. Stamp duty and transfer duty refer to the same tax. Some states have officially renamed it to 'transfer duty' but the terms are used interchangeably.
When is stamp duty paid?
Stamp duty is typically paid at settlement or within 3 months of signing the contract of sale, depending on the state. Your conveyancer or solicitor usually handles this.
Can I add stamp duty to my mortgage in Northern Territory?
Some lenders allow you to capitalise stamp duty into your home loan. On a $450,000 property in Northern Territory, that means adding $20,057.00 to your loan balance, which increases your total interest significantly over the life of the loan.
Stamp Duty in Other States
Frequently asked questions
How much stamp duty do first home buyers pay in NSW?
First home buyers in NSW pay no stamp duty on homes up to $800,000, a concessional rate on homes between $800,001 and $1,000,000, and full stamp duty above $1,000,000. The First Home Owner Grant adds $10,000 for new homes up to $600,000. Source: Revenue NSW.
How much stamp duty do first home buyers pay in Victoria?
First home buyers in Victoria pay no stamp duty on homes up to $600,000 and receive a sliding concession on homes between $600,001 and $750,000. A $10,000 First Home Owner Grant applies on new homes up to $750,000. Source: State Revenue Office Victoria.
Do foreign buyers pay extra stamp duty in Australia?
Yes. Foreign buyer surcharges apply in most states: 8% in NSW and Victoria, 7% in Queensland, Western Australia, and South Australia. These are additional to the standard stamp duty and First Home Buyer concessions do not apply to foreign buyers.
Is stamp duty payable on off-the-plan purchases?
Off-the-plan concessions vary by state. Victoria removed the concession in 2017 for owner-occupiers. NSW retained an off-the-plan concession for principal places of residence under certain thresholds. Always check the current rules with the relevant state revenue office.
General information and estimates only — not financial, tax, or legal advice. Always verify with a licensed adviser or the ATO.
Related reading
$31,335 on a $800K home, but first home buyers pay $0 under $800K. Full NSW stamp duty rates, exemptions, and calculator for 2025-26.
Stamp Duty in Queensland 2025-26: Rates, Thresholds & Exemptions$21,850 on a $700K QLD property. First home buyers get concessions up to $550K. Full transfer duty rates, thresholds, and foreign buyer surcharges.
NSW Stamp Duty 2026: $31,335 on $800K (First Home Buyers: $0)An $800K property costs $31,335 in NSW stamp duty in 2026 — but first home buyers pay $0 under $800K. See the exact figure for any price plus FHB exemption thresholds.
Stamp Duty in Victoria 2025-26: Rates, Concessions & Changes$44,000+ on a $800K VIC property. First home buyers save up to $33,250 on homes under $600K. Full Victorian stamp duty rates and concessions.