Can I claim the zone tax offset if I live in Darwin?
Yes. If Darwin (or anywhere in the Northern Territory) has been your usual home for more than 183 days of the income year, you can claim the zone tax offset: $338 for Zone A, which covers Darwin, or $1,173 if you live in a designated special area. It is claimed at Item T4 in your tax return.
How the zone tax offset works
The Northern Territory sits in Zone A on the ATO's Australian zone list. The offset recognises the higher cost of living and isolation of remote Australia, and it reduces your tax payable dollar for dollar.
The base amounts for 2025-26 are:
| Where your usual home is | Base offset |
|---|---|
| Zone A (includes Darwin, Palmerston, Katherine) | $338 |
| Zone B | $57 |
| Special area (very remote locations) | $1,173 |
If you maintain certain dependants, such as an invalid or invalid carer offset recipient, a loading applies on top of the base amount: 50% of the relevant dependant offset for Zone A and special areas. For most wage and salary earners without eligible dependants, the claim is simply the base amount.
You can check any town against the official list here: ATO Australian zone list.
The 183-day test: it is about where you live, not where you work
To claim the full offset, your usual place of residence must be in the zone for more than 183 days in the income year. The days do not need to be continuous.
Two groups get caught out:
FIFO workers. If you fly in to an NT site but your family home is in Brisbane or Perth, your usual place of residence is not in the zone and you cannot claim, no matter how many days you worked here. This rule has applied since 1 July 2015.
People who moved to Darwin partway through the year. If you relocated from Sydney, Melbourne or anywhere outside a zone and did not reach 183 days before 30 June, you may still qualify. The rules let you combine days across two income years in some circumstances, so the days you fall short this year can complete a claim next year. This one is easy to get wrong in both directions, so it is worth having checked properly.
A worked example
Priya moved from Melbourne to Rapid Creek on 10 October 2025 for a nursing role at Royal Darwin Hospital. From 10 October 2025 to 30 June 2026 is 264 days, so Darwin was her usual home for more than 183 days of the 2025-26 year. Priya claims the $338 Zone A offset at Item T4. If she had arrived in February, she would fall short this year but could combine her days with next year to claim then.
What we check before lodging
Every return we prepare at num.tax is audited before it goes to the ATO. On zone claims we confirm three things: that your usual place of residence, not just your work site, was in the zone; that the day count actually clears 183, especially in a year you moved; and whether a special area amount or dependant loading applies, because leaving $835 on the table is as bad as over-claiming. Zone offsets are one of the most common items we find missed on self-prepared Darwin returns.
Frequently asked questions
Not in this year's return on its own, because you will not reach 183 days by 30 June. But keep your records: your days can combine with next year's to support a claim in your next return.
Principal, Numio Accountants | Registered Tax Agent 26342345 | Darwin, NT
Moved to the Territory this year? Start your return with num.tax and we will make sure the zone offset, and everything else Darwin-specific, is in it.