The 183-day rule for digital nomads
183 days comes up in almost every conversation about nomad taxes. It matters, but it isn't one universal rule: each country decides how, and over what period, the days are counted.
Updated 28 September 2026
This isn't tax advice. Tax residency depends on your nationality, your home country's rules, any tax treaty and your personal circumstances. Use this guide to understand the vocabulary, and a tax professional for decisions.
What "the 183-day rule" means
183 days is just over half a year, and many countries use "more than half the year" as one way to decide whether you're tax resident. Spend 183 days or more in a country and you may be treated as resident there for tax, with its tax rules applying to you.
For digital nomads this matters in two directions: you don't want to become tax resident somewhere by accident, and you may want to show that you weren't. Either way, an accurate count of your days in each country is the starting point.
It's not one universal rule
There's no global 183-day law. Each country writes its own residency tests, and three things vary a lot: the period the days are counted over, what counts as a day, and which other tests apply as well. Three examples show how different they are.
United Kingdom: the Statutory Residence Test
- You're automatically UK resident if you "spent 183 or more days in the UK in the tax year", which runs from 6 April to 5 April.
- A day counts if you're in the UK "at the end of the day (midnight)", with a deeming rule and exceptions for transit and exceptional circumstances.
- It works the other way too: you're usually non-resident if you spent fewer than 16 days in the UK (or 46 if you haven't been resident in the previous three tax years), and there are further tests for everyone in between.
Australia: the 183-day test
- You're a resident if you're in Australia for more than half the income year, continuously or intermittently, unless your usual place of abode is outside Australia and you have no intention of taking up residence.
- The income year runs from 1 July to 30 June, not the calendar year.
- It's one of several tests. Under the domicile test, you're resident if your domicile is in Australia, unless your permanent place of abode is outside Australia. The ATO says you wouldn't be considered to have a permanent place of abode overseas if you have no fixed or habitual place of abode there and move from one country to another: a point worth knowing for Australian nomads.
United States: the substantial presence test
- You meet it if you were in the US for at least 31 days in the current year and 183 days over three years, counting:
- all the days in the current year
- one third of the days in the year before
- one sixth of the days in the year before that
- Some days don't count, such as days in transit of less than 24 hours between two places outside the US.
Tax treaties: two more 183s
Many countries' tax treaties follow the OECD Model Tax Convention, which uses 183 days differently again:
- Employment income (Article 15): pay for work done in another country can stay taxable only at home if, among other conditions, you're there for no more than "183 days in any twelve month period commencing or ending in the fiscal year concerned". That's any twelve months, not a calendar year.
- Tie-breakers (Article 4): if two countries both consider you resident, the treaty decides using, in order, where you have a permanent home, your centre of vital interests, your habitual abode, then your nationality. Days matter, but they aren't the whole picture.
Counting periods at a glance
| Period | Example | What to count |
|---|---|---|
| Calendar year | Countries whose tax year is the calendar year | Days from 1 January to 31 December |
| Tax or income year | UK (6 April to 5 April), Australia (1 July to 30 June) | Days in that country's tax year |
| Any twelve months | OECD model treaty, Article 15 | Days in every rolling twelve-month period |
| Weighted over three years | US substantial presence test | This year's days plus a third and a sixth of the previous two years' |
Partial days
Whether an arrival or departure day counts depends on the rule. The UK counts where you are at midnight; other rules count any part of a day. If you move often, the difference adds up: a month of short hops can mean several days' gap between two methods. When in doubt, count the higher number, and keep a record detailed enough to recount by any method.
Days aren't the only test
Staying under 183 days everywhere doesn't automatically make you non-resident everywhere. Tests like Australia's domicile test, the UK's other residence tests and treaty tie-breakers look at your home, your ties and your intentions. A clear day count helps with all of them, but it's evidence, not the answer.
How to keep count with Visa365
Visa365 logs the country you're in each day automatically, so the count builds itself while you travel. For tax residency you can:
- add a days-per-year limit, such as 183 days, with the year start you choose, such as 6 April for the UK tax year or 1 July for Australia's income year
- or add a rolling window, such as 183 days in any 365, for a "any twelve months" style rule
- get alerts at the days-left counts you choose as you get close
- edit any day on the Timeline and add past stays, so your count is right from day one
- export your travel history as a PDF or spreadsheet (CSV) with every day and country listed, ready for your adviser
Visa365 counts any part of a day as a full day and a travel day for both countries. It counts plain days; it doesn't apply country-specific adjustments such as the UK's midnight rule or the US weighting, so use its numbers as a careful starting point and check the exact method with your adviser.
Frequently asked questions
If I spend fewer than 183 days in every country, am I tax resident nowhere?
Not necessarily. 183 days is only one test. Many countries also look at where your home is, your ties such as family and work, or your domicile, and your home country's rules can keep you resident there even while you travel. Talk to a tax professional about your situation.
Is the 183 days counted per calendar year?
It depends on the country and the rule. The UK counts its tax year (6 April to 5 April), Australia its income year (1 July to 30 June), the US substantial presence test combines three years with weighting, and the OECD model treaty's employment rule looks at any twelve-month period.
Does a partial day count as a day?
It depends on the country. The UK counts a day if you are in the UK at the end of the day (midnight), with some exceptions. Other rules count any part of a day. Visa365 counts any part of a day as a full day, so the days you arrive and leave count in full.
Can Visa365 track 183 days for tax residency?
Yes. Add a days-per-year limit, such as 183 days, from the year start you choose, or a rolling window such as 183 days in any 365. Visa365 logs your days automatically and shows how many you have left, with alerts as you get close. It counts days to help you plan; it is not tax advice.
Sources
- GOV.UK: Tax on foreign income, residence (the 183-day automatic UK test, the tax year, the 16 and 46-day thresholds)
- HMRC manual RFIG20710: meaning of a day spent in the UK (the midnight rule)
- Australian Taxation Office: residency, the 183-day test
- Australian Taxation Office: tax-free threshold for newcomers (the income year runs 1 July to 30 June)
- Australian Taxation Office: residency, the domicile test (permanent place of abode, moving between countries)
- IRS: Substantial presence test
- OECD Model Tax Convention on Income and on Capital, condensed version 2017 (Articles 4 and 15)
More guides
This page is general information to help you plan, not legal, immigration or tax advice. Rules change and depend on your passport and circumstances: always check the official sources linked here before you travel.