How the Statutory Residence Test works
The test is applied in order: automatic overseas tests → automatic UK tests → sufficient ties test.
Automatic overseas (non-resident if any apply)
- Fewer than 16 days in the UK (if resident in any of the previous 3 years).
- Fewer than 46 days in the UK (if not resident in any of the previous 3 years).
- Full-time work abroad: fewer than 91 UK days and fewer than 31 UK work days.
Automatic UK (resident if any apply)
- 183 days or more in the UK.
- Your only home is in the UK (for 91+ days, present 30+ days), or you work full time in the UK.
Sufficient ties test
| Days in UK | Leaver — resident if ties ≥ | Arriver — resident if ties ≥ |
|---|---|---|
| 16 – 45 | 4 | never (automatic overseas) |
| 46 – 90 | 3 | 4 |
| 91 – 120 | 2 | 3 |
| 121 – 182 | 1 | 2 |
Arrivers cannot have the country tie, so they have a maximum of four ties. Official guidance: HMRC RDR3.
Frequently asked questions
How many days can I spend in the UK without becoming tax resident?
It depends on your ties. Fewer than 16 days is always non-resident if you were UK resident in any of the previous three tax years (fewer than 46 if you were not). 183 days or more is always resident. In between, the Sufficient Ties Test applies: the more ties you have, the fewer days you are allowed — as few as 16 with four ties, or up to 182 with none.
What counts as a day in the UK?
Any day you are in the UK at midnight. Transit days where you arrive and leave without doing anything unrelated to travel do not count. A "deeming rule" can also count some days you leave before midnight if you have 3+ ties, were resident in one of the previous 3 years, and have more than 30 such days in the year.
What are the five UK ties?
Family tie (spouse/civil partner/partner or minor children resident in the UK); accommodation tie (a place available for 91+ continuous days that you spend at least one night in); work tie (40+ days working 3+ hours in the UK); 90-day tie (90+ days in the UK in either of the two previous tax years); country tie (more midnights in the UK than any other single country — applies only to leavers).
What is the full-time work abroad test?
You are automatically non-resident if you work full time overseas (average 35+ hours a week), spend fewer than 91 days in the UK and work fewer than 31 days in the UK (3+ hours counts as a work day), with no significant breaks. This is the test most Gulf expats rely on.
Does the UK tax year run January to December?
No — 6 April to 5 April. Count your days per tax year, not calendar year. Split-year treatment may apply in the year you leave or return.
What about exceptional circumstances?
Up to 60 days a year spent in the UK because of exceptional circumstances beyond your control (serious illness, national emergency) can be disregarded for most day-count tests, but not for the work-tie or deeming calculations.
What happens if I become UK resident while working in the Gulf?
Your worldwide income for that tax year — including your Gulf salary — becomes taxable in the UK, subject to split-year treatment and any double-tax relief. The UAE and Qatar have treaties with the UK; Saudi Arabia does too. Getting this wrong is expensive, so keep a day log with evidence.