How many days can I spend in the UK after I leave?
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The Statutory Residence Test: the framework that governs everything
When you leave the UK, you do not simply stop being a UK taxpayer on day one. HMRC uses the Statutory Residence Test (SRT), introduced in Finance Act 2013, to determine your residence status for each tax year. The SRT works through a series of automatic tests — first automatic non-residence, then automatic residence, then a tie-breaker — and the day-count rules sit at the heart of it.
The tax year runs 6 April to 5 April. Your status is assessed year by year, not continuously.
Automatic non-residence: the 15-day threshold
The cleanest rule in the SRT is the automatic non-residence test. If you spend fewer than 16 days in the UK in a tax year, you are automatically non-UK-resident for that year, regardless of any other factor.
This is the threshold most people aiming for a clean exit should understand. It is not generous — roughly one trip home every three weeks across the year would breach it — but it is definitive.
What happens above 15 days: ties determine your limit
Once you spend 16 or more days in the UK, your allowable total depends on how many UK ties you hold. The SRT identifies five ties; which ones are relevant to you depends partly on whether you were previously UK resident.
| UK ties held | Maximum UK days (for a formerly UK-resident leaver) |
|---|---|
| 4 or 5 ties | Up to 15 days |
| 3 ties | Up to 45 days |
| 2 ties | Up to 90 days |
| 1 tie | Up to 120 days |
| 0 ties | Up to 182 days |
The ties most commonly retained by UK leavers moving to Dubai are the accommodation tie (a UK property still available for your use, including a family home you can stay in), the family tie (a UK-resident spouse, civil partner, or minor child), and the 90-day tie (having spent more than 90 days in the UK in either of the two preceding tax years).
Retaining even two of these ties cuts your safe allowance to 90 days — roughly 12 days a month. Retain three and you are down to 45 days for the whole year.
Common mistakes that push people over
Underestimating the family tie. If your spouse or children remain in the UK while you move ahead — a common phased-move pattern — you almost certainly hold the family tie from day one.
Forgetting about the family home. Keeping a UK property and allowing yourself access to it, even if you are not renting it out, creates an accommodation tie. Letting it on a commercial basis and genuinely removing your right to use it is the standard way to break this tie.
Misreading the transit exemption. Passing through a UK airport does not automatically escape the day-count. The exemption is narrow: you must be in the UK for under 24 hours and not intend to be there. If your flight is cancelled and you stay overnight, the day counts.
Not counting from 6 April. People who leave mid-year sometimes count from their departure date rather than from 6 April. The SRT assesses the full tax year. Days spent in the UK before you left still count in some parts of the test.
The day-count is a floor, not a ceiling on scrutiny
Staying within your day-count limit is necessary but not sufficient. HMRC also looks at the quality of your UK presence — where you work when you are back, whether you are maintaining a UK lifestyle, whether your centre of life has genuinely shifted. The day-count is the bright-line rule; the broader SRT picture is what makes an enquiry survivable.
Already left the UK and not sure you did it cleanly? The Clean Break Review gives you a clear read on your UK tax position, reviewed by a UK-registered tax adviser.