Few questions land as much quiet dread in an accountant's inbox as "am I still UK tax resident?" The answer decides whether HMRC has a claim on your worldwide income and gains, or just what you earn here in the UK so it's worth getting right, and worth knowing it isn't a matter of opinion. Since 2013, the UK has settled the question with a fixed set of rules called the Statutory Residence Test (SRT). "Statutory" rarely means "simple," but it does at least mean a defined process rather than a judgement call.

Here are the big pieces, in the order HMRC actually applies them.

Step one: can you rule yourself out automatically?

The SRT starts by asking whether you're automatically non-resident. Broadly, you qualify if:

  • You spent fewer than 46 days in the UK in the tax year (or fewer than 16 if you were UK resident in any of the previous three years), or
  • You worked full-time overseas, with no more than 90 days in the UK and no more than 30 of those spent working.

Tick one of these boxes and the test stops there, you're non-resident, no further steps needed. Miss them, and you move on.

Step two: can HMRC rule you in automatically?

Next come the automatic UK tests. You're automatically resident if:

  • You spent 183 days or more in the UK in the tax year,
  • Your only home was in the UK for at least 91 days (with at least 30 days spent there), or
  • You worked full-time in the UK, with more than 75% of your working days here over a 365-day period.

If either the "out" or the "in" tests apply, you already have your answer. Most people, in practice, land in neither camp, which is where it gets genuinely interesting.

Step three: the sufficient ties test

If neither automatic test settles things, residence comes down to a balancing act between days spent in the UK and your connections or "ties" to it. There are five:

  • Family tie: a spouse, partner or minor child who's UK resident.
  • Accommodation tie: a home available to you in the UK that you use during the year.
  • Work tie: 40 or more days working in the UK.
  • 90-day tie: 90 or more days in the UK in either of the previous two tax years.
  • Country tie: the UK being the single country you spent the most days in during the year (this one only applies if you're a "leaver," below).

How many ties you need depends on whether you're an "arriver" (not UK resident in any of the previous three years) or a "leaver" (resident in at least one of them). Leavers face a noticeably stricter bar, fewer ties are needed to tip into residence at the same day count. As a rule of thumb: the more days you spend in the UK, the fewer ties it takes to make you resident, and the rules are considerably less forgiving to people leaving than to people arriving.

The bits that catch people out

A few things trip up more people than the core test itself:

  • Day counting is stricter than it sounds. A day generally counts if you're in the UK at midnight, arrive in the morning and leave that evening and it may not count, but the "in transit" and exceptional-circumstances exceptions are narrow and easy to misjudge. Be careful here.
  • Split-year treatment can divide a single tax year into resident and non-resident parts if you move to or from the UK partway through it. Genuinely useful when it applies, but it comes with its own separate set of conditions, not a simple pro-rata.
  • Temporary non-residence rules exist specifically to stop people leaving for a short stint, realising gains or income while "non-resident," and returning straight after. HMRC can and will look back and tax it anyway if you're away for under five years.

None of this is designed to be worked out on the back of an envelope, and the consequences of getting it wrong, an unexpected worldwide tax bill, or an HMRC enquiry raised years after the event are best avoided rather than argued about later.

Where to go from here

The Statutory Residence Test is a genuinely mechanical set of rules, which is good news: with the right facts, it produces a definite answer rather than a guess. The less good news is that "the right facts" usually means a careful look at your travel history, your ties, and your plans, ideally worked through before the tax year in question, not after HMRC has already formed a view of it.

Download the full flowchart (PDF)

If you're planning a move abroad, coming back to the UK, or simply unsure where you stand, we'd be glad to work through it with you. Get in touch to arrange a consultation, and we'll help you establish exactly where you stand and what, if anything, you need to do about it.

This article is a general overview of the Statutory Residence Test based on HMRC guidance (RDR3) as at September 2026. It doesn't cover every rule, including the detail of split-year treatment or the temporary non-residence provisions, and residence outcomes can turn on small facts such as how days are counted. It isn't tax advice for your circumstances, so please speak to us before making decisions based on your residence position. Higginson James Limited accepts no liability for any loss arising from reliance on this article.