Am I Still a UK Tax Resident? The Expat's Guide to the Statutory Residence Test

If you ask most British expats if they are still a UK tax resident, many will just shrug and guess, often saying, 'no, I moved away’. However, simply moving away is not the test, and getting it wrong can be costly.

One set of rules, called the Statutory Residence Test, decides whether the UK can tax your income, your gains, and, more often than not, your estate. Since April 2025, this has become even more important.

Here's why it matters and how the test works, explained in plain English. There is also a tool at the end to help you check your status and see where you stand.

Why residence suddenly matters more

Until recently, much of an expat's UK tax exposure depended on the old (and very confusing) idea of domicile. In April 2025, the UK replaced most of that with a system based on residence.

Now, your residence status decides if you are taxed on your worldwide income and gains. The new long-term resident rules also decide if your worldwide estate is subject to UK inheritance tax.

In short, the Statutory Residence Test used to be a detail most expats ignored, but now it is the main factor that affects your UK tax position. It is important to understand it.

How the test works: three questions, in order

The good news is that the test is straightforward. It's based on days and connections, not on personal feelings or judgement. You go through three stages in order, and the first one that applies gives you your answer.

Stage 1 — the automatic overseas tests

If you meet any of these, you are non-resident. This is where most genuine expats fall. You're automatically non-resident if, in general:

• You were UK resident in one or more of the last three tax years and spend fewer than 16 days in the UK this year; or

• You weren't UK resident in any of the last three years and spend fewer than 46 days here; or

• You work full-time overseas, with fewer than 91 days in the UK and fewer than 31 days spent working here.

If none of these applies to you, move on to the next stage.

Stage 2 — the automatic UK tests

If you meet any of these, you are a UK resident. You're automatically a UK resident if:

• You spend 183 or more days in the UK in the tax year; or

• Your only home is in the UK; or

• You work full-time in the UK.

Stage 3 — the sufficient ties test

If neither of the first two stages gives you an answer, your residence depends on how many days you spend in the UK and how many "ties" you have. The more ties you have, the fewer days it takes to become resident.

The five ties

Your ties are the connections that keep you linked to the UK. These include:

• Family: A spouse, partner or minor child resident in the UK.

• Accommodation: A place available for you to live in the UK.

• Work: 40 or more days doing substantive work in the UK.

• The 90-day tie: You spent 90+ days in the UK in either of the previous two tax years.

• The country tie: The UK is the country you spent the most days in. This one applies only to 'leavers', meaning people who were UK residents in one of the last three years.

The number of ties that makes you a resident depends on your days and on whether you are an 'arriver' or a 'leaver'. The checker below works through the exact thresholds.

Arrivers and leavers: why the label matters

The test treats two groups differently, and which one you're in can change the outcome:

• A leaver is someone who was a UK resident in at least one of the previous three tax years. This could be a recent emigrant or someone who comes and goes.

• An arriver is someone who was not a UK resident in any of the last three years — a long-settled expat, or someone newly arriving in the UK.

Leavers are held to a tougher standard. Fewer UK days trigger residence at each level of ties, and they have an extra, fifth tie (the country tie) that arrivers do not.

The practical upshot is quietly reassuring for committed expats. The longer you have been genuinely non-resident, the more days and ties it takes to make you a UK resident again. Someone who left last year has less room than someone who has been abroad for a decade.

Where expats trip up

The test is mechanical, which is exactly why people get caught out. Small details about your year can change the result. Here are a few common traps:

Assuming '183 days' is the whole story

It's only one way to become a resident. Through the ties test, you can be a UK resident on far fewer days, sometimes as few as 46, if you have enough connections. Only counting to 183 is the most common mistake.

The accidental resident

Imagine an expat living and working in Dubai who still keeps the family home available in the UK, has a spouse and school-age children there, and comes back regularly for work. Each of these is a tie on its own. Together, family, accommodation, work, and the 90-day tie can add up to UK residence on a surprisingly small number of days, even if the person feels firmly based abroad.

The returner caught by temporary non-residence

Someone who leaves the UK, realises a large gain while abroad (say, selling a business or investments), and then moves back within roughly five years can find that gain pulled back into UK tax on their return, under the anti-avoidance rule for short absences. Leaving isn't always enough; how long you stay away matters.

The message is always the same: your residence is decided by the full picture of your days and ties, not by where you feel you live.

What to do with the answer

Knowing your status is just the start, not the end, because it affects so much else:

• If you're non-resident, you'll want to protect that status. Watch your days and ties, and be aware of the temporary non-residence rule that can claw back tax if you return within a few years.

• If you're resident, you're taxable in the UK on a worldwide basis, and you'll want to plan accordingly.

Either way, your residence position directly affects your inheritance tax exposure and, if you're considering a move, where you would stand in a lower-tax country.

Important caveats

The test is mechanical, but it is not simple, and a short guide cannot cover everything. Here are some important things to keep in mind:

• 'Days' and 'work' have precise, technical definitions, including rules on days you are only in transit, and a cap on days spent here due to exceptional circumstances.

• Split-year treatment can apply in the year you actually leave or arrive, taxing you as resident for part of the year and non-resident for the rest. This is not covered by the basic test but is very important when timing a move.

• Always consult an expert. Our SRT checker is a simple guide to help you understand your likely position, not a formal determination.

Because so much now depends on residence, and because edge cases are where people get caught out, it is worth confirming your position properly instead of relying on an assumption.

If you would like help working out your residence status and what it means for your tax and estate planning, speak to Holborn Assets.