If you're leaving the UK - or you've already left and want to know whether HMRC still considers you a tax resident - the Statutory Residence Test is the framework you need to understand. It's the single mechanism that determines whether you owe UK tax on your worldwide income or only on UK-source earnings.
Unlike some countries where residency comes down to a vague "facts and circumstances" assessment, the UK codified its test into legislation in 2013. The good news: it's structured and (mostly) predictable. The bad news: it's layered, with multiple thresholds that shift based on your personal ties to the UK.
I've spent a lot of time pulling apart tax residency frameworks across different jurisdictions - Australia's four-test system, Malaysia's day-count approach, and now the UK's SRT. This guide breaks down each part of the test, explains how days are counted, covers split-year treatment, and flags the mistakes that keep people accidentally UK-resident.
What Is the Statutory Residence Test?
The Statutory Residence Test is a three-part legislative framework introduced by Schedule 45 of the UK Finance Act 2013. It replaced the previous case-law approach to determining UK tax residency with a structured test applied on a tax-year basis. Any individual present in the UK must work through the three parts sequentially to establish whether they are resident or non-resident for that year.
Before 2013, UK tax residency was determined by a patchwork of case law, HMRC guidance, and interpretation. It was messy. Two people in near-identical situations could get different outcomes depending on which HMRC officer reviewed their case.
The SRT changed that. It introduced a clear, sequential framework with three parts:
- Part 1: Automatic Overseas Tests Non-resident
- Part 2: Automatic UK Tests Resident
- Part 3: Sufficient Ties Test Grey area
You work through these in order. If Part 1 confirms you as non-resident, you stop - Parts 2 and 3 are irrelevant. If Part 1 doesn't apply, you move to Part 2. If Part 2 confirms you as resident, you stop. Only if neither Part 1 nor Part 2 gives a definitive answer do you reach Part 3 - the sufficient ties test - which is where things get nuanced.
The SRT applies to each tax year individually. The UK tax year runs from 6 April to 5 April. You could be resident in one tax year and non-resident in the next, depending on your circumstances and day count in each period.
Part 1: The Automatic Overseas Tests
The automatic overseas tests provide three definitive routes to UK non-residency. If you meet any one of these tests, you are automatically non-resident for that tax year regardless of your ties to the UK. They are based on prior residency history, day count, and whether you work full-time overseas.
Part 1 is where you want to land. If any one of the three automatic overseas tests applies, you're non-resident - full stop. No need to analyse ties, no grey areas, no risk.
First Automatic Overseas Test
You were non-resident in all three of the preceding tax years and you spend fewer than 16 days in the UK in the current tax year.
This is the strictest threshold but applies to people who have already been living abroad for several years. If you've been out of the UK for three full tax years, you only need to keep your UK visits under 16 days per year to remain automatically non-resident.
Second Automatic Overseas Test
You were resident in one or more of the preceding three tax years and you spend fewer than 46 days in the UK in the current tax year.
This is the test most recent leavers will rely on in their first few years abroad. If you left the UK recently, staying under 46 days per tax year is the clearest path to automatic non-residency. That's roughly six and a half weeks - enough for a couple of short trips home to visit family.
Third Automatic Overseas Test
You work full-time overseas throughout the tax year, with no significant breaks, and you spend fewer than 91 days in the UK, of which fewer than 31 are working days.
This test is designed for people who are employed or self-employed full-time in another country. "Full-time" means an average of at least 35 hours per week, assessed over the tax year. The 91-day and 31-working-day limits give you more flexibility for UK visits, provided you're not performing substantial work while you're there.
According to the HMRC RDR3 guidance document, the overseas work test requires that you have no "significant break" from overseas work of more than 31 consecutive days during the tax year.
Part 2: The Automatic UK Tests
The automatic UK tests provide four routes by which an individual is conclusively UK-resident for a tax year. Meeting any single test - spending 183 or more days in the UK, having your only home in the UK, carrying out full-time UK work, or dying in the UK having been previously resident - makes you automatically UK-resident.
If none of the automatic overseas tests in Part 1 apply, you move to Part 2. If any of these four tests apply, you are automatically UK-resident. These are the tripwires you need to avoid.
First Automatic UK Test: 183 Days
You spend 183 days or more in the UK during the tax year. This is the most straightforward test and the one most people already know about. If you're in the UK at midnight on 183 or more days, you're resident - no further analysis needed.
Second Automatic UK Test: Only Home in the UK
You have a home in the UK for a period of at least 91 consecutive days (of which at least 30 fall in the tax year), you are present in that home on at least 30 days in the tax year, and there is no overseas home where you are present on at least 30 days.
This is the one that catches people who leave the UK but don't properly establish a home abroad. If your UK property is still available and you haven't set up a genuine home in another country, this test can make you resident even if your day count is well below 183.
Third Automatic UK Test: Full-Time UK Work
You work full-time in the UK for a period of 365 days, with no significant break. At least 75% of the working days in that 365-day period must be UK working days. This primarily catches people who are employed full-time by a UK employer and physically working in the UK.
Fourth Automatic UK Test
You die during the tax year, were resident in at least one of the previous three tax years, and had a UK home at any point in the tax year. This is a niche provision that ensures continuity of residency status in the event of death.
Part 3: The Sufficient Ties Test
The sufficient ties test is the grey-area resolution mechanism of the SRT. It applies only when neither the automatic overseas tests nor the automatic UK tests give a definitive answer. It evaluates five connecting factors - family, accommodation, work, 90-day presence, and country - against day-count thresholds that differ for "leavers" and "arrivers".
This is where the SRT gets personal. If Parts 1 and 2 don't give you a clear answer, Part 3 looks at your actual connections to the UK and weighs them against the number of days you spend there.
The Five UK Ties
- Family tie: Your spouse, civil partner, or minor child is UK-resident. A spouse counts even if you're separated but not legally divorced.
- Accommodation tie: You have a place to stay in the UK that is available to you for a continuous period of 91 or more days, and you spend at least one night there. This includes a room in a family member's house.
- Work tie: You do substantive work in the UK for 40 or more days in the tax year. "Substantive" means more than three hours of work in a day.
- 90-day tie: You spent more than 90 days in the UK in either or both of the two preceding tax years.
- Country tie: You spend more days in the UK than in any other single country during the tax year. This tie only applies to "leavers" - people who were UK-resident in one or more of the previous three tax years.
Day Thresholds for Leavers
If you were UK-resident in one or more of the three preceding tax years, you are classified as a "leaver" and all five ties can apply. The thresholds are:
| UK Ties | Days to Become Resident |
|---|---|
| 4 or more ties | More than 15 days |
| 3 ties | More than 45 days |
| 2 ties | More than 90 days |
| 1 tie | More than 120 days |
| No ties | Always non-resident under Part 3 |
Day Thresholds for Arrivers
If you were non-resident in all three of the preceding tax years, you are an "arriver" and only four ties apply (the country tie does not). The thresholds are more generous:
| UK Ties | Days to Become Resident |
|---|---|
| All 4 ties | More than 45 days |
| 3 ties | More than 90 days |
| 2 ties | More than 120 days |
| 1 tie or none | Always non-resident under Part 3 |
The practical takeaway: the more ties you have, the fewer days you can spend in the UK. If you're a leaver with a spouse in London, a room at your parents' house, and you spent 95 days in the UK last year, you already have three ties - meaning anything over 45 days in the UK makes you resident.
This is why cutting ties is not just about feelings. It directly controls how many days you're allowed in the UK before HMRC treats you as resident.
How to Count UK Days
Under the SRT, a "UK day" is any day on which you are present in the UK at midnight. Transit days - where you arrive in the UK and depart the following day without engaging in non-travel activities - generally do not count. HMRC also provides limited exceptional circumstances relief for days caused by events genuinely beyond your control.
Day-counting under the SRT follows a specific set of rules set out in the HMRC Statutory Residence Test manual, and getting them wrong can push you over a threshold without realising it.
The Midnight Rule
You are present in the UK on a given day if you are in the country at midnight (the end of the day). If you arrive in the UK at 10am and fly out at 11pm the same day, that day does not count - because you were not present at midnight.
However, if you arrive at 10am and stay overnight, the day you are in the UK at midnight counts as a UK day.
Transit Days
A day does not count if you are in the UK solely because you are in transit. This means you arrive in the UK, do not engage in any activities that are unrelated to your transit, and leave the next day. HMRC expects that transit means exactly that - passing through an airport, not popping into London for dinner and a meeting.
Exceptional Circumstances
HMRC allows up to 60 days of exceptional circumstances relief per tax year. Days spent in the UK due to circumstances beyond your control - such as a sudden illness, a natural disaster, or civil unrest preventing departure - can be excluded from your day count.
This relief is narrow. Delayed flights, bad weather causing a one-day extension, or a family emergency may qualify. Choosing to stay longer because you're enjoying yourself does not. You need to demonstrate that you intended to leave and were genuinely prevented from doing so.
The Split-Year Treatment
Split-year treatment allows an individual who leaves or arrives in the UK partway through a tax year to divide that year into a UK part and an overseas part. During the overseas part, only UK-source income is taxable. This prevents individuals from being taxed on worldwide income for an entire year when they were only resident for a portion of it.
If you leave the UK on 1 August, you don't want to be taxed as a UK resident for the full tax year running from 6 April to 5 April. The split-year provisions under Schedule 45 of the Finance Act 2013 address this.
Split-year treatment is not automatic. You must meet specific conditions under one of several qualifying cases. The most relevant for leavers are:
- Case 1: You start full-time work overseas. The overseas part begins on the day you start that work, provided you meet the conditions for the third automatic overseas test for the following tax year.
- Case 2: Your partner starts full-time work overseas and you accompany them. Similar conditions to Case 1.
- Case 3: You cease to have a home in the UK. The overseas part begins the day after you no longer have a UK home, provided you have an overseas home from that point and meet the day-count conditions.
During the UK part of a split year, you're taxed as a UK resident - worldwide income is in scope. During the overseas part, you're taxed as a non-resident - only UK-source income is taxable. This distinction can save a substantial amount of tax in your year of departure.
The key practical point: if you're planning to leave the UK, timing your departure relative to the 6 April tax year boundary matters. Leaving early in a tax year gives you a longer overseas portion and a shorter UK portion.
Common Mistakes That Keep You UK Tax Resident
The most common errors that prevent people from achieving UK non-residency are: keeping a UK property available for personal use, leaving a spouse or children in the UK, making frequent return trips that accumulate ties, failing to track day counts accurately, and not establishing a genuine home overseas. Each of these can trigger ties under Part 3 or fail the automatic tests entirely.
I've seen these trip people up repeatedly - both in UK-specific forums and in conversations with expats who assumed they'd left cleanly. Here are the most frequent mistakes.
1. Keeping a UK property available for your use
If you own or rent a property in the UK and it remains available for you to stay in - even occasionally - it counts as an accommodation tie. It also risks triggering the second automatic UK test if it's your only home. The fix: rent it out on a tenancy of at least 12 months, or sell it. An empty, furnished flat in Manchester that you stay in when you visit is an accommodation tie waiting to be counted.
2. Spouse or children remaining in the UK
If your spouse, civil partner, or minor child remains UK-resident, you have a family tie. For leavers, this immediately reduces the number of days you can spend in the UK before hitting the sufficient ties threshold. If relocation isn't possible for the whole family, you need to be even more disciplined about your other ties and day count.
3. Frequent return visits
Every trip back adds days. A week here for a wedding, ten days there for Christmas, a long weekend for a friend's birthday - it accumulates faster than people expect. Keep a running spreadsheet of every UK day, updated in real time. Don't guess at the end of the tax year. By then it's too late.
4. Not tracking your day count
The SRT thresholds are precise - 16 days, 46 days, 91 days, 120 days, 183 days. Being one day over can change your residency status for an entire tax year. Yet many people don't maintain a contemporaneous record. HMRC can request entry and exit records. If your count doesn't match theirs, you have a problem.
5. Not establishing a home overseas
The second automatic UK test catches people who have a UK home but no overseas home. If you're moving between Airbnbs, hotels, and friends' spare rooms abroad, HMRC can argue your only home is still in the UK. Sign a proper lease. Get your name on utility bills. Build a paper trail that shows your life is anchored somewhere specific outside the UK.
Building Your Non-Residency Evidence
HMRC expects individuals claiming non-residency to maintain documented evidence supporting their position. Key records include travel logs with entry and exit dates, overseas tenancy agreements, foreign utility bills, overseas bank statements, employment contracts, and a record of UK days. This evidence file should be maintained contemporaneously, not reconstructed after the fact.
The SRT is a self-assessment test. You determine your own residency status when you file your tax return. But if HMRC opens an enquiry, the burden falls on you to prove your position. As set out in the HMRC RDR3 guidance document, you should maintain records that demonstrate how you meet the relevant tests.
Here's a practical checklist of what to keep on file:
- Travel log: A spreadsheet recording every UK arrival and departure date, the purpose of each visit, and a running day count for the tax year. Update it after every trip.
- Flight bookings and boarding passes: Digital or physical copies confirming your travel dates.
- Overseas tenancy agreement: Your lease in your new country of residence, showing a commitment of 12 months or more.
- Foreign utility bills: Electricity, water, internet - all in your name at your overseas address.
- Overseas bank statements: Showing your primary financial activity is outside the UK. If you need recommendations, see our guide to the best international bank accounts for expats.
- Employment or self-employment records: Contracts, invoices, or payslips confirming where you work and for whom.
- Health insurance: Evidence of coverage in your new country. We've reviewed the best health insurance options for digital nomads and expats.
- Local registrations: Tax registration, driving licence, gym membership, professional body membership - anything that shows establishment in another jurisdiction.
Think of this as building a file that tells a coherent story. The story is: I left the UK, I established a genuine life elsewhere, and my remaining connections to the UK are limited and consistent with someone who no longer lives there.
If you're relocating from the UK to a specific destination, the evidence requirements will overlap with the immigration and tax rules of that country. For those considering Southeast Asia, our UK to Malaysia tax residency guide covers the practical steps in detail.
What Happens to UK Income After You Leave?
Becoming non-resident does not eliminate all UK tax obligations. UK-source income remains taxable under UK law regardless of your residency status. This includes rental income from UK property, employment income for work physically performed in the UK, and certain pension withdrawals. UK dividends and interest may be covered by the applicable double taxation agreement with your new country of residence.
A common misconception is that once you pass the SRT as non-resident, the UK can't tax you on anything. That's wrong. Non-residency changes what the UK can tax you on - it doesn't create a blanket exemption.
Here's what remains taxable after you leave:
- UK rental income: If you own property in the UK and receive rent, that income is taxable in the UK. You'll typically need to register with HMRC's Non-Resident Landlord Scheme or have your letting agent withhold tax at source.
- UK employment income: If you perform any work physically in the UK - even a few days - the income attributable to those days is UK-taxable.
- UK trading income: If you have a permanent establishment or trade through a UK branch, the profits are taxable in the UK.
- Pension withdrawals: Withdrawals from UK pensions are generally subject to UK tax, though the rate and treatment depend on the type of pension and any applicable double taxation agreement.
- UK dividends: Dividends from UK companies are generally not taxable for non-residents, provided there is no UK permanent establishment. However, check the specific double taxation agreement between the UK and your new country.
- Capital gains: Non-residents are generally outside the UK capital gains tax regime, with the important exception of UK residential property. Gains on UK residential property disposals remain taxable for non-residents, and must be reported to HMRC within 60 days of completion.
The interaction between UK tax obligations and the tax rules of your new country is governed by the relevant double taxation agreement. Most agreements provide relief from double taxation through either a credit or exemption method, but the specifics vary by country and income type.
Frequently Asked Questions
What is the UK Statutory Residence Test?
The SRT is a three-part framework introduced by the Finance Act 2013 Schedule 45 that determines UK tax residency for each tax year. It replaced the old case-law approach with a structured test: automatic overseas tests (Part 1), automatic UK tests (Part 2), and the sufficient ties test (Part 3). You work through them in order until one gives a definitive answer.
How many days can I spend in the UK without becoming tax resident?
It depends on your history and ties. If you were non-resident for the previous three years, the automatic threshold is 15 days. If you were resident in any of the prior three years, it's 45 days. Beyond those limits, the sufficient ties test applies - your allowance ranges from 16 to 120 days depending on how many UK ties you have.
What counts as a "day" in the UK for SRT purposes?
A UK day is any day you are present in the country at midnight. If you arrive and leave before midnight on the same day, it doesn't count. Transit days - where you pass through without engaging in non-travel activities - may also be excluded. Exceptional circumstances relief allows up to 60 days per tax year to be discounted for events beyond your control.
What are the five UK ties in the sufficient ties test?
They are: family tie (spouse, civil partner, or minor child resident in the UK), accommodation tie (a UK property available for 91+ consecutive days where you stay at least one night), work tie (40+ days of substantive UK work), 90-day tie (90+ days in the UK in either of the two prior years), and country tie (more UK days than in any other single country - leavers only).
Can I split a UK tax year if I leave partway through?
Yes. Split-year treatment under Schedule 45 of the Finance Act 2013 allows a tax year to be divided into a UK part and an overseas part if you meet specific qualifying conditions. During the overseas part, only UK-source income is taxable. The most common qualifying case for leavers is starting full-time work overseas.
Do I still pay UK tax on UK income after I leave?
Yes. UK-source income remains taxable regardless of your residency status. This includes UK rental income, employment income for work performed in the UK, and most pension withdrawals. UK residential property gains are also taxable for non-residents. Check the double taxation agreement between the UK and your new country for relief provisions.