How many days can I spend in the UK without becoming tax resident?

It depends on your UK ties. With no ties, you can spend up to 46 days (if non-resident for the previous 3 years) or 16 days (if resident in the previous year). With more ties, the threshold decreases. The 183-day rule always applies regardless of ties. The number of days you can spend in the UK without becoming resident depends on your UK ties and your residence status in the previous 3 tax years. Under the sufficient ties test: If you were NOT UK resident in any of the previous 3 tax years: 4+ ties = 46 days; 3 ties = 46 days; 2 ties = 46 days; 1 tie = 46 days; 0 ties = no limit (but automatic overseas tests may apply). If you WERE UK resident in any of the previous 3 tax years: 4+ ties = 16 days; 3 ties = 46 days; 2 ties = 46 days; 1 tie = 46 days. Additionally, the automatic tests provide hard limits: spending 183+ days always makes you resident, and the automatic overseas tests provide non-residence certainty if you spend fewer than 16 or 46 days (depending on circumstances). Relevant legislation: Finance Act 2013, Schedule 45 (Statutory Residence Test); FA 2013, Sections 218-221 (automatic tests and sufficient ties test). Example: A non-resident individual with a UK accommodation tie and a family tie (spouse living in the UK) can spend up to 46 days in the UK without becoming resident (assuming they were not UK resident in the previous 3 years). If they were UK resident in one of the previous 3 years, the same two ties would allow 46 days. With 4+ ties and prior UK residence, only 16 days are permitted. Common mistake: Assuming there is a single '90-day rule'. The 90-day limit was abolished in 2013 with the introduction of the SRT. The number of permitted days now depends on the number of UK ties and previous residence status.

What counts as a UK tie under the SRT?

The five UK ties are: family tie (spouse/minor children in the UK), accommodation tie (a place to live available for 91+ days), work tie (40+ days of work in the UK), 90-day tie (90+ days in the UK in either of the previous two years), and country tie (UK is the country where you were resident for the most days). The sufficient ties test counts five types of UK ties: (1) Family tie — your spouse, civil partner, or minor child lives in the UK (or is resident there). (2) Accommodation tie — you have a place to live in the UK that is available for a continuous period of 91+ days and you spend at least 1 night there. (3) Work tie — you work in the UK for 40+ days (3+ hours per day counts as a work day). (4) 90-day tie — you spent 90+ days in the UK in either of the previous two tax years. (5) Country tie — the UK is the country in which you were resident for the most days in the tax year (only applies if you were UK resident in the previous year). Each tie reduces the number of days you can spend in the UK without becoming resident. Relevant legislation: Finance Act 2013, Schedule 45, Sections 990-994 (ties definitions). Example: An individual has a UK home (accommodation tie), works in the UK for 50 days (work tie), and has a spouse living in the UK (family tie). They have 3 ties. If they were not UK resident in the previous 3 years, they can spend up to 46 days in the UK without becoming resident. If they spend 47+ days, they become UK resident. Common mistake: Not counting all ties. The accommodation tie can apply even if you only stay in the property for a few nights, as long as it is available for 91+ days and you spend at least 1 night there.

How are days counted for UK tax residence?

A day counts if you are present in the UK at midnight. There are exceptions for transit passengers (arriving and departing on the same aircraft/ship) and exceptional circumstances (limited to 60 days per year). A day counts as a UK day for residence purposes if you are present in the UK at midnight. There are limited exceptions: (1) Transit passengers — if you arrive in the UK as a passenger and depart on the same aircraft or ship, the day does not count. (2) Exceptional circumstances — days spent in the UK due to exceptional circumstances beyond your control (e.g., illness, adverse weather, national travel restrictions) are disregarded, but only up to 60 days per tax year. (3) Death — the day of death and days after death are not counted. The day of arrival and the day of departure both count if you are in the UK at midnight on those days. It is important to keep detailed records of travel dates, as HMRC can request evidence of your travel history. Relevant legislation: Finance Act 2013, Schedule 45, Section 995 (days of presence); Section 996 (exceptional circumstances). Example: An individual arrives in the UK on 5 May and departs on 10 May. They are in the UK at midnight on 5, 6, 7, 8, 9 May (5 days). The day of arrival counts if they are in the UK at midnight, and the day of departure counts only if they are in the UK at midnight (if they depart before midnight, the day of departure does not count, but the previous nights do). Common mistake: Not keeping detailed travel records. HMRC can request evidence of travel dates for up to 6 years, and the burden of proof is on the taxpayer to demonstrate their days of presence.

What is split-year treatment under the SRT?

Split-year treatment allows a tax year to be divided into a UK-resident part and a non-resident part. It applies when you arrive in or leave the UK during the tax year, preventing a full year of UK residence. The rules are complex and case-specific. Split-year treatment allows a tax year to be split so that part of the year is treated as UK-resident and part as non-resident. This prevents an individual who arrives in or leaves the UK mid-year from being treated as UK resident for the entire year. Split-year treatment is available in eight specific 'cases': (1) Case 1 — leaving the UK to work full-time overseas. (2) Case 2 — leaving the UK to become non-resident. (3) Case 3 — leaving the UK to work full-time overseas with a partner. (4) Case 4 — ceasing to have a home in the UK. (5) Case 5 — arriving in the UK to work full-time in the UK. (6) Case 6 — arriving in the UK with no home overseas. (7) Case 7 — arriving in the UK to work full-time in the UK with a partner. (8) Case 8 — starting to have a home in the UK. The conditions for each case are detailed and must be met precisely. Split-year treatment is not automatic — it must be claimed on the self-assessment return. Relevant legislation: Finance Act 2013, Schedule 45, Sections 1004-1011 (split-year treatment cases). Example: An individual leaves the UK on 1 September to work full-time overseas. If they meet the conditions of Case 1 (leaving to work full-time overseas), the tax year is split: 6 April to 31 August is treated as UK-resident, and 1 September to 5 April is treated as non-resident. Foreign income earned after 1 September is not subject to UK tax. Common mistake: Assuming split-year treatment is automatic. It must be claimed on the self-assessment return, and the specific conditions of the relevant case must be met.

Can I be resident in the UK and another country simultaneously?

Yes. It is possible to be dual-resident in the UK and another country. The UK has double taxation treaties with many countries that contain 'tie-breaker' rules to determine which country has primary taxing rights. It is possible to be resident in the UK and another country simultaneously under their respective domestic laws. For example, the UK SRT may determine you are UK resident, while the other country's rules also determine you are resident there. In this case, double taxation treaties typically contain 'tie-breaker' rules to determine which country has primary taxing rights. The tie-breaker rules generally follow this order: (1) Permanent home — which country do you have a permanent home available in? (2) Centre of vital interests — where is your personal and economic life more closely connected? (3) Habitual abode — where do you live regularly? (4) Nationality — which country are you a national of? If the tie-breaker determines you are resident in the other country, you may be treated as non-resident in the UK for treaty purposes (even though you are UK-resident under domestic law). This can affect your UK tax liability and reporting obligations, but the rules are complex and specialist advice is essential. Relevant legislation: Finance Act 2013 (SRT); double taxation treaties (OECD Model Convention, Articles 4 and 15-21). Example: An individual spends 120 days in the UK and 200 days in France. Under the UK SRT, they may be UK resident. Under French rules, they may also be French resident. The UK-France double taxation treaty tie-breaker determines which country has primary taxing rights: if they have a permanent home in France but not the UK, France wins and the individual is treated as French-resident for treaty purposes. Common mistake: Assuming that being dual-resident means paying tax twice. Double taxation treaties are designed to prevent this, but the rules must be applied correctly. Specialist advice is essential for dual-resident individuals.

International Tax › Residence

The Statutory Residence Test (SRT)

The SRT determines whether you are UK resident for tax purposes. Understand the automatic tests, sufficient ties test, and how to manage your residence status.

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The Statutory Residence Test (SRT) was introduced in 2013 to provide a clear, rules-based test for determining UK tax residence. It replaced the previous case-law-based approach with a structured framework of automatic tests and a sufficient ties test. Despite being rules-based, the SRT is complex and the consequences of getting it wrong can be significant — affecting your liability to UK income tax, capital gains tax, and your reporting obligations.

The Three-Part Structure

The SRT has three parts: (1) Automatic UK residence tests — if any are met, you are automatically UK resident. (2) Automatic overseas tests — if any are met, you are automatically non-resident. (3) Sufficient ties test — if neither automatic test applies, this test counts your UK ties and days to determine residence. The tests are applied in order: automatic overseas first, then automatic UK, then sufficient ties.

Automatic UK Residence Tests

You are automatically UK resident if you spend 183+ days in the UK, or if you work sufficient hours in the UK, or if you have a home in the UK for 91+ consecutive days (with at least 30 days there). These tests override the sufficient ties test — if you meet one, you are resident regardless of your ties.

Automatic Overseas Tests

You are automatically non-resident if you meet conditions including: being non-resident for the previous 3 tax years and spending fewer than 46 days in the UK, or leaving the UK to work full-time abroad, or being resident for the previous tax year and spending fewer than 16 days in the UK. These tests provide certainty for individuals who are clearly not UK resident.

The Sufficient Ties Test

If neither automatic test applies, the sufficient ties test determines residence based on the number of UK ties (family, accommodation, work, 90-day presence, and country ties) and the number of days spent in the UK. The more ties you have, the fewer days you can spend in the UK without becoming resident. The thresholds depend on whether you were UK resident in any of the previous 3 tax years.

Key Points

What You Need to Know

Spending 183+ days in the UK automatically makes you UK resident
The sufficient ties test counts family, accommodation, work, 90-day, and country ties
Automatic overseas tests can provide non-residence certainty
Days count if you are in the UK at midnight (with special rules for transit passengers)
Residence status affects income tax, CGT, and reporting obligations

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