UK Statutory Residence Test Explained

The UK Statutory Residence Test (SRT) is the HMRC framework that decides whether you are UK tax resident for a given tax year (6 April to 5 April). It applies three sets of tests in strict order: the automatic overseas tests (which make you non-resident), the automatic UK tests (which make you resident), and the sufficient ties test (which weighs your UK connections against days spent in the country). Spend 183 days or more in the UK and you are automatically resident. Spend fewer than 16 days (if previously resident) or fewer than 46 days (if not) and you are automatically non-resident. Everything in between depends on how many ties you keep to the UK.

UK tax residency is one of the most expensive things a long-term traveler can get wrong. Become resident and HMRC taxes your worldwide income, including remote-work earnings and foreign investment gains. Get out cleanly, and the UK only taxes UK-source income. The SRT replaced a decades-old common-law residence test in 2013 and turned residency into a structured day-count plus connection-factor analysis, codified in Schedule 45 of the Finance Act 2013.

The test applies to anyone who spends time in the UK during the tax year, regardless of citizenship. British citizens working abroad, US citizens on short stays in London, and digital nomads splitting time across Europe all use the same SRT framework. The only people exempt are those who never set foot in the UK during the year.

This post walks through the three stages of the SRT in the exact order HMRC applies them, the day-counting rules (including the midnight rule and the deeming rule for frequent visitors), split year treatment for the year you move in or out, and the 2025 reforms that replaced the old "deemed domicile" rules with a residence-based Foreign Income and Gains (FIG) regime.

Nomad (the visa compliance app for digital nomads) tracks your UK days against every SRT threshold automatically, so you see residency lines before you cross them.

How the UK Statutory Residence Test works

The SRT applies three tests in a strict priority order, and you stop as soon as one gives a definitive answer. HMRC's Residence and FIG Regime Manual describes the structure as: automatic overseas tests first, then automatic UK tests, then the sufficient ties test (Source: HMRC RFIG20000).

1. Automatic overseas tests. If you meet any one of these, you are non-resident for the whole tax year. Stop here.
2. Automatic UK tests. Only check these if no overseas test was met. If you meet any one, you are resident for the whole tax year. Stop here.
3. Sufficient ties test. Only check this if no automatic test was conclusive. The number of UK ties you have, combined with days spent in the UK, decides residency.

The tax year runs 6 April to 5 April. Day-count thresholds reset on 6 April, and your residency status is generally determined for the entire year (with split year treatment as a partial exception, covered below).

Worked example: Sophie is a UK citizen who has been non-resident for four years working in Singapore. She returns to the UK on 1 December 2025 and stays until the tax year ends on 5 April 2026. That is 126 days in the UK. She fails the automatic overseas tests (she spent more than 45 days here), passes no automatic UK test (under 183 days, no UK home she lived in for 30+ days, no full-time UK work), and so falls into the ties test. With more than 120 days, she only needs one UK tie to be resident.

The three automatic overseas tests

You are non-resident for the whole tax year if you meet any one of these tests. They take priority over every other consideration.

First automatic overseas test. You were UK resident in at least one of the three preceding tax years, and you spent fewer than 16 days in the UK during the current tax year (Source: HMRC RFIG20120). This is the "clean break" test for people who have just left the UK.

Second automatic overseas test. You were not UK resident in any of the three preceding tax years, and you spent fewer than 46 days in the UK during the current tax year (Source: HMRC RFIG20130). This is the test for people with no recent UK history, such as foreign nationals visiting on short stays.

Third automatic overseas test (full-time work overseas). You work sufficient hours overseas (roughly an average of 35 hours per week across the tax year, with no significant breaks), you spend fewer than 91 days in the UK, and you work more than three hours in the UK on fewer than 31 days (Source: HMRC RFIG20140). This is the test most commonly used by people relocating abroad for a job.

If none of the three apply, you move to the automatic UK tests.

The three automatic UK tests

You are UK resident for the whole tax year if you meet any one of these.

First automatic UK test. You spend 183 days or more in the UK during the tax year (Source: HMRC RFIG20320). This is the bright-line rule. Once you cross 183 days, nothing else matters.

Second automatic UK test (UK home). You have a UK home for a continuous period of at least 91 days (with at least 30 of those days falling in the tax year), and during that 91-day window you spent at least 30 days in that home, while having either no overseas home or being in any overseas home for fewer than 30 days in the year. This is the test that catches people who keep a UK property and spend modest time there while travelling.

Third automatic UK test (full-time work in the UK). You work full-time in the UK across a 365-day period that overlaps the tax year, with more than 75% of those workdays falling in the UK and at least one workday in the tax year. This catches the inverse of the third overseas test: people who relocate to the UK for employment.

If none of the three automatic UK tests apply, you proceed to the sufficient ties test.

The sufficient ties test

The ties test asks two questions: how many days did you spend in the UK, and how strong are your connections to it? The more ties you have, the fewer days it takes to make you resident. HMRC defines two categories of taxpayer for this test (Source: HMRC RFIG20510):

• Arrivers were not UK resident in any of the three previous tax years.
• Leavers were UK resident in at least one of the three previous tax years.

Leavers face a tougher test because the UK does not want people pretending to have left while keeping strong ties.

The five UK ties

1. Family tie. You have a UK-resident spouse, civil partner, cohabiting partner, or minor child. A child only counts if you spend time with them in the UK on more than 60 days in the tax year.
2. Accommodation tie. You have UK accommodation available to you for a continuous 91-day period and spend at least one night there in the tax year. Accommodation owned by close family members (parents, siblings, adult children) only counts if you spend 16 or more nights there.
3. Work tie. You work in the UK for at least 40 days in the tax year. A workday is any day you do more than three hours of work in the UK.
4. 90-day tie. You spent more than 90 days in the UK in either of the two previous tax years.
5. Country tie. The UK is the country you spent the most midnights in during the tax year. This tie applies only to leavers.

The days-versus-ties table

The required ties scale with days spent in the UK:

A leaver who spends just 16-45 days in the UK can still be resident if they keep four ties. An arriver under 46 days is always non-resident regardless of ties. This is the asymmetry HMRC uses to make it harder to leave than to stay away.

Day-counting rules: the midnight rule and the deeming rule

A day counts toward your UK total if you are in the UK at midnight. This is the midnight rule. Arrive in London at 7 AM and leave at 8 PM the same day and that day does not count. Arrive at 11:30 PM and the day counts because you were on UK soil when the clock struck midnight.

Two key exceptions and one anti-avoidance rule modify the midnight count:

• Transit days. A day spent in the UK purely while in transit between two non-UK locations does not count, provided you do not engage in activities unrelated to transit.
• Exceptional circumstances. Days you are unable to leave the UK due to events beyond your control (illness, national emergency, similar) can be disregarded, capped at 60 days per tax year.
• The deeming rule. Frequent visitors with substantial UK ties cannot game the midnight rule. If you have three or more UK ties, have been UK resident in at least one of the prior three tax years, and have more than 30 "qualifying days" (days you were in the UK at any point but left before midnight), every qualifying day above 30 counts toward your day total.

The deeming rule is the trap most overlooked by frequent UK visitors. You can fly into Heathrow weekly for meetings, leave the same evening, and still rack up countable days if you trigger the rule. We covered the broader logic of day-counting traps in the 183-day rule explained.

Split year treatment

Split year treatment lets you be treated as UK resident for only part of the tax year - typically the year you arrive or leave. Without it, moving to the UK on 1 March would make you resident for the entire tax year back to the previous 6 April, even though you were nowhere near the UK for 11 months.

HMRC's manual identifies eight specific cases that qualify for split year treatment (Source: HMRC RDRM12000). Three cover leaving the UK:

• Case 1: Starting full-time work overseas.
• Case 2: Partner of someone starting full-time work overseas.
• Case 3: Ceasing to have any home in the UK.

Five cover arriving in the UK:

• Case 4: Starting to have a UK-only home.
• Case 5: Starting full-time work in the UK.
• Case 6: Ceasing full-time work overseas.
• Case 7: Partner of someone ceasing full-time work overseas.
• Case 8: Starting to have a UK home.

Split year treatment is automatic if you meet a case - you do not elect into it - but HMRC applies the cases in a specific priority order if you meet more than one. The exact split date depends on the case (the day you start the overseas job, the day you cease to have a UK home, and so on).

Deemed domicile and the 2025 FIG regime

For tax years before 2025-26, the UK used the concept of "deemed domicile" to capture long-term non-doms. Anyone resident in the UK for 15 of the previous 20 tax years became deemed UK domiciled for income tax, capital gains tax, and inheritance tax purposes, losing access to the remittance basis.

The Autumn Budget 2024 abolished both the non-dom regime and the 15-of-20 deemed domicile rule with effect from 6 April 2025. The system is now residence-based (Source: HM Treasury Technical Note).

The replacement is the Foreign Income and Gains (FIG) regime, which gives qualifying new UK residents four years of tax exemption on foreign income and gains. To qualify, you must become UK resident after at least 10 consecutive tax years of non-UK residence. For inheritance tax, "long-term resident" status (UK tax resident for 10 of the last 20 years) replaces deemed domicile.

The practical effect for long-term travelers: spending too many years in the UK still has consequences, but the consequence now triggers at the 10-year mark for inheritance tax, not the old 15-year mark.

Common mistakes nomads make with the SRT

Forgetting the prior-year qualification on the overseas tests. The first automatic overseas test (under 16 days) only works if you were UK resident in one of the past three years. People assume that under 16 days in the UK always equals non-resident. For arrivers with no UK history, you need to be under 46 days, not 16.

Counting nights instead of days. Day counts are based on midnight presence in the UK, not on the nights you slept somewhere. Arriving Sunday evening and leaving Tuesday morning is two days, not one night.

Ignoring the deeming rule. Frequent UK visitors with ties often think they can avoid residency by leaving before midnight on every visit. The deeming rule catches this if you have three or more ties and were recently resident.

Treating accommodation owned by family as "not yours". A spare room at your parents' house can be an accommodation tie if you stay there 16 or more nights in the tax year. The test is not ownership; it is availability and use.

Assuming a single year abroad breaks residency. Leavers face the harder side of the ties test for three tax years after departure. One clean tax year overseas does not reset your status under the SRT. We covered the wider playbook for cutting residency in our guide on how to become non-resident for tax purposes.

How Nomad tracks your UK SRT thresholds

Nomad's automated day counting tracks every UK midnight against the SRT thresholds that apply to you. The app knows whether you are an arriver or a leaver (based on your residency history), watches the 16, 46, 91, 121, and 183-day lines, and sends alerts before you cross any of them. You see your remaining "safe" days for each threshold instead of running calculations manually at year-end.

The in-app AI assistant answers SRT questions in plain English, including ties-test scenarios and split year eligibility. Passport details stay encrypted on your device. Only travel dates and country information sync to the cloud, so your residency history is never exposed to third parties.

Download Nomad on the App Store

Frequently Asked Questions

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

If you were not UK resident in any of the three previous tax years, you can spend up to 45 days in the UK and remain automatically non-resident under the second automatic overseas test. Above 45 days, you fall into the sufficient ties test, where the safe day count depends on your UK ties. With zero ties as an arriver, you can spend up to 182 days before automatic residency kicks in at 183. With four ties, the limit drops to 45 days. Previously resident "leavers" face stricter thresholds starting at just 16 days.

What is the difference between an "arriver" and a "leaver" in the UK SRT?

An arriver is someone who was not UK tax resident in any of the three tax years immediately before the relevant tax year. A leaver is someone who was UK tax resident in at least one of those three years. Leavers face stricter sufficient ties test thresholds and have access to a fifth tie (the country tie). The asymmetry is intentional: HMRC wants to make it harder to claim non-residence after recent UK residence, to prevent short tax-motivated departures.

Does the UK 183-day rule apply to the calendar year or the tax year?

The UK tax year, not the calendar year. The UK tax year runs from 6 April to 5 April. All SRT day counts (16, 46, 91, 121, 183) and tie thresholds are measured within this window. A trip from late March through early May straddles two tax years and counts in both for the relevant thresholds. This differs from countries that use the calendar year for residence tests, such as Spain, Portugal, France, and Germany.

What is split year treatment and do I need to apply for it?

Split year treatment lets you be treated as UK resident for only part of the tax year you move in or out of the UK, instead of the whole year. It applies automatically if you meet one of HMRC's eight specific cases (three for leaving, five for arriving). You do not elect into split year treatment, but you must claim it on your self-assessment return using form SA109. The exact date your year splits depends on which case applies.

Was the UK non-dom and deemed domicile rule abolished?

Yes. The non-dom regime and the 15-of-20-years deemed domicile rule were abolished with effect from 6 April 2025. They were replaced by a residence-based system. The new Foreign Income and Gains (FIG) regime gives qualifying new UK residents a four-year window of tax relief on foreign income and gains, provided they were non-resident for the prior 10 tax years. For inheritance tax, a "long-term resident" test applies after 10 of the previous 20 tax years of UK residence.

Related guides

• The 183-day rule explained
• How to become non-resident for tax purposes
• Tax residency statistics for expats 2026
• US substantial presence test: full guide

About Nomad

Nomad is the visa compliance app for digital nomads. Built by nomads for nomads, it tracks your days across every country automatically, alerts you before overstays, and keeps passport details on your device for privacy. The in-app AI assistant answers visa questions in plain English. Available on iOS.

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Important: This content is informational and does not constitute legal, tax, or immigration advice. Visa rules, tax regulations, and entry requirements change frequently and vary by individual circumstances. Always verify current requirements with official government sources or a qualified professional before making travel decisions. Nomad tracks your days and surfaces compliance information, but final responsibility for compliance rests with the traveler.