Free Tax Calculator · 2026/27
Statutory Residence Test Calculator 2026/27
Find out whether you are UK tax resident for 2026/27, which test decides it, and how many more days you can spend in Britain — then check the US substantial presence test and the treaty position side by side.

Your history
Your 2026/27 days
Your UK connections
Work and home
Cross-border
Your 2026/27 result
UK resident
Decided by the Sufficient ties test (2 of 2 ties needed).
Most UK midnights you can spend and stay non-resident
90 days
You are 10 days over that limit on the facts entered.
US substantial presence test
Dual resident. Article 4 of the US–UK treaty breaks the tie: permanent home, then centre of vital interests, habitual abode and nationality.
Estimate for the 2026/27 UK tax year (6 April 2026 – 5 April 2027) under Schedule 45 Finance Act 2013 and HMRC guidance RDR3. US test uses calendar years. Does not model split year treatment, the tests for those who die in the year, transit days or temporary non-residence. Not personal advice.
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How the Statutory Residence Test Calculator works
This statutory residence test calculator applies the three stages of Schedule 45 in the order the law requires. It first checks the automatic overseas tests, because meeting any one of them makes you non-resident outright. If none applies, it checks the automatic UK tests. Only when neither stage settles the answer does it turn to the sufficient ties test, matching your UK day count against the number of ties you hold.
Most online residence checkers stop at a yes or no. That answer is useful, but the question a mobile client actually asks is how many more days they can spend in London this year. The calculator re-runs the test for every possible day count and reports the highest one that keeps you non-resident, with your ties held constant.
The automatic tests for 2026/27
You are automatically non-resident if you spend fewer than 16 days in the UK having been resident in any of the previous three tax years, fewer than 46 days having been resident in none of them, or if you work full-time overseas with fewer than 91 UK days and fewer than 31 days of more than three hours’ UK work. You are automatically resident if you spend 183 days or more here, if your only home is in the UK, or if you work full-time in the UK over a 365-day period.
The sufficient ties tables
For leavers, four ties make you resident from 16 days, three from 46 days, two from 91 days and one from 121 days. For arrivers, all four available ties are needed from 46 days, three from 91 days and two from 121 days. The ties are family, accommodation, work, the 90-day tie and, for leavers only, the country tie. Because the 90-day tie looks back two years, a busy UK year can make the following year harder to manage.
The deeming rule adds a twist for commuters. A leaver with at least three ties who is in the UK on more than 30 days without staying until midnight has every such day after the 30th counted as a UK day. Enter those days separately above and the calculator adds them for you.
UK and US residence together
The US uses a completely different measure. The substantial presence test counts calendar years, needs at least 31 US days in the current year and a weighted total of 183, and ignores ties. A British executive who splits time between New York and London can easily be resident in both countries at once, which is when Article 4 of the US–UK treaty decides where they are resident for treaty purposes.
For Americans the picture changes again. A US citizen is taxed by the US wherever they live, so the SRT only decides whether the UK taxes them too. An American arriving after ten years outside the UK may claim the 4-year foreign income and gains regime, which removes UK tax on foreign income but does nothing for the US return. That is why we model both sides of the Atlantic before a move.
Use this statutory residence test calculator to plan your day count, then let our cross-border team review your ties, split year position and US filing together before the tax year ends.
Common Questions
Statutory Residence Test Calculator — FAQs
What is the statutory residence test?
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The statutory residence test (SRT) is the law in Schedule 45 of the Finance Act 2013 that decides whether you are UK tax resident for a tax year. It runs in three stages: the automatic overseas tests, then the automatic UK tests, then the sufficient ties test, which weighs the days you spend in the UK against your connections to it. The 2026/27 tax year runs from 6 April 2026 to 5 April 2027.
How many days can I spend in the UK without becoming tax resident?
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There is no single number. If you were UK resident in any of the previous three tax years you are automatically non-resident below 16 days; if you were not, the limit is 45 days. Above that, your safe day count depends on how many UK ties you have, falling to 120 days with two ties as an arriver or 90 days with two ties as a leaver. This calculator works out your personal limit.
Is it true that you can spend 182 days in the UK and stay non-resident?
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Only in narrow cases. 183 days makes you automatically resident, but someone who left the UK can be resident on as few as 16 days with four ties, and on 121 days with just one tie. The 182-day rule of thumb belongs to the pre-2013 regime and catches out many returning expats.
What counts as a day in the UK?
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A day counts if you are in the UK at midnight at the end of it. Days spent purely in transit, where you arrive as a passenger and leave the next day without doing unrelated business, are ignored. Days you are forced to stay by exceptional circumstances beyond your control, such as a sudden illness or a national emergency, can be excluded up to a cap of 60 days a year.
What are the five UK ties?
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The family tie (a UK-resident spouse, partner or minor child, though a child you see in the UK on fewer than 61 days does not count), the accommodation tie (a UK place available for at least 91 continuous days that you use for at least one night, or 16 nights at a close relative’s home), the work tie (40 or more days doing more than three hours’ work in the UK), the 90-day tie (more than 90 UK days in either of the two previous tax years) and the country tie (more midnights in the UK than in any other single country). The country tie only applies to leavers.
What is the difference between an arriver and a leaver?
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HMRC’s tables split people by history. If you were UK resident in at least one of the three previous tax years (2023/24, 2024/25 or 2025/26 for this year) you use the leaver table, which needs fewer ties and counts the country tie. If you were non-resident in all three, you use the arriver table, which needs more ties and starts at 46 days.
What is the deeming rule?
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If you were UK resident in one of the previous three years, have at least three UK ties and are in the UK on more than 30 days without being here at midnight, every such day beyond the 30th is counted as a UK day. It targets frequent commuters who fly out each evening. Deemed days are ignored for the full-time work abroad test but count everywhere else.
How does the full-time work abroad test work?
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You are automatically non-resident if you work full-time overseas, averaging at least 35 hours a week over the year, with no gap of 31 days or more in your overseas work (holiday and sick leave do not count as gaps), and you spend fewer than 91 days in the UK, with fewer than 31 of those days involving more than three hours’ UK work. It does not apply to crews of ships, aircraft or vehicles who cross borders as part of the job.
Can I be UK resident if my only home is in the UK?
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Yes, under the second automatic UK test. If you have a UK home for a period of at least 91 consecutive days, at least 30 of which fall in the tax year, you are present there on at least 30 days, and you have no overseas home or spend fewer than 30 days in any overseas home, you are resident regardless of your day count.
What is split year treatment?
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If you arrive in or leave the UK part-way through a tax year and are resident for that year, split year treatment can divide it into a UK part and an overseas part, so income from the overseas part is generally taxed as if you were non-resident. It applies automatically when you meet one of eight statutory cases, such as starting full-time work abroad or setting up your only home in the UK. You must be resident under the SRT for the year before split year can apply.
Do I become UK resident from the day I arrive?
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Residence is decided for the whole tax year, so without split year treatment you are resident from 6 April even if you arrived in December. That matters for anyone with foreign income or gains earned before the move. Plan the date and structure of your arrival so one of the split year cases applies.
What is the US substantial presence test and how is it different?
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The US test counts calendar-year days, not tax years. You are a US resident if you spend at least 31 days in the US this year and a weighted total of 183 days or more, counting all of this year’s days, one third of last year’s and one sixth of the year before. Unlike the SRT, ties play no part, although a closer connection to another country can be claimed on Form 8840.
Can I be tax resident in both the UK and the US?
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Yes. Each country applies its own law, so it is common to be UK resident under the SRT and US resident under the substantial presence test at once. Article 4 of the US–UK tax treaty then breaks the tie by looking at your permanent home, centre of vital interests, habitual abode and nationality. A US citizen cannot use the tie-breaker to escape US tax because of the treaty’s saving clause.
Does being non-resident in the UK stop the US taxing me?
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No. US citizens and green card holders are taxed on worldwide income wherever they live, so the SRT only decides whether the UK also taxes you. A US citizen who becomes UK resident will usually rely on the foreign tax credit or the foreign earned income exclusion to avoid paying twice on the same income.
What is the 4-year foreign income and gains regime?
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From 6 April 2025 the remittance basis was replaced by the 4-year FIG regime. If you become UK resident after at least 10 consecutive tax years of non-residence, you can claim full relief from UK tax on foreign income and gains for your first four years of UK residence. Americans moving to London often qualify, although the US still taxes that income in full.
Does the statutory residence test decide domicile?
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No. Residence and domicile are separate concepts, and since April 2025 most UK tax rules depend on residence rather than domicile. The SRT decides your residence for income tax and capital gains tax for one tax year at a time.
What records should I keep to prove my UK days?
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Keep a day-by-day diary backed by travel bookings, boarding passes, passport stamps, card statements and work calendars. HMRC can open an enquiry years later, and the burden of proving your day count and ties falls on you. Keep records of working hours too if you rely on the work tie or the full-time work abroad test.
How do I tell HMRC I am non-resident?
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You claim non-residence on the SA109 residence pages of your Self Assessment return, giving your UK days and your ties. If you have left the UK and have no further UK income, you can also notify HMRC with form P85.
Is this calculator a substitute for professional advice?
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No. It applies the 2026/27 statutory tests to your answers but cannot check the facts behind them, and the definitions of home, work and available accommodation are where most disputes arise. It does not model split year treatment, the tests for people who die during the year or the temporary non-residence anti-avoidance rules.
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