When do you become a UK tax resident?

Full answer

Whether you are UK tax resident in a tax year (6 April to 5 April) is determined by HMRC's Statutory Residence Test (SRT), and it is a matter of fact rather than election. The SRT works in three stages. First, the automatic overseas tests can confirm you are non-resident -- for example if you spend very few days in the UK or work full time abroad meeting the conditions. Second, the automatic UK tests can confirm you are resident -- most clearly if you spend 183 or more days in the UK in the tax year, or your only home is in the UK. Third, if neither set of automatic tests is decisive, the sufficient ties test applies: it weighs the number of days you spend in the UK against the number of UK ties you have (a family tie, accommodation tie, work tie, a 90-day tie, and for some people a country tie). The more ties you have, the fewer days you can spend before becoming resident. Counting days correctly matters because a day generally counts if you are in the UK at midnight, with some exceptions. Residence is significant because UK residents are generally taxed on their worldwide income and gains, using the standard bands -- Personal Allowance GBP 12,570, basic rate 20% up to GBP 50,270, higher rate 40%, additional rate 45% -- whereas non-residents are usually taxed only on UK-source income. From April 2025 the old non-domiciled remittance basis was replaced by a residence-based regime, so newcomers should check the current rules. The SRT is detailed and the day-count thresholds within the ties test are not in this card, so confirm your position on gov.uk or with an adviser. Once your residence and income are known, the income tax and take-home pay calculators show the resulting liability.

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