SRT has a three-part core structure and special rules (not covered in this note) also apply to international transport workers and individuals who die in the tax year in question. Here we discuss the basics, however professional advice should be sought as the detail on some of the parts of the test can be complex.
SRT applies on a tax year by tax year basis, being from 6 April in one year until the following 5 April. The first step is to consider the criteria in the Automatic Overseas Test and if any one of these applies, the individual will be conclusively non-resident. If none of the criteria of the Automatic Overseas Test applies then it is necessary to consider the Automatic UK Test. If any one of the Automatic UK Test criteria applies, the individual will be conclusively resident for the year.
If none of the Automatic Overseas or UK tests apply, it is then necessary to determine the individual’s residence status for the year through the Sufficient Ties Test.
For the purpose of these tests, a day in which at least three hours of work is undertaken counts as a full work day in the UK.
The numbers of ties and days in the UK in the tax year combine as follows:
| Number of days spent in UK | SRT status |
| Fewer than 46 days | Always non-resident |
| 46-90 days | Resident if 4 or more factors |
| 91-120 days | Resident if 3 or more factors |
| 121-182 days | Resident if 2 or more factors |
| 183 days or more | Always resident |
| Number of days spent in UK | SRT status |
| Fewer than 16 days | Always non-resident |
| 16-45 days | Resident if 4 or more factors |
| 46-90 days | Resident if 3 or more factors |
| 91-120 days | Resident if 2 or more factors |
| 121-182 days | Resident if 1 or more factors |
| 183 days or more | Always resident |
A transitional rule allows an individual to use the SRT to determine residence status for years prior to 2013/14 (for example, to determine whether the individual is a leaver or arriver), but only for the purpose of the SRT. The SRT cannot change the individual’s actual residence status for those earlier years.
Presence in the UK at midnight on a particular day constitutes a day of residence, unless the individual is in transit through the UK, provided that the individual does not engage in any work or social activity whilst in the UK.
However, there is a deeming rule aimed at people who spend a substantial number of days in the UK without being present at midnight. This applies to leavers with three or more ties to the UK who are present in the UK on more than 30 days without being present at midnight on those days (qualifying days). Any qualifying days in excess of 30 are deemed to be days in the UK for SRT day counting purposes.
So if a leaver with three ties was present in the UK for 35 midnights in a year, but also a further 55 qualifying days, his day-count would be 60 days, making the individual UK resident for that year.
In counting days of presence in the UK, those resulting from exceptional circumstances can be ignored subject to a maximum of 60 days. Exceptional circumstances normally apply when the individual has no choice concerning the time they spend in the UK, or in returning to the UK, and where the situation is outside of their control. HMRC guidance gives examples of a sudden life-threatening illness or injury to the individual or a spouse, partner or dependent child, or local or national emergencies such as civil unrest, natural disaster or the outbreak of war.
Life events such as birth, marriage, divorce and death are not routinely regarded as exceptional circumstances. Neither is choosing to come to the UK for medical treatment, or having to remain in the UK as a result of travel delays or cancellations.
HMRC guidance issued in August 2020 confirmed that the following reasons can be considered as exceptional circumstances for individuals who spent time in the UK as a result of the pandemic:
A specific exception was also introduced for medical or healthcare professionals and scientists who were present in the UK for purposes connected to the detection, treatment or prevention of COVID-19. Such individuals can ignore any days in the UK between 1 March 2020 and 1 June 2020 inclusive provided they were resident in another jurisdiction in that tax year. These days do not count towards the 60-day limit. Such exceptions may be important to consider when reviewing an individual’s historic residence position.
A day in which more than three hours of work is undertaken in the UK counts as a work day in the UK, irrespective of the nature of the work. Similarly, an overseas workday is a day on which more than three hours of work is undertaken outside the UK. For this purpose, work-related training, work-related travel and work undertaken whilst commuting all count as work.
Although the SRT generally determines a person’s residence for a whole tax year, in certain circumstances the year may be split into periods of residence and non-residence. Detailed conditions apply in each case, but the tax year may be split where an individual:
Split year treatment can also apply to a spouse or partner accompanying an individual transferring to work overseas or in the UK.
Anti-avoidance legislation aims to prevent people from using short periods of non-residence to realise capital gains or receive income free of tax. If an individual has been a UK resident in four of the seven years prior to departure and resumes residence within five years, they will be taxable in the year of return on any of the following that arise during the period:
Overseas workday relief (OWR) was previously available to UK resident non-domiciled employees for the year of arrival in the UK and the following two years. Employment income relating to overseas workdays was not chargeable to UK tax if paid offshore and not remitted to the UK.
From 6 April 2025, eligibility to OWR follows the new Foreign Income & Gains (FIG) regime and therefore applies in the year of arrival and the following three years. An OWR claim is required under the FIG regime, resulting in the loss of the income tax personal allowance and capital gains tax annual exemption for the year of claim. Foreign income losses and foreign capital losses of the year of claim will also not be allowable.
There is no requirement for the earnings relating to overseas workdays to be paid and retained offshore, which was the case before 6 April 2025. OWR is however subject to an annual cap at the lower of 30% of the employee’s income from the employment to which the OWR claim relates, or £300,000.
There are a number of factors to be considered with an individual's tax residence, we recommend you seek professional advice as some of the parts of the test can be complex. For more information on the points discussed in this article or to find out more about how we can help, please get in touch with your usual Crowe contact.