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  • UK Tax Resident Tax Advice & Help

    A person’s residence status – and specifically for the purposes of this article, whether they are UK tax resident – is incredibly important.

    It determines what taxes are payable and the quantum of such payments.

    With this in mind, one might be slightly surprised that it took until the 6 April 2013 for the legislators to create a statutory residence test (“SRT”) to determine if an individual is UK tax resident.

    Prior to this, it was generally a patchwork of case law – new, old and very old – which determined whether someone was UK tax resident, along with HMRC’s long standing guidance set out in IR20.

    Residence status – liability to taxes
    Tax UK resident Not UK resident
    Income tax (IT) Subject to UK IT on worldwide income Subject to UK IT on UK income only
    Capital Gains Tax (CGT) Subject to UK CGT on worldwide chargeable gains Not subject to UK CGT on gains (other than residential property since 6 April 2015)
    Inheritance Tax (IHT) Residence only indirectly affects IHT – only determining perhaps whether a person is ‘deemed domiciled’ for IHT purposes

    An overview of the SRT

    The SRT has created a lot of criticism.

    The rules can be quite complex. However, modern life is very complex. This contrasts with the case law (on which many cases were being determined) that was decades, and in some cases centuries, old.

    Of course, under this old case law any international business involved time-consuming and expensive journeys overseas. However, now it is now exceedingly easy to travel to far flung countries in the pursuit of commerce.

    The SRT aims to set out a number of objective tests. Even where the application of these test can be quite complex, where one can be confident you fall within the ‘right side of the line’ then one can plan with certainty that one is UK tax resident or otherwise. Previously, this was not necessarily the case.

    In our view, where one has certainty where previously there was none, then this must be an improvement on the old state of affairs.

    The ‘SRT Roadmap’

    The SRT can be thought of as a road map. However, it is a set of directions where one does not know the destination until one has arrived.

    The first stage is to determine whether one satisfies one of the ‘Automatic Overseas’ tests (“AO Tests”). If one does qualify as being ‘automatically overseas’ then, unsurprisingly, one is found to be non-UK resident. One can consider the SRT journey over at this point.

    If one does not meet one of the AO Tests, then you embark on the next leg of the journey. This step will seek to determine whether you satisfy the Automatic UK Tests (“AUK Tests”). If one of the tests is met then the individual is UK resident. Again, one’s journey is complete.

    However, if one has not met either of the above tests, then the journey continues on to a third and final stage.

    This involves considering whether one has ‘sufficient ties’ to the UK. The sufficient ties test is essentially a ‘day counting’ exercise. The rule of thumb is that the more ‘ties’ one has to the UK then the less days one can spend in the UK without becoming UK resident.

    These thresholds differ depending on whether you are trying to ‘leave’ the UK or are a ‘visitor’.

    1. The Automatic Overseas (AO) Tests

    Technically, the legislation sets out five tests. However, from a practical perspective, there are really two tests here – one totting up days in the UK and the other identifying whether one works abroad on a full-time basis.


    As noted above, the day count test will differ depending on whether we are talking about someone leaving the UK (“Leaver”) or someone coming to the UK (“Visitor”):

    • A Visitor is automatically non-UK resident if his days in the UK for the tax year are less than 46;
    • A Leaver presents a slightly more complex position. The general rule is that he will be non-UK resident if his days in the UK number less than 16. However, in certain circumstances single day visits to the UK (i.e. no presence at midnight) can count towards the days.

    Full-time work abroad

    In the pre SRT days, this was often the most certain method of becoming non-UK resident. It is good to see that this remains in a relatively undisturbed form.

    However, the test is perhaps slightly more complex than it might be. This is largely as a result of the second part of the test, where one is seeking to determine whether the overseas work is full-time or not.

    First of all, the individual must meet a ‘threshold’ condition. This requires the following:

    • The number of midnights spent by the individual in the UK must be less than 91; and
    • The number of days performing 3 hours of work or more in the UK must be less than 31.

    Assuming the threshold condition is met, we then need to go through a step by step calculation to see if the remainder of the test is satisfied.

    In the first instance, one must work out the taxpayer’s ‘net overseas hours’. Essentially, this is total overseas hours worked by the individual in the year, less any ‘UK work hours’. UK work hours are only deducted if the person worked more than three hours in the UK on a particular day (a UK work day).

    A ‘reference period’ is then calculated by deducting the number of UK work days and days of holiday / sickness from 365 days.  This reference period is then divided by seven to give a ‘number of weeks’.

    The final step is then to divide the ‘net overseas hours’ by the ‘number of weeks’.

    If the result of this rather laborious calculation results in 35 or more then the test is met.

    2. The Automatic UK (“AUK”) Tests

    As outlined, if one does not meet the AO Test then, and only then, do we move on to the AUK test. There are three limbs under which one might automatically be resident in the UK. These are as follows:

    • A day-counting test;
    • A home test; and
    • Another full-time work test

    Day counting

    First of all, and quite simply, if a person spends 183 or more days in the UK then this is a point of no return. That person will always be considered as resident in the UK. Period.

    Home test

    The second limb of the AUK test is the ‘home test’. For ‘home test’ it is perhaps better to think about it as the ‘only home test’.

    The test can be a confusing if one looks at it in depth, however, in general, one will meet the ‘home test’ in circumstances if you:

    • have a home in UK and spend at least thirty days or part days in it; and
    • do not have an overseas home (this second limb is a bit more nuanced than this but this gives you the gist).

    In summary, one needs to have a UK home and not have an overseas home.

    Full time work test

    This test is almost exactly as the full-time work test under the AO Test.

    However, and rather intuitively, in this context its purposes is to assess the work days in the UK. Therefore, we are interested in ‘net UK hours’ rather than ‘net overseas hours’.

    If the final answer which pops out of the sausage machine is 35 or more then, this time, one is UK resident.

    The key difference is that the reference period may be a 365-day period which is non-coterminous with the tax year.

    If one does not come to an answer after reviewing the AUK tests then you move on to the ‘Sufficient ties’ test.

    3. Sufficient ties test

    This test involves applying a day count to a specific threshold.

    That threshold is a movable feast and is higher or lower depending on the number of ties one has with the UK. The more ties, the fewer days one may spend in the UK without being treated as resident for tax purposes.

    It is first worth considering what constitutes a ‘tie’:

    • Family tie: A person has a family tie where a member of his family is UK resident. Broadly, family will only include a spouse and minor children.
    • Accommodation tie: A person will have an accommodation tie in the UK if he or she has property available for his use in the UK.
    • Work tie: if the individual performs more than three hours work in the UK on 40 or more days in the tax year he will have a work tie.
    • 90-day tie: if the individual spent 91 days or more midnights in the UK in one or both of the two prior years then he will have a 90-day tie.

    There is, of course, much more depth and nuance to the definition of these ties. However, such detail is outside the scope of this article.

    In addition, for ‘leavers’, there is a fifth potential tie which will be triggered where the personal has spent more midnights in the UK than in any other country.

    The thresholds differ depending on whether one is a ‘leaver’ or an ‘arriver’. In summary, it is harder to escape from the UK, than it is for a visitor to become UK resident.

    Am I a UK tax resident leaver: The day counts which results in a person becoming UK tax resident
    If have 4 ties 16-45 per year
    If have 3 ties 46-90 per year
    If have 2 ties 91-120 per year
    Am I a UK tax resident visitor: The day counts which results in a person becoming UK tax resident
    If have 4 ties 46-90 per year
    If have 3 ties 91-120 per year
    If have 2 ties 121-182 per year

    Enterprise Tax Consultants can help you determine if you are UK tax resident

    Under the old rules, all we had to assist us in establishing an individual’s residence status was an unsatisfactory ‘patchwork’ of case law and HMRC’s published guidance.

    However, it was clear from seminal cases like Gaines-Cooper that even HMRC’s guidance was beginning to creak at the seams.

    Since the 2013/14 tax year, we have had cold hard legislation. It is not simple by any means as it is designed to catch a wide range of complex, modern practices. In our modern world, simplicity is probably too much to ask.

    However, regardless of complexity, we do have some hard and fast rules. This will present some readily identifiable safe harbours in which a person can shelter if the fact pattern permits.

    If you need any assistance in determining whether you are UK tax resident, or whether you are not UK tax resident, then please get in touch.