UK Residence Explained: The Foundations of UK Tax

When people think about UK tax, they often assume it all comes down to where they live. If they’ve moved abroad, they assume they’re no longer taxable in the UK. If they’ve moved here, they expect to pay UK tax on everything from day one.

The reality is much more nuanced.

Before you can work out what tax you pay, the first question is whether you’re actually UK tax resident. It sounds like a simple question, but the answer isn’t always obvious.

Whether you’re relocating to the UK, emigrating overseas, splitting your time between countries or working internationally, understanding your residence status is one of the most important starting points in determining your UK tax position.

What does UK tax residence actually mean?

Your residence status determines how the UK taxes your income and capital gains for a particular tax year.

In general terms, if you’re UK tax resident, you’ll usually be taxed on your worldwide income and gains. If you’re not UK resident, you’ll normally only pay UK tax on certain UK-source income and gains.

Of course, there are exceptions and reliefs available, particularly where international tax rules or the new Foreign Income and Gains (FIG) regime apply, but residence is always the first question that needs answering.

It’s not simply about where you live

One of the biggest myths we hear is that spending fewer than 183 days in the UK automatically means you’re not UK resident.

Whilst the 183-day rule is certainly relevant, it is only one part of a much wider set of rules.

HMRC considers a range of factors, including how much time you spend in the UK, where you work, whether you have accommodation available and what connections (known as “ties”) you have to the UK.

This means two people spending exactly the same number of days here can have completely different residence positions.

We’ll explore exactly how those rules work in our next article on the Statutory Residence Test.

Where does domicile fit in?

Residence and domicile are often mentioned together, but they are separate concepts.

Historically, domicile played a significant role in determining how foreign income and gains were taxed in the UK through the remittance basis.

However, following the introduction of the new FIG regime, domicile is no longer the key determining factor for income tax and capital gains tax.

That said, domicile hasn’t disappeared completely. It can still be relevant for certain areas of UK taxation, particularly inheritance tax, so it’s important not to overlook it.

Why getting your residence status right matters

Your residence position can affect far more than simply whether you complete a UK tax return.

It may determine:

• whether your overseas income is taxable in the UK;
• whether foreign capital gains need to be reported;
• whether you qualify for relief under the FIG regime;
• whether a double tax treaty applies; and
• what reporting obligations you have to HMRC.

Getting it wrong can result in unexpected tax liabilities, missed reliefs or unnecessary reporting obligations.

A practical example

Imagine Joshua accepts a new role in London and moves from New Zealand in October.

He assumes he won’t become UK tax resident until the following tax year because he arrived halfway through the year.

In reality, depending on his circumstances, he could become UK resident during that same tax year. Equally, someone leaving the UK isn’t automatically non-resident simply because they’ve boarded a plane.

Every case depends on the facts, which is why understanding the rules is so important.

Final thoughts

Residence is one of the fundamental building blocks of the UK tax system. Before considering reliefs, exemptions or planning opportunities, you first need to establish whether you’re UK tax resident in the first place.

Once that has been determined, the rest of your UK tax position becomes much clearer.

Next Steps

Need advice on your UK residence or international tax position? Get in touch with ETC Tax and our specialist team will be happy to help.