One income, two residencies and endless questions – can you be tax resident in more than one jurisdiction?

One of the fundamental building blocks of the UK tax system is the concept of tax residence. It determines the scope of an individual’s exposure to UK taxation: broadly, UK residents are taxed on their worldwide income and gains, whereas non-residents are generally only subject to UK tax on UK-source income (such as UK rental income) and certain UK gains. 

How is UK residence determined? 

UK tax residence is assessed on a tax year basis (6 April to the following 5 April) under the Statutory Residence Test (SRT). The SRT applies a structured, sequential framework:

• Automatic overseas tests (non-residence).
• Automatic UK residence tests.
• Sufficient ties test (applied only if neither of the above is conclusive).

The tests are applied in order and once an individual meets the criteria of a test, no further analysis is required.

The automatic tests are primarily driven by day count and historical residence status. Where these do not provide a definitive answer, the sufficient ties test considers connections to the UK, such as accommodation, family, work and prior presence and determines the number of days an individual can spend in the UK before becoming resident.

Can you be tax resident in more than one country?

Yes. UK domestic law does not prevent an individual from being simultaneously tax resident in another jurisdiction. This is particularly common for internationally mobile individuals with cross-border ties.

Where dual residence arises, the position is resolved by reference to the relevant Double Taxation Agreement (DTA) between the two countries.

How do Double Taxation Agreements resolve dual residence?

DTAs contain ‘tie-breaker’ provisions which allocate an individual’s residence to one jurisdiction for treaty purposes. These typically apply in the following order:

1. Permanent home.
2. Centre of vital interests (personal and economic connections).
3. Habitual abode.
4. Nationality.
5. Mutual agreement between tax authorities (if required).

The outcome determines the individual’s treaty residence position, which then governs how income and gains are taxed between the two countries.

Importantly, treaty residence does not override domestic residence status but determines how taxing rights are allocated and how double taxation is relieved.

A dynamic position requiring ongoing review

Treaty residence is fact-dependent and can change annually. Shifts in lifestyle, working patterns, or family arrangements can alter the outcome of the tie-breaker tests.

For internationally mobile individuals, it is therefore essential to assess both domestic residence positions and analyse treaty residence each tax year.

Failure to do so can result in unexpected tax exposure or missed relief opportunities.

Final thought

Dual residence is not unusual, but misunderstanding it can be costly. A clear, joined-up analysis of domestic rules and treaty provisions is essential to ensure the correct tax treatment.

If you need support with residence analysis, treaty interpretation, or cross-border tax planning, please get in touch with one of our experts.

Last updated: 01.05.2026