RDRM25010 | Domicile:Deemed domicile: Introduction

From 6 April 2025, the concept of domicile as a relevant connecting factor in the tax system has been replaced by a system based on tax residence. This guidance remains for reference purposes only.

Prior to 6 April 2017 individuals who were resident but not domiciled in the UK under common law: (See RDRM22000)

• were liable to UK tax on all income and capital gains which arose in the UK

• could claim the remittance basis and would only pay UK tax on their foreign income and capital gains if/when they were remitted to the UK

• were able to claim tax relief on overseas workdays during the first 3 years they were resident in the UK.

2017 Changes

From 6 April 2017 new deemed domicile rules came into force which change the way such individuals are taxed. The new deemed domicile provisions are that an individual who is not domiciled in the UK at common law will be treated as domiciled in the UK for all tax purposes. To become deemed domicile one of two conditions must be met - Condition A or Condition B. (Chapter 2 Part 14 ITA 2007 section 835BA)

There are already existing deemed domicile rules for Inheritance Tax, but these are also changing. These rules differ to the income tax and Capital Gains tax rules and you should refer to the relevant IHT guidance for details.