Question to the HM Treasury:

To ask His Majesty's Government what assessment they have made of the number of non-domiciled individuals who have left the UK since the Autumn Budget 2024, and what estimate they have made of any reductions in tax revenue as a result.

Official Statistics around non-domiciled taxpayers in the UK [1] will be published in July 2025, and this will include information about taxpayers who claim non-domiciled status in the UK for the tax year 2023-24.

A supplementary forecast information release around the costings of reforms to the non-domicile regime was published by the Office for Budget Responsibility in January 2025 [2]. This costing outlines the certified impact of ending the non-domiciled tax status on revenues to the Exchequer.

[1] https://www.gov.uk/government/statistics/statistics-on-non-domiciled-taxpayers-in-the-uk

[2] https://obr.uk/docs/dlm_uploads/Non-doms-supplementary-release-Jan-2025.pdf