If you live in the UK and earn income from abroad, it’s important to understand how HMRC taxes overseas income. With global tax reporting requirements tightening and information-sharing between countries increasing, UK taxpayers must ensure they are compliant. This guide explains the key rules on how overseas income is taxed in the UK in 2025.
1. Who Needs to Report Overseas Income?
You must report overseas income if you are UK tax resident. This includes income from:
- Foreign employment or self-employment
- Rental income from overseas property
- Interest from foreign bank accounts
- Dividends from overseas investments
- Gains from selling overseas assets (Capital Gains)
- Overseas pensions
Non-residents are usually taxed only on their UK income, not foreign income, though exceptions apply.
2. The Remittance Basis vs Arising Basis
- Arising Basis (default): UK residents are taxed on worldwide income, whether it is brought into the UK or not.
- Remittance Basis: Some UK residents who are domiciled abroad can choose to be taxed only on income/gains brought into the UK. However:
- A loss of personal allowances and CGT exemption may apply.
- Annual remittance basis charges apply after living in the UK for a number of years (£30,000+).
3. Double Taxation Relief
If you’ve already paid tax abroad, you may be able to claim Foreign Tax Credit Relief so you don’t pay tax twice. The relief is limited to the lower of:
- The overseas tax paid, or
- The UK tax due on that income.
The UK has double taxation agreements (DTAs) with many countries, which may reduce or eliminate double tax liability.
4. Overseas Property and Rental Income
- Overseas rental profits must be reported on a UK Self Assessment return.
- Expenses can be deducted, similar to UK rental rules.
- Exchange rates must be applied to report figures in GBP.
5. Capital Gains on Overseas Assets
UK residents must pay Capital Gains Tax (CGT) on worldwide gains, even if proceeds remain abroad. The annual CGT allowance remains at £3,000 in 2025.
6. HMRC Compliance and Disclosure
- HMRC receives overseas financial data under the Common Reporting Standard (CRS).
- Failure to declare foreign income may lead to penalties of up to 200% of the tax due.
- Voluntary disclosure often leads to reduced penalties.
How Eclat Accountancy Can Help
We advise clients with international finances by:
- Determining tax residency and domicile status
- Deciding whether to use the arising or remittance basis
- Claiming double taxation relief correctly
- Ensuring full compliance with HMRC’s overseas reporting rules
Final Thoughts
If you are UK resident, your overseas income is usually taxable in the UK. Understanding how to declare it – and making use of available reliefs – is essential to avoid double taxation and HMRC penalties.
Contact Eclat Accountancy for expert advice on managing your overseas income tax efficiently and compliantly.
