US Expat Taxes in United Kingdom
The United Kingdom is one of the most popular destinations for American expatriates, with an estimated 250,000 US citizens residing across England, Scotland, Wales, and Northern Ireland. While the US-UK tax treaty provides significant relief from double taxation, the interaction between HMRC and IRS rules creates unique challenges. From ISA accounts to UK pensions, understanding cross-border obligations is critical.
Tax Treaty Information
- Reduced withholding rates on dividends (0-15%), interest (0%), and royalties (0%)
- Pension provisions allowing favorable treatment of UK workplace pensions
- Savings clause preserving US right to tax its citizens with limited exceptions
- Capital gains provisions with principal residence exemptions
- Self-employment income coordination provisions
FBAR & FATCA Requirements
US citizens in the UK must report all UK bank accounts, ISAs, investment accounts, and pension accounts on the FBAR if the aggregate value exceeds $10,000 at any time during the year. UK financial institutions report US person accounts to HMRC under the UK-US FATCA intergovernmental agreement, which is then shared with the IRS. Form 8938 thresholds for expats living abroad are $200,000/$300,000.
Foreign Earned Income Exclusion (FEIE)
US expats living in the UK can qualify for the Foreign Earned Income Exclusion by meeting the Bona Fide Residence Test or Physical Presence Test. However, since UK income tax rates (20%-45%) are comparable to US rates, many expats find the Foreign Tax Credit more advantageous.
Need Expert Help Filing from United Kingdom?
Our Enrolled Agents specialize in US expat tax filing and can ensure you're fully compliant with both US and United Kingdom tax obligations.
Common Tax Issues in United Kingdom
- 1ISA (Individual Savings Account) investments are fully taxable for US purposes despite being tax-free in the UK
- 2UK mutual funds and unit trusts are often classified as PFICs for US tax purposes
- 3UK State Pension and workplace pensions have complex US reporting requirements
- 4National Insurance contributions and US self-employment tax coordination
- 5Council Tax is not creditable as a foreign tax credit on US returns
- 6UK tax year runs April 6 to April 5, creating timing mismatches with the US calendar year
Filing Deadlines
Local Tax Rates
20%-45%
10%-20% (18%-24% for residential property)
20%
Local Resources
US Embassy in London
Consular services for US citizens in the United Kingdom
HMRC
UK tax authority for local filing obligations
IRS International Taxpayers
IRS resources for US citizens abroad
Frequently Asked Questions: US Taxes in United Kingdom
Are my UK ISA savings taxable in the US?
How is my UK pension treated for US taxes?
Do I need to pay National Insurance and US Social Security?
What is the UK-US tax treaty savings clause?
Related Country Guides
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