US·UK Accountants

Who we help

Tax help for UK citizens living in the US

As a Briton in the US you'll usually file US federal and state returns on worldwide income, while possibly keeping UK obligations on property, investments or pensions left behind. UK ISAs and funds can trigger punitive US reporting if mishandled. We coordinate both sides — US filing, UK residency and the treaty — so nothing falls through the gap.

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By Sam H., Founder & Lead Advisor

Reviewed by Sarah J. · 2026-01-22

Relocating from the UK to the US brings a tax position most general accountants aren’t equipped for. You step into the US system — federal and state returns on worldwide income — while your UK affairs don’t simply switch off.

The traps are specific and expensive. UK ISAs lose their tax-free status in US eyes, common UK funds are treated as PFICs with heavy reporting, and UK pensions need treaty-aware handling. Get residency and these details right from the start and you avoid years of costly correction.

We help Britons in the US who are…

  • On a work visa or green card in the US
  • Keeping UK property, investments or pensions
  • Unsure of their UK residence status after leaving
  • Holding ISAs or UK funds with US reporting risk
  • Founders or professionals moving for work
  • Wanting one team for both countries

Frequently asked questions

Possibly. It depends on your UK residence status under the Statutory Residence Test, any UK income you keep (such as rental property or a UK business), and how your departure was handled. Many Britons in the US retain some UK filing requirement, and getting residency right is essential.

If you are a US tax resident — typically via a green card or the substantial-presence test — you file US federal and usually state returns on worldwide income. The US–UK treaty and foreign tax credits help avoid double taxation.

This is a common pitfall. ISAs are not tax-free in US eyes and some UK funds are treated as PFICs with punitive US reporting. UK pensions interact with US tax via the treaty. We plan for these specifically.

Yes — that is exactly our model. Rather than a US preparer and a separate UK accountant who never speak, we coordinate both so reliefs line up and you are not taxed twice.

Get both sides handled by one team

Book a free consultation with cross-border specialists.