Resources
Everything here is written to be genuinely useful before you ever speak to us — and honest about where general information stops and advice begins.
Guides & articles
Long-form answers to the questions expats actually ask — reviewed, dated and sourced.
OpenUS & UK tax deadlines
One calendar for both systems: IRS and HMRC dates that matter for internationally connected filers.
OpenUS–UK tax glossary
Two systems, two vocabularies. Each term explained with its closest equivalent across the Atlantic.
OpenTools & checkers
Rules-based checkers for filing obligations — honest about what a tool can and cannot tell you.
OpenFAQs
Short answers to the most common US–UK tax questions, linked to the deep guides.
OpenLatest
Recent guides
Compliance · 4 min read
Behind on US Taxes: What Does the Streamlined Path Back Look Like?
A walk through the Streamlined Foreign Offshore Procedures from the taxpayer's side: who qualifies, the three years of returns and six years of FBARs, the non-wilful certification, what it costs, and why most people owe less than they fear.
Learn moreUS Expat Tax · 4 min read
Do I Still Have to File US Taxes if I Live in the UK?
Yes, usually — the US taxes by citizenship, not residence. Who has to file from the UK, what the deadlines really are, why most expats owe little or nothing, and what to do if you have missed years.
Learn moreUS Expat Tax · 4 min read
FEIE or Foreign Tax Credit: Which Works Better in the UK?
Americans in the UK can shield income with the foreign earned income exclusion or the foreign tax credit — but not always both, and the choice is sticky. Why the credit often suits high-tax Britain, what revoking the FEIE commits you to, and why there is no universal answer.
Learn morePensions & Investments · 4 min read
Why Is My ISA a Tax Trap as a US Citizen?
ISAs are tax-free to HMRC but invisible as a shelter to the IRS — and the funds inside a stocks and shares ISA are usually PFICs, taxed under a punitive US regime with heavy reporting. What the IRS sees, and what to check before you invest.
Learn moreUS–UK Tax · 4 min read
What Should You Know Before Selling Your UK Home as a US Citizen?
The UK may exempt your home sale entirely while the IRS taxes part of it. How private residence relief and the US $250,000/$500,000 exclusion differ, why currency movement can create a US gain on its own, and the UK's 60-day reporting rule.
Learn morePensions & Investments · 4 min read
What Happens to Your 401(k) When You Move to the UK?
You generally cannot transfer a 401(k) into a UK pension — but you can keep it, grow it and draw it from Britain. How the US–UK treaty treats withdrawals, why lump sums are different, and the decisions worth making before the first payment.
Learn moreTalk to a US–UK tax specialist
Tell us about your situation and we’ll explain your position across both systems — what you need to file, what you can plan around, and what it will cost.
Or call +44 20 8064 3580 — we’ll tell you honestly whether you need help.