Who we help
Cross-border tax problems tend to arrive attached to a life, not a form number. Start from the situation that sounds like yours.
Americans in the UK
US citizens living in the UK usually owe two tax returns a year — a US federal return and UK Self Assessment. What each country expects, the classic traps, and how one firm handling both returns keeps them consistent.
Learn moreBrits with US Ties
British residents with US income, property, Green Cards or American spouses often have US filing duties they never expected. What the IRS and HMRC each want, the mismatches that cost money, and when to get cross-border advice.
Learn moreUS–UK Dual Citizens
Dual US–UK citizens are taxed by both countries for life: the US by citizenship, the UK by residence. What each system expects, why the treaty does not switch either off, and how coordinated filing keeps the overlap from costing you money.
Learn moreAccidental Americans
Born in the US and left as a child, or born British to an American parent? You may be a US citizen with filing obligations you never knew existed. What that means, why banks are asking, and the calm, penalty-managed way to resolve it.
Learn moreGreen Card Holders
A Green Card makes you a US tax resident wherever you live — including in the UK. What the IRS still expects, how UK residence layers on top, the treaty and expatriation pitfalls, and how to keep or surrender the card without a tax mess.
Learn moreMoving Between the US and UK
The months around a transatlantic move decide years of tax outcomes. What changes when you become resident in the other country, the pre-move steps that matter in each direction, and why timing income, gains and accounts is worth real money.
Learn moreRetirees with US–UK Ties
US retirees in the UK, and Brits with American retirement accounts, draw income that two countries want to tax. How Social Security, 401(k)s, IRAs and UK pensions are treated under the treaty, and why the order you draw them in matters.
Learn moreInvestors & Property Owners
ISAs, funds, shares and property look different from the other side of the Atlantic. How the US treats UK investments (and vice versa), the PFIC and reporting-fund traps, and the filings that follow rental income and property sales in both countries.
Learn moreBusiness Owners & Freelancers
US LLCs, UK limited companies and self-employment all behave badly across the Atlantic. Entity mismatches, self-employment tax, the US–UK totalization agreement and the filings owed in both countries — and how to structure before it hurts.
Learn moreBehind on US Taxes
Years of unfiled US returns feel worse than they usually are. For non-wilful expats the Streamlined Foreign Offshore Procedures offer a defined, penalty-waived catch-up — three years of returns, six years of FBARs — and most people owe little or nothing.
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.