The cross-border rules, explained in plain English.
Written by the specialists who file these positions every day. Each guide covers what the rule actually says, where it catches people, and what to do about it — before it becomes a penalty.
Your first year abroad
What actually changes in the first year after a move: residence, split years, first filings and the elections that echo for years.
FBAR & FATCA thresholds
The $10,000 FBAR trigger and the Form 8938 thresholds explained: what counts, how to aggregate, and what to do about missed years.
Start with these in-depth articles
The questions most people arrive with, each answered at length with the official sources behind it: filing from Britain, catching up, UK funds and ISAs, pensions, and the choice between the exclusion and the foreign tax credit.
- Filing a US return from the UK
Filing a US return from the UK: which reliefs apply, the disclosure forms with no UK equivalent, the deadlines, and the order the two returns belong in.
- Streamlined filing explained
Streamlined filing explained: what the package contains, why the Foreign route waives penalties where the Domestic route charges 5%, and who qualifies.
- ISAs and the PFIC problem
Your ISA is tax-free in the UK and fully taxable to the IRS. What makes the funds inside it PFICs, what that costs, and how to rebuild a portfolio that works.
- UK pensions under US tax rules
UK pensions under US rules: what the treaty protects, why contributions differ from growth, the reporting that applies anyway, and the lump sum trap.
- Foreign tax credit or FEIE: which wins?
The foreign earned income exclusion or the foreign tax credit? For Americans in the UK the choice compounds for years. Compare both, then get yours checked.
- Avoid double taxation: the US-UK toolkit
Four mechanisms let you avoid double taxation between the US and UK: credits, the exclusion, treaty positions and ordering. See how each works.
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