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About Taxule

Two tax systems. One team. The same income never taxed twice.

Taxule connects HMRC and the IRS into a single, coordinated filing — applying the US–UK treaty once, so the same profit is never taxed twice. For individuals and businesses living and working across the Atlantic.

ACCA-regulated · CIOT members · US CPA licensed · Fixed fees, agreed before we start

Your position, mapped
HMRCSelf-assessment · Corp tax · VAT · MTD
IRS & States1040 · FBAR · FATCA · Sales tax
The US–UK treatyApplied once
OutcomeTaxed once, not twice
Both regimes reconciled before either return is filed
Cross-border clients shouldn't fall through the gap between two local firms.

Your UK accountant can't file your US return. Your US CPA doesn't know UK self-assessment. Between them sits a gap — treaty positions, foreign tax credits, timing — and that gap is where clients get double-taxed, double-billed, or missed entirely.

We built the firm we wished existed: dual-jurisdiction by design, specialist by focus, and honest on price. One team that knows how a UK pension lands on a US return, how an LLC is taxed in Britain, and how the treaty ties it all together.

What we handle

Every cross-border service, one firm

US returns & FBAR / FATCAUS federal returns reporting worldwide income, plus the FBAR and FATCA reporting that catch people out — kept consistent with your UK position.
UK self-assessment & MTDUK self-assessment including residence and FIG pages, lined up with your US return, and full readiness for Making Tax Digital.
Dual filing & treaty reliefThe heart of what we do: reconcile HMRC and IRS treatment and apply the treaty once, so the same income is taxed once, not twice.
Business & corporation taxUK and US corporation tax on one coordinated calendar, VAT and US sales-tax nexus, payroll and structuring across both countries.
Pre-arrival & FIG planningPlanning done before you move, while the options are open — mapping the four-year FIG window and coordinating both sides.
Expatriation & catch-upExit-tax planning for those renouncing, and Streamlined catch-up for non-wilful filers — often with no penalties for those who qualify.
Two systems in. One coordinated filing out.

HMRC and the IRS both feed into one place — the treaty is applied a single time, so the same income is never taxed twice.

HMRC holds your UK obligations. The IRS and states hold your US ones. Taxule sits in the middle, applies the treaty once, and hands you back a position where the same income is taxed once — not twice.

Our story

One firm, both sides of the Atlantic

Cross-border clients have always fallen through the cracks — too small for the big firms, too complex for a local accountant, too human for a software form.

We built the firm we wished existed: dual-jurisdiction by design, specialist by focus, and honest on price. One team that knows how a UK pension lands on a US return, how an LLC is taxed in Britain, and how the treaty ties it all together.

Regulated & registered

Real oversight on each side

One firm, both sign-offsThe same team that knows your UK position signs off your US return, under real regulatory oversight on each side of the Atlantic.
Cross-border is all we doSo we spot the trip-hazards — PFICs, the treaty, dual residency — that a domestic firm meets only once a year, if ever.
Humans own the judgementTechnology handles the predictable work; a qualified human owns every judgement and every sign-off.
Reviews & case studies

What clients say when both filings finally agree

“For the first time my US and UK filings actually talk to each other. One team, one calendar, nothing slips through the gap.”

— Anita Dongol Suwal · Talent & Culture Manager · MTTM

Contact & book a call

Ready to put one firm on both sides?

Tell us your situation — no obligation — and we'll tell you exactly what you need across the US and UK, with a fixed quote before any work begins.

RegulatedACCA / CIOT · UK LicensedUS CPA practice Clients4,000+ Reach60+ countries FeesFixed, up front