
About Us
A specialist cross-border firm. US CPAs and UK tax advisers work on one team and coordinate both sides of your position.
Two Tax Systems.
One Plan.
Specialist US & UK Tax Advisory for Cross-Border Lives and Businesses
US/UK Cross Border Tax was established for people and businesses caught between two tax systems. We put US CPAs and UK tax advisers on one team, so the American and British sides of your position are prepared together, not reconciled after the fact.
From offices in London, Manchester, New York, and San Francisco, we advise Americans in the UK, Brits in the US, dual citizens, and businesses expanding across the Atlantic. Filing two returns is only part of the job. We design a single plan that holds up before both the IRS and HMRC.
We want to be the first call for individuals, families, and companies whose lives and operations span the United States and the United Kingdom.
US Tax, Handled
Federal and state returns, FBAR and FATCA reporting, PFIC analysis, and streamlined catch-up filings, prepared by US CPAs who work with UK facts every day.
UK Tax, Coordinated
Self Assessment, residence and domicile planning, and treaty positions on pensions and investments, aligned with the US side from the start.
The Cross-Border Standard.

Structural Integrity.
Every strategy we design has to stand up to close regulatory scrutiny. We build structures that are legal, ethical, and defensible on both sides of the border.

Transatlantic Agility.
Big-firm rigor, boutique response times. Because we specialize in US-UK work, we can move quickly to take opportunities in either jurisdiction and to reduce cross-border friction.

Analytical Precision.
We work through two complicated tax codes to reach the lowest liability the rules allow, and our specialists give you clear answers where your capital is at stake.

Ownership Mentality.
We operate as an extension of your executive team, and we take full responsibility for whether your tax strategy works, this year and over the long term.
The Advisory Partnership.
US CPAs and UK tax advisers sit on one team and work side by side, so every position is prepared with both the IRS and HMRC in view.
Schedule a Consultation
Philip Smith
US TAX PARTNER

Clara Taylor
SENIOR TAX ADVISOR

Thomas Panton
US TAX SPECIALIST

John Watson
SENIOR ACCOUNTANT

Henry Simons
MANAGING DIRECTOR, INTERNATIONAL TAX

Emma Sinclaire
DIRECTOR, CROSS-BORDER TAX STRUCTURING

David Foster
PARTNER, TAX CONTROVERSY & AUDIT DEFENSE

Hannah Smith
SENIOR TAX CONSULTANT

Sal Tarar
PARTNER, M&A & TRANSACTION TAX

Molly W.
ASSOCIATE, PRIVATE CLIENT SERVICES

Philip Smith
US TAX PARTNER

Clara Taylor
SENIOR TAX ADVISOR

Thomas Panton
US TAX SPECIALIST

John Watson
SENIOR ACCOUNTANT

Henry Simons
MANAGING DIRECTOR, INTERNATIONAL TAX

Emma Sinclaire
DIRECTOR, CROSS-BORDER TAX STRUCTURING

David Foster
PARTNER, TAX CONTROVERSY & AUDIT DEFENSE

Hannah Smith
SENIOR TAX CONSULTANT

Sal Tarar
PARTNER, M&A & TRANSACTION TAX

Molly W.
ASSOCIATE, PRIVATE CLIENT SERVICES
Four offices, two countries, one team
London
Headquarters
4 Crown Place London EC2A 4BT United Kingdom
Monday - Friday: 9:00 AM - 6:00 PM GMT
Manchester
Northern UK Office
CORE Brown St, Manchester M2 1DH United Kingdom
Monday - Friday: 9:00 AM - 6:00 PM GMT
New York
US East Coast Office
33 Irving Pl New York, NY 10003 United States
Monday - Friday: 9:00 AM - 6:00 PM EST
San Francisco
US West Coast Office
600 California St San Francisco, CA 94108 United States
Monday - Friday: 9:00 AM - 6:00 PM PST

One Firm.
Both Jurisdictions.
We are specialist advisers for the US/UK tax corridor. US CPAs and UK tax advisers work the same file, so relief goes to the right country, elections happen at the right time, and nothing falls into the gap between two separate preparers. Fees are fixed, quoted up front, and cover both returns.
Get a Fee QuoteFrequently Asked Questions.
Technical guidance.
Straight answers to the questions every cross-border taxpayer asks, from first filing to final move home.
Two Tax Systems, One Team
Email Us
hello@usukcrossbordertax.comLondon Headquarters
4 Crown Place
London EC2A 4BT
United Kingdom
Manchester
CORE
Brown St, Manchester M2 1DH
United Kingdom
San Francisco
600 California St
San Francisco, CA 94108
United States
New York
33 Irving Pl
New York, NY 10003
United States