US & UK Tax Specialists
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US and UK Tax Accountants
Our Services
Specialist US & UK Tax Services
As dedicated US UK tax accountants in London, we provide comprehensive cross-border solutions for individuals, expatriates, and businesses. Our expertise ensures full compliance with both IRS and HMRC requirements while helping clients optimise their tax position across jurisdictions.
Our Expertise at a Glance
Selecting the right adviser is critical when dealing with dual taxation. Our team of experienced US UK tax specialists offers the depth of knowledge and personal service you need to stay compliant and financially secure.
- US & UK Focus
- IRS & HMRC Compliance
- Expatriate Expertise
- Personalised Approach
- Comprehensive Coverage
- Trusted Reputation
We specialise in simplifying complex US-UK tax matters, ensuring full compliance with IRS and HMRC while delivering tailored solutions our clients trust.
INDUSTRY EXPERTISE
From creative industries like film, TV, and entertainment to fashion, e-commerce, fintech, and technology, we partner with ambitious businesses and professionals across the US and UK. As experienced international accountants, we understand the unique financial and tax challenges each sector faces. Our expert insight and hands-on approach help optimise cross-border operations, ensuring compliance, profitability, and sustainable global growth — making us your trusted advisors across industries.
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Tailored Tax Solutions for Global Clients
Every client’ s situation is different, and managing US and UK tax obligations can be complex. As specialist US UK tax accountants in London, we deliver tailored solutions for expatriates, dual citizens, and internationally active businesses.
Our expertise covers IRS and HMRC compliance, ensuring you meet the requirements of both tax authorities. We also assist with double taxation relief, FATCA reporting, and FBAR filing, helping you stay compliant while avoiding unnecessary penalties.
With a strong focus on cross-border tax planning, we combine technical knowledge with a personal approach. Our goal is to keep you compliant and optimise your financial position across both the United States and the United Kingdom.
Google Reviews
Sarah Mitchell
2 weeks ago
As a US citizen living in London, I was overwhelmed by the complexity of filing taxes in both countries. This team made the entire process seamless and ensured I was fully compliant with both IRS and HMRC while maximizing my tax efficiency.
James Patterson
1 month ago
The FATCA and FBAR reporting requirements were a nightmare until I found these specialists. They handled everything professionally and explained each step clearly. Highly recommended for any American living abroad.
Emily Chen
2 months ago
Their knowledge of the US-UK tax treaty saved me thousands in double taxation. I wish I had found them years ago. The team is responsive, knowledgeable, and truly understands cross-border tax complexities.
Michael Roberts
3 months ago
Moving from New York to London for work was stressful enough. Having expert guidance on my tax obligations in both countries gave me peace of mind. Worth every penny for the clarity they provide.
David Thompson
3 months ago
As a UK business owner with US clients, I needed specialized advice on cross-border tax planning. Their strategic approach helped optimize my tax position significantly. Professional and thorough service.
Rachel Green
4 months ago
The self-assessment process was always confusing for me as an American in the UK. They made it straightforward and stress-free. Friendly team who really know their stuff when it comes to dual filing.
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READ ALL REVIEWS ON GOOGLEUS & UK Tax — Frequently Asked Questions
Do I have to file both US and UK tax returns?
If you are a US citizen or Green Card holder living in the UK, you must file a US federal return with the IRS every year (reporting worldwide income) as well as a UK Self Assessment return with HMRC if you are UK tax resident. Double-tax treaty relief and foreign tax credits usually prevent you being taxed twice.
What is the US-UK tax treaty and how does it help me?
The US-UK double taxation treaty allocates taxing rights between the two countries and lets you claim relief so the same income is not taxed twice. It covers employment income, pensions, dividends and capital gains, and is central to cross-border planning for dual filers.
What are FBAR and FATCA reporting requirements?
US persons with foreign financial accounts over $10,000 in aggregate must file an FBAR (FinCEN 114). FATCA (Form 8938) requires reporting specified foreign assets above threshold amounts. Both carry significant penalties for non-compliance, so accurate reporting is essential.
I'm behind on my US taxes while living abroad — what can I do?
The IRS Streamlined Foreign Offshore Procedures let eligible non-willful taxpayers catch up by filing the last 3 years of returns and 6 years of FBARs, usually without penalties. We assess eligibility and manage the full submission for you.
Do you help both individuals and businesses?
Yes. We advise individuals, families and high-net-worth clients as well as UK companies with US operations and US businesses expanding into the UK — covering corporate tax, GILTI, Form 5471, structuring and cross-border planning.
Where are you based and who do you serve?
We are US-UK cross-border tax specialists with offices in London, New York and San Francisco, serving clients across the United Kingdom and the United States and internationally mobile individuals and businesses.
Get in Touch
Managing cross-border taxes doesn't have to be complicated. Whether you're a US citizen living in the UK, a UK resident with US tax obligations, or a business operating internationally, our team of specialist US UK tax accountants in London is here to help.
US–UK Cross-Border Tax: Key Facts
$10,000
Aggregate in foreign accounts at any point in the year triggers a mandatory FBAR (FinCEN Form 114) for US persons.
Source: IRS — FBARWorldwide
US citizens and Green Card holders must file a US return on worldwide income every year, regardless of where they live.
Source: IRS — Citizens Abroad$120,000+
The Foreign Earned Income Exclusion lets qualifying Americans abroad exclude over $120,000 of earned income (indexed annually).
Source: IRS — FEIE31 January
UK Self Assessment online returns and any tax owed are due by 31 January following the 5 April tax year end.
Source: GOV.UK — Self AssessmentWritten & reviewed by the US-UK Tax Advisors cross-border tax team — chartered specialists in US and UK taxation, IRS and HMRC compliance, FATCA/FBAR reporting and double-taxation treaty planning.
Last reviewed: July 2026. This page is for general information and is not personal tax advice.