SPECIALIST US TAX SERVICES IN THE UK – TRUSTED IRS COMPLIANCE EXPERTS
Looking for reliable US tax advisors in London? As specialist US UK Tax Advisors, we provide comprehensive US tax services in the UK, including IRS compliance, FATCA and FBAR reporting, and international tax filings. Whether you are a US citizen living in the UK, a Green Card holder, or a non-resident with US income, our experts ensure your returns are accurate, compliant, and optimised under the US–UK tax treaty.
US Tax Services in the UK – Comprehensive IRS Support
As specialist US–UK tax advisors, we provide a full range of professional tax services for Americans in the UK, Green Card holders, dual citizens, and UK residents with US tax obligations. The IRS requires annual reporting on worldwide income, which can be overwhelming when living abroad. Our role is to simplify this process, ensuring accurate filings and full compliance at every stage.
Based in London, our team of expert US tax advisors delivers tailored solutions that go far beyond basic return preparation. From Form 1040 filings to complex matters like FATCA & FBAR reporting, PFICs, foreign corporations, trusts, and cross-border estate planning, we provide specialist support for even the most challenging cases.
Whether you need help with IRS compliance in the UK, advice on the US–UK tax treaty, or assistance with streamlined filing for delinquent returns, we deliver proactive and reliable guidance. Our goal is to help clients avoid penalties, minimise double taxation, and make confident financial decisions while managing obligations across two jurisdictions.
US Tax Services
US Tax Services in the UK – Comprehensive IRS Support
Federal & State Tax Returns
Preparation and filing of Form 1040, 1040NR, and 1040X for US citizens, non-residents, and amended filings, including state tax returns where required.
FATCA & FBAR Reporting
Comprehensive support with Form 8938 (FATCA) and FinCEN Form 114 (FBAR) to ensure all foreign assets and accounts are reported accurately and on time.
Complex International Reporting
Expert preparation of complex IRS filings, including Form 3520 (trusts), Form 5471 (foreign corporations), Form 8621 (PFICs), Form 8858 (foreign entities), and Form 8865 (foreign partnerships).
Streamlined Filing & Delinquent Returns
Assistance with the IRS Streamlined Filing Compliance Procedures (Form 14653), helping delinquent taxpayers catch up on overdue US tax returns and FBARs without heavy penalties.
Expatriation & Renunciation
Guidance through the process of renouncing US citizenship or a Green Card, including preparation of Form 8854 (Expatriation Statement) and advice on exit tax implications.
Estate & Gift Tax
Cross-border estate and gift tax planning, including Form 706 (US Estate Tax Return) and Form 3520 (foreign gifts and trusts), ensuring compliance with both US and UK rules.
Why It's Important to Choose Specialist US & UK Tax Advisors
When it comes to managing US tax services in the UK, working with general accountants is rarely enough. The US and UK tax systems are highly complex, with very different rules, reporting standards, and filing deadlines. Without the right expertise, it's easy to make mistakes that lead to unnecessary tax bills, double taxation, or even penalties from the IRS and HMRC.
By choosing specialist US UK tax advisors in London, you gain peace of mind knowing your tax affairs are handled by professionals who understand both jurisdictions inside out. We coordinate IRS compliance, FATCA and FBAR reporting, double taxation relief, and treaty planning to ensure your filings are correct and your tax position is optimised.
Cross-border taxation is not a one-size-fits-all matter. Each client has unique circumstances, and only dedicated specialists can deliver the tailored advice needed to remain compliant while protecting income, assets, and long-term wealth.
Key Industry Insights:
9.1M
US citizens living abroad required to file US tax returns annually, regardless of residence.
Source: US State Department Report 2023
$10K
Minimum penalty for failing to file FBAR (FinCEN 114) for foreign accounts over $10,000.
Source: IRS Compliance Data 2023
70%
Percentage of US expatriates unaware of all their US filing requirements and potential penalties.
Source: Expatriate Tax Compliance Survey 2023
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.