American Dual Citizenship: Navigating US Tax Requirements for US Expats in the UK with Xerxes Associates LLP

The concept of "American dual citizenship" is of paramount importance for US expatriates living in the United Kingdom. Many individuals hold dual citizenship, with American citizenship being one of them. Understanding the implications of American dual citizenship is crucial, particularly when it comes to US tax requirements. Xerxes Associates LLP, a distinguished US and UK tax advisory firm, provides expert insights on how American dual citizenship impacts US expats in the UK and how we can assist in ensuring compliance with US tax regulations.

Exploring American Dual Citizenship:

Dual Citizenship Defined:

American dual citizenship, also known as dual nationality, refers to an individual’s legal status as a citizen of both the United States and another country. It can occur due to various reasons, such as birthplace, parentage, or naturalisation.

US Tax Obligations:

US citizens, regardless of their dual citizenship status, are subject to US tax regulations. This includes the requirement to file annual US tax returns and report worldwide income to the Internal Revenue Service (IRS).

Implications for US Expats:

US expatriates with American dual citizenship must navigate both US and UK tax requirements, including the potential risk of double taxation—paying taxes to both the US and the UK on the same income.

How Xerxes Associates LLP Can Assist:

Xerxes Associates LLP is well-equipped to provide expert guidance to US expats with American dual citizenship:

Dual Tax Obligations:

We help US expats understand their dual tax obligations and develop tailored tax strategies to optimise their tax position while ensuring full compliance with US tax regulations.

Double Taxation Mitigation:

Xerxes Associates specialises in mitigating double taxation issues by utilising the US-UK tax treaty and helping clients claim foreign tax credits.

Tax Planning:

We provide personalised tax planning services to maximise deductions, credits, and other tax benefits while considering the implications of American dual citizenship.

Reporting Compliance:

Our team ensures that US expats meet all reporting requirements, including FBAR, FATCA, and any other obligations, to maintain good standing with the IRS.


American dual citizenship poses unique challenges for US expats in the UK, especially when it comes to US tax requirements. Xerxes Associates LLP is your trusted partner in navigating this complex landscape, ensuring that you fulfil your tax obligations while optimising your financial position. Trust our expertise to help you manage the implications of American dual citizenship and maintain compliance with US tax regulations while living in the United Kingdom.

Contact us via or fill out our contact form to discuss your expat tax situation with us.

Read more here: Xerxes US Expats Living & Working in the UK Blog.