Personal US & UK Tax Advice from Expert Professionals in Tax Practice.

Serving a growing list of internationally mobile clients globally.

Specialist Tax Professionals providing US & UK Tax Services to Individuals.

Xerxes LLP can help with every step of preparing and filing your UK & US taxes, including more complex filing requirements such as disclosure and streamlined foreign offshore procedures, tax planning and expatriation.

Travel, work and experience an international lifestyle with the assurance your taxes are taken care of by our trusted team of experienced tax professionals – offering services to expats in the United Kingdom and the United States.

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We offer a private client relationship, helping you to overcome even the most complex situations, so please get in touch and one of our trusted partners will respond to your enquiry within 48 hours.


At Xerxes we pride ourselves on providing bespoke services to our clients and can advise on all aspects of the issues around an internationally mobile lifestyle.

US Federal & State Income Tax Returns

US Federal & State Income Tax Returns

We complete US Federal and State income tax returns as required by the IRS and State authorities by a team of experienced IRS Enrolled Agents, who understand all the complexities of expat tax preparation…

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UK Self Assessment Tax Returns

UK Self Assessment Tax Returns

In addition to our comprehensive US individual tax compliance services, we also complete UK Self Assessment Tax Returns, with qualified ICAEW accountants as part of our growing team…

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Consulting and Planning

Consulting & Planning

Require a bit more advice, perhaps in preparing for future moves, family or business changes? We offer a full range of consulting and planning services…

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Even more

Even more…?

Be assured by expert assessment and confidentiality from our team of trusted partners. Discuss your circumstances by requesting a callback or contact us today…

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Client Tax Updates

Contact us

Our market beating fee starts at £299 + VAT for UK Self Assessment Tax Return. Please call, e-mail us or use our contact form if you would like to discuss your requirements.

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