US Tax Compliance and Expat Filing Help | UK/US Double Tax Treaty Explained

US citizens and Green Card holders face the ongoing challenge that their worldwide income and gains remain subject to US taxation, no matter where they live. This means that even when based in the UK, Americans continue to have annual US tax compliance and filing requirements.

In recent years, these obligations have become increasingly intricate, and specialist advice is often needed to avoid costly mistakes. Two of the most common problem areas are:

The FBAR (Foreign Bank Account Reporting) regime for offshore account disclosure.
The taxation of Passive Foreign Investment Companies (PFICs) such as non‑US investment funds.

Failing to address these can result in substantial penalties, which is why expats seek expert US expat tax help to stay compliant.

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Why Ongoing US Expat Tax Help is Essential

Our team works closely with US‑based CPAs to provide up‑to‑date advice and ensure that Americans living in the UK have complete peace of mind. We monitor changes to legislation so clients can anticipate adjustments to the tax code rather than react to them.

UK/US Double Tax Treaty Explained

The interaction between UK and US tax rules is often complex, but the UK/US double tax treaty—also known as the US/UK tax treaty—plays a critical role in preventing the same income from being taxed twice.

Knowing the US/UK tax treaty explained in practical terms can help taxpayers understand how to:

Correctly allocate taxing rights between the UK and USA.
Manage timing differences across tax years.
Claim allowable foreign tax credits.
Make use of planning opportunities that lower cross‑border liabilities.

Where income arises in a third country outside both the US and UK, treaty application becomes even more nuanced, and careful planning is needed to determine taxing rights.

Our US Tax Compliance Services

We help individuals manage the interaction of UK and US tax efficiently, providing hands‑on support in the following areas:

Identifying all required US tax compliance and filing obligations.
Assisting with the US Streamlined Filing Compliance Procedures for those behind on returns.
Preparing US Federal and State tax returns.
Managing the timing of UK and US tax payments and credit planning.
Advising on cross‑border pension planning options.
Providing guidance on estate tax planning in the context of both UK inheritance tax and the US gift and estate tax regimes.

Streamlined Filing for Late Filers

For delinquent taxpayers who have fallen behind, the IRS Streamlined Filing Compliance Procedures offer a way to become compliant without unnecessary penalties. This route is used by many Americans in the UK who have unintentionally missed filings and require professional assistance to catch up.

Why Choose Us for US Expat Tax Advice

Navigating US expat tax advice and double tax agreements between the UK and USA requires careful planning and the right expertise. By working with our advisers, you can feel confident that all compliance requirements are met while also benefiting from strategic opportunities under the tax treaty.

To learn about our full range of US Private Client Tax Services, click here.

📞 Please contact us using the form at the bottom of the page to speak with one of our advisers about your US tax compliance needs.