What Is the Process for Filing Both My U.S. and UK Expat Tax Returns? Will I Have to Upload Everything Twice?

No, you will not need to upload your documents twice. Greenback makes it simple to file your U.S. and UK tax returns through a single, secure portal, with a team working behind the scenes to save you time, stress, and money.

What Is HMRC and Why Does It Matter?

The UK equivalent of the IRS is His Majesty’s Revenue and Customs (HMRC). HMRC is responsible for collecting taxes, enforcing regulations such as the national minimum wage, and distributing certain state benefits.

If you are an American living in the UK, you may be required to file a UK Self-Assessment Tax Return with HMRC in addition to your U.S. return.

How Greenback Simplifies the Process

One Upload, Shared Access

Upload your documents once through your Greenback Tax Companion Account. Your U.S. and UK accountants, both working within the Greenback team, coordinate directly to ensure seamless collaboration and maximum efficiency.

In-House UK Expertise

Greenback has partnered with a UK Chartered Accountant with deep expertise in helping American expats file UK taxes. This means:

• Time savings: No need to send files or explain your situation twice
• Tax savings: Our collaborative approach ensures no opportunity is missed
• Expert advice: Access personalized support and recommendations

You can start your UK onboarding while your U.S. return is still in progress, but your UK tax return can only be finalized once the U.S. return is complete, as the two often rely on shared figures.

Pricing for UK Tax Services

All prices include VAT. Learn more about our UK tax services

No matter how late, messy, or complex your return may be, we can help. If you are ready to get started, click the Get Started button above. Have questions about the process or next steps? Contact us, and one of our Customer Champions will be happy to help.