US UK Tax Experts prepares and files US and UK tax returns together, for Americans in the UK, UK residents with US income, and businesses operating in both countries.
Close the gap between IRS and HMRC rules with one team that speaks both. Compliance handled, reliefs claimed, no surprises.
“As a US citizen living in London, I was overwhelmed by filing in both countries. This team made the entire process seamless and kept me fully compliant with both the IRS and HMRC.”
We believe clarity equals confidence. Whether you are an American in London, a Brit with US income, or a company trading in both markets, we are here to make two tax systems feel like one. Meet the team that has spent years untangling IRS and HMRC rules for expats, families and businesses.
Inside the firmJoin the individuals, families and businesses who trust one team with both the IRS and HMRC. Their stories show what happens when two tax systems are handled together instead of in isolation:
“Their knowledge of the US-UK tax treaty saved me thousands in double taxation.”
Emily, Dual Citizen Entrepreneur
“The FATCA and FBAR reporting requirements were a nightmare until I found these specialists.”
James, Investment Manager
“Having experts handle my tax obligations in both countries gave me peace of mind.”
Michael, Finance Director
“Their thorough approach got my business returns right in both countries.”
David, Business Owner
“They made Self Assessment straightforward and stress-free.”
Rachel, Marketing Consultant
“We trust them completely with our cross-border tax affairs.”
Thomas, Expatriate Family
“This team made the entire process seamless and kept me fully compliant with both the IRS and HMRC.”
Sarah, Tech Executive
With two tax calendars, one team and a date for each filing, you never have to guess what is due next. These are the dates that matter most for people and businesses on both sides.
If you filed for an extension on your 2025 US return, the final filing date is 15 October. Late filing penalties start the next day.
Online returns for the 2025/26 tax year and the balancing payment are due by midnight. Payments on account are also due.
Standard filing and payment date for the 2026 tax year. Americans abroad get an automatic extension to 15 June, but interest runs from April.
Report foreign accounts that together exceeded $10,000 at any point in the year. Automatic extension to 15 October.
Payment is due nine months and one day after the end of your accounting period, with the return due three months later.
Your US and UK returns prepared by the same people, so the foreign tax credits, treaty claims and FBAR filed in one country line up with what was filed in the other. Accurate, on time, and without the same income taxed twice.
Inside the firmWhat is filed on one side changes what is owed on the other. Pick the area that matches your situation and see how we handle it end to end.
When a US citizen living in Britain has to file a UK Self Assessment return, what goes on the foreign pages, how US tax is credited, and the dates that matter.
Read articleThe ones that come up in almost every first call. If yours is not here, ask it below.
If you are a US citizen or green card holder, yes. The US taxes on citizenship, not residence, so the obligation follows you regardless of where you live or where the income arises. Paying UK tax does not remove the filing requirement, though it usually reduces or removes what is actually owed.
Usually not, if the position is claimed correctly. The US UK treaty, the foreign tax credit and the foreign earned income exclusion exist to stop the same income being taxed in both places. Which of them applies, and which leaves you better off, depends on the type of income and where you are resident. They are not interchangeable and the wrong choice can cost you.
It is a report of foreign financial accounts, filed with FinCEN rather than the IRS. It is triggered if your non-US accounts together exceeded $10,000 at any point in the year, even for a single day, and even if no account is anywhere near that on its own. It is separate from your tax return, and the penalties for missing it are severe enough that it is worth checking rather than assuming.
This is common and there is a route back. The IRS streamlined procedures exist for people whose failure to file was not wilful, and they generally resolve the back years without penalties. Coming forward yourself is treated very differently from being found, so the position is usually better than people fear when they call.
One team is the point. Most cross-border problems are not caused by a difficult rule but by a decision taken correctly in one country by someone who could not see the consequence in the other. We work both sets of filings from the same file, so a relief claimed with HMRC is checked against what it does at the IRS before it is claimed.
A call to understand where you are: which countries you have income or assets in, what has been filed and what has not, and what is coming up. You will leave it knowing what needs to be filed, where, and by when. We will tell you if your position is simpler than you think, and we will tell you if it is not.
A short description is enough to start. We will tell you what needs filing, where, and by when.
Now is your time.
Book a call and find out exactly what needs filing with the IRS and HMRC.
