verified We support US citizens living in the UK

Taxes for US expats living in London

Whether you are a US citizen, a Green Card holder, or you simply own assets based in the USA, you are required to file a US tax return every year. Our team specialises in preparing and submitting those returns for expatriates and UK investors.

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verified US tax specialists · sync_alt US & UK filed together · account_balance FBAR & FATCA included · star Five-star rated since 2016
How we can help

We can help you with

From your annual return to long-term planning, here is where our US tax team takes the weight off your shoulders.

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US tax returns

The US is one of the only countries that taxes its citizens on their worldwide income, wherever they live. We prepare your federal, state and city returns and claim the credits and exclusions that keep what you owe as low as possible.

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Foreign bank account returns

If your foreign accounts combined top $10,000 at any point in the year, an FBAR (FinCEN Form 114) is due. It covers bank, pension, trust and business accounts you hold or can sign on, and missing it can cost $10,000 or more per account. We prepare and file it for you.

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Foreign corporation returns

Own 10% or more of a non-US company at any point in the year? You will likely need to file Form 5471, reporting your shareholding and the company's accounts. Filed late, incomplete or wrong, it can cost up to $10,000 per form. We prepare it accurately.

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IRS Streamlined Procedure

Behind on your filing? If it was not deliberate, this is the penalty-free route back: usually three years of returns, six years of FBARs and a non-willful certification (Form 14653). We manage it all, and it is normally ready in around 4 to 12 weeks.

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US tax planning

For a US citizen in the UK, a UK investor in the US, or a business trading across both, planning ahead protects reliefs and improves your overall position. We advise on treaties, ITIN applications, residency and domicile, trusts and inheritance tax.

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Deadlines

Living abroad gives you longer. Any tax owed is due 15 April, while your return is due 15 June on the automatic expat extension, stretching to 15 October on request. Your FBAR is due 15 October. We track every date so nothing is missed.

How it works

Sorted in four simple steps

No software to wrestle with and no jargon to decode. A real US tax specialist does the work for you, from first hello to filed return.

1

Get your free quote

A quick chat about your situation, then a clear fixed-fee quote. No obligation and no surprises.

2

Share your details

Send us your documents securely. We tell you exactly what we need, and nothing more.

3

We prepare everything

Your adviser prepares your US return and, if you need it, your UK return, claiming every credit you are due.

4

We file, you relax

You review and approve, we e-file with the IRS, and you are compliant for another year.

What we handle

The US tax work we take off your hands

A few of the questions we are asked most. Whatever your situation, we will tell you exactly what applies to you.

Is a US tax return necessary?

If you are a US citizen or Green Card holder, the answer is almost always yes. We will check your situation against the IRS thresholds and tell you for certain.

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Foreign bank account returns

With a UK bank account, or signing authority over one, you may need to file an FBAR (FinCEN Form 114). We prepare and submit it for you.

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We also prepare UK tax returns

Need returns in both countries? We prepare your US and UK filings together and handle the sometimes tricky way the two systems interact.

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Why Phinch over a general accountant

US tax is a specialism, not a sideline

Most UK accountants will not touch a US return, and most US preparers do not understand the UK system. Phinch sits in the rare middle ground, with US Enrolled Agents and UK Chartered Tax Advisers working side by side. And unlike firms that send compliance work offshore, we never outsource. Every return is prepared in-house by our own team. Established 2016, looking after clients across London and the rest of the UK.

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US tax specialists

Federally licensed to prepare returns and act before the IRS

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Tax systems, one team

US and UK returns handled together, never bounced between firms

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Fixed-fee pricing

Agreed upfront. No hourly clock, no surprise bills

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Five-star reviews

From individuals and businesses across the UK

What our clients say

Real words from real Phinch clients

★★★★★

Just incredible. So responsive, detailed but without losing you with technical jargon, and really answered my questions. Will recommend time and time again. Simply the best.

Rahul Moodgal
Phinch client
★★★★★

Phinch is a fantastic company. Especially David Parmenter and Sebastian Hassan-Ally, who are responsive, proactive and very good at what they do. I am very pleased I engaged this team.

Mike Herford
Phinch client
★★★★★

Highly professional and approachable, always at the end of the phone if we have had any questions. Would not hesitate to recommend them to anyone.

The Pear Orchard Grill
Phinch client
Get your free, fixed-fee quote

Tell us about your situation. We will tell you exactly where you stand.

Pop your details in the form and a US tax specialist will be in touch within one working day, with a clear view of what you need to file and a fixed-fee quote. No obligation and no jargon.

  • check A fixed-fee quote, with no hidden extras
  • check A clear list of what you actually need to file
  • check A real US tax specialist, not a chatbot
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Prefer to talk now? 01934 404000

Get a free US tax quote

It takes less than 60 seconds.

Common questions

US tax for Londoners: FAQs

Yes, but filing is not the same as paying twice. The US taxes on citizenship rather than residence, so US citizens and Green Card holders must file a federal return every year, wherever they live. The reassuring part is that thanks to the Foreign Earned Income Exclusion (up to $130,000 for the 2025 tax year), foreign tax credits and the US/UK treaty, most people who file correctly owe the IRS little or nothing.
Very rarely, when it is done properly. The US/UK tax treaty, the Foreign Earned Income Exclusion and foreign tax credits (Form 1116) are all designed to stop the same income being taxed twice. The trick is claiming everything in the right order across both returns. Because we prepare the US and UK sides together, nothing falls through the gap.
An FBAR (FinCEN Form 114) is a report of your non-US financial accounts. If the combined value of your UK current accounts, savings, and certain pensions and investments goes over $10,000 at any point in the year, you must file one. It is separate from your tax return, and that $10,000 line is easy to cross living in London. We include it as standard, so you do not have to think about it.
Almost certainly not, if we act sensibly. The IRS Streamlined Filing Compliance Procedures exist for exactly this situation. If your failure to file was not wilful, and for most expats it simply was not, you can usually become fully compliant by filing the last three years of returns and six years of FBARs, with no penalties. We handle the whole catch-up quietly and take the worry out of it.
It can, and this is where a specialist really earns their fee. ISAs are not tax-free in American eyes, many UK funds are treated as PFICs (which carry heavy US reporting), and pensions need careful treaty treatment. A general accountant rarely spots these. We deal with them every day and will tell you plainly where you stand before any work begins.
We work on a transparent fixed-fee basis, agreed before we start any work. The price simply reflects how complex your affairs are. A straightforward expat return with an FBAR costs far less than one with rental property, investments or several years of back-filing. Request a free quote and we will give you a clear, concrete number with no obligation.
Not at all. We are based in Weston-super-Mare but look after clients right across London and the UK, working entirely by phone, email, video call and secure document upload. You can get your whole return prepared and filed without leaving your sofa.
Ready when you are

Sort your US taxes for good.

One free quote. We will tell you exactly what you need to file, whether the Streamlined Procedure applies, and what it will cost. Just a clear plan.