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USUKTax Accountants

Who we help

Americans in the UK

The US taxes you on worldwide income wherever you live. Living in the UK does not end the filing obligation — it doubles it.

Aerial view of Oxford's colleges and spires

Two returns a year, and only one of them is optional to get wrong.

US citizens file a federal return on worldwide income regardless of where they live. Move to London and you pick up UK Self Assessment as well, on overlapping but differently-defined income.

Handled together, foreign tax credits and treaty positions usually mean you are not taxed twice. Handled separately, the two returns contradict each other and someone eventually asks why.

What we handle

01

Both returns, one position

Form 1040 and Self Assessment prepared from the same figures, with credits claimed in the right country and in the right order.

02

Exclusion or credit

The foreign earned income exclusion is not always better than the foreign tax credit. At UK rates it often is not, and the choice is hard to reverse.

03

Accounts and reporting

FBAR once your foreign accounts pass $10,000 in aggregate at any point, and Form 8938 above the FATCA thresholds.

04

ISAs and UK funds

The UK treats an ISA as tax-free. The US does not, and most UK funds inside one are PFICs with their own reporting regime.

Why us

Advisers who work both sides, not one with a view on the other

A UK accountant who defers to your US preparer, and a US preparer who has never seen a P60, will between them miss the interaction that actually costs you money.

We prepare both returns in-house, so the credit claimed in one is the credit expected by the other.

Frequently asked

I have not filed US returns in years. How bad is it?

Usually more fixable than people expect. The Streamlined Filing Compliance Procedures exist for taxpayers whose failure to file was not wilful, and generally cover three years of returns and six of FBARs without penalty. We will tell you honestly whether you qualify.

Does the treaty mean I do not pay twice?

Broadly, relief comes through foreign tax credits, with the treaty settling residence and specific categories such as pensions. It usually prevents double taxation, but it does not remove either filing obligation.

Do I need to report my UK pension?

Almost certainly, and how it is treated depends on the scheme. Employer schemes and SIPPs are not identical in US eyes, and getting the position consistent year to year matters more than the position you pick.

Which return do I file first?

The UK year ends 5 April and the US year ends 31 December, so they never line up. In practice we prepare them together and decide the credit ordering once, because each return needs to know what the other claimed.

What are the filing deadlines?

The US return is due 15 April, automatically extended to 15 June if you live abroad, and to 15 October on request. UK Self Assessment is due 31 January online. Tax owed is still due on the original date even where filing is extended.

Do I have to report my UK bank accounts?

If your foreign accounts together exceed $10,000 at any point in the year — even for one day, even across accounts you barely use — an FBAR is due. It is a reporting form, not a tax charge.

Is my UK employer's pension contribution taxable to the US?

Potentially, depending on the scheme and the treaty position taken. It is one of the areas where a consistent position year to year matters more than the specific position chosen.

What if I am married to a non-American?

You can file separately, or elect to treat your spouse as a US taxpayer. The election can reduce the rate but pulls their worldwide income into the US system, so it is rarely the obvious choice it looks like.

Can you take over from my current preparer?

Yes. We ask for the last two or three years of returns so the positions carry forward correctly, particularly on pensions, funds and credit carryovers.

The US taxes you on worldwide income wherever you live. Living in the UK does not end the filing obligation — it doubles it.

Talk it through

Tell us what you are trying to solve and we will put the right specialist on the call.

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