Form 8833
IRS, Treaty-Based Return Position Disclosure
The disclosure required when a US return relies on the US-UK treaty to override or modify the ordinary US tax rules.
What is Form 8833?
Form 8833 tells the IRS that a return takes a position based on a tax treaty. It does not grant the treaty benefit itself; it discloses the reliance. Americans in the UK and British nationals with US ties use it most for residence tie-breaker claims and for certain pension and resourcing positions.
Disclosing when the treaty changes the answer
Disclosure is required when a treaty position overrides or modifies a provision of the Internal Revenue Code and the result is a reduction in tax.
Regulations waive disclosure for many routine positions, such as reduced withholding rates on dividends or interest paid to a treaty resident. Each position generally needs its own form, citing the treaty article, the Code provision it affects, and the facts relied on. The form is attached to the return.
The most consequential use is the tie-breaker in Article 4. A person who is resident in both countries under their domestic rules can claim to be resident only in the UK for treaty purposes. The claim is made on Form 1040-NR with Form 8833. For a long-term green card holder, claiming treaty nonresidence can be treated as expatriation, with all its consequences. That needs thinking through before the form is signed.
Other disclosed positions often involve pensions and relief from double tax. Some filers rely on Article 18 to defer US tax on growth inside a UK pension, or on the treaty to resource US-source income so that UK tax can be credited against it. A US citizen's use of the treaty is limited by the saving clause in Article 1(4), with only the exceptions listed in Article 1(5). The penalty for failing to disclose is a fixed amount per failure.
At a glance
- Form 1040 or Form 1040-NR
- Attached to
- A treaty position overrides or modifies US law
- Required when
- A fixed penalty for each undisclosed position
- Penalty exposure
- Treaty position taken
- One form per
Figures are for the tax year stated in the official instructions linked below.
How we handle it
- Treaty Relief
Claims under the US/UK income tax treaty, with Form 8833 disclosure, residence tie-breaker analysis and reduced withholding on US income.
- US/UK Pensions
How workplace pensions, SIPPs, 401(k)s and IRAs are taxed and reported when the saver and the scheme are in different countries.
- Expatriation
Tax planning and Form 8854 filing for people giving up US citizenship or a long-held green card, including covered expatriate testing.
- Cross-Border Tax
US and UK returns prepared together from one set of workpapers, so credits, tax years and exchange rates line up across both.
Where people go wrong
The Form 8833 errors we correct most often.
Who files it
- Dual residents claiming UK residence under the Article 4 tie-breaker
- US citizens relying on treaty pension articles to modify US treatment
- Filers resourcing income under the treaty to use UK tax as a credit
- Anyone taking a treaty position that is not covered by a disclosure waiver
01
Claiming UK tie-breaker residence as a green card holder without weighing expatriation
02
Relying on the treaty as a US citizen without checking the saving clause
03
Filing one Form 8833 to cover several unrelated treaty positions
04
Disclosing a position that the regulations already waive, adding needless complexity
Why US UK Tax Returns
Every form is prepared against the official instructions, and every position on it is one we can point to in the Code, the treaty or HMRC's guidance.
One File
US and UK returns prepared in the same engagement and reconciled line by line.
Primary Sources
Every position traced to the Code, the treaty, IRS instructions or HMRC guidance.
Scope First
Returns, forms, years and fee agreed in writing before work begins.
The Same People
The team that files this year carries the elections and credits into the next.
Questions we are asked
Do I need Form 8833 just because I live in the UK?
No. Living abroad does not by itself require the form. It is needed only when the return takes a treaty-based position that changes the result under US law and no waiver applies. Many Americans in the UK claim foreign tax credits under domestic law alone and never need it. Whether a given position requires disclosure depends on the treaty article and the Code section involved.
I have a green card but live in London. Can I use the tie-breaker?
The tie-breaker can apply to a green card holder who is also UK resident. The difficulty is that a long-term resident who claims treaty nonresidence may be treated as having expatriated, bringing Form 8854 and possibly the exit tax. The effect depends on how long the card has been held and the person's net worth and filing history. This should be modelled before the claim is made.
Does Form 8833 protect my UK pension from US tax?
The form discloses the position; the protection comes from the treaty itself. Growth inside a qualifying UK pension is generally protected for a US citizen under Article 18. Relief for contributions is narrower and is limited by the saving clause. Some positions on pensions are disclosed on Form 8833, and the analysis differs between workplace schemes, personal pensions and lump sums.
Primary sources
What this page says is drawn from the official material below. Read it yourself; we would rather be checked than trusted.
Last reviewed
Also in Relief From Double Tax
From the Blog
Need Form 8833 prepared or reviewed?
Tell us where you live, what you hold and which years are outstanding. We will say what applies and what it involves before any work begins.
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