Introduction Every American living in the UK has two tax statuses that matter — but most people focus on only one. The US status is the one they know about: US citizen, subject to worldwide income taxation regardless of where they live. The UK status is the one that often surprises them: UK resident and […]
Every American living in the UK has two tax statuses that matter — but most people focus on only one.
The US status is the one they know about: US citizen, subject to worldwide income taxation regardless of where they live.
The UK status is the one that often surprises them: UK resident and potentially non-UK domiciled — a distinction that profoundly affects the UK tax treatment of foreign income and the tax that can be credited against the US liability.
When an American abroad uses the US tax amnesty program for Americans abroad — the IRS Streamlined Filing Compliance Procedures — both of these statuses matter. The non-residency test for the foreign track depends on the Statutory Residence Test. The non-wilfulness narrative is strengthened or weakened by the clarity of the individual’s UK tax position. And the foreign tax credit on the catch-up returns is directly affected by whether the individual was on the remittance basis or the arising basis during the relevant years.
This guide explains exactly how domicile and residency planning intersect with the Streamlined catch-up process. Contact Jungle Tax at https://www.jungletax.co.uk/ for specialist guidance.
The US tax amnesty program for Americans abroad is the informal name for the IRS Streamlined Foreign Offshore Procedures — the voluntary compliance route for non-wilful non-filers who are resident outside the United States.
To use the foreign track, the taxpayer must satisfy a non-residency requirement. Specifically, in at least one of the three most recent US tax years for which a return was due, the taxpayer must not have had a US abode and must not have been present in the United States for 330 or more days.
For most Americans who have been living in the UK for several years, this test is straightforward to meet. But it must be documented — and it interacts with the UK Statutory Residence Test in ways that advisers unfamiliar with both systems may not recognize.
The full IRS Streamlined Filing Compliance Procedures are published at:
https://www.irs.gov/individuals/international-taxpayers/streamlined-filing-compliance-procedures
UK domicile is not the same as UK residence. A person can be UK resident — and subject to UK income tax on UK-source income — without being UK-domiciled.
Before April 2025, a non-UK-domiciled individual who was a UK resident could claim the remittance basis — sheltering foreign income and gains from UK tax by not remitting them to the UK.
In the Streamlined context, this distinction matters in two ways.
First, an individual who claimed the remittance basis paid less UK tax on foreign income in the relevant years. This reduces the foreign tax credit available on the catch-up US returns — potentially increasing the net US tax owed.
Second, the domicile and residency history affect the strength of the non-wilfulness narrative. A non-UK-domiciled American who was diligently paying UK tax on remitted income but was unaware of the US filing obligation has a clear and credible narrative.
This guide is written for US citizens and permanent residents living in the UK who have not been filing US returns and whose UK tax position — including their domicile status — is relevant to their Streamlined submission.
It is equally relevant to dual nationals, to those who have recently arrived in the UK, and to Americans who have been living in the UK for many years under the remittance basis and are now transitioning to the new FIG regime.
From April 2025, the UK abolished the remittance basis and replaced it with the Foreign Income and Gains regime.
For a US person who was previously on the remittance basis, this change means their UK tax position has shifted materially from the 2025-26 tax year onwards. The income that was previously sheltered from UK tax — and therefore produced no foreign tax credit against the US liability — is now taxed in the UK on an arising basis after four years of residence.
For someone who is also catching up on late US filings, this creates a specific sequencing issue: the catch-up returns must reflect the correct UK tax treatment for each of the three relevant years, which may be different from the treatment in 2025-26 and beyond.
The IRS non-residency test for the Streamlined foreign track uses the concept of ‘US abode’ — not the UK Statutory Residence Test. But the two tests interact.
An individual who is a UK resident under the SRT has clearly established a non-US abode. Their UK residency history — established through their self-assessment returns and National Insurance records — provides documentary evidence for the non-residency certification.
Our related guide on US and UK tax advisors for the non-dom to FIG regime transition explains the SRT and FIG regime in detail.
Under the US-UK Double Taxation Convention, a dual-resident individual — someone who is tax-resident in both the US and the UK simultaneously — can claim treaty tie-breaker status as a UK resident.
This position affects the non-wilfulness narrative. An individual who was a UK treaty resident throughout the relevant period has a clear and documented basis for their belief that they had no US tax obligations — a belief that, while incorrect, is more credible and more defensible than one who had less clearly established UK residency.
The Streamlined Foreign Offshore Procedures require the taxpayer to certify on Form 14653 that they meet the non-residency requirement.
The certification is supported by documentation. A specialist adviser preparing an elite Streamlined submission will gather: UK self-assessment returns for the relevant years showing UK residence; P60s or payslips confirming UK employment; National Insurance contribution records; utility bills, bank statements, and lease agreements confirming UK address; and — where the individual had any US presence — documentation confirming that US time did not exceed the 329-day threshold in any of the three years.
For an individual who is clearly and unambiguously a UK resident — with years of UK tax returns, UK employer, UK bank accounts, and no significant US presence — the non-residency certification is straightforward.
For an individual who travels frequently between the UK and the US — for business or to visit family — the analysis is more careful. The 330-day test must be confirmed for at least one of the three tax years, and the documentation must support it.
The foreign tax credit on the catch-up returns is calculated based on the UK tax actually paid on the relevant income.
For a non-UK-domiciled individual who was on the remittance basis during the three catch-up years, the UK tax paid on foreign income may have been zero if that income was not remitted to the UK.
This means the foreign tax credit on the catch-up US returns is also zero for that income, and the full US tax liability applies.
For a UK-domiciled individual — or a non-UK-domiciled individual who was on the arising basis — the UK tax paid on the same foreign income generates a foreign tax credit that offsets the US liability. The net US tax on the catch-up returns is therefore typically lower for individuals who were on the arising basis than for those who were on the remittance basis.
The non-wilfulness certification on Form 14653 requires a specific narrative explaining how the non-compliance arose.
A diligent UK tax compliance history — years of self-assessment returns, correct PAYE payments, and engagement with a UK accountant — is the single strongest piece of evidence for non-wilfulness.
The narrative of a non-UK-domiciled American who was carefully paying UK tax on a remittance basis — but who genuinely did not know about the US filing obligation — is particularly compelling. It demonstrates responsible tax behavior, an established UK life, and a good-faith misunderstanding of the US filing obligation, rather than deliberate evasion.
Specialist US tax amnesty program for Americans abroad: advisers, draft this narrative with the full UK tax history in mind — using the self-assessment records and the domicile position as evidence supporting the non-wilfulness claim.
Managing the Streamlined submission when domicile and residency are relevant to the non-residency test and the non-wilfulness narrative requires a structured approach.
Step one — UK residency and domicile status confirmation.
The adviser confirms the individual’s UK residency history under the Statutory Residence Test for each of the three return years. The UK domicile position — UK-domiciled or non-UK-domiciled — is established for each year.
Step two — Non-residency test analysis.
The adviser confirms that the individual meets the IRS non-residency requirement for the Streamlined foreign track. US days of presence are counted for each of the three years. The evidence for the non-US abode position is gathered and documented.
Step three — Remittance basis or arising basis determination for each year.
For non-UK-domiciled individuals, the adviser confirms whether the remittance basis was claimed in each of the three return years. This determines the UK tax paid on foreign income in each year — and therefore the foreign tax credit available on each catch-up US return.
Step four — Foreign income reconstruction.
All foreign income received during the three return years is identified. For individuals on the remittance basis, the remitted and non-remitted portions are identified separately.
Step five — Return preparation reflecting the correct UK tax treatment.
The three catch-up US returns are prepared reflecting the correct UK tax paid in each year. The foreign tax credit is calculated based on the actual UK tax, which may be zero for non-remitted income in remittance-basis years, and the full-year basis rate in other years.
Step six — Non-wilfulness narrative drafting.
The narrative incorporates the full UK tax compliance history — domicile position, remittance basis elections where applicable, self-assessment returns filed, and UK accountant engagement. The narrative explains clearly how the misunderstanding of the US filing obligation arose, using the UK tax history as evidence of good faith.
Step seven — FBAR and FATCA filing.
FBARs are filed for the six relevant years. The FBAR covers all foreign financial accounts — including UK ISAs, SIPPs, and investment accounts — regardless of the domicile position or remittance basis election. The FinCEN BSA E-Filing system is available at:
https://bsaefiling.fincen.treas.gov/main.html
The HMRC guidance on the UK Statutory Residence Test is published at:
https://www.gov.uk/guidance/statutory-residence-test-srt
Sanjay is a US citizen of Indian origin. He has been a UK resident for eight years.
He was born in the United States, has Indian ancestry, and has always considered himself non-UK-domiciled. During his eight years in the UK, he has paid UK income tax through PAYE on his UK employment income. He also holds an offshore investment account in Singapore that generates approximately $45,000 per year in dividends and interest. For most of the eight years, he claimed the remittance basis and did not remit the Singapore income to the UK.
Sanjay had never filed a US tax return since leaving the United States.
When he approached Jungle Tax, the review identified the following.
First, Sanjay clearly met the IRS non-residency requirement for the Streamlined foreign track. He had been a UK resident throughout and had never been present in the United States for more than 90 days in any year.
Second, the Singapore investment income had not been remitted to the UK during the remittance basis years. UK tax on that income was zero in those years. The foreign tax credit on the catch-up US returns for those years was therefore also zero, and the full US tax on the Singapore income applied.
Third, from April 2025 — when the FIG regime came into force — Sanjay’s Singapore income became taxable in the UK on an arising basis (because he had been a UK resident for more than four years and was not eligible for the new FIG relief). The UK tax on the arising basis income generated a foreign tax credit for the 2025 US return.
Fourth, Sanjay’s non-wilfulness narrative was particularly strong. He had eight years of UK self-assessment returns, a well-documented remittance basis history, and a clear UK accountant engagement. The narrative explained that he had believed — correctly — that the remittance basis sheltered his Singapore income from UK tax, and had — incorrectly — extended that belief to assume it also sheltered the income from US tax.
A Streamlined Foreign Offshore Procedures submission was prepared.
The additional US tax on Singapore income over three years — with zero foreign tax credit in the remittance-basis years — amounted to approximately $12,400. No miscellaneous offshore penalty applied.
Sanjay now files annual US returns as part of an ongoing engagement, with the UK return arising on a basis that generates a foreign tax credit, reducing the net US liability going forward.
Contact our US tax amnesty program for Americans abroad team at hello@jungletax.co.uk or 0333-8807974 if your situation has similarities.
The foreign tax credit on each catch-up return depends on the UK tax actually paid in that year.
An adviser who applies the same foreign tax credit to all three years — without checking whether the remittance basis was claimed — will produce incorrect returns. In remittance basis years, the UK tax on non-remitted foreign income was zero. Using an incorrect credit produces either an overstated credit or an understated one — both of which create IRS examination risk.
The single strongest piece of evidence for non-wilfulness is a documented history of diligent UK tax compliance.
Many Streamlined narratives simply state, ‘I was unaware of the US filing obligation.’ A stronger narrative for a non-UK-domiciled American explains the remittance basis, the UK self-assessment history, and the specific misunderstanding that the UK tax framework also shelters income from US tax. Getting this narrative right is one of the most important things that specialist US tax amnesty program for Americans abroad advisers do.
The non-residency test requires that the individual have had no US abode in at least one of the three relevant years and have been present in the United States for fewer than 330 days in that year.
For most Americans who have lived in the UK for many years, this test is easily met. But it is not automatic. It must be confirmed — and documented — for each submission. An adviser who does not verify the days of US presence risks submitting a Streamlined package for an individual who does not qualify for the foreign track.
The April 2025 non-domicile reform changed the UK tax treatment of foreign income for many long-term UK residents.
For a Streamlined submission covering years that straddle the April 2025 reform date, the correct UK tax treatment — and therefore the correct foreign tax credit — must be established separately for the pre-reform and post-reform periods. The HMRC guidance on the Statutory Residence Test is published at:
https://www.gov.uk/guidance/statutory-residence-test-srt
A common error among non-UK-domiciled Americans using the Streamlined program is omitting non-remitted foreign income from the catch-up returns. The rationale — that the income was not remitted to the UK and was therefore not taxable — is a UK tax concept. It has no bearing on the US filing obligation.
The United States taxes worldwide income regardless of where it is held or whether it is remitted to any particular country. Non-remitted foreign income must be reported on the US federal return — even if it was sheltered from UK tax under the remittance basis.
Jungle Tax is a specialist US-UK cross-border tax advisory firm. Our team includes IRS Enrolled Agents and UK-qualified tax practitioners with specific expertise in both the Streamlined Filing Compliance Procedures and the UK domicile and residency rules.
We manage the full Streamlined submission for Americans in the UK — including the non-residency analysis under the SRT, the remittance basis or arising basis determination for each catch-up year, the correct foreign tax credit calculation, and the non-wilfulness narrative that draws on the full UK tax compliance history to build the strongest possible case.
We also advise on the ongoing compliance framework — including how the new FIG regime interacts with the US worldwide income obligation and the correct foreign tax credit position going forward from April 2025.
You can find further information on our page at https://www.jungletax.co.uk/, or read our related guide to US expat tax services for Americans catching up on late filings.
If you are an American living in the UK — whether UK-domiciled or non-UK-domiciled — and you have not been filing US returns, contact our team at hello@jungletax.co.uk or call 0333-8807974 today.
The US tax amnesty program for Americans abroad operates at the intersection of US and UK tax law, and domicile and residency planning affect the submission in ways that most advisers do not fully understand.
Three points from this guide matter most.
First, the foreign tax credit on catch-up returns depends on the UK tax actually paid, which, in a remittance-based year, may have been zero on non-remitted foreign income. This must be calculated correctly for each year.
Second, the UK tax compliance history — including the remittance basis election and the self-assessment returns — is the single strongest evidence for the non-wilfulness certification.
Third, non-remitted foreign income must still be reported on the US federal return — even if it was sheltered from UK tax under the remittance basis. The US worldwide income obligation is not affected by the UK remittance basis.
Speak to a Jungle Tax adviser today — contact us at hello@jungletax.co.uk or visit https://www.jungletax.co.uk/ to learn more.
UK domicile does not directly determine eligibility for the Streamlined foreign track — the IRS non-residency test does. However, UK domicile affects the UK tax paid on foreign income in the relevant years, which in turn affects the foreign tax credit available on the catch-up returns. A non-UK-domiciled individual who claimed the remittance basis paid less UK tax on non-remitted foreign income — and therefore has a smaller foreign tax credit to offset the US liability on that income. UK domicile also affects the strength of the non-wilfulness narrative, which can use the remittance basis history as evidence of responsible UK tax compliance.
Yes. The United States taxes worldwide income regardless of where it is held or whether it is remitted to any particular country. Non-remitted foreign income — income that was sheltered from UK tax under the remittance basis — is still taxable in the United States in the year it was received. The remittance basis is a UK tax concept. It has no bearing on the US filing obligation. Omitting non-remitted income from the catch-up US returns makes the submission incomplete and undermines the protection the Streamlined program offers.
The non-domicile reform abolished the remittance basis from April 2025 and replaced it with the Foreign Income and Gains regime. For a Streamlined submission covering the three most recent US tax years, the years that overlap with the post-April 2025 UK tax year must reflect the new UK tax treatment, which may be the arising basis if the individual has been UK resident for more than four years. The foreign tax credit for those years is calculated on the UK tax actually paid under the new regime. The correct treatment must be established separately for each year in the submission.
The IRS non-residency requirement for the Streamlined foreign track requires the individual to have had no US abode and fewer than 330 days of US presence in at least one of the three relevant tax years. UK residency under the SRT — confirmed through self-assessment returns, employment records, and National Insurance contribution histories — provides strong documentary evidence that the individual’s abode was in the UK rather than the United States. A specialist adviser uses this UK residency documentation to support the non-residency certification on Form 14653.
Yes — and you should. A diligent UK tax compliance history is the strongest available evidence for non-wilfulness. For a non-UK-domiciled American who was carefully paying UK tax under the remittance basis, the narrative can explain that the individual believed — based on the UK remittance basis framework — that foreign income not remitted to the UK was sheltered from tax. The misunderstanding — that this belief extended to US tax as well as UK tax — is a credible and sympathetic explanation that IRS examiners routinely accept as non-wilful.
UK residence — established under the Statutory Residence Test — determines whether an individual is subject to UK income tax in a given tax year. UK domicile — a common-law concept based on an individual’s permanent home and intention — determines whether the individual could claim the remittance basis before April 2025 and whether their worldwide estate is subject to UK inheritance tax. For the Streamlined submission, UK residence is relevant to the non-residency certification for the IRS foreign track. UK domicile is relevant to the UK tax paid on foreign income — and therefore the foreign tax credit — in each catch-up return year.
