Introduction
You moved to London for a two-year contract. Six years later, you are still here, you have a Barclays account, a workplace pension, possibly a Stocks and Shares ISA, and a sinking feeling every time someone mentions the IRS. You have heard about FBAR. You have heard about Streamlined. You have read three forum threads that contradict each other, and now you are wondering whether the IRS Streamlined Filing or the Delinquent FBAR route is the way out.
This guide is written specifically for Americans living in England, Scotland, Wales, and Northern Ireland, including dual US-UK citizens and Green Card holders. By the end, you will know exactly which program fits your situation, what each one fixes, and what happens if you pick the wrong one. For broader context, see our service page at https://www.taxyork.com/services/.
What Is IRS Streamlined Filing?
The Streamlined Compliance Procedures are an official IRS amnesty designed for US taxpayers whose failure to report foreign income, file US returns, or submit FBARs was non-willful — meaning due to negligence, inadvertence, mistake, or a good-faith misunderstanding of the law.
For Americans living in the UK, the relevant track is the Streamlined Foreign Offshore Procedures (SFOP). It allows you to file three years of late or amended US tax returns, six years of FBARs, and a non-willfulness certification on Form 14653. In exchange, the IRS waives all failure-to-file, failure-to-pay, accuracy, information-return, and FBAR penalties. The 5% offshore penalty under SDOP that applies to US-resident filers does not apply to qualifying UK-based expats.
UK banks now report your accounts directly to the IRS under FATCA via HMRC's Automatic Exchange of Information regime. Hence, the assumption that the IRS will never find you in York, Edinburgh, or Bristol is no longer safe. The official rules are at https://www.irs.gov/individuals/international-taxpayers/streamlined-filing-compliance-procedures.
What Are the Delinquent FBAR Submission Procedures?
The Delinquent FBAR Submission Procedures are a much narrower IRS program. They allow you to file late FBARs (FinCEN Form 114) without penalty, but only if three conditions are met: you have no unreported income tied to the foreign accounts, you have already filed all required US tax returns, and the IRS has not yet contacted you about the missing FBARs.
In practice, this is a very narrow door. Most Americans in the UK who have missed FBARs have also under-reported income — interest from a Lloyds savings account, dividends from a Stocks and Shares ISA, gains inside a UK workplace pension, or NS&I Premium Bonds prizes that the IRS treats as taxable even though HMRC does not. The moment there is any unreported UK-source income, the Delinquent FBAR route closes. FinCEN's official guidance is at https://bsaefiling.fincen.treas.gov/main.html.
Who Qualifies — US Expats in the UK Explained
For Streamlined Foreign Offshore, you must meet the non-residency test: in at least one of the last three years for which the US tax return due date has passed, you were physically outside the United States for at least 330 full days and did not maintain a US abode. Almost every American genuinely living in the UK long-term meets this. You must also certify non-willfulness and not currently be under IRS examination or criminal investigation.
For Delinquent FBAR Procedures, you must have filed all required US tax returns, reported all income from the accounts in question, and have a credible reason for the missed FBARs that does not involve willful concealment. Several UK-specific misconceptions cause real harm. The US-UK tax treaty does not eliminate your obligation to file Form 1040. PAYE does not replace US filing. UK ISAs are not recognized as tax-free by the IRS, and Stocks and Shares ISAs holding non-US funds frequently trigger PFIC reporting on Form 8621. Confirmation is on https://www.irs.gov/individuals/international-taxpayers.
The Core Comparison — IRS Streamlined Filing vs Delinquent FBAR
The IRS Streamlined Filing route provides a complete picture: three years of unfiled or incorrect Form 1040 returns, six years of missing FBARs, and information returns such as Forms 8938, 8621, and 3520. The Delinquent FBAR route fixes only one thing — missing FBARs, whereas everything else is already correct.
Streamlined Foreign Offshore for UK expats costs zero in penalties; you pay only the actual tax due plus interest on the three years of returns. Delinquent FBAR is also penalty-free, but only because you have already filed correct returns and paid all tax owed.
Choosing Delinquent FBAR when you should have used Streamlined is the most damaging mistake. If the IRS later finds unreported UK income, you have voluntarily disclosed the accounts without the protection of a non-willfulness certification, and you can face the full schedule of FBAR and income-tax penalties.
Step-by-Step: Using IRS Streamlined Filing as a UK Expat
First, confirm eligibility under the non-residency test using travel records and UK tenancy or HMRC residency confirmation. Second, gather six years of UK financial records from every account, ISA, NS&I product, and workplace pension where the aggregate balance exceeded $10,000 at any point in the year. Third, prepare three years of Form 1040 with Form 2555 or Form 1116, plus Form 8938 and Form 8621 where required. Fourth, prepare six years of FBARs through the FinCEN BSA E-Filing system, marked as filed under Streamlined. Fifth, draft Form 14653 — the non-willfulness certification, which the IRS reads carefully and which must be specific to your real life and history. Sixth, post the package to the IRS Austin processing center and pay any tax and interest due. Form instructions are at https://www.irs.gov/forms-pubs/about-form-14653.
Real UK Expat Scenario — Streamlined in Practice
David, an American software engineer, moved from Seattle to London in 2019. He opened a Barclays account, a Marcus savings account, contributed to his employer's workplace pension, and in 2022 opened a Stocks and Shares ISA holding three Vanguard UK index funds. He paid UK tax through PAYE and filed nothing in the US.
In late 2025, Barclays sent him a FATCA self-certification form requesting his US TIN. He contacted TaxYork. We identified six years of unfiled Form 1040 returns, six years of missing FBARs, three years of missing Form 8938, and a serious PFIC problem inside the ISA.
We filed under SFOP. Three years of Form 1040 with Foreign Tax Credit on Form 1116 fully offset his US tax; his UK tax bill was higher than the US equivalent in every year. Six years of FBAR, three years of Form 8938, three years of Form 8621 with mark-to-market elections, and a detailed Form 14653 certification completed the package. Outcome: full compliance, zero penalties, zero net US tax across the three years, and a clear PFIC strategy going forward.
Penalties for Non-Compliance
Outside of amnesty, the penalty schedule is genuinely frightening. FBAR non-willful penalties are up to $10,000 per form per year. Willful FBAR penalties are the greater of $100,000 or 50% of the account balance per year. Failure to file Form 1040 results in a 5% penalty on the unpaid tax per month, up to 25%. Form 8938 carries an initial penalty of $10,000, rising to $50,000. The Form 3520 penalty for unreported foreign gifts or trusts is 35% of the amount.
This is precisely why IRS Streamlined Filing matters so much for UK-based Americans. For non-willful expats meeting the SFOP non-residency test, all of these penalties are waived. The IRS penalty relief overview is at https://www.irs.gov/payments/penalty-relief.
Comparison Table — Streamlined vs Delinquent FBAR
Feature
Streamlined Foreign Offshore
Delinquent FBAR Procedures
Fixes missing tax returns
Yes — three years
No
Fixes missing FBARs
Yes — six years
Yes
Fixes Form 8938, 8621, 3520
Yes — three years
No
Unreported income permitted
Yes
No
Non-willfulness certification
Required (Form 14653)
Not required
Penalties waived
All, including 5% offshore
FBAR penalties only
Right tool for a typical UK expat
Almost always
Rarely
How TaxYork Helps Americans in the UK
TaxYork specializes exclusively in US-UK expat tax matters. Our team includes IRS Enrolled Agents and CPAs authorized to represent taxpayers before the IRS, with day-to-day experience of UK ISAs, workplace pensions, PFIC analysis, and Self Assessment crossovers.
We handle Streamlined Foreign Offshore submissions end-to-end: eligibility analysis, six years of FBAR, three years of returns with proper Form 1116 or 2555 optimization, full information-return compliance, PFIC modeling, and the Form 14653 narrative. For related reading, see https://www.taxyork.com/blog/. Contact us at info@taxyork.com or https://www.taxyork.com — we help Americans in the UK get fully IRS-compliant, almost always with all penalties eliminated.
Conclusion
For the vast majority of Americans living in the UK who are behind on US filings, the Streamlined Foreign Offshore Procedure is the right answer because it addresses returns and FBARs, with full penalty relief. The Delinquent FBAR Submission Procedures are a narrower tool reserved for cases with no unreported income. Choosing wrongly can convert a clean amnesty into open exposure. The right move for any UK-based American with doubts is a proper eligibility analysis before anything is filed.