What is the non-residency requirement for a US citizen living in the UK?

For US citizens and lawful permanent residents, the IRS requires that in any one or more of the most recent three years for which the US tax return due date has passed, the individual did not have a US abode and was physically outside the United States for at least 330 full days. Both limbs must be met in the same year, but only one qualifying year is needed. Where a joint return is filed, both spouses must meet the requirement. Abode is a distinct concept from tax residence or domicile and turns on your continuing ties to a US home.

Can I file the streamlined package electronically?

No. The IRS states that the streamlined package is submitted in paper form only and that electronic submissions will not be accepted. It is posted to Internal Revenue Service, 3651 South I-H 35, Stop 6063 AUSC, Attn: Streamlined Foreign Offshore, Austin, TX 78741, and that address may be used only for returns filed under these procedures. The six years of FBARs are the exception: they are filed electronically through the FinCEN BSA E-Filing System, separately from the paper package.

Will the IRS confirm that my Streamlined Foreign Offshore Procedures submission was accepted?

No. The IRS states that receipt of the returns will not be acknowledged and that the streamlined filing process will not culminate in the signing of a closing agreement. There is no approval letter and no formal completion. The practical substitutes are your proof of delivery, your cleared payment, your FBAR confirmation numbers and, in due course, IRS account transcripts showing the returns as filed. Keep all of these together, because they are the only evidence of the submission you will hold.

Do I still owe US tax if I already pay UK tax on the same income?

Often very little, but the three years still have to be computed properly rather than assumed to be nil. GOV.UK confirms on its page Tax on foreign income that relief may be available where you are taxed in more than one country, and UK tax paid on the same income generally supports a foreign tax credit against the US liability. For most UK-resident filers the credit absorbs the US tax on employment income, with any residual arising on investment categories the credit does not neatly cover. If your UK position also needs correcting, settle that first, because it changes the credit and therefore the US figures you certify.

Streamlined Foreign Offshore Procedures: 2026 Walkthrough

Q: Is there a penalty under the Streamlined Foreign Offshore Procedures?

No. The IRS states that eligible filers under the Streamlined Foreign Offshore Procedures will not be subject to failure-to-file and failure-to-pay penalties, accuracy-related penalties, information return penalties, or FBAR penalties. You pay the tax shown on the three years of returns plus all applicable statutory interest on the late payment amounts. The Title 26 miscellaneous offshore penalty of 5 percent belongs to the domestic streamlined procedure for taxpayers residing in the United States, not to the foreign procedure.

Q: How many years of returns and FBARs does the Streamlined Foreign Offshore Procedures package cover?

The IRS requires delinquent or amended returns for each of the most recent three years for which the US tax return due date, or properly applied for extended due date, has passed. It separately requires delinquent FBARs for each of the most recent six years for which the FBAR due date has passed. The two periods do not align, so an account may need to appear on the FBARs for years in which no return is being filed. Filing extra years beyond these periods is not required and generally creates avoidable risk.

The Streamlined Foreign Offshore Procedures are the IRS route by which a US citizen or lawful permanent resident living outside the United States brings years of unfiled or understated federal tax returns and unfiled FBARs into full compliance without penalties, provided the failures were non-willful and the non-residency requirement is met. For a UK-resident taxpayer with a substantial balance sheet, this is not a form-filling exercise. It is a controlled disclosure with a defined sequence, a fixed package, a paper-only filing channel and no confirmation at the end. This guide walks that sequence from start to finish.

The short answer to what you actually file: three years of delinquent or amended returns, six years of delinquent FBARs, and one signed certification. The IRS sets this out on its page U.S. taxpayers residing outside the United States. The return period covers each of the most recent three years for which the US tax return due date, or properly applied for extended due date, has passed; the FBAR period covers each of the most recent six years for which the FBAR due date has passed. If you are eligible, the IRS states you will not be subject to failure-to-file and failure-to-pay penalties, accuracy-related penalties, information return penalties, or FBAR penalties.

Three years of Form 1040 or 1040-X returns, complete and including every required international information return
Six years of FinCEN Form 114 (the FBAR), filed electronically through the FinCEN BSA E-Filing System
One original signed Form 14653, Certification by U.S. Person Residing Outside of the U.S., with copies attached to each return
Payment of all tax due plus all applicable statutory interest on each late payment amount
The words Streamlined Foreign Offshore written in red at the top of the first page of every return and information return
A paper package posted to the dedicated Austin, Texas address, because electronic submission of the package is not accepted

What are the Streamlined Foreign Offshore Procedures?

The Streamlined Foreign Offshore Procedures are one of two tracks inside what the IRS calls the Streamlined Filing Compliance Procedures. The foreign track is for taxpayers who meet a non-residency requirement. The domestic track, described on the IRS page U.S. taxpayers residing in the United States, is for those who do not. The two tracks share a structure but differ on one commercially decisive point: the domestic track carries a Title 26 miscellaneous offshore penalty, and the foreign track does not. Everything that follows in this walkthrough is therefore ordered so that the eligibility questions which determine which track you fall into are settled before any return is drafted.

Two threshold conditions sit above everything. First, the failures must have been non-willful. The IRS defines non-willful conduct as conduct that is due to negligence, inadvertence, or mistake or conduct that is the result of a good faith misunderstanding of the requirements of the law. Second, you must not already be under scrutiny. If the IRS has initiated a civil examination or a criminal investigation, the streamlined route is closed to you regardless of the merits. Penalties already assessed are not abated by a streamlined submission. Where conduct may have been willful, the IRS directs taxpayers to consider the IRS Criminal Investigation Voluntary Disclosure Practice instead, and that decision should be taken before anything is posted.

Stage 1: Scoping the years, the accounts and the assets

Scoping is where most submissions are won or lost, and it is done before a single form is opened. You are building two overlapping periods that do not line up: a three-year return period and a six-year FBAR period. A filer who has been out of the system for a decade does not file ten years of returns. They file three. But the FBAR period reaches back twice as far, and those six years of FBARs must be consistent with the income reported on the three years of returns and with what the IRS may already hold from FATCA reporting by UK financial institutions.

For a high-net-worth filer the account inventory is rarely a simple list of bank accounts. It typically spans clearing bank accounts, private bank and wealth platform accounts, stocks and shares ISAs and general investment accounts holding UK-domiciled funds and OEICs, offshore fund holdings, share plan accounts, closely held UK company shareholdings, and accounts over which you hold signature authority but no beneficial interest. Every one of those has an FBAR consequence, a FATCA consequence, or both.

The FBAR threshold is an aggregate test, not a per-account test. The IRS page Report of Foreign Bank and Financial Accounts (FBAR) sets it at an aggregate value of foreign financial accounts exceeding 10,000 US dollars at any time during the calendar year, so a filer with fifteen modest accounts crosses it easily. Form 8938 under FATCA has separate and much higher thresholds. The IRS page Summary of FATCA reporting for U.S. taxpayers gives them for taxpayers living abroad as more than 200,000 US dollars on the last day of the tax year or more than 300,000 US dollars at any time for an unmarried filer, and more than 400,000 US dollars on the last day or more than 600,000 US dollars at any time for married taxpayers filing jointly.

Build a single account register covering the full six-year FBAR window, including accounts closed part way through
Record, for each account and each year, the maximum value during the year, not the closing balance, because that is what the FBAR asks for
Flag every account where you hold signature authority only, which is reportable even without a beneficial interest
Identify holdings in UK-domiciled funds, OEICs and offshore funds, which carry separate US reporting and income characterisation consequences
Identify any non-US company in which you hold a controlling or substantial interest, which brings Form 5471 into the package
Note whether any of those companies triggers section 965 reporting, which the IRS addresses on its page Streamlined filing compliance procedures and section 965
Reconcile the register against what UK institutions are likely to have reported to the IRS under FATCA

Stage 2: Do you meet the non-residency requirement?

The non-residency requirement is the gateway to the foreign track. For US citizens and lawful permanent residents, the IRS states that in any one or more of the most recent three years for which the US tax return due date has passed, the individual did not have a US abode and was physically outside the United States for at least 330 full days. It is a two-limb test and both limbs must be satisfied in the same year, but it is a one-in-three test rather than a three-out-of-three test: a single qualifying year is enough. Where a joint return is filed, both spouses must meet the requirement.

The abode limb is the one that catches wealthy UK residents. Abode is not the same as domicile, tax residence or where your post is delivered. The IRS confirms in its published streamlined FAQs that the reference to IRC section 911 and its regulations is only to the parts of those authorities that define abode. In practice, a filer who has lived in London for years but retained a maintained and available US home, a US driving licence, US voter registration and a pattern of long US visits is exposed on the abode limb even if the day count is comfortable. Conversely the 330-day limb is a hard arithmetic test measured in full days outside the United States, and a filer with heavy transatlantic travel can fail it in a year they assumed was safe.

Get this wrong and you do not merely make a technical error: you file under the wrong procedure, and the wrong procedure is the one with the penalty. Evidence the qualifying year with passport stamps, boarding passes, employment records and property records before you go any further.

Stage 3: Testing non-willfulness before you commit

Non-willfulness is certified under penalties of perjury, and it is the assertion most likely to be tested if the submission is later examined. The IRS standard is conduct due to negligence, inadvertence, or mistake, or conduct resulting from a good faith misunderstanding of the requirements of the law. The test turns on your state of knowledge and belief at the time, not on how sophisticated you are or how large your assets were. Wealthy filers sometimes assume that financial sophistication automatically defeats a non-willfulness claim. It does not. What defeats it is evidence of awareness of the obligation coupled with a decision not to meet it.

The honest test to apply before drafting is whether the full factual record, favourable and unfavourable, supports the certification. Answering a direct question about foreign accounts incorrectly on a signed return is a fact you must confront, not omit; so is receiving written advice that a filing was required and setting it aside. If the record does not support non-willfulness, the correct step is to consider the IRS Criminal Investigation Voluntary Disclosure Practice instead. A knowingly false streamlined certification is a far worse position than the original non-compliance.

Stage 4: Reconstructing records a UK bank no longer holds

This stage is skipped by almost every published guide, and it is where high-net-worth submissions actually stall. The FBAR asks for the maximum value of each account during each calendar year, and you need that figure for six years and for every account, including accounts that were closed, platforms that were migrated and private bank relationships that were wound up. UK institutions are not obliged to hand you a decade of statements on request, and closed-account records in particular are frequently unavailable. The reconstruction therefore has to be methodical and documented, because the method itself becomes part of the file you may later have to defend. Work down a hierarchy from best evidence to reasonable estimate, record which tier each figure came from, and never silently guess.

Tier one: original statements, contract notes and annual valuations obtained directly from the institution
Tier two: online banking or platform exports, consolidated wealth reports and annual tax vouchers or certificates of interest
Tier three: UK Self Assessment returns and supporting schedules, which fix income and often imply balances
Tier four: mortgage, lending or account-opening applications, which typically state asset values at a point in time
Tier five: a documented reasonable reconstruction from opening balance plus known flows, clearly labelled as such
Throughout: request records in writing early, because UK institutions can take weeks to retrieve archived material

Stage 5: Preparing three years of returns and six years of FBARs

The returns come first because they drive the payment. Each of the three years is prepared as a complete return. If you filed nothing for a year, you file a delinquent Form 1040; if you filed but understated, you file an amended Form 1040-X. Every required international information return goes in with the return it belongs to, which for a UK-resident filer of substance commonly means Form 8938 for specified foreign financial assets, Form 5471 where a non-US company interest is held, and the reporting that applies to offshore fund holdings. Where a specified foreign corporation is involved, the returns must also address section 965 where relevant, as the IRS sets out on its dedicated page.

This is also the stage where the US tax actually payable is determined, and for most UK-resident filers it is far smaller than they fear. UK tax paid on the same income generally supports a foreign tax credit against the US liability, and earned income may qualify for exclusion. Because UK headline rates on employment income sit above US federal rates across most of the range a high earner occupies, the credit frequently absorbs the US liability on that income entirely. Residual liabilities usually arise in categories the credit does not neatly cover, such as gains on offshore fund holdings or income falling in a year where the UK and US tax years do not align. Model each year properly rather than assuming a nil result.

The FBARs are filed separately and electronically; they do not go in the paper package. Each of the six years is filed through the FinCEN BSA E-Filing System as FinCEN Form 114. When the system asks the reason for filing late, you select Other and enter Streamlined Filing Compliance Procedures in the explanation box. That entry is what links the electronic FBAR filings to the paper package sitting in Austin, and omitting it is a common and avoidable defect. The FBAR is normally due 15 April with an automatic extension to 15 October, and it is filed independently of the tax return in every year, including the years after your streamlined submission.

Stage 6: Drafting Form 14653

Form 14653, Certification by U.S. Person Residing Outside of the U.S., is the document the IRS reads first and the one that determines how the rest of the package is received. It does three jobs: it certifies that you meet the non-residency requirement, certifies that all required FBARs have now been filed, and carries the narrative statement of facts explaining why the failures happened. The IRS requires specific facts, not a general assertion of good intentions, and the narrative must include the unfavourable facts alongside the favourable ones.

Your personal and financial background across the non-compliant years, including where you lived and worked and how you came to be outside the US system
How and when each foreign account or asset was opened or acquired, and the source of the funds in it
Who managed the assets and how actively you were involved in decisions about them
What you understood your US filing obligations to be at the time, and why you understood it that way
Whether you engaged a tax adviser, what you told them, what they told you, and their name and contact details where relevant
How and when you discovered the obligation, and what you did between discovery and this submission
The specific facts supporting the non-residency requirement in the qualifying year

Two mechanical points matter as much as the drafting. First, you submit the original signed Form 14653 with the package and attach a copy of the completed form to each tax return and each information return in it. Second, joint filers must both sign and both must meet the non-residency requirement. Where a joint amended return shows a tax increase and one spouse genuinely cannot sign, the IRS published streamlined FAQs allow a single-signature submission: you write SFO FAQ 7 in the space for the missing signature and explain the circumstances. That accommodation does not extend to returns showing a net decrease in tax, which require both signatures.

Stage 7: How does the Title 26 miscellaneous offshore penalty work under the Streamlined Foreign Offshore Procedures?

It does not apply. This is the single most misunderstood point in the whole area, and it is worth stating plainly: there is no Title 26 miscellaneous offshore penalty under the Streamlined Foreign Offshore Procedures. The penalty belongs to the domestic track. On its page for US taxpayers residing in the United States, the IRS states that the Title 26 miscellaneous offshore penalty is equal to 5 percent of the highest aggregate balance or value of the taxpayer's foreign financial assets. A filer who qualifies for the foreign track pays back tax and statutory interest and nothing else.

Understanding how that 5 percent base is built explains why Stage 2 deserves the effort. The IRS determines the highest aggregate balance or value by aggregating the year-end account balances and year-end asset values of all the foreign financial assets subject to the penalty for each of the years in the covered tax return period and the covered FBAR period, and then selecting the highest aggregate from among those years. In other words the base is not an average and not a current value. It is the worst single year-end across a six-year measurement window, applied to the whole asset base rather than to the unreported portion alone.

For a UK-resident filer with several million pounds of reportable assets, that arithmetic converts an abode question into a six-figure question. A filer whose asset base peaked at four million pounds at a year end would face a penalty measured in hundreds of thousands under the domestic track and nothing at all under the foreign one. Scale the analysis at Stage 2 to the size of that number, not to the size of the unpaid tax.

Stage 8: Assembling, paying and mailing the package

The package is paper and only paper. The IRS is explicit that these documents are sent in paper form and that electronic submissions will not be accepted for the streamlined package. Write Streamlined Foreign Offshore in red at the top of the first page of each delinquent or amended tax return and at the top of each information return. That red annotation is the routing instruction that keeps your returns inside the streamlined process rather than being handled as ordinary late filings. Assemble the three years in a clear order, with the original signed Form 14653 on top and a copy of it attached to each return within.

The package goes to Internal Revenue Service, 3651 South I-H 35, Stop 6063 AUSC, Attn: Streamlined Foreign Offshore, Austin, TX 78741. The IRS states that this address may be used only for returns filed under these procedures and that all future filings must follow regular filing procedures. Payment covers all tax due as reflected on the returns plus all applicable statutory interest on each late payment amount, and your taxpayer identification number must be included on the payment. If you do not yet hold a valid identification number you apply for one concurrently, because the published FAQs make clear that a submission without a valid number will be processed subject to the penalties that apply outside the streamlined procedures. Before the package leaves your hands, copy it in full, post it by a method that produces independent proof of delivery, and record the posting and delivery dates, the payment reference and the confirmation numbers for all six e-filed FBARs in one place. That is your evidence file, and Stage 9 explains why you will need it.

Stage 9: What happens after you submit?

Nothing visible, and that is the intended outcome. The IRS states that receipt of the returns will not be acknowledged and that the streamlined filing process will not culminate in the signing of a closing agreement. There is no approval letter, no case number and no completion notice, so a submission that has gone entirely to plan looks identical from the outside to one lost in the post. The only signals you will get are your payment clearing and, in time, your account transcripts reflecting the filed returns.

The IRS is equally clear about what the absence of a closing agreement means. Streamlined returns are not subject to IRS audit automatically, but they may be selected for audit under the existing audit selection processes that apply to any US tax return, and they may be subject to verification procedures in which the accuracy and completeness of the submission is checked against information received from banks, financial advisers and other sources. For a UK-resident filer that verification data is not hypothetical, because UK financial institutions report account information under FATCA. That is precisely why the account register built at Stage 1 needed to be complete rather than convenient.

There is also a defined route for correcting a submission after it has been posted. The published streamlined FAQs allow an amended streamlined submission provided an examination has not begun: you mark the relevant documents as amended in red ink, explain the circumstances, and pay any additional tax and interest. That route closes once the IRS opens an examination, which is another reason to complete the scoping work properly the first time.

Where does the UK side fit? HMRC, credits and order of operations

A US filer in the UK is very often correcting two positions at once, and the sequence matters. GOV.UK confirms on its page Tax on foreign income that if you are UK resident you will normally pay tax on your foreign income, and that relief may be available where you are taxed in more than one country. Where UK tax has genuinely been underpaid on offshore income or gains, HMRC operates its own disclosure route, described on the GOV.UK page Make a disclosure using the Worldwide Disclosure Facility, which runs through the Digital Disclosure Service and gives a Disclosure Reference Number followed by a window of 90 days to submit, extendable in complex cases.

The practical trap is one of order of operations, and it is not addressed anywhere in the mainstream US guidance. Your US tax for each of the three streamlined years is computed after foreign tax credit relief for UK tax on the same income. If you post the US package first and then correct the UK position afterwards, the UK tax attaching to those years changes, the credit changes, and the US figures you certified are no longer right. You are then back at the amended-submission procedure described above. Where both sides need correcting, settle the UK position first, or at minimum fix the UK numbers with enough certainty that the credit can be computed correctly, and only then finalise the streamlined package.

Two further UK-specific points recur. The UK tax year ending 5 April and the US calendar year never align, so credits have to be traced to the correct US year rather than lifted straight from a Self Assessment return. And GOV.UK notes that the treatment of foreign income for individuals whose permanent home was abroad changed from 6 April 2025, so the UK position across a six-year lookback window is not uniform and each year has to be considered on its own terms.

A worked scenario: a London-based filer with a substantial UK balance sheet

Consider a US citizen who moved to London eleven years ago and now works in a senior banking role. She has filed UK Self Assessment returns throughout, paid UK tax on everything, and filed nothing in the United States since the year she left. Her position comprises clearing bank accounts, a private bank relationship holding roughly 2.6 million pounds, a stocks and shares ISA and a general investment account holding UK-domiciled funds worth around 900,000 pounds, deferred share awards, and a 30 percent shareholding in a UK consultancy company she co-founded. She visits the United States two or three times a year and stays in hotels; she sold her US apartment nine years ago.

Stage 1 produces an account register of eleven reportable accounts across six years, three of them closed during a platform migration and requiring reconstruction from annual tax vouchers and a mortgage application. Stage 2 is clean on both limbs: no US abode since the apartment was sold, and travel records evidencing more than 330 full days outside the United States in each candidate year. Stage 3 supports non-willfulness, since she was told on leaving that paying UK tax on UK income was sufficient and never asked again. Stage 5 brings Form 8938 into all three years, Form 5471 for the consultancy shareholding, and separate treatment of the fund holdings.

The outcome is instructive. Her US tax across the three years is a fraction of what she expected, because UK tax on her salary and bonus more than covers the US liability on that income and the residual arises almost entirely on the offshore fund holdings. Her penalty exposure is nil, because she qualifies for the foreign track. Had she kept the US apartment available to her, the abode limb would have failed, the domestic track would have applied, and a 5 percent penalty on a highest year-end aggregate approaching 3.5 million pounds would have dwarfed the entire tax bill. The most valuable work in her file was done in Stage 2, in a folder of travel records and a property completion statement.

What are the most expensive mistakes at each stage?

Filing more than three years of returns in the belief that more disclosure is safer, which creates inconsistencies without benefit
Reporting closing balances instead of maximum values on the FBARs, which understates the accounts and is easily detected on verification
Omitting accounts held only under signature authority, or accounts closed mid-period, on the assumption they no longer count
Failing to select Other and enter Streamlined Filing Compliance Procedures in the FBAR explanation box, leaving the electronic filings unconnected to the package
Omitting the red Streamlined Foreign Offshore annotation, which risks the returns being processed as ordinary late filings
Writing a Form 14653 narrative that argues a conclusion instead of stating facts, or that quietly omits an unfavourable fact
Sending the package to a general IRS address rather than the dedicated Austin address, or attempting to file it electronically
Correcting the UK position after the US package has been posted, which invalidates the foreign tax credit figures certified in it
Treating IRS silence as a reason to stop filing FBARs and returns in the years that follow

What should you do in the twelve months after filing?

Treat the submission as the start of a compliance record rather than the end of a problem. File the current year on time through the normal channels, because the IRS is explicit that the Austin address is for the streamlined package only and all future filings follow regular procedures. File the current FBAR by its normal deadline. Order your IRS account transcripts once enough time has passed for processing and confirm that all three years appear. Keep the package, the proof of delivery, the payment record and the six FBAR confirmation numbers together in a file you can produce years later.

Then close the gaps that made the original failure possible: put a repeatable annual process around the account register you built at Stage 1, review investment holdings for structures that generate disproportionate US reporting relative to the return they deliver, and coordinate the UK and US filing calendars so that credits are computed once and used consistently. The value in going through the Streamlined Foreign Offshore Procedures properly is not only the penalty relief, but the clean baseline from which every subsequent year can be filed without argument.

This guide is the complete walkthrough. The narrower questions it touches on, including the abode test, the 330-day arithmetic, the position of green card holders, the contents of the submission pack and how to amend a filing that has already gone in, are dealt with in depth in the separate guides in this section. The sequence above exists precisely so that no stage is attempted before the stage that governs it has been settled.