Can I still qualify if I visited the United States during the year?

Yes, provided your visits were short enough. The test requires at least 330 full days physically outside the United States in a qualifying year, which leaves a budget of roughly 35 days that can touch the United States. Remember that arrival and departure days are not full days outside, so every trip costs at least two days beyond the days you actually spend there.

Is the 330-day test measured over any 12-month period?

No. The streamlined non-residency test is applied tax year by tax year within the three-year lookback, unlike the foreign earned income exclusion's physical presence test, which can use any rolling 12-month period. You need at least 330 full days outside the United States within a single one of the three most recent tax years for which the return due date has passed.

Do both spouses have to pass the non-residency test for a joint submission?

Yes. The IRS states that for joint return filers, both spouses must meet the applicable non-residency requirement. Each spouse is measured under the test matching their own status — the abode-plus-330-day test for citizens and green card holders, or the substantial presence test for others. If one spouse fails, the structure of the submission needs careful preparation-stage analysis.

Does keeping a home in the United States mean I have a US abode?

Not automatically. The IRS states that temporary presence in the United States, or maintenance of a dwelling there, does not necessarily mean your abode is in the United States. Abode takes its meaning from IRC section 911 and its regulations and turns on where your domestic, economic and family life is genuinely centred, which for most of our clients is firmly in the UK.

Which three years count, and do all three need to qualify?

The lookback covers the three most recent tax years for which the US return due date, or a properly applied-for extended due date, has passed. Only one of those years needs to satisfy both the abode prong and the 330-day prong. The returns for all three years are still filed as part of the streamlined package, together with six years of FBARs.

What happens if I fail the non-residency test?

Non-willful taxpayers who fail the test are directed to the Streamlined Domestic Offshore Procedures, which impose a 5 percent miscellaneous offshore penalty on the highest aggregate year-end balance of your foreign financial assets. Additionally, SDOP is only open to taxpayers who previously filed returns for the three lookback years, so complete non-filers who fail the test must consider other IRS routes, which makes a careful year-by-year day-count analysis essential first.

Streamlined Foreign Offshore Procedures Eligibility Test

Streamlined foreign offshore procedures eligibility rests on two pillars: your past failures must have been non-willful, and you must pass the IRS non-residency test in at least one of the three most recent tax years for which the US return due date has passed. Pass both, and you can catch up on missed US tax returns and FBARs with the failure-to-file, failure-to-pay, accuracy-related, information return and FBAR penalties all waived. The IRS confirms this penalty relief on its page U.S. Taxpayers Residing Outside the United States at irs.gov. Fail the non-residency test, however, and you are pushed towards the domestic version of the programme, which carries a 5 percent offshore penalty and an entry condition many non-filers cannot meet.

This guide is the complete reference for the non-residency test itself. It covers both prongs of the test for US citizens and green card holders, the separate substantial-presence-style test for everyone else, the three-year lookback, the joint filer rules, how day counting actually works, and how the test feeds into the Form 14653 certification. It is written for wealthy UK-based Americans — dual nationals, London executives, long-term green card holders — who have discovered years of unfiled US returns and FBARs and need a precise answer to one question: do I qualify?

What Is the Streamlined Foreign Offshore Procedures Eligibility Test?

The Streamlined Foreign Offshore Procedures (SFOP) are the IRS route that lets non-resident, non-willful taxpayers become compliant by filing three years of tax returns and six years of FBARs with no late-filing, accuracy-related, information return or FBAR penalties. The non-residency test is the gatekeeper: it is the requirement that separates the foreign procedures, with their zero-penalty outcome, from the Streamlined Domestic Offshore Procedures and their 5 percent penalty.

The authoritative source is IRS.gov, on the page titled U.S. Taxpayers Residing Outside the United States (irs.gov/individuals/international-taxpayers/us-taxpayers-residing-outside-the-united-states). That page sets out two different non-residency tests, and the one that applies depends on your status. US citizens and lawful permanent residents — green card holders — face the abode-plus-330-day test. Individuals who are neither citizens nor green card holders face a test built on the substantial presence test of IRC section 7701(b)(3). Both versions are applied over the same three-year lookback window.

How Does the Non-Residency Test Work for US Citizens and Green Card Holders?

For US citizens and green card holders, the non-residency test has two prongs, and you must satisfy both prongs in the same tax year. The IRS wording requires that, in any one or more of the most recent three years for which the US tax return due date (or properly applied-for extended due date) has passed, you did not have an abode in the United States and you were physically outside the United States for at least 330 full days.

Prong one — the abode test: you did not have an abode in the United States during the qualifying year. Abode takes its meaning from IRC section 911 and its regulations and looks at where your domestic life is genuinely anchored.
Prong two — the 330-day test: you were physically outside the United States for at least 330 full days during that same year.
The year rule: you only need to pass both prongs together in one of the three most recent tax years for which the return due date, including any properly applied-for extension, has passed.

The abode prong trips up fewer London-based clients than the day count, but it matters for anyone keeping strong US ties. Importantly, the IRS states that temporary presence in the United States, or maintenance of a dwelling there, does not necessarily mean your abode is in the United States. Consequently, owning a Manhattan apartment does not automatically fail you; the question is where your economic, family and personal life is centred. In our experience preparing streamlined submissions for UK-resident clients, an established London home, UK employment and family in the UK typically anchor the abode firmly outside the United States.

How Do You Count the 330 Full Days?

A full day is a period of 24 consecutive hours beginning and ending at midnight. The 330-day prong of the streamlined test is applied to each tax year on its own: you look at a single year within the three-year lookback and ask whether at least 330 full days of that year were spent physically outside the United States. This is stricter in one sense than the foreign earned income exclusion, whose physical presence test allows any rolling 12-month period; the streamlined wording anchors the count to the tax year itself.

Travel days are where day counts go wrong. The day you land in the United States is not a full day outside it, and neither is the day you depart, because you were on US soil for part of each. Under the parallel section 911 rules, which IRS.gov explains on its physical presence test page, a qualifying day must be a complete midnight-to-midnight period. Note one textual difference: the section 911 test counts full days present in a foreign country, and time over international waters does not count towards it, whereas the streamlined wording asks whether you were physically outside the United States. A transatlantic day spent partly over the ocean is still a day spent outside the United States on the streamlined wording.

Additionally, the arithmetic gives you a hard budget. A standard year has 365 days, so reaching 330 full days outside the United States leaves at most 35 days that touch the United States in any way — and every arrival day and every departure day spends part of that budget. Frequent business travellers burn through 35 days far faster than they expect, which is why we reconstruct counts from travel records rather than memory.

A Worked Example: A London Managing Director with US Travel

Consider an illustrative scenario. Elena is a dual US-UK national and a managing director at a London investment firm. Her home, family and employment are all in London, so she has no US abode. During 2023 she made four US trips. In March she flew to New York on the 3rd and landed back in London on the 9th: the 3rd through the 8th are not full days outside the United States, costing six days. A June conference cost eight days, a September investor roadshow cost nine, and a Thanksgiving family visit cost eight more.

Her 2023 total is therefore 31 days touching the United States, leaving 334 full days outside it. Since 334 exceeds 330 and her abode was in London, Elena passes the non-residency test for 2023. In 2024, by contrast, a three-week New York secondment pushed her US-touching days to 52, leaving only 313 full days outside — a failed year. Nevertheless, Elena still qualifies for the streamlined foreign offshore procedures, because eligibility only requires one qualifying year among the three most recent. One clean year is enough; the other two years are irrelevant to the test, although returns for all three are still filed. This scenario is illustrative only — your own position must be built from your actual travel records.

Which Test Applies If You Are Not a US Citizen or Green Card Holder?

Individuals who are not US citizens and not lawful permanent residents face a different non-residency test. Such a person is eligible if, in any one or more of the last three years for which the US tax return due date (or properly applied-for extended due date) has passed, they did not meet the substantial presence test of IRC section 7701(b)(3). This route matters for, among others, former US residents who left years ago and non-citizen spouses with historic US filing obligations.

Under the substantial presence test, as set out on IRS.gov's Substantial Presence Test page, you are treated as a US resident for a year if you were present in the United States on at least 31 days during that year and 183 days under a weighted three-year formula. To fail the substantial presence test — which is what streamlined eligibility requires here — you must fall below one of those thresholds.

The weighted formula counts all days of US presence in the current year, one third of the days in the first preceding year, and one sixth of the days in the second preceding year.
Presence counting is unforgiving: you are treated as present in the United States on any day you are physically there at any time during the day, so even a brief same-day visit counts as a full US day.
Certain days are excluded, including days in transit through the United States for under 24 hours between two foreign points, days as a crew member of a foreign vessel, days you could not leave because of a medical condition that arose in the United States, and days as an exempt individual such as certain students, teachers and foreign government personnel.

Notably, the two tests point in opposite directions. The 330-day test rewards absence and counts only full days outside the United States, whereas the substantial presence test measures presence and counts partial days inside it.

What Are the Rules for Joint Filers?

For joint return filers, both spouses must meet the applicable non-residency requirement. IRS.gov states this directly, and the word applicable is doing real work: each spouse is measured against the test that matches their own status. A US citizen married to a UK citizen who holds a green card would see both spouses tested under the abode-plus-330-day rule. However, a US citizen married to a UK citizen who has never held a green card would see one spouse tested on abode and days and the other on substantial presence.

Consequently, one travel-heavy spouse can block a joint streamlined submission even where the other spouse plainly qualifies. Where that happens, the filing structure itself becomes part of the compliance work — for example, whether the streamlined-year returns are prepared jointly or separately. Those are preparation decisions we work through file by file, because the right structure depends on each spouse's status, day counts and income position.

How Does the Non-Residency Test Interact with Form 14653?

Form 14653 is the Certification by U.S. Person Residing Outside of the United States, and every SFOP submission must include it. On it you certify, under penalties of perjury, that you meet the streamlined foreign offshore eligibility requirements — including the non-residency test — and you set out the narrative explaining why your failures were non-willful. Non-willful conduct is 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. That is the IRS's own definition, and the certification stands or falls on it.

The non-residency test therefore never lives in isolation. The day counts you rely on should be capable of substantiation from passport stamps, airline records and calendars, because the IRS warns that streamlined submissions may still be examined and, where the facts do not hold up, additional civil penalties and even criminal liability can follow. Furthermore, a certification that misstates residency facts undermines the credibility of the non-willfulness narrative sitting beside it on the same form. Precision in the day count protects the entire submission.

What Happens If You Fail the Non-Residency Test?

Failing the non-residency test does not end your compliance options; it changes them. Taxpayers who fail the test but are otherwise non-willful are directed to the Streamlined Domestic Offshore Procedures (SDOP), described on IRS.gov's page U.S. Taxpayers Residing in the United States. SDOP requires Form 14654 and imposes a Title 26 miscellaneous offshore penalty equal to 5 percent of the highest aggregate balance or value of your foreign financial assets, measured by aggregating year-end balances and values across the covered tax return and FBAR periods and selecting the highest year. For a wealthy household with substantial UK accounts and investments, 5 percent of the peak aggregate value is a material sum — which is exactly why the non-residency test deserves a rigorous, evidence-based analysis before anyone concedes it.

There is a second, less-discussed difference. SDOP is only open to taxpayers who have previously filed US tax returns for each of the three most recent years. A complete non-filer who fails the non-residency test therefore cannot simply switch to SDOP. Depending on the facts, other routes exist — the delinquent FBAR submission procedures, the delinquent international information return procedures, or the IRS voluntary disclosure practice where willfulness is a concern — but the analysis becomes considerably more delicate. This is one more reason to test all three lookback years carefully before concluding that no qualifying year exists.

Which Other Conditions Sit Alongside the Non-Residency Test?

Non-residency is necessary but not sufficient. The streamlined procedures, as described on IRS.gov's Streamlined Filing Compliance Procedures page, are available only to individual taxpayers, and several further conditions apply. You need a valid taxpayer identification number — for most people a Social Security number, although a taxpayer who is ineligible for an SSN may submit with a complete ITIN application. Moreover, the procedures close if the IRS has already initiated a civil examination of your returns for any year, whatever the subject matter, or if you are under criminal investigation.

The submission package itself is fixed. You file delinquent or amended returns for the three most recent years for which the due date has passed, FBARs for each of the six most recent years for which the FBAR due date has passed, any required international information returns, and the signed Form 14653. In return, a qualifying filer is not subject to failure-to-file, failure-to-pay, accuracy-related, information return or FBAR penalties — the full penalty shield that makes SFOP the most favourable catch-up route the IRS offers.

How We Help UK-Based Americans Through the Streamlined Test

US-UK Tax is a preparation and compliance practice, and streamlined submissions for UK-resident Americans are core work for our team. We build the non-residency analysis from the ground up: reconstructing day counts for each of the three lookback years from travel records, testing the abode position against the facts of your London life, and identifying which year — if any — clears both prongs. We then prepare the full package: three years of US returns reflecting UK income, six years of FBARs covering UK bank and investment accounts, the required information returns, and a Form 14653 supported by a carefully documented non-willfulness statement.

The non-residency test decides whether your route back to US compliance costs nothing in penalties or 5 percent of your peak offshore balances. It rewards precise, year-by-year work: one qualifying year among three is enough, and the difference between 329 and 330 full days is the difference between the two programmes. If you are a UK-based American with unfiled returns or FBARs, have your eligibility tested properly before you file anything. Contact our team for a confidential eligibility review and a fixed-scope preparation plan.