Do I need to file Form 8840 as a Canadian snowbird?

If you meet the substantial presence test and want the closer connection exception, Form 8840 is the statement you file. The exception requires fewer than 183 days in the current year alone, a foreign tax home for the whole year, and is unavailable if you hold or applied for a green card at any point in the year. No amount of Canadian ties overrides any of that.

What does the closer connection exception actually require?

Three conditions, two immigration bars, one deadline, and a treaty route none of them close. Reg 301.7701(b)-2(a) wants fewer than 183 current-year US days, a foreign tax home all year, and a closer connection to that country than to the US. A green card, or applying for one or an application pending in the year, ends the claim. Filing late costs it too, under Reg 301.7701(b)-8(d)(1), unless you show by clear and convincing evidence reasonable actions to become aware and significant affirmative steps to comply. That regulation routes a treaty-country resident to the dual-resident rules.

“An alien individual who meets the substantial presence test may nevertheless be considered a nonresident alien for the current year if the following conditions are satisfied, (1) The individual is present in the United States for fewer than 183 days in the current year; (2) The individual maintains a tax home in a foreign country during the current year; and (3) Except as provided in paragraph (e) of this section, the individual has a closer connection during the current year to a single foreign country in which he or she maintains a tax home than to the United States” Treas. Reg. 301.7701(b)-2(a)

The statute states the same test in two limbs, and its own heading tells you the first condition before you read the text.

“Exception where individual is present in the United States during less than one-half of current year and closer connection to foreign country is established. An individual shall not be treated as meeting the substantial presence test of this paragraph with respect to any current year if, (i) such individual is present in the United States on fewer than 183 days during the current year, and (ii) it is established that for the current year such individual has a tax home … in a foreign country and has a closer connection to such foreign country than to the United States” IRC 7701(b)(3)(B)

Note the word “and” between the two limbs. This is not a weighing exercise where strong Canadian ties compensate for a long stay. Limb (i) is a gate, and it either opens or it doesn’t.

The tax home condition carries a duration the statute leaves implicit, and it is not simply where you live. Statute and regulation both land on the section 162(a)(2) meaning, and the regulation is the one that spells it out: your regular or principal place of business, or, where you have no regular or principal place of business either because of the nature of the business or because you are not carrying on any trade or business at all, your regular place of abode in a real and substantial sense. That second branch is the one that reaches a retiree, so having no business does not leave you without a tax home. The statute gets there through section 911(d)(3) and switches off that provision’s second sentence, so the rule denying a foreign tax home to anyone whose abode is in the US is not part of this test. The tax home also has to hold for the whole year, and it has to sit in the country you are claiming.

“Duration and nature of tax home. The tax home maintained by the alien individual must be in existence for the entire current year. The tax home must be located in the same foreign country for which the individual is claiming to have the closer connection described in paragraph (d) of this section.” Treas. Reg. 301.7701(b)-2(c)(2)

So a mid-year change on the Canadian side, selling the home, or closing the business you ran from it, puts the entire-year requirement in play instead of leaving it as an assumption. The regulation does allow a closer connection to two foreign countries in a single year, on five stated conditions, and this page does not work that rule through.

One more condition sits outside that list and it is a date. File the statement late and the exception goes with it, and every US day goes back into the substantial presence count.

“Penalty for failure to file statement. General rule. If an individual is required to file a statement pursuant to paragraph (a)(1), (a)(2)(ii), (a)(2)(iii) or (a)(3) of this section and fails to file such statement on or before the date prescribed by paragraph (c) of this section, the individual will not be eligible for the closer connection exception described in 301.7701(b)-2 and will be required to include all days of presence in the United States (calculated without the benefit of 301.7701(b)-3(b)(5), 301.7701(b)-3(c), and 301.7701(b)-4(c)(1)) for purposes of the substantial presence test and for determining the individual’s residency starting and termination dates. If an individual is considered to be a resident because of this paragraph and the individual is also a resident of a country with which the United States has an income tax convention pursuant to that convention, the individual shall be treated in the manner provided in 301.7701(b)-7(a) (relating to the treatment of individuals who are dual residents).” Treas. Reg. 301.7701(b)-8(d)(1)

The Form 8840 instructions state the same rule and print the way out in the same breath. Paragraph (d)(2) spares someone who can show by clear and convincing evidence that they took reasonable actions to become aware of the filing requirements and significant affirmative steps to comply, which is a real standard rather than a formality. Paragraph (e) adds a second route that does not run on the filer’s diligence at all: the Secretary or a delegate may, in their sole discretion and where it is in the best interest of the government, disregard the failure to file on time when determining the individual’s days of presence in the United States. That one is discretionary and nothing to plan around, and it is narrower than (d)(2) as well: it reaches the day count rather than the eligibility itself. Paragraph (d)(1)‘s own closing sentence does something different again. If the late filing makes you a US resident and you are also a resident of a treaty country, you get handled under Reg 301.7701(b)-7(a), the dual-resident rules. That is the treaty tie-breaker rather than a third route out of the penalty, and it is not free, because paragraph (a)(3) of that same regulation says a person who wins it is still generally treated as a US resident for Code purposes other than computing US income tax. The deadline itself belongs to the corridor page linked below.

Can anything disqualify me even if I’m under 183 days?

Yes, and it has nothing to do with your ties. Two immigration facts end the closer connection claim on their own, and neither is the day count. The statute removes the exception for any year in which an adjustment-of-status application was pending, or you took other steps toward permanent residence, so one filed in March and withdrawn in April still costs that year. The IRS adds the one the statute leaves out: holding a green card. A bar closes this form. The residency question stays live: the IRS says someone ineligible may still qualify for nonresident status by reason of a treaty.

“Subparagraph (B) not to apply in certain cases. Subparagraph (B) shall not apply to any individual with respect to any current year if at any time during such year, (i) such individual had an application for adjustment of status pending, or (ii) such individual took other steps to apply for status as a lawful permanent resident of the United States” IRC 7701(b)(3)(C)

The regulation states the same bar and then names six filings that count as affirmative steps, on a list it says is not exhaustive: Forms I-508, I-485, I-130, I-140, ETA-750 and OF-230. Three of the six are described in the regulation as filed on behalf of the alien rather than by the alien, so a relative’s I-130 petition can close this form’s door on a year you thought was clean.

The IRS states all three bars in the instructions to the form, and that is where the green card holder appears. It also prints the way out in the same Note.

“You are not eligible for the closer connection exception if any of the following apply. … You are a lawful permanent resident of the United States (that is, you are a green card holder). … You have applied for, or taken other affirmative steps to apply for, a green card; or have an application pending to change your status to that of a lawful permanent resident of the United States. … Even if you are not eligible for the closer connection exception, you may qualify for nonresident status by reason of a treaty. See the instructions for line 6 for more details.” 2025 Instructions for Form 8840

That last sentence sits under all three bars rather than under one of them, so it is offered to the green card holder and the applicant as much as to the person over 183 days. The instructions say it a second time under Line 6, which is the form’s own question about applying for permanent residence: check yes there and you do not file Form 8840 at all, but “you may qualify for nonresident status by reason of a treaty”, and the instructions send you to a Form 8833 filed with a Form 1040-NR. Both statements are permissive rather than promises, and the treaty’s own conditions are not this page’s subject.

Which 183 days matter?

The current year’s, counted plainly, and that is the exception’s number. The substantial presence test produces its own 183 figure and gets there a completely different way. It also has two limbs rather than one: at least 31 days of presence in the current year, and a weighted sum that adds the current year’s countable days, a third of the prior year’s and a sixth of the year before that, reaching 183 or more. Both limbs have to be met before the test bites. Countable matters, because IRC 7701(b)(3)(D) takes whole categories of day out of the count.

“Except as otherwise provided in this paragraph, an individual meets the substantial presence test of this paragraph with respect to any calendar year … if, (i) such individual was present in the United States on at least 31 days during the calendar year, and (ii) the sum of the number of days on which such individual was present in the United States during the current year and the 2 preceding calendar years (when multiplied by the applicable multiplier determined under the following table) equals or exceeds 183 days” IRC 7701(b)(3)(A), the substantial presence test itself

So a snowbird who spends five months in Florida every year for three years trips the weighted formula while staying well under 183 actual days in any single year. On a steady yearly pattern the weighted sum comes to one and a half times the annual figure, so the line sits at 122 days. That person is exactly who the exception is written for. Someone who spends seven months in one year is not, whatever their ties look like.

The statute’s opening words in that quote are load-bearing. “Except as otherwise provided in this paragraph” points at IRC 7701(b)(3)(D), which takes exempt individuals, and days you were unable to leave because of a medical condition that arose while you were in the US, out of the count altogether. The Form 8840 instructions list six categories of day that do not count, opening with days you regularly commuted to work in the United States from a residence in Canada or Mexico. Most snowbirds are in none of them and count every day, and the corridor page linked below owns the exclusions and the paperwork some of them require.

What does the IRS look at to decide “closer connection”?

A named list of contacts, and it’s broader than most people expect. The regulation asks whether you’ve maintained more significant contacts with the foreign country than with the US, and then enumerates the facts to consider. The list is expressly not exhaustive.

“In determining whether an individual has maintained more significant contacts with a foreign country than the United States, the facts and circumstances to be considered include, but are not limited to, the following” Treas. Reg. 301.7701(b)-2(d)(1)

The regulation looks at the location of	Why it catches people
Your permanent home	A US property you use seasonally still counts as a location
Your family	Family who moved with you cuts the other way
Personal belongings, including cars and furniture	Cars registered and garaged in the US
Social, political, cultural or religious organisations you have a current relationship with	Club and congregation memberships in the US
Routine personal banking	A US chequing account used for everyday spending
Business activities other than your tax home	Side activity conducted from the US
The jurisdiction issuing your driver’s licence	A Florida licence is a visible, dated contact
The jurisdiction where you vote	Form 8840 asks where you were registered to vote
The country of residence you designate on forms	Anything you have already signed
The types of official forms you file	The regulation names Form 1078, Form W-8 and Form W-9

The last two rows are the ones worth acting on early. Documents you have already signed are evidence, and they’re the hardest to walk back later.

Does the exception help if I’ve already crossed 183 days?

No, and this is the point at which the analysis has to move somewhere else. Once you’re at 183 days or more in the current year, limb (i) fails and the closer connection exception is unavailable no matter how the factor list would have come out. The treaty tie-breaker is a different mechanism with different rules, and this page points at it rather than working it through.

• How the day count actually works for a snowbird, which owns the counting and the decision
• The substantial presence test formula, the weighted three-year calculation that triggers the need for Form 8840
• The closer connection exception in detail, the 20 factors the IRS evaluates and when the exception fails
• Whether you’re still a Canadian tax resident
• When a treaty position has to be disclosed on Form 8833
• Streamlined filing for Canadian snowbirds, if you crossed the line, never filed, and need the catch-up package

Worth being precise about what this page does and does not settle. It covers the three conditions the regulation lists, the two immigration bars, the rule that a late statement costs you the exception together with the two narrow routes back out of it, and the factor list, for the ordinary case of one foreign country. It also names the treaty route that outlives the exception, which is a different mechanism rather than a third route out. It does not cover the two-country special rule, the filing deadline and mechanics for Form 8840 itself, the day-count exclusions beyond naming them, or the treaty tie-breaker’s own conditions and cost. The first sits in a regulation this page has not worked through, and the rest belong to the corridor page linked above.

What should I do next?

Start with three facts rather than one. First, whether you hold a green card or have anything pending toward one this year, because either answer closes the exception before the day count matters. Second, your actual days in the US for the year, on their own: at or over 183 and the exception is out. Third, where your tax home sat in every month of the year, because a foreign tax home for the whole year is condition two of three and a mid-year move breaks it. Clear all three, work the factor list, file on time. Fail any, or file late, and the treaty is where the question goes next.

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.