Form 8840: the closer connection exception, explained

Form 8840 is a one-page statement with an outsized consequence. It is the document by which an alien individual who has technically become a United States tax resident says, in the manner the regulations require, that they are not really — that their tax home and their life are somewhere else.

It exists because the Substantial Presence Test is deliberately blunt. The test counts every part-day of presence and weights the two preceding years, so a pattern of long but not excessive winters reaches the threshold long before anyone feels like a United States resident. The closer connection exception is the statutory relief; Form 8840 is the only way to claim it.

Who this is for

The classic filer is the Canadian snowbird. Fly south each November, return each April, repeat, and the weighted arithmetic does the rest: current-year days count in full, the prior year at a third, the year before at a sixth, against a weighted threshold of 183 days and a current-year floor of 31 days. A winter that feels identical to the last three is the one that trips it.

But the form is not Canadian. It is filed by anyone who is neither a United States citizen nor a green card holder, meets the Substantial Presence Test, and has a genuine tax home abroad — consultants on rotation, executives with long United States project commitments, people with family on both sides of a border. Each individual files their own; there is no joint version, so spouses file separately even if their travel was identical.

The three conditions

The exception in IRC §7701(b)(3)(B) has three limbs, and all of them must hold for the same calendar year.

You were present in the United States on fewer than 183 days during the current year. Note the asymmetry: the Substantial Presence Test uses a weighted three-year total, while this condition looks only at the current year, unweighted. That gap is precisely the space the exception occupies. Cross that many actual days in the year itself and the door closes, no matter how strong the rest of your case.

You maintained a tax home in a foreign country during the year. Tax home means your regular or principal place of business, or, if you have none, your regular place of abode. It must have been in place for the whole year, not established partway through it.

You had a closer connection to that foreign country than to the United States. This is the qualitative limb, assessed on the factors in Treas. Reg. §301.7701(b)-2(d): the location of your permanent home, of your family, of your personal belongings and vehicles, of the social, political, cultural and religious organisations you belong to, of your bank accounts, the jurisdiction that issued your driving licence, where you are registered to vote, the country you name as residence on official forms, and the country whose tax return you file as a resident.

A limited variant permits a closer connection to two foreign countries in a year in which you moved between them, subject to conditions in the regulation. It is narrow, and it is not the default.

When the exception is not available

Three situations rule it out, and each is absolute.

Presence at or above the current-year limit. The first condition is a bright line, not a factor to be weighed.

Any move toward permanent residence. If you have applied for lawful permanent resident status, or have taken affirmative steps toward it, the exception is gone. The regulation and the form’s instructions treat a filed Form I-485, I-130, I-140 or I-508, or an approved application for a labour certification, as such a step. The logic is consistent: you cannot ask one arm of the government to recognise you as settled and another to accept that you are not.

Existing green card status. Lawful permanent residents are residents by status rather than by day count, so no presence-based exception reaches them. Their route, where one exists, is a treaty residence tie-breaker, not this form.

The deadline, and why it is the whole point

Form 8840 is filed by the due date for a Form 1040-NR for the year, with extensions. Where you had wages subject to United States withholding that is the ordinary April date; where you did not, which describes most snowbirds, it is the June date. If you have no other United States filing obligation, the form is posted on its own to the address in the instructions.

The consequence of missing it is set out in Treas. Reg. §301.7701(b)-8(d), and it is unusually stern. A taxpayer who does not file the statement on time is not eligible for the closer connection exception at all — the substance of the claim is not reached. The regulation preserves a narrow escape only for someone who can establish that they took reasonable actions to become aware of the requirement and significant affirmative steps to comply with it. That is a higher bar than ordinary reasonable cause, and it is not met by having been unaware.

What follows from losing the exception is not a penalty but a status. You are a United States resident for the whole year, taxable on worldwide income — Canadian employment, pensions, rental profits, investment income — with the information returns that residence carries: the FBAR, Form 8938, and reporting on foreign trusts, corporations and, for Canadians, TFSAs and RESPs. The compliance cost typically exceeds the tax.

Form 8840 and the treaty tie-breaker

They are different instruments and they are often confused. Form 8840 claims a statutory exception that stops you becoming a resident. The residence article of an income tax treaty — Article IV of the Canada-United States convention, for instance — resolves a case where you are a resident of both countries under domestic law, and is claimed by filing Form 1040-NR with Form 8833.

The treaty route is available when the exception is not, including where you crossed the current-year limit. It is also a heavier claim: it requires a return, and it does not relieve you of United States information reporting, which continues to apply to a treaty-tie-broken resident. File Form 8840 where you can, and treat the treaty as the fallback rather than the plan.

What Residay tracks for this

The exception is won or lost on a count of actual days in the United States in a single calendar year, held against a test that counts three.

Residay maintains both counts side by side: the weighted Substantial Presence total that tells you whether you need the exception at all, and the plain current-year United States day count that tells you whether you still qualify for it. It applies the part-day convention that both use, so an afternoon border crossing is recorded as the full day the statute treats it as. It warns as the current-year figure approaches the limit while the winter can still be shortened, rather than after the return is due. And it keeps the dated entry and exit record — the thing an examiner compares against a passport — on your device, exportable for the preparer who signs the form.

Planning notes

• Count the current year separately from the weighted test. They answer different questions, and the one that decides your eligibility is the simpler of the two.
• Decide before April, not after. The form’s value is entirely in being timely, and the relief for a late one is deliberately hard to reach.
• If a green card application is anywhere in your plans, model the year in which it is filed. It ends the exception in that year, not in the year the card arrives.
• Keep the artefacts of the foreign connection current — the provincial health cover, the driving licence, the resident tax return at home. The day count is only the first of the three conditions.