The duration of status rule was due to end open-ended admission for Canadians studying, training and teaching in the United States on 15 September 2026. It did not. On 14 September, one day before the effective date, a federal judge in Massachusetts postponed the rule nationwide, and the Department of Homeland Security has appealed. For now, duration of status remains in place. Most coverage has treated all of this as an immigration story. It is also a tax story — and the tax part does not wait for the appeal, because the clock that decides whether a Canadian in the United States is a US tax resident never ran on the immigration calendar in the first place.
What would the duration of status rule have changed?
The instrument is a DHS final rule, Establishing a Fixed Time Period of Admission and an Extension of Stay Procedure for Nonimmigrant Academic Students, Exchange Visitors, and Representatives of Foreign Information Media, published in the Federal Register on 17 July 2026 (document 2026-14439, RIN 1653-AA95), with an effective date of 15 September 2026.
Today, F academic students, J exchange visitors and I foreign media representatives are admitted for duration of status — they may remain as long as they keep complying with their programme, with no end date on the admission itself. The rule would replace that with a fixed period: for F and J nonimmigrants, the length of the programme capped at four years, plus a 30-day grace period; for I nonimmigrants, up to 240 days, with exceptions. Anyone needing more time would have to apply to US Citizenship and Immigration Services for an extension of stay, or leave and be readmitted. The rule also set out transition arrangements for people already in the country under duration of status.
Is duration of status still in effect?
Yes, for now. On 14 September 2026 Judge F. Dennis Saylor IV of the US District Court for the District of Massachusetts granted nationwide relief postponing the rule pending the outcome of a challenge brought by a coalition of education organisations and unions, who argue it was adopted in breach of the Administrative Procedure Act. DHS has appealed to the US Court of Appeals for the First Circuit.
That leaves two live outcomes. If the order stands, duration of status continues. If the First Circuit sides with DHS — including on an interim basis while the appeal runs — fixed admission periods could take effect at short notice. Anyone whose plans depend on which happens should be getting that answer from a licensed immigration attorney, not from a tax article. What we can say is that the tax analysis below is the same either way.
Why does an immigration rule matter to a tax return?
Because US tax residence for a non-citizen is decided mainly by counting days, not by visa category. The substantial presence test treats a person as a US resident for tax purposes if they are present at least 31 days in the current year and 183 days on a weighted count — all the days this year, a third of last year’s, and a sixth of the year before that.
Students and trainees have historically been insulated from that arithmetic by the exempt individual rules. The IRS is explicit that the term does not mean exempt from US tax; it means the days do not count. A student temporarily present on an F, J, M or Q visa who substantially complies with the visa terms, and a teacher or trainee on a J or Q visa who does the same, may exclude their days of presence.
That exclusion is not indefinite, and this is the part that matters. Under 26 U.S.C. §7701(b)(5), a student cannot be treated as an exempt individual after the fifth calendar year for which they were exempt, unless specific requirements are met. A teacher or trainee cannot be treated as exempt for the current year if they were an exempt person for any two calendar years in the preceding six — a limit the statute extends to four calendar years where all of the individual’s compensation falls within §872(b)(3). Those limits run whatever the court decides about admission periods.
What happens when the exempt years run out?
The days start counting, and they count fast. A Canadian who has been in the United States continuously on a student visa does not need a new trip to cross the substantial presence threshold — the same life, unchanged, produces a resident year the moment the exemption lapses.
US tax residence is not a small administrative change. It brings worldwide income into the US return and can switch on foreign account reporting: the FBAR at an aggregate US$10,000 across foreign accounts, and Form 8938 at its own thresholds. For a Canadian it also puts a TFSA and an RESP into a US filing position that Canadian tax treatment does nothing to relieve. None of that is triggered by the duration of status rule, and none of it is stopped by the court order. The fight over admission periods has simply put the immigration calendar in the headlines — which is a good moment to check the tax calendar that sits underneath it.
What should a Canadian student or trainee be filing?
The exclusion of days is not automatic in the sense of requiring nothing. An exempt individual claims it on Form 8843, Statement for Exempt Individuals and Individuals with a Medical Condition, which the IRS describes as the way an alien individual explains the basis of a claim to exclude days from the substantial presence test. It is filed with the income tax return where there is one.
Where the exempt years have run out, a different door may be open. The closer connection exception treats someone as a nonresident despite meeting the substantial presence test, but only where they were present fewer than 183 days in the year, maintained a tax home in a single foreign country, had a closer connection to it, and had no green card application pending. It is claimed on Form 8840, and the IRS warns that failing to file it on time forfeits the exception absent clear and convincing evidence of reasonable efforts to learn the requirement. A student in the United States for most of the year will usually fail the 183-day condition outright. This is a snowbird’s remedy, not a student’s.
Who does this reach?
Canadian students at US institutions are the obvious case. Canadian physicians doing a US residency or fellowship on a J-1 are the second, and their exposure is sharper, because the teacher-and-trainee limit runs on two calendar years out of six rather than five. The third is easy to miss: the cross-border family whose adult child has been in the United States for years on a student visa while the parents assumed nothing had changed at home.
What this means for cross-border clients
The practical work is counting, and it is cheaper before a filing season than during one. Establish which calendar years have already been claimed as exempt: the statutory limits run on years claimed, not on continuous presence. Keep the I-20 or DS-2019 and the admission record to hand, because if the First Circuit lets the rule take effect, the end date on the admission will matter quickly. And where the exempt years are nearly exhausted, put the Canadian side of the picture in front of the same adviser, because a US resident year reaches registered accounts and reporting obligations that a Canadian return handles as if nothing had happened.
Frequently asked questions
Is duration of status still in effect?
Yes, for now. A federal court in Massachusetts postponed the fixed-admission rule nationwide on 14 September 2026, the day before it was due to take effect, and DHS has appealed to the First Circuit. The position could change if the appeal succeeds, so check the current status with an immigration attorney before relying on it.
Does the duration of status rule change my US tax residence?
No. Even if it takes effect, it changes how long you are admitted for and what you must do to stay longer. US tax residence for a non-citizen is decided by the substantial presence test and the exempt individual rules, which the rule does not amend.
I am a Canadian student and my days have never counted. Will they start?
They start when you can no longer be treated as an exempt individual. For students that is after the fifth calendar year for which you were exempt, subject to the conditions in §7701(b)(5). Whether you have reached it depends on which years you have already claimed, which is a matter of record, not estimate — and it does not depend on the court case.
I am a Canadian physician on a J-1. Is my limit different?
Yes. The teacher and trainee limit is two calendar years in the preceding six, extended to four calendar years where all of your compensation is described in §872(b)(3). It is a tighter limit than the student one, and it is a common surprise.
Can I use the closer connection exception instead?
Only if you meet all of its conditions, and the first is fewer than 183 days of US presence in the year. Someone studying or training in the United States full time generally will not. It is claimed on Form 8840 and the IRS treats late filing strictly.
Where to get this looked at
Counting exempt years and reading an admission record against a tax calendar is the kind of work that is cheap to do early and expensive to do late. If you or your adult child is studying, training or teaching in the United States and nobody has yet checked which calendar years have been claimed, that is worth an hour. You can book an introductory meeting with us.
Related reading on this site: how long a Canadian can stay in the United States, our guide to temporary US visa categories, the paths from visa to citizenship, and for physicians, the complete financial guide for physicians moving to Canada. Our cross-border tax planning service page sets out how we work. Form references above are explained on our cross-border tax forms hub, including Form 8840.
Sources
- US Department of Homeland Security, Establishing a Fixed Time Period of Admission and an Extension of Stay Procedure for Nonimmigrant Academic Students, Exchange Visitors, and Representatives of Foreign Information Media, Federal Register, 17 July 2026 (scheduled effective date 15 September 2026).
- McGuireWoods, Effective Date Postponed for DHS Final Rule Altering F, J and I Nonimmigrant Visa Duration, September 2026 (US District Court for the District of Massachusetts, No. 1:26-cv-13799).
- Cozen O’Connor, Federal Court Blocks DHS Rule Ending “Duration of Status”, September 2026.
- Internal Revenue Service, Substantial Presence Test.
- 26 U.S.C. §7701(b)(5), Exempt individual defined.
- Internal Revenue Service, About Form 8843, Statement for Exempt Individuals and Individuals with a Medical Condition.
- Internal Revenue Service, Conditions for a Closer Connection to a Foreign Country.
This article is educational and is not financial, tax, legal or immigration advice. The status of the duration of status rule depends on ongoing litigation and may change after the date of publication; immigration status questions should be put to a licensed immigration attorney, and nothing here predicts how any rule will be applied to an individual. Figures and thresholds change; verify against the primary source before acting. 49th Parallel Wealth Management is a fee-only fiduciary registered as a Portfolio Manager in Canada and as a Registered Investment Advisor in the United States.
