F-1 Duration of Status: What Students Need to Know

· AUGUST 2026
· Priyanka Kotak

The End of "Duration of Status":
What F-1 Students Need to Know About DHS's New Rule

If you or a family member holds an F-1 student visa, the rules you’ve relied on for years are changing in a fundamental way. On July 17, 2026, the Department of Homeland Security published a final rule eliminating “Duration of Status” (D/S) for F-1 students, replacing it with a fixed period of admission. The rule takes effect September 15, 2026, and it will touch nearly every international student in the United States, from incoming freshmen to PhD candidates in year six of a doctoral program.

Here’s what’s actually changing, who it affects most, and what to do about it.

Out with “Duration of Status,” in with a hard expiration date

For decades, F-1 students were admitted for “Duration of Status,” meaning they could remain in the U.S. for as long as they were enrolled and making normal progress toward their degree, without a fixed expiration date stamped on their paperwork. That flexibility is gone.

Starting September 15, 2026, F-1 students will instead receive a specific “Admit Until Date” on their Form I-94, set to whichever is shorter: the end date on their Form I-20, or four years from their date of entry. Once that date arrives, the student’s authorized stay ends unless they’ve taken affirmative steps to extend it.

DHS has framed the change as a screening and accountability measure. As DHS Secretary Markwayne Mullin put it, “By implementing clear, finite limits on these visas, the United States is reclaiming its ability to properly screen, vet, and monitor individuals within our borders.”

The grace period is shrinking too

Under the old system, students who completed their program (or whose status otherwise ended) had 60 days to depart the country, transfer to a new program, or take other action. Under the new rule, that grace period is cut to 30 days. Students who miss the new, tighter window risk accruing unlawful presence, which can carry serious consequences for future visas and green card eligibility, explained in detail below.

Why a missed date is now a legal problem, not just a paperwork one

This is the part of the rule that deserves the most attention, because it changes the underlying legal exposure, not just the calendar.

Under the old D/S system, a student who fell out of compliance did not automatically start accruing “unlawful presence.” Unlawful presence only began once USCIS or an immigration judge made a formal finding that the student had violated their status. In practice, that meant a lot of room for error: a lapse could often be corrected without triggering the harshest immigration consequences, as long as it was fixed before a formal finding was made.

Under the new fixed-admission system, that cushion disappears. Unlawful presence now begins accruing automatically the day after a student’s Admit Until Date passes, with no finding or notice required, unless the student has timely filed for an extension, departed the country, or otherwise maintained status. There is one important protection: a student who files Form I-539 before the Admit Until Date expires is considered to be in a “period of authorized stay” while that application is pending, and does not accrue unlawful presence during that time, even if USCIS takes months to decide it. Timely filing, not eventual approval, is what protects the student.

Why this matters: under federal law (INA § 212(a)(9)(B)), a person who accrues more than 180 days of unlawful presence and then departs the United States can be barred from reentering for three years. A person who accrues one year or more of unlawful presence and departs can be barred for ten years. Overcoming either bar generally requires a waiver based on proving “extreme hardship” to a qualifying U.S. citizen or permanent resident relative, which is a high bar to clear and far from guaranteed.

How this could play out in practice

A doctoral candidate in year five of a PhD program doesn’t realize their Admit Until Date, set to a four-year limit from their entry, has already passed. They keep attending classes and doing research, assuming their DSO would have flagged a problem. Because no one is required to warn them anymore, unlawful presence starts accruing the day after that date, silently, while they keep working in the lab. If this continues past 180 days and the student later travels home for a family event, they could face a three-year bar on returning, even though nothing about their academic standing ever changed.
A student finishing a master’s program in October 2026 now has 30 days, not 60, to depart, transition to OPT, or change status. They plan a five-week trip home to see family before starting a new job, assuming the old 60-day cushion still applies. By day 31, they are already accruing unlawful presence, and the clock keeps running for the full length of the trip.
A student anticipating they’ll need more than four years files Form I-539 two weeks before their Admit Until Date expires, even though USCIS processing takes several months. Because the filing was timely, they remain in an authorized period of stay for the entire time the application is pending — no unlawful presence accrues, even if the case isn’t decided until well after their original date would have passed. This is the scenario the rule is designed to reward, and it’s the single most effective thing a student in this position can do.

The throughline in all three scenarios is the same: under the old system, an honest mistake had time to get corrected. Under the new system, the clock starts the moment the date on the I-94 passes, and by the time most students realize there’s a problem, the legal exposure has already begun.

Who this hit hardest

While every F-1 student is affected by the shift away from D/S, some groups face a much bigger practical burden:

PhD candidates and other students in multi-year programs. Doctoral study routinely runs past four years. Anyone in this position will need to file for an extension well before their four-year clock runs out.
Medical residents and others in extended training programs, for similar reasons.
Students who want to change majors, degree levels, or transfer to schools. The rule imposes new restrictions on these moves: undergraduates face substantial limits on transferring or changing majors during their first year (with exceptions only for “rare, exceptional events” such as natural disasters), and graduate students generally cannot change their educational objective at all.
J-1 exchange visitors, who are subject to a parallel set of changes under the same rule.

How to extend status under the new system

Previously, staying enrolled and making normal academic progress was enough; a Designated School Officer (DSO) at the university handled most of the paperwork internally. That’s no longer sufficient. Students who need more time than their Admit Until Date allow now have two options:

File Form I-539 (Application to Extend/Change Nonimmigrant Status) with USCIS before the Admit Until Date expires, which now comes with government review, biometrics, a background check, and a filing fee starting at $420, or
Depart the U.S. and re-enter with updated immigration documents reflecting the new program end date.

In effect, oversight of extended study is shifting from the university’s international student office to USCIS directly, adding a federal approval step that didn’t exist before. As explained above, filing before the deadline is what matters legally: a timely I-539 filing keeps a student in authorized stay while it’s pending, even though lengthy processing times, while a late filing offers no such protection.

What current students should do now

Students already in the U.S. under Duration of Status don’t lose status the moment the rule takes effect, but the new four-year clock begins running for them on September 15, 2026, and certain events (international travel, an approved extension, or program completion) will trigger the new fixed-admission framework. Practical steps to take now:

Confirm your program’s expected completion date and compare it to a four-year window from your original entry date.
If you’re in a program likely to run past four years, start planning your Extension of Stay filing well in advance — USCIS processing times are not instantaneous.
Talk to your school’s international student office and, if your situation is complicated (multiple degree changes, a gap in enrollment, a pending program transfer), consult an immigration attorney before the September 15 effective date.
Mark your Form I-94 Admit Until Date on a calendar the moment it’s issued. Missing it is no longer a paperwork inconvenience — it can mean accruing unlawful presence.

A rule still facing challenges

It’s worth noting the rule is being implemented “unless blocked in court,” in the words of one advocacy group tracking the change; litigation challenging aspects of the rule is possible, and international education advocates have raised concerns about the added cost and complexity discouraging enrollment at a time when international graduate enrollment has already declined significantly. We’ll continue to monitor developments and update this post if the effective date or requirements change.

The End of "Duration of Status": What F-1 Students Need to Know About DHS's New Rule