F-1 Duration of Status Is Ending: What OPT and STEM OPT Students Must Do Now.

What Duration of Status was, and why it's ending

Duration of Status (D/S) meant your F-1 admission never carried a fixed end date. Your Form I-94, the official US arrival record, simply said "D/S" instead of a specific expiration. You stayed legally as long as you kept meeting your program requirements, whether that took the standard length of your degree or an extra semester. That flexibility is exactly what's disappearing.

On July 17, 2026, DHS published a final rule titled Establishing a Fixed Time Period of Admission and an Extension of Stay Procedure in the Federal Register, ending D/S for F, J, and I visa categories. The stated goal is tighter tracking of who is actually still enrolled or authorized to work. Whatever the policy merits, the practical effect for students is the same. A system that used to require nothing extra as long as you stayed on track now requires active paperwork at specific points. Missing one of those points is a real risk in a way it never was before.

The new rule in plain terms

Starting September 15, 2026, F-1 students are admitted for a fixed period tied to the program end date on their Form I-20, the document your school issues certifying your enrollment, not to exceed four years. That period includes a 30-day window to arrive before your program starts and a 30-day window at the end, according to DHS's own Study in the States guidance. English-language training programs are capped separately at 24 months.

Your program might run longer than your original admission period. Maybe you change your major, extend your thesis, or move from a master's into a PhD. In any of those cases, you'll need to file for an Extension of Stay (EOS) using Form I-539 before your admission expires. Your school's international office has to issue an updated I-20 first. Re-enter the US on or after September 15, 2026, even briefly, and you'll be readmitted under the new fixed-date system regardless of when you originally arrived.

The grace period cut: 60 days to 30

The post-completion grace period, the window after your program or OPT ends during which you can prepare to leave, transfer schools, or change status, is being cut in half. It drops from 60 days to 30, bringing F-1 in line with the J-1 exchange visitor category, which already used 30 days. Students admitted under D/S before September 15, 2026 generally keep the 60-day grace period, but that protection disappears the moment they travel internationally and are readmitted after the effective date.

This detail matters more than it looks. A shorter grace period means less runway to sort out a job offer, a change of status, or a flight home after finishing your program or your OPT authorization. STEM OPT students planning an H-1B transition should treat 30 days as the real number to plan around, not 60.

If you're already on OPT or STEM OPT

DHS built in a real transition provision, and it's more generous than most of the alarmed coverage of this rule suggests. If you're an F-1 student in the US on September 15, 2026, you can remain through your Program End Date or the end of your valid OPT or STEM OPT authorization. No extra filing is needed for that. The hard cap is November 14, 2030, four years from the rule's effective date plus a 60-day departure period. You don't need to rush to file an EOS just because the rule took effect.

Where it gets real is if your authorization would run past that cap, or if you need to file a fresh post-completion OPT or STEM OPT application after the effective date. That's where the March 18, 2027 deadline below actually applies to you.

The March 18, 2027 filing deadline

DHS gave a six-month transition window after the rule's effective date. File Form I-765 for post-completion OPT or a STEM OPT extension on or before March 18, 2027, and you do not need to also file Form I-539 to cover that period, according to DHS's own FAQ. File after that date, and the I-765 has to go in alongside an I-539 extension of stay, adding a second application, a second set of biometrics in some cases, and a real chance of a processing gap if either piece is delayed.

The safest move: if you know you'll need to file for OPT or STEM OPT anywhere near that window, file as early as your school allows. That's generally up to 90 days before your program end date. Don't wait to see how the transition period plays out. The rule rewards students who file early and creates a genuinely more complicated process for anyone who files late by habit.

What this actually costs

A lot of coverage of this rule, and an earlier draft of this article's own research, quoted "the OPT fee rose from $1,685 to $1,780" without the context that actually matters. That $1,780 figure is USCIS's Premium Processing fee, an optional add-on that guarantees a 30-business-day decision, and it rose from $1,685 to $1,780 effective March 1, 2026, according to USCIS's own fee schedule. Most students never pay it.

The standard Form I-765 filing fee, the one that actually applies to pre-completion OPT, post-completion OPT, and STEM OPT extensions alike, is $470 if you file online or $520 by paper. If the new rule pushes you into also filing a Form I-539 extension of stay, that carries its own separate fee on top. Confirm the current I-539 fee directly on USCIS's I-539 page before filing, since USCIS fees now adjust for inflation annually starting 2026.

What to do now

Regardless of where you sit in your program right now, four things are worth doing before September 15, 2026, or shortly after:

1. Find your Form I-20's program end date and calendar it. That date, not your personal sense of when your program "should" end, is what drives your new fixed admission period.
2. If you're within a year of finishing and plan to use OPT or STEM OPT, talk to your school's international student office now about filing timing, especially anything that would land your I-765 near March 18, 2027.
3. If you have any international travel planned around September 2026, know that re-entering after the 15th puts you under the new fixed-period system immediately, regardless of when you first arrived on F-1.
4. Don't budget for a $1,780 filing fee you probably don't owe. Budget for $470–$520, and treat Premium Processing as optional, not standard.

Frequently asked questions

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