OPT Cap Gap: Work Authorization While Waiting for H-1B
If your employer timely files a selected cap-subject H-1B petition, OPT work authorization runs until the April 1 after the October 1 start date.
The OPT Cap Gap Extension
Cap gap is an automatic extension of F-1 OPT work authorization that applies when an employer files a cap-subject H-1B petition by April 1st and that petition is selected in the annual H-1B lottery. Because H-1B employment begins on October 1st and most OPT authorizations expire before that date, the cap gap extension bridges the period between OPT expiration and the H-1B start date.
The extension runs until the April 1 that follows the October 1 H-1B start date, or until the start date on the approved petition if that comes first, no matter when your OPT was originally set to expire. If your OPT ended in June and you are in cap gap, you can keep working for the same employer past October 1 while USCIS is still working through the petition. Before the DHS rule that took effect on January 17, 2025, the extension stopped on September 30, and older guides still describe it that way.
Cap gap only applies to cap-subject H-1B petitions filed for an October 1st start date. Cap-exempt employers (certain universities, nonprofits, and research institutions) are not subject to the annual cap and their H-1B petitions do not trigger cap gap.
Source: DHS Study in the States, How the 2025 H-1B rule extends the F-1 cap gap to April 1
Who Is Covered by Cap Gap
Cap gap applies when all three of the following are true at the time the H-1B petition is filed:
- You are in valid F-1 status with an active OPT EAD, or your OPT EAD has expired but you are within a prior cap gap extension period
- Your employer files a cap-subject H-1B petition on your behalf by April 1st of the lottery year
- The H-1B petition is selected in the H-1B lottery
The H-1B petition must request a change of status (not consular processing) for cap gap work authorization to apply. If the petition is filed for consular processing, you are protected from accruing unlawful presence during cap gap but cannot work after your OPT EAD expires.
Source: USCIS Cap-Gap Extensions, USCIS guidance on the cap gap extension of OPT and F-1 status
Work Authorization During Cap Gap
If the H-1B petition includes a change of status request, you can keep working for the same employer after your OPT EAD expires, with no break in authorization, until the April 1 that follows the October 1 start date or until the start date on the approved petition, whichever comes first. If the petition is still pending on October 1, your F-1 status and your work authorization both continue while USCIS decides it. The extension is automatic, and USCIS does not issue a new EAD for it.
Your DSO updates your I-20 to reflect the cap gap period. The updated I-20, combined with your USCIS receipt notice for the H-1B petition, serves as documentation of your continued work authorization during this period.
Cap gap work authorization is tied to the specific employer named in the H-1B petition. You cannot change employers during cap gap. If you leave the employer or the petition is withdrawn, the cap gap extension ends immediately.
If the H-1B Petition Is Denied or Withdrawn
If USCIS denies, rejects, or revokes the H-1B petition after the cap gap extension has begun, the extension ends immediately. You receive a 60-day grace period from that date to depart the US, apply for a change of status, or otherwise take action to maintain lawful immigration status.
If the employer withdraws the petition before USCIS adjudicates it, the same result applies. The cap gap extension ends and the 60-day grace period begins from the withdrawal date.
The 60-day grace period does not include work authorization. Once the H-1B petition is denied, rejected, revoked, or withdrawn, your authorization to work in the US ends immediately. Contact your DSO as soon as you learn of any of these.
STEM OPT Students and Cap Gap
Students on the 24-month STEM OPT extension have the same cap gap benefit as students on initial OPT. If an employer files a cap-subject H-1B petition by April 1 and the petition is selected in the lottery, work authorization continues under the same rules, until the April 1 that follows the October 1 start date or the start date on the approved petition, whichever comes first.
STEM OPT students should work with their DSO to confirm the correct I-20 documentation for their specific timeline, particularly if the STEM OPT extension is still pending when the H-1B petition is filed.
Traveling Internationally During Cap Gap
Traveling outside the US during cap gap carries significant risk. Your OPT EAD has expired. Cap gap is an administrative status extension inside the US, not a visa or travel document. Re-entering the US after international travel requires a valid, unexpired F-1 visa stamp.
If your F-1 visa stamp is expired and you travel abroad, you will need to apply for a new stamp at a US consulate before returning. Consulate wait times vary, and the cap gap period could end before you obtain a new stamp and return.
Most immigration attorneys advise against international travel during cap gap unless you have a valid, unexpired F-1 visa stamp. Consult your DSO and an immigration attorney before booking any travel during this period.
Frequently Asked Questions
What is cap gap?
Can I keep working during cap gap?
What happens if my H-1B is denied during cap gap?
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See how far cap-gap carries you
Enter your OPT dates and see how long cap-gap can keep you working while your H-1B petition is pending.
Related Guides
STEM OPT Extension Explained
Everything you need to know about the 24-month STEM OPT extension, including CIP code requirements, E-Verify employers, Form I-983, and application timing.
OPT Grace Period: The 60-Day Window After OPT Ends
After OPT or STEM OPT expires, F-1 students have 60 days to prepare for departure, change status, or begin new studies. Work authorization ends with OPT.
H-1B Cap for OPT Students: Lottery and Cap Gap
Understand the H-1B cap season, the lottery process, cap-gap extensions, and how OPT serves as a bridge to H-1B sponsorship for F-1 students.