Cap-Gap Extension

Cap-gap is an automatic extension of F-1 status, and in some cases OPT employment authorization, that bridges the period between the expiration of F-1 OPT authorization and the start of H-1B status.¹ Under a DHS final rule effective January 17, 2025, the cap-gap period runs until April 1 of the fiscal year following the one for which the H-1B petition was filed, rather than terminating on October 1 as under the prior rule.¹ Cap-gap activates automatically by regulation once a qualifying H-1B petition is filed, without requiring a separate USCIS application.³

H-1B Cap Structure and the Filing Calendar

H-1B visas for most employers are subject to an annual numerical cap — 65,000 general category slots per fiscal year, plus 20,000 for beneficiaries with a US master's degree or higher.¹ The H-1B fiscal year begins on October 1, and an employer cannot file a cap-subject petition more than six months before the employment start date, making April 1 the earliest possible filing date.¹

Because OPT and STEM OPT are tied to degree completion dates rather than fiscal years, many students' OPT expires sometime between April and September — before H-1B status can begin. A student whose OPT expires on June 15 and whose H-1B petition was filed April 1 would have a gap of roughly three and a half months during which they have neither OPT work authorization nor H-1B status. Cap-gap fills that period automatically.⁵

What Cap-Gap Extends

Cap-gap extends two things, but not always both simultaneously:¹

F-1 student status is always extended for all eligible students regardless of whether they were working on OPT. This means the student remains a lawful F-1 nonimmigrant and does not accrue unlawful presence during the cap-gap period.

OPT employment authorization is extended — allowing continued work — only for students who had a valid, unexpired OPT EAD on the date the H-1B petition was filed AND whose employer requested a change of status from F-1 to H-1B in the same petition (rather than consular processing abroad).⁴ A student who files for a cap-gap but whose OPT expired before the H-1B petition was filed cannot work during the gap; their F-1 status is protected but employment is not.⁶

Eligibility Requirements

To qualify for a cap-gap extension, the student must:¹

Have been in a valid period of post-completion OPT (including STEM OPT) on the date the H-1B petition was filed. The petition must have been filed before the OPT EAD expired. An H-1B petition filed after the EAD expires triggers only the F-1 status extension, not the work authorization extension.

The H-1B petition must be a cap-subject petition — either filed under the regular 65,000-visa cap or the 20,000-visa US advanced degree exemption (the "master's cap"). H-1B cap-exempt petitions (for nonprofit research organizations, government research organizations, or institutions of higher education) do not trigger cap-gap.¹

The petition must request a change of status from F-1 to H-1B to extend OPT work authorization. A student whose employer filed for consular processing (requiring the student to travel abroad and obtain an H-1B visa stamp) does not receive work authorization extension under cap-gap — only F-1 status extension.⁴

Duration and Termination

The cap-gap extension runs automatically from the date the H-1B petition is filed (or from the OPT EAD expiration date, whichever is later) until April 1 of the fiscal year following the one for which the H-1B petition was filed, unless the petition is denied, withdrawn, or revoked earlier.¹ Under the prior rule, cap-gap ended on October 1; the January 17, 2025 DHS final rule extended this end date to April 1.

If the H-1B petition is denied or withdrawn at any point before October 1, the cap-gap extension terminates immediately. The student then has 60 days to depart the US (the standard F-1 grace period after status termination) unless they have another basis for lawful status.²

If the student was not selected in the H-1B lottery (since most petitions are entered into a random selection process before formal filing), cap-gap never applies — a registration that is not selected does not constitute a filed petition.⁶ Cap-gap only activates when an actual I-129 H-1B petition is physically received and receipted by USCIS.

Travel During Cap-Gap

A student who departs the United States during cap-gap abandons their F-1 OPT employment authorization for the remainder of the gap period. To return, the student would need a valid H-1B visa stamp — which, if not already held, requires applying at a US consulate abroad.⁴ Students who traveled during cap-gap and had their H-1B petition subsequently denied would be unable to return in F-1 status to continue OPT, since their OPT period will have expired.⁵

Documentation

USCIS does not issue a new EAD for the cap-gap period. The student demonstrates cap-gap employment authorization by presenting their expired OPT EAD together with the H-1B I-129 receipt notice confirming timely filing.¹ Employers record both documents in their I-9 employment eligibility verification records and note April 1 of the following year as the employment authorization expiration date for I-9 reverification purposes.⁴