Short answer: if USCIS approved your change of status on a cap-subject petition, your H-1B October 1 validity date changes the legal basis of your employment. These approvals belong to the FY2027 cap, and cap-gap protection stops on September 30.
A pending petition tells a different story: a 2025 rule moved the cap-gap deadline off October 1 and onto April 1 of the fiscal year. An approval for consular notification gives you no status inside the country. We covered the wider picture in our piece on the seven immigration changes arriving October 1, 2026.
What you will find in this article
- Whether cap-gap really ends on September 30
- Change of status versus consular notification
- Where your new I-94 comes from
- The Form I-9 date employers miss
- Working while a petition waits, plus travel
Quick overview
| Question | Short answer |
|---|---|
| When does H-1B status begin? | On the petition’s validity start date, October 1, 2026 for cap cases. |
| When does cap-gap end? | September 30 on an approved case. It can run to April 1, 2027 while one waits. |
| What if the notice says consular notification? | Cap-gap ends; you depart and seek a visa. |
| When is Form I-9 reverification due? | March 31 of the fiscal year, or earlier once the approval arrives. |
How cap-gap ends when H-1B begins October 1
Cap-gap automatically extends F-1 status, and certain work authorization, once an employer files a cap-subject H-1B change of status petition. The regulation sets three conditions: timely filing, an employment start date in the relevant fiscal year, and a nonfrivolous petition. It covers post-completion OPT and STEM OPT authorization too.
Two dates compete, and the earlier one controls: April 1 of the fiscal year, or the petition’s validity start date. For FY2027 that means April 1, 2027 and October 1, 2026, so cap-gap closes on September 30.
Before DHS issued its modernization rule, the extension lasted only until October 1; the agency moved that deadline to April 1, effective January 17, 2025. So the old line that cap-gap always dies on September 30 no longer holds for a pending case.
Two kinds of cap-gap, and how it ends
The USCIS employer handbook separates two situations. A student who held no OPT at filing gains a status extension only and cannot work until H-1B begins. A student on post-completion OPT gains both. A student inside the 60-day departure period keeps status but no right to work.
Protection ends if USCIS rejects, denies, revokes, or never selects the petition, or if the employer withdraws it. It also ends when the change of status request fails, even where USCIS approves the petition for consular notification. F-2 spouses and children ride along on the status extension.
No new card arrives. Your proof is an updated Form I-20 showing the extension to April 1. If SEVIS cut your OPT end date back to September 30, your DSO can request a data fix.
Read the approval notice, not the subject line
A new I-94 at the bottom of Form I-797 generally signals an approved change of status, with validity starting October 1 on a cap case. A notice that approves the petition for consular notification changes nothing inside the country.
Compare the petitioning employer, the beneficiary’s name and date of birth, the classification, the validity dates, the I-94 number, and the approval type. Fix any error before you start work, and check that title, wage, and worksite track the certified LCA. See our guide on what an H-1B visa is and how to get one. Consular notification now shows up rarely: the September 18, 2026 proclamation reports a nearly 97 percent drop in such requests since the FY2025 cap season.
H-1B on October 1: checking your new I-94
On approval, the employer receives a Form I-797 carrying the employee’s new I-94. That record, not the visa foil in your passport, evidences your status. You can pull a paper copy of an electronic I-94 from the CBP I-94 website, and the form instructions point to Form I-102 when the site cannot. Check the name, classification, and expiration line by line.
Spouses and children: from F-2 to H-4
The principal’s approval moves no dependent on its own, so read each spouse’s and child’s I-539 decision, I-94, and validity dates separately. Cap-gap extends F-2 status with the principal, but H-4 rests on its own decision, and a family member abroad may need an H-4 visa. H-4 status alone carries no work permit; only qualifying spouses may file for an EAD.
The Form I-9 date employers miss
On a cap-gap record, an expired EAD plus the employer’s Form I-797C counts as an unexpired List A document. The handbook tells employers to enter March 31 of the relevant fiscal year as the expiration date, add “CAP-GAP” in the Additional Information field, and reverify in Supplement B by that date.
Once the approval lands, the employer finishes reverification with the new I-94 from Form I-797. The employee may instead present any other List A or List C document; no employer may demand a specific one. Do not wait until March, because the basis for work authorization shifts on October 1. Payroll should match the same date and the required LCA wage.
When the job or worksite changes: amended petitions
A material change in the approved terms calls for an amended or new petition. The regulation leaves little room: the filing needs a current or new certified LCA, it goes in before the change happens, and the employee cannot work under the changed terms until the amendment takes effect. A move outside the LCA area and a new client site both belong here.
Forms carry their own calendar. USCIS published the 09/09/26 edition of Form I-129 on September 9, 2026 and will accept only that edition from November 9. The 9-11 biometric fee reaches covered employers but does not apply to an amended petition that seeks no extension of status. Our article on the H-1B executive order and layoffs covers how such filings draw review.
Can you work in H-1B before October 1?
No. Authorization arrives with the petition’s validity start date, and cap-gap runs precisely up to it. Working on an H-1B basis earlier creates a status violation.
If your case still waits on October 1, your only bases are valid OPT, STEM OPT, or qualifying cap-gap. A pending petition authorizes nothing by itself. Premium processing may help, but the employer files Form I-907, and the fee schedule lists $2,965. Speed moves the decision up; it creates no work authorization.
If your OPT ends on September 30, cap-gap eligibility decides whether a gap opens. Eligible workers keep going, because the extension covers employment too. You may also file for a STEM OPT extension during cap-gap, though that door closes once the 60-day period starts. Follow the squeeze on F-1 work options and the duration of status case too.
A layoff before the approval takes effect leaves one narrow path back to unused OPT: an unexpired OPT card, plus a withdrawal request that reaches USCIS in time. Miss that window and your status converts, so you stop working and file Form I-539 for F-1 status.
Travel after October 1: the H-1B visa
Leaving while both the petition and the change of status request wait is the riskiest choice. USCIS states that it then treats the request as abandoned. With an approval in hand, and a return before H-1B takes effect, readmission in F-1 status generally works. The officer at the port of entry still decides.
After October 1 the F-1 route closes. You return on a valid passport, an H-1B visa where one applies, a copy of Form I-797, and proof of continuing employment. The regulation lets a beneficiary whose visa expires during the trip use that copy to apply for a new visa during the petition’s validity. Build appointment waits and administrative processing into the plan.
The $100,000 payment belongs here too. It reads as an entry restriction, and USCIS explains that a petition granted a change of status inside the country falls outside it, and that the worker stays outside it after departing to apply for a visa on that petition. Leave before adjudication, lose the change of status, and you land back inside its scope. The same page reports that a court vacated the implementing guidance on June 8, 2026 and that the First Circuit denied the government’s stay request on July 24. Our piece on the $100,000 fee extension has the background.
Common mistakes
- Assuming status changed without finding the new I-94
- Starting work on a consular notification approval
- Treating a pending petition as work authorization
- Traveling while the change of status request waits
- Delaying the start date over a missing visa stamp
Short checklist
- Does Form I-797 carry a new I-94 with October 1 validity?
- Do the employer, classification, and dates match?
- Are your Form I-20 and SEVIS record current?
- Did your I-9 team get the documents you chose?
- Do payroll, LCA wage, and worksite match the petition?
Frequently asked questions
Will USCIS issue a new EAD for H-1B on October 1?
No. H-1B work authorization flows from approved status and the petitioning employer, not from a card.
Can I keep working if my H-1B petition is pending on October 1?
Only on valid OPT, STEM OPT, or qualifying cap-gap. Confirm your Form I-20, your SEVIS record, and the case status together.
Can I travel right after October 1 and get an H-1B visa?
Legally possible, but the timing stays unpredictable. Appointment waits, screening, and administrative processing belong in the plan.
If cap-gap runs to April 1, does my expired OPT card matter?
The extension carries your work authorization, and your proof is the updated Form I-20 plus the employer’s Form I-797C.
Do my spouse and children become H-4 automatically?
No. Each dependent needs a separate I-539 decision or consular admission and their own I-94 record.
Conclusion: H-1B on October 1 is a paperwork problem
For an approved change of status, October 1 shifts the legal basis of your employment. Verify the approval type and the I-94, then line up Form I-9 and payroll on the same date. If your case still waits, cap-gap can run to April 1, so stay in the country until a decision issues.
To review your approval notice, confirm your work authorization while a petition waits, or weigh a travel plan, contact Clinch Law Firm.
Legal information notice
This content is general information only. It is not legal advice, creates no attorney-client relationship, and guarantees no outcome. Approval type, OPT history, SEVIS data, fees, form editions and litigation outcomes can change. Legal information checked on: September 30, 2026.
