OPT to H-1B: Timeline, Cap-Gap, and What to Do If You're Not Selected

The OPT to H-1B transition is how F-1 students stay and work in the U.S. long-term, but the process runs on a fixed annual calendar and missing a step can cost you a full year. Knowing the timeline gives you far more control over the outcome than most people realize when they start.

OPT to H-1B change of status timeline

Each year, USCIS makes 85,000 cap-subject H-1B slots available: 65,000 for the regular cap and 20,000 for the advanced degree exemption.

An F-1 to H-1B change of status means your employer petitions USCIS to switch your immigration classification while you remain in the U.S. "Cap-subject" means your petition counts against one of those 85,000 slots, which is why a lottery exists.

October to February: Find an employer and prepare

Your employer needs to agree to sponsor your H-1B before anything else can move forward. Most companies won't file unless you're already working there, so bring up sponsorship by October or November at the latest. Employers need lead time to engage immigration counsel, gather documents, and get internal approvals in place.

Most employers want you working for them before they invest in the process, but it's not a strict requirement. Worth knowing: cap-exempt employers like universities, nonprofit research organizations, and government research labs can file year-round with no lottery. If your current employer isn't willing to sponsor, that's a category worth exploring sooner rather than later.

March: H-1B electronic registration

Your employer submits an electronic registration during the USCIS H-1B registration window, which typically opens in early March and runs for about two weeks (the FY2027 window ran March 4–19, 2026). Verify the exact dates on the USCIS website each year before your employer files.

Starting with FY2027 registrations (opening March 2026), USCIS will use a wage-based weighted lottery under a rule effective February 27, 2026. Level IV wages receive four entries, Level III gets three, Level II gets two, and Level I gets one. For OPT holders in STEM roles, which typically fall in higher wage categories, this change meaningfully improves your odds.

April: lottery results and petition filing

USCIS runs the selection from all registered beneficiaries. In the FY2026 lottery cycle, USCIS received eligible registrations for approximately 336,153 unique beneficiaries with a selection rate of approximately 35%.

If you're selected, your employer has until June 30 to file the full I-129 petition. If you're not selected in the first round, USCIS sometimes runs additional rounds if the cap isn't filled. Your employer can monitor for those, and you don't need to take any separate action.

H-1B cap-gap extension

The cap-gap is the period between when your F-1/OPT status expires and when your H-1B status begins on October 1. USCIS automatically bridges that gap, so you don't fall out of status while you wait.

What the cap-gap covers

Under the January 2025 cap-gap rule, the cap-gap extension now runs until April 1 of the following fiscal year, six extra months beyond the previous October 1 cutoff. This matters if your H-1B petition is still being adjudicated or you're waiting for your status to take effect.

To qualify, you need to be in valid F-1 status when your employer files the H-1B petition, and the petition must request change of status rather than consular processing. Consular processing means your H-1B would be issued at a U.S. embassy abroad, which requires you to leave the U.S. and return with the visa stamp before October 1. The cap-gap doesn't apply in that scenario.

The cap-gap only activates if your OPT expires before your H-1B start date. If your OPT runs past October 1 and your H-1B is already approved, you won't need it.

One timing detail worth noting: if you've already entered your 60-day grace period before the petition is filed, you receive the status extension but not work authorization during the cap-gap period. Getting your employer to file early makes a real difference here.

What happens if your petition is denied or withdrawn during cap-gap

If your H-1B petition is denied during the cap-gap period, cap-gap protection ends and your 60-day grace period begins from the date of denial. The same applies if your employer withdraws the petition. Your options at that point are to change to another valid immigration status, file for STEM OPT extension if you haven't already, or prepare to depart. It's worth knowing this scenario ahead of time so it doesn't catch you off guard.

STEM OPT and the H-1B lottery

To use the STEM OPT extension, you must be employed by an E-Verify employer and file a separate Form I-765 before your standard OPT expires. Don't wait until the last minute. Processing times can eat into your window.

At a roughly 35% selection rate per year, your cumulative odds across multiple attempts are:

• One attempt: approximately 35%
• Two attempts: approximately 58%
• Three attempts: approximately 73%

That's a meaningful shift from uncertain to solid odds, just from using the authorization you're already entitled to.

These odds assume a flat selection rate based on FY2026 data. Under the FY2027 wage-based system, your actual odds depend on your offered wage level. STEM roles often fall in Level II to Level IV, meaning two to four lottery entries instead of one — which shifts those cumulative percentages upward considerably. Form I-765 before your standard OPT expires. Processing times can eat into your window, so file as early as you're eligible.

The wage-based lottery adds another layer of advantage for STEM OPT holders. STEM roles typically fall in Level II to Level IV wage categories, which means more entries under the new weighted system. If you're negotiating an offer, this is worth factoring into your salary discussions.

What happens if you're not selected

Not winning the lottery doesn't mean your time in the U.S. is over. Your OPT or STEM OPT authorization continues until it expires, and there are real paths forward worth understanding now rather than after the results come in.

• Apply for the STEM OPT extension. If you have a qualifying STEM degree and haven't used your 24-month extension yet, file your I-765 before your current OPT expires.
• Seek a cap-exempt employer. Universities, teaching hospitals, nonprofit research organizations, and government research organizations can file H-1B petitions year-round with no lottery. You can work for a cap-exempt employer and still be registered for the cap-subject lottery by a different employer simultaneously.
• Re-enter next year's lottery. If you still have valid OPT or STEM OPT, your employer can register you again in March.
• Explore the O-1 visa. If you have extraordinary ability or achievement in your field, the O-1 has no annual cap and no lottery.
• Prepare for departure. Once your OPT fully expires, you enter a 60-day grace period to prepare to leave the U.S. or change to another valid status.

The key is to plan before your authorization runs out. Don't wait until the last month of OPT to explore alternatives.

Finding an employer who sponsors H-1B visas

For most OPT holders, the bigger barrier isn't the lottery odds. It's finding an employer who's actually willing to sponsor. Companies without H-1B filing history are more likely to delay, back out, or misunderstand the process entirely.

H-1B sponsorship history is public through Department of Labor H-1B disclosure data (public records of every LCA petition filed), so you can verify whether a company has actually filed before. Employers who've sponsored in the past know the timeline, the costs, and what their immigration attorney needs.

Migrate Mate aggregates this data so you can target companies with proven sponsorship experience instead of guessing.

Frequently asked questions