Everything international students need to know about moving from OPT work authorization to H-1B status.
Optional Practical Training (OPT) and the H-1B visa are two distinct forms of U.S. work authorization that often form a natural sequence for international students. OPT is a temporary training benefit tied to your F-1 student status, while the H-1B is an employer-sponsored work visa. Understanding the transition timeline is critical to avoiding gaps in authorization.
| Feature | OPT | H-1B |
|---|---|---|
| Basis | F-1 student status | Employer-sponsored work visa |
| Duration | 12 months (+ 24-month STEM extension) | 3 years (extendable to 6) |
| Employer flexibility | Can change employers freely | Tied to sponsoring employer (portable with transfer) |
| Application | Through school DSO + USCIS | Employer files I-129 petition |
| Degree required | Must relate to field of study | Specialty occupation (bachelor's minimum) |
| Annual limit | None | 85,000 cap with lottery |
After completing a U.S. degree program, F-1 students can apply for 12 months of post-completion OPT. Students with degrees in STEM fields (science, technology, engineering, mathematics) can apply for an additional 24-month STEM OPT extension, for a total of 36 months of work authorization.
During OPT, you work under your EAD (Employment Authorization Document) and maintain F-1 status. Your employment must be directly related to your field of study. During the STEM extension, your employer must be enrolled in E-Verify and you must have a formal training plan (Form I-983).
The typical transition timeline works as follows:
The cap-gap is an automatic extension of your OPT work authorization and F-1 status that bridges the period between OPT expiration and H-1B start date (October 1). If your employer files a timely H-1B petition on your behalf and you are selected in the lottery, your OPT is automatically extended through September 30. This prevents a gap in work authorization.
Cap-gap applies only to the H-1B cap-subject petition filed for the upcoming fiscal year. It does not apply to cap-exempt petitions or petitions for future fiscal years.
If you exhaust your STEM OPT without being selected in the H-1B lottery, you must either leave the U.S., change to another visa status (such as O-1), or enroll in another degree program to maintain F-1 status. This is why many students apply for the H-1B lottery in each eligible year and explore parallel strategies like the O-1 visa or EB-2 NIW.
Search thousands of verified H-1B sponsors by company, industry, and location.
Search H-1B Sponsors on Wisa →With the 12-month OPT plus 24-month STEM extension, you can typically enter the H-1B lottery up to three times (once per fiscal year). Each attempt is independent, and you maintain work authorization throughout the STEM OPT period.
If you were selected in the H-1B lottery and your employer filed a timely petition, the cap-gap provision automatically extends your OPT through September 30. If you were not selected, you must stop working when your OPT expires.
During OPT, you can change employers freely as long as the new job relates to your field of study. Once your H-1B is filed, you can use H-1B portability to switch to a new employer who files their own H-1B petition on your behalf.
Yes. The 24-month STEM OPT extension is only available to students with degrees in STEM-designated fields as listed on the DHS STEM Designated Degree Program List. Your employer must also be enrolled in the E-Verify program.