STEM OPT vs Canada's PGWP: Which Gives You More Time to Find Sponsored Work
By Muntasir Minhaz • Published Aug 19, 2026
US STEM OPT gives up to 36 months of work authorization tied to one employer relationship at a time. Canada's PGWP gives an open work permit whose length depends on your program and current IRCC rules.
🎓 STEM OPT = 12 months initial OPT plus a 24-month STEM extension, up to 36 months total
📩 STEM OPT needs a DHS-listed STEM major and an employer enrolled in E-Verify
🛂 PGWP length depends on how long your program was, and which programs qualify has narrowed
💵 PGWP is an open work permit, you are not tied to one employer or occupation
⏱️ Both systems have changed eligibility rules recently, confirm details on the official page before you enroll
What STEM OPT gives you
F-1 students with a qualifying STEM degree get up to 24 additional months of work authorization on top of the standard 12-month Optional Practical Training period, for a total of 36 months, according to ICE's SEVP STEM OPT page . That is three years to work in your field, build experience and look for an employer willing to sponsor an H-1B or a green card later.
STEM OPT status stays tied to F-1, so you remain a student in immigration terms even while working full time. Your employer files paperwork through your school's international office each time you change jobs during the extension period.
STEM OPT eligibility rules
To qualify you need a degree on the Department of Homeland Security's STEM Designated Degree Program List, an employer enrolled in E-Verify, and a signed Form I-983 training plan completed by both you and the employer, per Study in the States . DHS runs site visits during the extension period, and enforcement of these visits has increased since 2025, so keep your paperwork and reporting current.
If your degree is not on the STEM list, you get only the standard 12-month OPT, not the extension.
What Canada's PGWP gives you
The Post-Graduation Work Permit is an open work permit, meaning you work for almost any employer in almost any occupation without a separate job-specific authorization. Permit length depends on how long your study program was and which credential you completed, with IRCC setting the exact brackets and maximum length on its official page, per canada.ca .
Unlike STEM OPT, PGWP eligibility has nothing to do with your field of study in principle. A graduate in history and a graduate in engineering apply under the same basic rules, though which programs and institutions qualify at all has narrowed in recent years.
PGWP eligibility has gotten stricter
IRCC has tightened which study programs and institutions make a graduate eligible for a PGWP at all, including added language-test requirements for some applicants. These rules have moved more than once in the past two years, so confirm your own program's PGWP eligibility on canada.ca's eligibility page before you enroll, not after.
Open permit vs employer-tied authorization
The PGWP's biggest advantage is flexibility. You change employers and industries freely while you look for a company willing to sponsor your permanent residency application later, usually through Express Entry with a Canadian job offer adding points. STEM OPT ties you to a specific employer and job duties matched to your degree field, and switching employers means new paperwork through your school.
STEM OPT's advantage is length for STEM graduates specifically. Three years is a long runway to convert a job into an H-1B sponsorship, especially since the H-1B lottery runs once a year and multiple attempts are common.
Which gives you more room to find sponsored work
A STEM graduate in the US gets more total months of work authorization than most Canadian PGWP holders, but that time comes with employer and field restrictions the PGWP does not have. A non-STEM graduate is better served by Canada's system, since the US offers those graduates only 12 months against Canada's program-length-based permit.
Neither system converts work authorization into a residency status by itself. Both need a further step: employer sponsorship through the H-1B and green card process in the US, or a further Express Entry application in Canada.
Family and dependents while you search
An F-2 dependent spouse on STEM OPT status generally cannot work in the US, a real limitation for a married graduate weighing where to build a career.
A spouse of a PGWP holder typically applies for their own open work permit in Canada, letting both partners work while one holds the PGWP. Confirm current dependent work rules for your specific status on canada.ca and uscis.gov before assuming either way.
Getting past the H-1B lottery
USCIS runs the H-1B registration lottery once a year, and registrations have exceeded the annual cap every year for over a decade. A STEM OPT holder who is not selected keeps working under STEM OPT until the 36 months run out, then loses work authorization unless another status applies. This numerical cap has no equivalent in Canada's system, where a PGWP holder moving toward permanent residency through Express Entry faces a points threshold rather than a random draw.
Cost to apply
STEM OPT itself carries no extra government fee beyond the original OPT application, though your employer takes on paperwork and E-Verify enrollment costs. PGWP carries its own application fee set by IRCC, and both systems' exact current fees change periodically. Check Study in the States and canada.ca for current amounts before budgeting.
A practical example
A computer science graduate on STEM OPT works up to three years at one employer, or a sequence of employers with proper reporting, before needing another status, giving up to three separate annual H-1B lottery attempts if the employer registers each year. A computer science graduate with a Canadian PGWP typically gets a shorter permit unless the program itself ran long enough to qualify for the maximum, but faces no lottery step to keep working, only the separate step of applying for permanent residency once ready. Weigh both against your own field and family plans before picking a country based on work-authorization length alone.