Introduction
If you're an international student in the US, or planning to become one, you've probably heard OPT and CPT mentioned in the same breath a hundred times. So what is OPT/CPT, really?
In short, they're the two work authorization programs that let F-1 students gain real work experience in the United States. CPT (Curricular Practical Training) lets you work during your degree. OPT (Optional Practical Training) lets you work during or, more commonly, after it.
That one-line answer hides a lot of fine print, though. Use CPT the wrong way and you can lose your OPT eligibility entirely. Miss an OPT deadline and there's no do-over. We've seen talented graduates lose job offers over paperwork timing, which is a painful way to learn immigration rules.
This guide walks through how each program works, who qualifies, how they differ, and what's changing in 2026.
TL;DR
- OPT and CPT are the two work programs available to F-1 students. CPT happens during your degree and is tied to your curriculum. OPT usually happens after graduation.
- CPT is approved by your school's DSO and shows up on your I-20. OPT requires a USCIS application (Form I-765) and an EAD card before you can work.
- Twelve months or more of full-time CPT makes you ineligible for post-completion OPT at the same degree level. This is the single biggest trap.
- Standard OPT gives you 12 months of work authorization. STEM graduates can extend it by 24 months, for 36 months total.
- In 2026, both programs face tighter scrutiny, higher fees, and a proposed shift to fixed admission periods, so early planning matters more than ever.
What is OPT/CPT?
Both programs fall under what US immigration law calls "practical training" for F-1 students.
The idea is simple: your education shouldn't stop at the classroom door. Practical training lets you apply what you're studying in a real workplace, legally, without a separate work visa.
Here's the shared foundation. To qualify for either program, you must:
- Be enrolled full-time at an SEVP-certified school
- Have completed at least one full academic year (with a narrow exception for graduate programs that require earlier training)
- Work in a role directly related to your major field of study
Students in English language training programs don't qualify for either one.
The difference comes down to timing, approval, and purpose.
CPT is part of your curriculum, approved by your school, and happens before your program's end date.
OPT is optional (hence the name), approved by USCIS, and most students save it for after graduation.
How CPT works
Curricular Practical Training covers internships, co-ops, and practicums that are an integral part of your established curriculum. The keyword is "curricular."
If the work isn't connected to your coursework, either through a required internship, a course that awards credit for the work, or a formal cooperative agreement between your school and the employer, it doesn't qualify.
Who approves CPT and how fast
Your Designated School Official (DSO) authorizes CPT directly in SEVIS. No USCIS application, no filing fee, no months of waiting.
Once approved, the authorization appears on page 2 of your Form I-20, listing your employer, dates, and whether the training is part-time or full-time. Most schools turn this around in one to two weeks, which is why CPT works well for internships with quick start dates.
One thing that surprises students: you need a specific job offer before your DSO can authorize CPT. The authorization is employer-specific. Switch employers, and you need a new authorization.
Part-time vs Full-Time CPT and the 12-Month rule
CPT comes in two flavors:
- Part-time CPT: 20 hours per week or less. You can use unlimited part-time CPT without affecting your OPT.
- Full-time CPT: more than 20 hours per week. This is where the trap sits.
An F-1 student who completes 12 months or more of full-time CPT becomes ineligible for post-completion OPT at the same educational level. Eleven months and 29 days? You're fine. Twelve months? Your OPT is gone.
We'd argue this rule causes more heartbreak than any other in the F-1 system, mostly because students don't track their cumulative CPT time across semesters. Keep a running count. Your DSO can pull the totals from SEVIS if you ask.
Also worth knowing: when school is in session, you must maintain a full course load even while on CPT. CPT authorization is only required for training inside the United States. A summer internship back home doesn't need it.
How OPT works
Optional Practical Training gives you up to 12 months of work authorization per degree level, in a job directly related to your major. Unlike CPT, you don't need a job offer to apply.
That flexibility is exactly why OPT is the standard launchpad for international graduates starting careers in the US.
Pre-completion vs post-completion OPT
You can use OPT before finishing your degree (pre-completion) or after (post-completion).
Here's the catch: it's one shared 12-month bucket. Every month of full-time pre-completion OPT you use gets deducted from your post-completion time. Six months of full-time pre-completion OPT leaves you with only six months after graduation.
Because CPT usually covers during-degree work needs without touching the OPT clock, most students save their full 12 months for after graduation. That's usually the smarter play.
The application process
OPT approval comes from USCIS, not your school, and the process takes real time. Here's the typical sequence:
Two hard rules here. First, USCIS must receive your I-765 within 30 days of your DSO's SEVIS recommendation, or the application gets denied. Second, working even one day before your EAD start date is a status violation.
The 90-day unemployment rule
Once your post-completion OPT starts, a clock begins. You're allowed a maximum of 90 days of unemployment across your 12-month OPT period. Go over, and you've violated your F-1 status automatically. The clock starts on your EAD start date, not the day you find a job, so applying for OPT without any job leads in motion is risky.
Part-time work of 20+ hours per week in your field counts as employment, and multiple part-time jobs can be combined. Properly documented self-employment can count too.
OPT vs CPT: side-by-side comparison
The two programs aren't rivals. Used well, they're a sequence: part-time CPT for internships during school, then the full 12 months of OPT (plus a possible STEM extension) after graduation.
Employers hiring international talent see this pattern constantly, and recruiters who understand it move faster.
That knowledge gap is one reason companies lean on staffing partners who work with visa-holding candidates every day, something we've covered in our guide to the best IT staffing firms in 2026.
The STEM OPT extension
If your degree appears on the DHS STEM Designated Degree Program List, you can apply for a 24-month extension of your post-completion OPT. That brings your total to 36 months of US work authorization on a single degree.
The requirements are stricter than standard OPT:
- Your employer must be enrolled in E-Verify
- You and your employer must complete Form I-983, a formal training plan
- You must report to your DSO every six months, even if nothing changed
- Unemployment allowance increases by only 60 days (150 days total across all 36 months)
For most students, those 36 months matter for one big reason: the H-1B lottery. Three years of OPT typically means three lottery attempts while working legally.
If you're mapping that path, our breakdown of H-1B visa sponsorship for tech professionals explains what happens after OPT, and the recent H-1B $100K fee ruling covers the cost side employers are now weighing.
Common mistakes that cost students their status
Most F-1 status problems aren't dramatic. They're small timing errors with outsized consequences.
One more from the recruiting side: interview readiness. Work authorization gets you eligible, but it doesn't get you hired.
If you're a student heading into technical rounds, our 2026 coding interview playbook is a practical place to start.
What's changing for OPT and CPT in 2026
The core rules of both programs remain intact, but the environment around them is shifting. A few developments worth watching:
Fixed admission periods. In May 2026, DHS proposed replacing the long-standing "Duration of Status" framework with fixed admission periods of up to four years for F-1 students. Programs running longer would require a formal Extension of Stay filed with USCIS.
A shorter grace period. The same proposal would cut the post-completion grace period from 60 days to 30. If finalized, that halves the window you have after graduation to file for OPT, change status, or depart.
Higher fees. The Form I-765 filing fee rose to $1,780 in 2026, and some applicants now face in-person biometrics appointments, which can add processing time.
More scrutiny, not elimination. Despite the rumors that circulate every year, OPT is not ending. What's real is tighter compliance checking: closer review of whether jobs match fields of study, stricter SEVIS reporting expectations, and more attention on schools that authorize aggressive full-time CPT.
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Key takeaways
- OPT/CPT are the two F-1 work authorization programs: CPT for curriculum-connected work during your degree, OPT for up to 12 months of work per degree level, usually after graduation.
- CPT is fast and free through your DSO but requires a job offer. OPT costs $1,780, takes months to process, and requires an EAD before you can work.
- Never cross 12 months of cumulative full-time CPT at one degree level, or you forfeit post-completion OPT entirely.
- On OPT, you get a maximum of 90 unemployment days, so line up your job search before your start date, not after.
- STEM graduates can extend OPT to 36 total months, which usually means three shots at the H-1B lottery while working legally.
FAQs
What is the difference between OPT and CPT?
CPT is work authorization used during your degree for training that's an integral part of your curriculum, and your school's DSO approves it. OPT is a separate 12-month work benefit, usually used after graduation, that requires USCIS approval and an EAD card. CPT needs a job offer upfront; OPT doesn't.
Can I use both CPT and OPT?
Yes, and most students do. You can use part-time CPT for internships during school without losing any OPT time. The only restriction is full-time CPT: hit 12 cumulative months of it and you lose post-completion OPT at that degree level.
Does CPT affect my OPT eligibility?
Part-time CPT (20 hours a week or less) never affects OPT, no matter how long you use it. Full-time CPT only becomes a problem at 12 or more cumulative months at the same degree level. Under that threshold, your full 12 months of OPT stay intact.
How long does OPT last for F-1 students?
Standard post-completion OPT lasts 12 months per degree level. Students with qualifying STEM degrees can apply for a 24-month extension, bringing the total to 36 months. Any full-time pre-completion OPT you use gets subtracted from your post-completion balance.
Do I need a job offer to apply for OPT?
No. You can file Form I-765 for post-completion OPT without any job lined up. Just remember the 90-day unemployment limit starts running on your EAD start date, so it's smart to have your search well underway before then.
How much does it cost to apply for OPT in 2026?
The Form I-765 filing fee is $1,780 as of 2026, up from $1,685. CPT, by contrast, has no filing fee since your school authorizes it directly. Always confirm the current fee on the USCIS website before mailing your application, because an incorrect fee gets the whole package rejected.