CPT vs OPT: Key Differences Every F-1 Student Must Know

CPT vs OPT is one of the most searched questions by F-1 students. Here is a clear breakdown of how the two work permits differ.

CPT and OPT are the two main ways F-1 students can gain real work experience in their field in the United States. They sound similar, but they work very differently.

What is CPT?

Curricular Practical Training (CPT) is work authorization for an internship, co-op or practicum that is an integral part of your academic program.

Authorized by your school’s DSO, not USCIS
Usually available after completing one full academic year in status (some graduate programs that require it from the start are an exception)
Tied to a specific employer and specific dates
Can be part-time or full-time
Using 12 months or more of full-time CPT makes you ineligible for OPT at that degree level

What is OPT?

Optional Practical Training (OPT) is temporary work authorization directly related to your major.

Requires a recommendation from your DSO and approval from USCIS (Form I-765)
Generally up to 12 months per degree level
Most students use it after graduation (post-completion OPT)
You receive an Employment Authorization Document (EAD) card
Limited days of unemployment are allowed, so plan your job search early

STEM OPT extension

If your degree is on the STEM Designated Degree Program List, you may qualify for a 24-month extension on top of the initial OPT period, with an employer enrolled in E-Verify and a formal training plan (Form I-983).

Quick comparison

Timing: CPT during your program; OPT usually after it
Approval: CPT by your school; OPT by USCIS
Employer: CPT needs a specific employer first; OPT does not need a job offer to apply

Common mistakes

Starting work before the authorization start date, applying for OPT too late, and not reporting employer changes to your school are all mistakes that can hurt your status. Mark every deadline on your calendar.

Frequently Asked Questions About CPT vs OPT

Which is better, CPT or OPT?

Neither is better; they serve different purposes. CPT is for training that is part of your curriculum during your program, while OPT is usually used after graduation.

Can I use both CPT and OPT?

Yes, but 12 months or more of full-time CPT makes you ineligible for OPT at that degree level. Part-time CPT does not affect OPT eligibility.

How long is OPT?

Generally up to 12 months per degree level, with a possible 24-month STEM OPT extension for eligible STEM degrees.

Related Guides

Official Resources

Rules and fees change often. Always confirm the latest requirements with official sources and with the Designated School Official (DSO) at your university.

Are you planning to use CPT, OPT, or both during your studies?