Legal Internships for Graduate Students in North America: U.S. CPT, OPT, and Canada's 2026 Co-op Program Updates

When pursuing a master's degree in North America, an internship is practically a required step for job hunting. However, whether international students can intern, when they can do so, and what procedures are required are all determined by immigration rules: making a mistake could cost you an internship opportunity or, worse, jeopardize your student status. Based on official information from the U.S. Department of Homeland Security and Immigration, Refugees and Citizenship Canada (IRCC), this article clarifies the pathways for legal internships during graduate studies in the U.S. and Canada. Canada also recently simplified its internship procedures in April 2026, which will be covered as well.

U.S.: Three Ways F-1 Students Can Work

1. On-Campus Employment

F-1 students can work on campus, up to 20 hours per week during the academic term. On-campus employment does not require an additional work permit, but these positions are typically teaching assistants, library, or cafeteria roles, which are different from professional internships.

2. CPT: Curricular Practical Training

Curricular Practical Training (CPT) is the primary way to do off-campus internships while studying. According to the DHS:

• The internship must be an integral part of the curriculum, such as a required internship or practicum, provided by the employer and the school through a cooperative agreement;
• It must be approved by the school's Designated School Official (DSO), who will confirm that the internship is directly related to your major and an essential part of the curriculum;
• A signed cooperative agreement or offer letter from the employer is required;
• Generally, you must have been enrolled full-time for one full academic year before applying; except for graduate programs that require earlier internships as part of the curriculum;
• 20 hours or less per week is considered part-time CPT, and more than 20 hours is considered full-time CPT.

There is one crucial rule to remember: accumulating 12 months of full-time CPT will make you ineligible for OPT. Part-time CPT does not affect this. Therefore, if you plan to work in the U.S. using OPT after graduation, keep your full-time CPT during your studies under 12 months.

Specific CPT arrangements can vary significantly across different schools and programs, such as when you can start or whether you need to take an internship credit course. You can clarify the CPT arrangements for a program when selecting schools.

3. OPT: Pre- or Post-Completion Internships

• Each higher degree level grants 12 months of OPT, which can be used before graduation (part-time only during the academic term) or after graduation;
• For post-completion OPT, the start date must be within 60 days after the program ends; cumulative unemployment cannot exceed 90 days;
• Eligible STEM majors can also apply for a 24-month STEM OPT extension.

Note that the new "fixed period of admission" rule released by the U.S. Department of Homeland Security in July 2026 is currently paused by a federal court and the original rules still apply; if it ultimately takes effect, doing OPT may require an additional extension application, and graduate students will not be able to change majors during their studies (see the article on U.S. F-1 visas for details).

Canada: No Separate Work Permit Required for Internships from April 2026

According to the latest guidelines from IRCC, starting April 1, 2026, international students enrolled in post-secondary programs no longer need to apply for a co-op work permit to participate in required internships (co-ops, internships, practicums, etc.). Those who already hold a co-op work permit can continue to use it until it expires. Secondary school students still require a co-op work permit.

Not needing a permit does not mean there are no conditions. To participate in a curricular internship, you must meet all of the following:

• The internship is essential to complete your program of study, with a letter of confirmation from your school;
• Your study permit includes the condition allowing you to work on campus;
• You hold a valid study permit (or have applied for an extension before it expired);
• You are a full-time student at a Designated Learning Institution (DLI);
• The internship portion does not exceed 50% of the total program.

Students enrolled in English or French language courses, general interest courses, or preparatory courses for other programs cannot participate in curricular internships. You must also stop your internship on the day you stop studying full-time (with exceptions for the final semester, etc.).

Two practical reminders:

1. Check the conditions on your study permit first. If you meet the requirements but your study permit does not include the condition allowing you to work, you must apply to add it for free first; otherwise, you cannot work or apply for a Social Insurance Number (SIN).
2. Get your Social Insurance Number. You need a SIN to work in Canada, and the application also requires the above conditions to be printed on your study permit.

In addition, apart from curricular internships, students in Canada can also work part-time off-campus during the academic term for up to 24 hours per week, with no hour limits during scheduled breaks.

How to Plan Your Graduate Internships

• When selecting schools: Ask clearly if the program includes a co-op or internship component and whether it is a mandatory part of the curriculum—this directly determines your eligibility for CPT (U.S.) or curricular internships (Canada).
• After enrollment: Communicate with the school's international student office and career development center as early as possible to understand the application process and timeline.
• After receiving an internship offer: Complete all approval procedures before starting work. In the U.S., CPT must be approved by the school first; in Canada, ensure the conditions on your study permit and your SIN are ready.
• Plan for after graduation: In the U.S., ensure your full-time CPT does not reach 12 months; in Canada, you can only get a Post-Graduation Work Permit (PGWP) once in your lifetime, so plan your program carefully before applying (see the article on Canadian study permits for details).

Final Thoughts

Internships during graduate studies are a crucial step in bridging school and work, but for international students, "interning legally" is just as important as "finding an internship." Clarifying the rules of your host country and your specific program before seeking an internship can help you avoid many unnecessary risks.

If you are planning your master's applications in North America, want to learn about the internship arrangements of different programs in advance, or need guidance on internship job hunting, feel free to chat with our counselors.

Verification note: The U.S. on-campus employment, CPT, and OPT rules in this article were verified against the U.S. Department of Homeland Security's "Study in the States" website on September 26, 2026; the new regulations, eligibility conditions, and off-campus work hours for curricular internships in Canada were verified against the IRCC website (the curricular internship page was updated on May 1, 2026). Specific requirements are subject to the guidelines from your school's international student office; policies may change, so please refer to the latest official information.

References:

• DHS Study in the States: Working in the United States (On-Campus Employment)
• DHS Study in the States: F-1 Curricular Practical Training (CPT)
• DHS Study in the States: F-1 Optional Practical Training (OPT)
• IRCC: Work in a student work placement (April 2026 New Regulations)
• IRCC: Work off campus