OPT or CPT: Complete Guide for F-1 Students in the United States

For thousands of international students enrolled in or planning to pursue a degree in the United States on an F-1 visa, the choice between Optional Practical Training (OPT) and Curricular Practical Training (CPT) is one of the most consequential decisions of the academic experience. Both authorizations allow legal employment in the country, but they follow different rules, and using the wrong option can jeopardize lawful status and even derail future transitions to work visas.

Despite their similar names, OPT and CPT are not competing programs: they were designed by the Department of Homeland Security (DHS) to cover different stages of a student’s journey. Understanding when each one applies, what the time limits are, and how the combination affects visas such as the H-1B is the first step toward making the most of F-1 status.

This guide brings together, in plain language, the updated eligibility criteria, step-by-step application instructions, fees current as of 2026, and the most common mistakes international students make when alternating between the two programs.

What CPT and OPT Are

The CPT is a work authorization tied directly to the academic curriculum. It only exists when the university offers internships, required practicums, cooperative education projects, or other forms of professional experience integrated into the course of study. The authorization is granted directly by the institution’s Designated School Official (DSO), without involving USCIS, and is recorded on page 2 of the I-20 form.

OPT, on the other hand, is a temporary work authorization linked to the student’s primary field of study, but it does not need to be part of the curriculum. Unlike CPT, OPT requires a formal petition to the U.S. Citizenship and Immigration Services (USCIS), payment of a filing fee, and the issuance of a physical document called the Employment Authorization Document (EAD).

Eligibility Requirements

For either program, the student must be in valid F-1 status, enrolled full-time at a school certified under the SEVP program, and have completed at least one full academic year of study in the United States. Graduate programs may offer CPT before that threshold, provided the practical experience is an integral component of the program.

• CPT requires that the internship or practical experience be directly connected to the field of study and described as a required curricular component in the course catalog.
• OPT requires that the employment have a clear relationship to the primary field of study, but does not require any curricular obligation.
• Students who accumulate 12 months or more of full-time CPT lose all eligibility for OPT at the same educational level.

Duration and Usage Windows

CPT has no overall legal time limit, but extended full-time use can invalidate subsequent OPT. It may only be used before graduation and always within an active enrollment period.

Standard OPT provides up to 12 months of authorization per academic level. It can be used in pre-completion mode (during the program, typically part-time) or post-completion mode (after graduation, full-time). Each hour of full-time pre-completion OPT is deducted from the balance available for post-completion OPT.

Students who graduate in STEM fields recognized by DHS may apply for an additional 24-month extension, for a total of up to 36 months of post-graduation OPT. The extension requires that the employer be enrolled in E-Verify and that the student submit Form I-983 with a formal training plan.

Application Process

The path to CPT begins within the university itself. The student presents the DSO with an internship offer letter, demonstrates that the position is connected to the curriculum, and receives an updated I-20 authorizing the work. There is no USCIS fee and no waiting for a federal document.

OPT follows a longer and more bureaucratic process:

1. Request a DSO recommendation; the DSO records the request in SEVIS and issues a new I-20.
2. Complete Form I-765 (Application for Employment Authorization) using the correct eligibility category, typically (c)(3)(A), (B), or (C), depending on the type of OPT requested.
3. Gather copies of the passport, prior visas, I-94, U.S.-standard passport photos, and the I-20 with the OPT recommendation.
4. Pay the USCIS filing fee, which in 2026 is USD 520 (paper filing) or USD 470 (online filing), per the fee schedule updated after the 2024 adjustment.
5. Wait for the EAD to be issued, which typically takes between three and five months, and may vary depending on the workload at each service center.

The application may be filed up to 90 days before the program end date and up to 60 days after, still within the grace period. Working before the start date printed on the EAD constitutes unauthorized employment and breaks F-1 status.

Key Differences

AspectCPTOPTAuthorization issued byUniversity DSOUSCIS, via EADFederal feeNo feeUSD 470 to USD 520When it can be usedBefore graduationBefore or after graduationCurricular connectionRequiredRelationship to field onlyMaximum durationNo limit, but 12 full-time months cancel OPT eligibility12 months, plus 24-month STEM extensionChange of employerRequires new DSO authorizationPermitted without a new petition, within the field

Connection to Work Visas

OPT serves as a strategic bridge to work visas. During the authorization period, the employer can enter the student in the annual H-1B lottery, with the benefit of cap-gap protection: if the H-1B petition is approved, the F-1 status and EAD are automatically extended through October 1 of the following fiscal year, preventing any interruption of work authorization.

For profiles in research, extraordinary ability, or entrepreneurship, OPT also helps build a U.S. professional track record that is useful for future petitions under EB-1, EB-2 NIW, and O-1. In contrast, poorly documented CPT lacking solid curricular evidence can be challenged at consular interviews and in adjustment of status applications.

Program Obligations

• Report to the DSO, within 10 days, any change of address, employer, work schedule, or employment status.
• Do not accumulate more than 90 days of unemployment during standard OPT; the combined limit rises to 150 days during the STEM extension.
• Maintain employment directly related to the field of study declared in SEVIS.
• Under STEM OPT, fulfill the training plan described in the I-983 and participate in all required progress evaluations.

Common Mistakes to Avoid

Many students lose eligibility by accepting full-time CPT without realizing that accumulating 12 months eliminates OPT. Others apply for OPT outside the 90-day window before the program end date and end up without valid authorization at the time of graduation. Some begin working before the EAD start date, constituting unauthorized employment, a violation that can block future visas and even lead to a finding of inadmissibility.

Another sensitive point is the definition of work in the field of study. USCIS may request a written explanation during the STEM renewal or in change-of-status applications, and generic job descriptions tend to trigger a Request for Evidence (RFE).

Making the most of CPT and OPT requires planning from the very first semester. Academic calendar, internship availability, STEM extension plans, and the prospect of H-1B sponsorship all need to be factored into the same equation, and the university’s international student office is the official channel for validating each step before it is taken.

About the author

Victoria Harper

Editor-in-Chief

Meet the author

As a journalist and lead editor at Visto n’ Visa, Victoria helps ensure that immigration topics are covered in a clear, trustworthy, and easy-to-understand way. Her focus is on delivering useful, human, and relevant content for people exploring new paths abroad.