CPT vs OPT is one of the first questions international students search for, usually after hearing the terms used interchangeably. They are not the same. Each has a different approval process and different limits, and mixing them up can cost you work authorization or a future filing.
As of October 31, 2026, this guide explains how they differ, how one affects the other, and what changed this year.
- CPT must be an integral part of an established curriculum.
- CPT needs DSO authorization, not an application to USCIS.
- OPT requires a DSO recommendation, Form I-765 and an EAD.
- One year or more of full-time CPT makes you ineligible for post-completion OPT at that level.
- Students may apply for 12 months of OPT at each education level.
- You must have authorization before you start either one.
What is the basic difference?
Who authorizes it and why it exists.
| CPT | OPT | |
|---|---|---|
| What it is | Training that is part of your curriculum | Practical training related to your studies |
| Who authorizes | Your DSO, in SEVIS | USCIS, after a DSO recommendation |
| USCIS application | No | Yes, Form I-765 |
| Work document | Updated Form I-20 | EAD |
| When | Before your program end date | During or after your program |
| Hours | Part-time or full-time | 20 hours a week while school is in session for pre-completion; full-time allowed at other times |
| Limit | Full-time for a year or more removes post-completion OPT at that level | 12 months at each education level, plus STEM extension if eligible |
Both require permission first. Study in the States says "you must have proper authorization before beginning any practical training" (Study in the States, Training Opportunities).
What is CPT?
Training built into your degree. Study in the States describes it as "an alternative work/study, internship, cooperative education or other type of required practicum that a sponsoring employer offers through cooperative agreements with your college or university." It adds that "CPT is only available for F students when it is an integral part of an established curriculum."
USCIS explains the mechanics: "No application to USCIS for employment authorization or an Employment Authorization Document (EAD) (Form I-766) is required, but the student must request authorization for CPT from the student's Designated School Official (DSO)." CPT "occurs before the student's program end date" and "may be part-time or full-time" (USCIS Policy Manual, Vol. 2, Part F, Ch. 5).
Timing has a rule. "To qualify for CPT, you must have completed one full academic year of study at an SEVP-certified school, unless you are a graduate student whose program requires immediate CPT."
What is OPT?
Practical training tied to your field. Study in the States says it "directly relates to your program of study." There are two forms: "You can apply for OPT during your program of study, known as pre-completion OPT, or after you finish your program of study, known as post-completion OPT."
The steps differ from CPT (Study in the States, Training Opportunities):
- Ask your DSO for a recommendation, which is entered in SEVIS.
- File Form I-765 with USCIS.
- Wait for the EAD. "You cannot begin OPT until you receive authorization from USCIS."
For post-completion OPT, the form instructions say to "file Form I-765 up to 90 days before, but no later than 60 days after, your program end date" (USCIS, Instructions for Form I-765). The EAD code is (c)(3)(B). The 24-month STEM extension is (c)(3)(C). Our guide to STEM OPT covers that extension, and our guide to OPT unemployment days covers the limits on unemployment.
How does CPT affect OPT?
Mainly through the one-year rule. "An F-1 student who has received 1 year or more of full-time CPT is ineligible for post-completion OPT at the same educational level" (USCIS Policy Manual, Vol. 2, Part F, Ch. 5). Study in the States gives the same warning.
OPT time also adds up across its own stages. If you use pre-completion OPT, "the amount of time approved for pre-completion OPT is deducted from the post-completion OPT authorized period." And "OPT usage is calculated based on the period of OPT authorized," not on the days you actually worked.
So keep track of each CPT term and any pre-completion OPT. A DSO can add it up with you, but you are the one who will feel the consequences. For a master's student planning a big internship, this deserves a real conversation before the offer is accepted.
What changed in 2026?
Two developments to watch.
CPT guidance. Study in the States points to an "August 2026 Broadcast Message: Guidance for Designated School Officials regarding Curricular Practical Training." Our guide to the CPT guidance lawsuit explains that guidance and the challenge to it. If you are in a program that relies on CPT, including day-one programs, ask your DSO how your school is applying the guidance.
The proposed OPT fee. On October 8, 2026, DHS proposed large new fees tied to OPT recommendations. It is a proposal, and comments close on November 9, 2026. Our guide to the OPT fee proposal explains who would be billed. It does not change today's process, but watch for a final rule.
Can you start a business on CPT or OPT?
OPT, possibly. CPT is not designed for it. Study in the States says "the U.S. government considers starting your own business in the United States, also known as entrepreneurship, as work," so "you must qualify and apply for OPT." The business "must relate to your program of study." It also warns: "You cannot be your own employer for the purpose of the STEM OPT extension."
How do they fit with on-campus jobs?
They are separate. On-campus work is a different kind of permission for active F-1 students, and generally "you may not work more than 20 hours per week when school is in session" (Study in the States, Working in the United States). You need a Social Security number if you are paid, and the rule is the same across all of them: talk to your DSO first. The site warns that "if your DSO knows you are working without permission, they must report it through SEVIS."
What comes after CPT and OPT?
For many students, it is H-1B or another work category. If your OPT is ending and your H-1B start date is later, the cap-gap rule can bridge some situations; our guide to the H-1B cap-gap extension explains it. Other students look at O-1, or a green card if they have a strong enough record. The important thing is to think about your timing before your OPT runs out.
Can you do both at different times?
Yes, many students do. A common pattern is part-time CPT during a program, followed by post-completion OPT after graduation. Just keep the full-time CPT count under the one-year line for that degree level if you want to preserve post-completion OPT.
What this means for you
- Talk to your DSO before accepting any off-campus role.
- Track every CPT term and whether it was full-time.
- Do not start OPT work until you have the EAD and your start date has arrived.
- File OPT inside its window, starting up to 90 days before your program end date.
- Watch the CPT litigation and the OPT fee proposal.
Where to start
If you are an F-1 student thinking long term, our free evaluation at /evaluate/ checks whether EB-1A or the NIW fits your profile, and Frank, our AI assistant at /frank, helps you build the evidence. Petitions are reviewed and filed by our partner law firm, Lai & Turner.
Sources
All checked October 31, 2026.
- Study in the States, Training Opportunities. CPT; OPT; entrepreneurship.
- USCIS Policy Manual, Vol. 2, Part F, Ch. 5. CPT requirements; one-year rule; OPT usage.
- USCIS, Instructions for Form I-765. OPT filing windows; categories.
- Study in the States, Working in the United States. On-campus work; DSO reporting.
Frequently asked questions
What is the difference between CPT and OPT?
CPT is work that is an integral part of your curriculum, authorized by your school's designated school official before your program ends. OPT is practical training related to your field, recommended by your school and authorized by USCIS through Form I-765 and an EAD. It can be used before or after you finish, with post-completion OPT being the most common.
Does CPT affect OPT?
It can. USCIS and Study in the States say students who complete one year or more of full-time CPT are ineligible for post-completion OPT at the same educational level. Part-time CPT does not trigger that rule in the same way. Ask your designated school official to review your CPT history before you accept another full-time CPT role.
How long does OPT last?
You can apply for 12 months of OPT at each education level. STEM graduates may qualify for a 24-month extension. Pre-completion OPT time is deducted from post-completion time at the same level. USCIS calculates usage based on the authorized period, not on whether you worked each day. Unemployment limits apply during post-completion OPT.
Do I need an EAD for CPT?
No. The USCIS Policy Manual says no application to USCIS for employment authorization or an EAD is required for CPT, but you must request authorization from your designated school official. CPT then appears on an updated Form I-20. OPT is different and does require an approved EAD before you start work, and you need a Social Security number if you are paid.
Can I use CPT from day one?
Generally, you must complete one full academic year first. Study in the States gives an exception for graduate students whose program requires immediate CPT. Separately, August 2026 SEVP guidance took a narrower reading of CPT and is being challenged in court, so check with your school's DSO. Do not rely on old advice about day-one programs without checking.
Green Card Guide AI is not a law firm and this article is not legal advice. It describes evidence-building strategy in general terms; your attorney determines what belongs in your petition and how it's argued.
