OPT vs CPT for Indian Students in the US: What's the Difference and Which to Use (2026)

OPT vs CPT is the first work question most Indian students on an F-1 visa run into. Both let you work off campus in the US, but they are authorised by different people, used at different points in your degree, and one can quietly cancel the other. Here is how each works, how they interact, and what changed for F-1 students in 2026.

CPT: Work That Is Part of Your Degree

Curricular Practical Training (CPT) is for internships, co-ops and practicums that are an integral part of your curriculum — either a required component of the program or a credit-bearing course. It is approved by your university's Designated School Official (DSO), not by USCIS, and shows up on page 2 of your I-20 with the employer name and exact dates.

• When: usually after one full academic year in status. Some graduate programs that require practical training from the start allow it in the first semester.
• Hours: part-time (20 hours/week or less) during term, full-time during summer and winter breaks.
• Cost and speed: no USCIS fee; schools typically process it in days to a couple of weeks.
• Catch: it is tied to one employer and one set of dates. You need the job offer before you apply, and you cannot start a day early.

The typical use for an Indian MS student: a summer internship between year one and year two, authorised as full-time CPT.

OPT: Work Related to Your Field, Usually After Graduation

Optional Practical Training (OPT) is 12 months of work authorisation per degree level, approved by USCIS on Form I-765. You get an Employment Authorization Document (EAD) and can work for any employer — or several — as long as the job is related to your field of study. You do not need a job offer to apply.

• Pre-completion OPT: used during your degree. Every month used is deducted from your 12 months, so most students avoid it.
• Post-completion OPT: the one almost everyone uses. You can file up to 90 days before your program end date and up to 60 days after, and within 30 days of your DSO's recommendation in SEVIS.
• Fee: $470 if filed online, $520 on paper (as of October 2026 — verify on uscis.gov before filing).
• Unemployment limit: 90 days in total across the 12 months.

If your degree is on the DHS STEM Designated Degree list, you can add a 24-month STEM OPT extension — up to 36 months in total. The employer must be enrolled in E-Verify and sign a training plan (Form I-983), and your unemployment allowance rises to 150 days. This is why most Indian students in CS, data science and engineering pick STEM-designated programs.

The Rule That Catches Students Out

If you use 12 months or more of full-time CPT, you lose OPT eligibility for that degree. Part-time CPT does not count towards this, and neither does full-time CPT under 12 months. A single summer internship is nowhere near the limit — the risk is students stacking full-time co-ops across multiple terms.

The second trap is Day 1 CPT: programs, often at smaller universities, that authorise CPT from your first semester so you can keep working full-time. It is legal when the program genuinely requires it, but these schools draw scrutiny. Consular officers, and later USCIS during H-1B or green card processing, can ask whether your study was real. If a program's main selling point is "work from day one", treat that as a warning, not a feature.

What Changed in 2026

On 17 July 2026, DHS published a final rule replacing "duration of status" with fixed admission periods (maximum four years). For OPT it would have cut the post-graduation filing window from 60 days to 30, required a separate Form I-539 extension alongside the I-765, and shortened the post-OPT grace period to 30 days. On 14 September 2026, a federal court in Massachusetts blocked the rule nationwide, one day before it was due to take effect. As of October 2026, the old rules above still apply, but the case is ongoing and the rule could return.

Separately, DHS has confirmed it is re-evaluating OPT and STEM OPT, though no proposed rule has been published yet. One piece of good news: under USCIS guidance from October 2025, moving from F-1 (including OPT) to H-1B inside the US is generally exempt from the new $100,000 H-1B fee. That makes OPT the most realistic bridge to a US job.

Rules here are as of October 2026 — check with your DSO and on uscis.gov before you file anything.

Which Should You Use?

• Use CPT if: you have a specific internship or co-op offer during your degree and your program gives credit for it.
• Save OPT for after graduation: unless you have a strong reason, keep all 12 months for post-completion, when you have the most job options.
• Choose a STEM-designated program if: you want US work experience beyond one year — the extra 24 months matter more than almost any ranking difference.
• Avoid Day 1 CPT programs if: you plan to apply for an H-1B or green card later.

If you are still deciding whether the US is right for you, read our honest take on studying in the USA in 2026 and how the US compares with Canada and the UK on post-study work. Before your visa interview, check the F1 visa mistakes Indian students commonly make.

Plan Your US Work Options Before You Pick a University

Whether you can do CPT, and whether you get 12 or 36 months of OPT, is decided the moment you choose a program — not when you graduate. Book a consultation with Goodwind and we will shortlist US programs that fit your field, budget and work plans before you apply.