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USA OPT and STEM OPT Guide for F-1 Students 2026

📅 June 2026 ⏱ 7 min read 📅 Apply 90 days early 🔬 +24 months for STEM
International graduate student with diploma in front of US university building with American flag visible

OPT is one of the most important aspects of studying in the US — and one of the most mishandled. USCIS processing times of 3–5 months mean students who wait until graduation to apply spend months without authorisation to work, burning through their 12-month window. The students who handle OPT correctly apply 90 days before their programme ends and have their Employment Authorisation Document (EAD) in hand around graduation day.

The single most important rule: contact your DSO (Designated School Official) no later than 4 months before your graduation date. The OPT process takes time you won't have if you wait until you receive your diploma.

What OPT is — and what it isn't

Optional Practical Training (OPT) is a period of authorised temporary employment directly related to your major area of study. It's not an employer-specific work permit — once you have your EAD, you can work for any employer in a role that relates to your field of study. You can also be self-employed or do consulting work, as long as it's related to your degree.

Standard OPT gives you 12 months. If you have a STEM degree (science, technology, engineering, mathematics), you can apply for a 24-month extension — giving you 36 months total. The STEM extension requires your employer to be enrolled in E-Verify.

What Is the OPT Application Timeline?

4–5 mo before graduation
Contact your DSO. Tell them you want to apply for post-completion OPT. They'll issue a new I-20 with OPT recommendation. You cannot apply to USCIS without this updated I-20.
90 days before graduation
Submit OPT application to USCIS. You cannot apply earlier than 90 days before your programme end date. File Form I-765 with your I-20, passport, photos, and $520 fee. Track your application online.
3–5 months processing
Wait for EAD card. USCIS mails your Employment Authorisation Document. If you applied 90 days early, this may arrive around your graduation date. If you applied late, you'll have a gap before you can work.
12 months OPT
Work in your field. You can work for any employer in a role related to your degree. You have up to 90 days of unemployment permitted — exceeding this terminates your OPT.
STEM Extension (if eligible)
Apply 90 days before standard OPT expires. Submit new I-765 + I-983 Training Plan + employer E-Verify confirmation. Adds 24 months. Employer must participate in E-Verify.
Total: up to 36 months
36 months total for STEM graduates. Use this time to find an employer willing to sponsor H-1B. H-1B lottery is annual (April); your employer must apply by March of the year you want the visa.

What Is the 90-Day Unemployment Rule?

During standard OPT, you're allowed a maximum of 90 days of unemployment (days when you're not working in a qualifying role). During the 24-month STEM extension, the limit drops to 150 days cumulative (including the 90 from standard OPT).

This isn't just administrative — exceeding unemployment limits terminates your OPT and puts your F-1 status at risk. Track your unemployment days carefully. Report changes in employment to your DSO within 10 days. If you lose a job during OPT, start the countdown immediately and treat 90 days as a hard deadline.

STEM OPT: what your employer must do

The STEM OPT extension has employer requirements that go beyond standard OPT. Your employer must be enrolled in E-Verify, complete a Training Plan (Form I-983) with you, provide a mentoring programme, and report your progress to your DSO. If your employer can't meet these requirements — many startups and small businesses can't or won't — you can't use the STEM extension at that employer.

FreeStudentTools recommends asking potential employers about their E-Verify status and STEM OPT experience before accepting an offer. A company that has hired F-1 students before and has HR familiar with the process is significantly less risky than one that hasn't. Large companies, universities, hospitals, and tech companies are typically well-versed in this.

The counterintuitive advice: take a slightly lower-paying offer at an E-Verify employer with experience in sponsoring H-1B over a higher-paying offer at a company that's never done it. The salary difference in month 1 matters less than whether you have a path to stay in the US past your 36 months of OPT. Companies with a track record of H-1B sponsorship are the ones who actually go through with it.

Beyond OPT: the H-1B path

OPT is a bridge, not a destination. The next step for most F-1 graduates is the H-1B (specialty occupation) visa. H-1B is subject to an annual lottery (65,000 regular cap + 20,000 master's cap). The lottery runs in April for fiscal year starting October. Your employer must file the petition in March.

The H-1B lottery approval rate has ranged from 26–40% in recent years — it's not guaranteed. This is why STEM OPT's 36 months matters: it gives you three lottery opportunities instead of one, significantly improving your chances of obtaining H-1B.

For comparison with other countries' post-study work pathways, see our guides on the UK Graduate Route, Canada PGWP, and Germany post-study visa.

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