Do weekends and holidays count toward the 90 days?

Yes. The unemployment counter uses calendar days, not business days. A Saturday without qualifying employment counts the same as a Tuesday. Holidays inside a period of employment do not count because you are still considered employed. Holidays during a gap between jobs do count.

Does travel outside the United States count as unemployment?

Usually yes. Time abroad counts unless you are on employer-authorized leave while still employed or your travel is part of your employment, such as a business trip. Leisure travel during a job gap keeps the clock running. Check your I-94 arrival and departure record to confirm your travel dates match what SEVIS shows.

Is the 150-day cap an extra 150 days on top of the 90?

No. The 150 days is aggregate across the full post-completion OPT plus STEM OPT extension period. If you used 40 days during post-completion OPT, you have 110 days left on STEM OPT, not 150.

Does a job offer letter stop the clock?

No. Only actual employment stops the counter. You must start working (and report it in SEVIS) for unemployment days to pause. A signed offer with a later start date means the days between now and your start date still count.

Can I work part-time to stop the clock?

Only if your hours meet the 20-per-week minimum, either at one job or by combining multiple positions. A single 15-hour-per-week job does not stop the counter. Two 12-hour positions at qualifying employers do, as long as each is related to your field.

What happens if I exceed 90 days on STEM OPT specifically?

If you have the 24-month extension, your cap is 150 total days across both phases, not 90. But if you exhaust 90 during post-completion OPT and exhaust the remaining 60 on STEM, the 151st day puts you out of status. You do not get a 60-day grace period for that status violation, and the case becomes urgent because SEVIS termination may follow; current official guidance does not support a blanket statement that SEVIS will automatically terminate immediately upon day 151.

Does the 180-day STEM OPT auto-extension stop the unemployment clock?

No. If you timely file your STEM OPT I-765, 8 CFR § 274a.12(b)(6)(iv) gives you up to 180 days of continued work authorization while the application is pending. That rule preserves your ability to work, but if you are not actually working, those 180 days count toward your 150-day unemployment cap.

Does my DSO track my unemployment days?

No. Your DSO is a resource for advising, but the counter in SEVIS is tied to employer data you report. If you do not report a job, SEVIS treats you as unemployed. Check the SEVP Portal regularly. If your counter looks wrong, flag it with your DSO and update your employer records.

I-765GuideMay 13, 2026

OPT Unemployment Rules: The 90-Day and 150-Day Limits Explained

Written byMichal

F-1 students get 90 days of unemployment on post-completion OPT and 150 aggregate days with the STEM OPT extension. Here is how the clock works, what counts as employment, and what to do as you approach the limit.

F-1 students on OPT have a hard ceiling on days without qualifying work. Cross it and SEVP can terminate your SEVIS record without warning.

The 90-day and 150-day OPT unemployment limits live in a single sentence of federal regulation, and most commercial guides get the math wrong. Post-completion OPT gives you 90 days. Moving to the STEM OPT extension raises the cap to 150 days, but only in the aggregate. Days you already burned on post-completion OPT count toward that 150. This guide walks through how the rule actually works in 2026, how the clock is counted, what qualifies as employment, and what to do when your day count is climbing. If you are earlier in the process, our complete guide to the OPT application covers filing basics. For day-to-day case tracking, see 5 ways to check your EAD application status.

How the 90-day and 150-day OPT unemployment rules actually work

The rule sits at 8 CFR § 214.2(f)(10)(ii)(E). In plain English: during post-completion OPT your F-1 status depends on working. You may not accrue more than 90 aggregate days of unemployment during that period. If you get a 24-month STEM OPT extension, the cap rises to 150 total days of unemployment across the full OPT period, meaning post-completion OPT plus the STEM extension combined.

That word "aggregate" is where most people trip up. The 150-day cap is not a fresh allowance of 150 days that resets when STEM OPT begins. It is a ceiling that includes whatever you already used. Spend 60 days unemployed on post-completion OPT, move to STEM, and you have 90 days left, not 150. DHS confirms this on the Study in the States STEM OPT page: the 150 days "includes any of the remaining 90 days of unemployment allotted from the standard post-completion OPT."

The counters do not reset between phases at the same degree level. They do reset if you earn a higher-level degree and start a new OPT period, because that is a fresh F-1 benefit.

When the clock starts and when it keeps ticking

For post-completion OPT, the clock starts on the Actual OPT Start Date on your Employment Authorization Document (EAD). Not the approval date, not your program end date, and not the day your card shows up in the mail. For STEM OPT, SEVIS uses the Actual STEM OPT Start Date, which is the day after post-completion OPT ends, even if the USCIS-approved start date on the EAD is later. If the card arrives after the applicable actual start date, those days can still count as unemployment.

Days are calendar days. Weekends and federal holidays count the same as weekdays. If you are employed during a given period, holidays inside that employment do not count, but gaps between jobs do. SEVP removed earlier 10-day grace carve-outs in its 2010 guidance.

Time outside the United States counts too, with two narrow exceptions: employer-authorized leave while you remain employed, and travel that is itself part of your employment. Leisure travel during an unemployment gap keeps the clock running. Cap-gap does not pause counting either. If your H-1B change-of-status petition is pending during the cap-gap extension and you are not working, those days still accrue toward 90 or 150. USCIS may require biometrics in some I-765 cases, and missing a required appointment can delay adjudication, so respond promptly to any USCIS appointment notice and reschedule if necessary.

What counts as employment: initial OPT vs. STEM OPT

The two phases of OPT have materially different employment rules. A lot of commercial sites gloss over this and create real risk for STEM students who assume what worked on initial OPT still works on the extension.

For post-completion OPT, qualifying employment is broader. Paid W-2 work at 20 or more hours per week and directly related to your major stops the clock. So do unpaid internships that comply with Fair Labor Standards Act rules, volunteer work at nonprofits (20 or more hours, related to your field), self-employment with a business license and active engagement, 1099 contract work, and multiple part-time jobs whose hours aggregate to 20 per week. Each needs documentation: offer letters, pay stubs, employer verification letters, contracts, hours logs, or business formation records. SEVP's Policy Guidance 1004-03 is the controlling document.

STEM OPT is narrower and stricter. Volunteer or unpaid work does not qualify, and sole proprietorship or independent-contractor style self-employment generally does not qualify because STEM OPT requires a bona fide employer-employee relationship, an E-Verify-enrolled employer, and a signed Form I-983. A startup may qualify only if all STEM OPT requirements are met and the student is a bona fide employee of the employer signing the Form I-983. Every employer must be enrolled in E-Verify with a valid Company ID, and every employment relationship requires a signed Form I-983 Training Plan. The Form I-983 lays out learning objectives, supervision, and the 20-hour minimum at 8 CFR § 214.2(f)(10)(ii)(C)(8). Multiple employers can combine, but each one needs its own I-983 and each must be E-Verify compliant.

Part-time work under 20 hours per week does not stop the clock under either phase. Neither does a job offer where you have not actually started. For a broader comparison of work-authorized student statuses, see our F-1 vs. J-1 visa guide.

Reporting and the 10-day rule

You are responsible for tracking unemployment days and keeping your DSO/SEVIS record accurate. F-1 students on OPT must report changes required by the regulations and SEVP guidance on time: address and legal-name changes generally within 10 days, and OPT/STEM OPT employment updates under the applicable OPT reporting rules.

The student-facing SEVP Portal is a useful place to add or update employer information, but the official unemployment counter is in SEVIS, where DSOs can view days allowed, accrued, and remaining. STEM OPT students also file 6-month, 12-month, 18-month, and 24-month validation reports. Missing those deadlines can trigger a SEVIS 'Failure to Report While on OPT' termination workflow.

The day-by-day playbook: what to do by day 30, 60, 80, and 90

Day 1 through 30. Confirm the Actual OPT Start Date on your EAD and set calendar reminders for day 60 and day 85. Start logging any qualifying employment with dates, hours, and employer details. If you have a Social Security card question or need to confirm your A-number on any forms, handle it now.

Day 31 through 60. If you are still job hunting, your search should be full-time. For initial OPT only, look for qualifying volunteer or unpaid internship positions (20+ hours, field-related, FLSA-compliant). These count and buy time while paid offers land.

Day 61 through 80. Build a Plan B. Options include filing I-539 to change status to B-2 visitor before day 90, transferring to a new academic program at a SEVP-approved school, or preparing to depart the United States. Start early, since each path has filing steps. USCIS stopped accepting checks in October 2025, so review your payment options in advance.

Day 81 through 89. Execute Plan B. If you are filing I-539 for B-2, submit before day 90 to preserve timely-filed status. Document everything: emails, filing receipts, payment confirmations. If you land a qualifying job in this window, report it to SEVIS within 10 days and confirm it appears in your SEVP Portal.

Day 90 and beyond. There is no 60-day grace period after you exceed the unemployment limit. Once you exceed the allowed unemployment days, you are out of status. SEVIS termination timing can vary, so do not assume you have an extra 15 days. If you get there, talk to an immigration attorney immediately about reinstatement or departure.

What happens if you exceed the 90-day or 150-day OPT unemployment limit

Going over the cap is a status violation under 8 CFR § 214.2(f)(10)(ii)(E). A DSO or government official may terminate the SEVIS record for failure to maintain status, but current SEVIS guidance does not say that unemployment-limit violations auto-terminate within about 15 days. Once the record is terminated for exceeding the unemployment limit, you are out of status.

Importantly, 8 CFR § 214.2(f)(5)(iv) denies the 60-day grace period to students who failed to maintain status. The departure window collapses to the day SEVP terminates.

Downstream effects are real. Future H-1B petitions, green card filings, and consular visa applications can surface the unemployment violation years later. Whether a status violation automatically triggers unlawful presence accrual is a separate question that was litigated in Guilford College v. McAleenan (2020), which blocked the 2018 USCIS memo that tried to automate that result. The cautious read: treat any overstay as serious and time-sensitive, and talk to an attorney before filing anything else.

Enforcement is not theoretical. In mid-May 2025, NAFSA reported that some OPT students received SEVP notices about missing employer information and possible unemployment violations, warning that they had 15 days to update SEVIS records. We could not verify from a current official ICE/SEVP source that the same notice campaign has continued into 2026.

Frequently Asked Questions

Do weekends and holidays count toward the 90 days?: Yes. The unemployment counter uses calendar days, not business days. A Saturday without qualifying employment counts the same as a Tuesday. Holidays inside a period of employment do not count because you are still considered employed. Holidays during a gap between jobs do count.
Does travel outside the United States count as unemployment?: Usually yes. Time abroad counts unless you are on employer-authorized leave while still employed or your travel is part of your employment, such as a business trip. Leisure travel during a job gap keeps the clock running. Check your I-94 arrival and departure record to confirm your travel dates match what SEVIS shows.
Is the 150-day cap an extra 150 days on top of the 90?: No. The 150 days is aggregate across the full post-completion OPT plus STEM OPT extension period. If you used 40 days during post-completion OPT, you have 110 days left on STEM OPT, not 150.
Does a job offer letter stop the clock?: No. Only actual employment stops the counter. You must start working (and report it in SEVIS) for unemployment days to pause. A signed offer with a later start date means the days between now and your start date still count.
Can I work part-time to stop the clock?: Only if your hours meet the 20-per-week minimum, either at one job or by combining multiple positions. A single 15-hour-per-week job does not stop the counter. Two 12-hour positions at qualifying employers do, as long as each is related to your field.
What happens if I exceed 90 days on STEM OPT specifically?: If you have the 24-month extension, your cap is 150 total days across both phases, not 90. But if you exhaust 90 during post-completion OPT and exhaust the remaining 60 on STEM, the 151st day puts you out of status. You do not get a 60-day grace period for that status violation, and the case becomes urgent because SEVIS termination may follow; current official guidance does not support a blanket statement that SEVIS will automatically terminate immediately upon day 151.
Does the 180-day STEM OPT auto-extension stop the unemployment clock?: No. If you timely file your STEM OPT I-765, 8 CFR § 274a.12(b)(6)(iv) gives you up to 180 days of continued work authorization while the application is pending. That rule preserves your ability to work, but if you are not actually working, those 180 days count toward your 150-day unemployment cap.
Does my DSO track my unemployment days?: No. Your DSO is a resource for advising, but the counter in SEVIS is tied to employer data you report. If you do not report a job, SEVIS treats you as unemployed. Check the SEVP Portal regularly. If your counter looks wrong, flag it with your DSO and update your employer records.

Official Sources

This guide is based on current USCIS, ICE/SEVP, and federal regulatory sources. All information was verified against these official sources as of April 2026.

USCIS Resources

ICE / SEVP / DHS

Federal Regulations

8 CFR § 214.2(f) (F-1 status, OPT rules, and unemployment limits)
8 CFR § 274a.12(b)(6)(iv) (STEM OPT 180-day automatic extension)

Federal Register Rules

2016 STEM OPT Final Rule, 81 FR 13040 (establishes the 90/150 unemployment framework)

Immigration law changes frequently. We monitor USCIS policy updates and revise this guide when regulations change.