The purpose of a work permit in the US is to let the federal government decide who is allowed to earn a paycheck inside the country, on what terms, and with what oversight. The document most people mean by “work permit” is the Employment Authorization Document (EAD), issued by U.S. Citizenship and Immigration Services. It does four things at once: it manages who joins the labor force, it screens applicants for security concerns, it pulls workers into the tax and payroll system, and it gives them the legal footing to be protected by wage and safety laws. For the person holding one, it is simply proof that working is allowed.
Why the Government Issues Work Permits
The system exists to give federal authorities a lever over the labor market. Permits let the government channel foreign workers into roles where demand outpaces the domestic supply of qualified candidates, while reducing direct competition for jobs local workers can fill. That balancing act is the reason permit rules are tied to eligibility categories, expiration dates, and, in some cases, a specific employer.
Permits also function as a worker-protection tool. Because a permit ties an individual to a documented, legal employment relationship, it creates a paper trail. Employers who hire permitted workers are subject to wage and safety laws in a way that becomes much harder to enforce when employment happens off the books. For the worker, legal status means access to workplace protections and the ability to report violations without the risk of deportation hanging over the complaint.
There is a security-screening function built in. Every EAD application goes through background checks, and the process gives immigration authorities a window into who is in the country and what they are doing. And because permitted workers are paid through legitimate payroll channels, the government collects income taxes and payroll contributions it would otherwise miss.
What a Work Permit Actually Authorizes
The scope of an EAD depends on the eligibility category printed on the card, and this is the part that matters most in day-to-day life. Many categories grant what is called open-market employment authorization, meaning you can work for any employer in any job. This covers EADs issued for pending adjustment of status, pending asylum cases, and several other categories. If you hold one of these, switching jobs does not require a new work permit or employer sponsorship.
Other forms of work authorization are employer-specific. H-1B and L-1 visa holders can only work for the employer listed on their approved petition. Taking a second job or changing employers requires filing a new petition and getting it approved first. Federal regulations formalize this split by dividing work authorization into three groups: people authorized to work as a condition of their immigration status without needing an EAD (like lawful permanent residents), people authorized to work only for a specific employer, and people who must apply for an EAD before working at all.1eCFR. 8 CFR 274a.12 – Classes of Aliens Authorized to Accept Employment The category is what determines whether the permit gives you flexibility or ties you to one job.
A work visa and an EAD are not the same thing, though the terms often get used interchangeably. A work visa like an H-1B or O-1 is issued by a U.S. embassy or consulate and authorizes entry to the country for a specific job with a specific employer; the work authorization is baked into the visa. An EAD is issued by USCIS to people already in the United States whose status requires them to apply separately for permission to work.
Who Actually Needs an EAD
Not everyone working in the U.S. needs a separate work permit. Lawful permanent residents are authorized to work without restrictions, and visa categories like H-1B and L-1 carry work authorization inside the visa itself. The people who do need an EAD generally fall into a few groups.
Foreign Nationals With Pending Immigration Cases
If you have filed for asylum, applied to adjust your status to permanent resident, or hold a humanitarian designation like Temporary Protected Status, you generally need an EAD to work while your case is processed. The request is made on Form I-765.2U.S. Citizenship and Immigration Services. Employment Authorization Document Asylum applicants become eligible to apply 150 days after filing the asylum application, with the EAD typically issued around the 180-day mark, though delays are common.
Dependents of Certain Visa Holders
Spouses of some visa holders can work, but only after getting their own EAD. This includes certain H-4 spouses of H-1B workers who meet specific criteria, L-2 spouses of L-1 workers, and spouses of E-visa holders. The dependent visa itself does not carry work authorization.
International Students
F-1 students can work through Optional Practical Training in a job directly related to their field of study. Pre-completion OPT requires at least one full academic year of full-time enrollment; post-completion OPT is available after finishing the degree. In both cases the student files Form I-765 and cannot start working until USCIS approves the application and issues the EAD.3U.S. Citizenship and Immigration Services. Optional Practical Training (OPT) for F-1 Students STEM graduates may extend OPT for an additional 24 months if their employer participates in E-Verify.
One note on scope: the state “working papers” that many teenagers get before a first job are a separate system, tied to child labor laws rather than immigration status.4U.S. Department of Labor. Employment/Age Certificate They are not what people usually mean by a U.S. work permit.
Keeping Your Work Authorization Valid
An EAD has an expiration date, and working past it puts you into unauthorized-employment territory. USCIS recommends filing your renewal on Form I-765 well before your current card expires.
Until recently, people who filed timely renewals received an automatic extension of their existing EAD for up to 540 days while the renewal was pending. That safety net ended on October 30, 2025. USCIS published an interim final rule terminating automatic extensions for renewal applications filed on or after that date.5U.S. Citizenship and Immigration Services. Interim Final Rule Published to End the Practice of Automatically Extending Certain Employment The receipt notice for a renewal filed after that date explicitly states it cannot be used as evidence of employment authorization.
Limited exceptions exist. If you filed your renewal before October 30, 2025, and your EAD category was eligible, the automatic extension may still be valid. TPS-related EADs retain some extension protections through separate Federal Register notices.6U.S. Citizenship and Immigration Services. Automatic Employment Authorization Document (EAD) Extension For everyone else, if the renewal is not approved before the current EAD expires, there may be a gap during which working is not legal. Filing early has never mattered more.
What Happens If You Work Without One
The consequences of unauthorized employment reach both the worker and the employer, and they are what give the permit its practical purpose.
For the Worker
The most immediate risk is that working without authorization can bar you from adjusting to permanent resident status. Federal law prohibits adjustment for anyone who has accepted unauthorized employment, and the bar applies to work during any period of stay in the United States, not just the most recent entry. Leaving the country and returning does not reset the clock.7U.S. Citizenship and Immigration Services. USCIS Policy Manual Volume 7 Part B Chapter 6
Unauthorized work can also affect unlawful-presence calculations. Asylum applicants normally do not accrue unlawful presence while their application is pending, but that protection disappears if they work without authorization during that period.8Office of the Law Revision Counsel. 8 USC 1182 – Inadmissible Aliens Once unlawful presence triggers, it can lead to three-year or ten-year bars on reentry.
Some exceptions apply. Immediate relatives of U.S. citizens (spouses, parents, and unmarried children under 21) can adjust status even if they previously worked without authorization.9U.S. Citizenship and Immigration Services. USCIS Policy Manual Volume 7 Part B Chapter 8 – Inapplicability of Bars to Adjustment Relying on an exception you may not qualify for is a gamble most immigration attorneys would advise against.
For the Employer
Employers who knowingly hire or continue to employ unauthorized workers face escalating civil fines. The base statutory range starts at $250 to $2,000 per unauthorized worker for a first offense and climbs to $3,000 to $10,000 per worker for employers with multiple prior violations.10Office of the Law Revision Counsel. 8 USC 1324a – Unlawful Employment of Aliens Those amounts are adjusted annually for inflation and are substantially higher in practice. As of the most recent adjustment, first-offense fines for knowing hires start above $700 per worker and can exceed $28,000 per worker for repeat violators.
Criminal prosecution is also on the table. An employer engaged in a pattern or practice of hiring unauthorized workers can be fined up to $3,000 per worker and imprisoned for up to six months for the pattern itself. Separate federal statutes covering harboring or document fraud carry steeper penalties, including multi-year prison sentences. That enforcement backdrop is why every U.S. employer must complete Form I-9 for each new hire within three business days of the start date.11U.S. Citizenship and Immigration Services. Completing Section 2, Employer Review and Attestation The permit exists on the worker’s side; the I-9 is how the employer proves they checked it.