US work visas — H-1B, L-1, O-1 and the rest

A US work visa is not a ticket to work—it is a permission to work for a specific employer. This fundamental difference shapes everything you need to know about employment-based immigration: the visa follows the job, not the person. If the job ends, the clock starts ticking.

How employer sponsorship works

Almost every US work visa is a petition-based visa. Your employer files a petition—typically Form I-129, Petition for a Nonimmigrant Worker—with US Citizenship and Immigration Services (USCIS). The employer is the petitioner; you are the beneficiary. Your employer must prove to the Department of Labor and USCIS that the job is legitimate, the wages are fair, and your skills match what the role requires.

This is different from visas you might sponsor for yourself (like the EB-1, extraordinary ability green card) or family-based immigration. For work visas, the company is your legal sponsor. That means the company pays most or all visa filing fees, must keep you employed, and must notify USCIS if you are laid off or leave. If sponsorship stops, your right to be in the United States is affected immediately.

Major work visa categories

H-1B: Specialty occupations and the annual lottery

The H-1B is the most common US work visa for skilled foreign workers. It is for roles in specialty occupations—jobs that require at least a bachelor's degree in a specific field. Software engineers, accountants, nurses, researchers, and many other professionals use H-1B sponsorship.

H-1B is subject to an annual cap. Congress authorizes 85,000 new H-1B visas per fiscal year: 65,000 under the regular cap and 20,000 for foreign nationals who hold a US master's degree or higher. Every year, demand far exceeds supply. When that happens, USCIS runs a random lottery among all registrations to select who may apply.

The lottery works in two stages. First, your employer registers you in an online system and pays a registration fee (currently $215 per beneficiary). If your registration is selected, your employer then files a full H-1B petition with supporting documents, paying additional fees. The base filing fee is around $460 for small employers or $780 for larger ones, plus training fees (the ACWIA fee of $750–$1,500 depending on employer size) and fraud prevention fees (around $500). You can also request premium processing for $2,965 to speed up adjudication to 15 business days.

Important recent change: A weighted lottery system now gives priority to higher-wage positions. If your employer offers a higher wage level (Level 3 or Level 4 wages as set by the Department of Labor), you receive multiple lottery entries, improving your odds. This favors specialized, well-paid roles over lower-wage positions.

Once approved, H-1B status is valid for three years and can be extended for up to six years total. During that time, you must remain employed by the sponsoring employer in the position for which you were approved. Changing employers requires a new H-1B petition and, if there are still available visas in the current fiscal year, may not require re-entering the lottery.

L-1: Intracompany transfers

The L-1 visa is for employees transferring within an international company structure. You must be moving from an overseas office of a parent company, subsidiary, branch, or affiliate to a related US office. The company must own or control at least 50 percent of both the foreign and US entities.

To qualify, you must have worked for the foreign company in an executive, managerial, or specialized knowledge role for at least one continuous year during the three years before transfer. Your overseas experience proves you know the company's operations and culture; the US employer wants to transfer that knowledge. The L-1A category is for executives and managers; the L-1B is for specialized knowledge workers.

L-1A holders can stay up to seven years; L-1B holders up to five years. Both can extend these periods. There is no annual cap, so processing is not subject to a lottery. Your employer files Form I-129 with USCIS. Processing typically takes several months, though premium processing (15 days for $1,225) is available.

An important advantage of L-1A status is a direct pathway to a green card under the EB-1C category (multinational manager/executive), which does not require PERM labor certification—a lengthy process required for most other employment green cards.

O-1: Extraordinary ability

The O-1 visa is for individuals with extraordinary ability in sciences, arts, education, business, athletics, or extraordinary achievement in motion picture and television. It is sometimes called the "genius visa" but is broader than that label suggests. Startup founders, senior researchers, engineers, and exceptional business leaders often qualify, not just celebrities or elite athletes.

"Extraordinary ability" means you are one of a small percentage who have risen to the very top of your field. To qualify, you must either: have won a major, internationally recognized award like the Nobel Prize, or meet at least three of eight evidentiary criteria set by USCIS. These criteria include receipt of nationally or internationally recognized prizes, membership in professional associations requiring outstanding achievements, published articles or scholarly work, evidence of participation as a judge of others' work, and letters from recognized experts attesting to your abilities.

The O-1 has significant advantages over H-1B: there is no annual cap, so no lottery; processing is based on merit, not luck; and the visa recognizes your individual achievement, not just your job. However, the application requires substantial documentation, expert consultations, and careful evidence curation. An immigration attorney is often essential.

Initial O-1 approval is valid for up to three years and can be extended in one-year increments. The status can be renewed indefinitely as long as you continue to meet eligibility criteria. Family members may accompany you on O-3 visas (not work-authorized).

Your status is tied to your employer—and your job

This is the most important rule. Your work visa is valid only while you are employed by the sponsoring employer in the approved role. If your employment ends—whether through layoff, resignation, or termination—your visa status is immediately affected. You are technically out of status the moment employment ends, even if your visa document is still valid and hasn't expired.

For most work visas (H-1B, L-1, O-1, and others), once your employer files a withdrawal of petition or simply stops paying your wages, the clock starts. Your employer is generally required by law to notify USCIS that the petition has been terminated.

Changing employers: transfer and amendment

If you find a new job, your new employer can file a petition to transfer you to their sponsorship—if the visa category allows it. For H-1B, your new employer files an H-1B transfer petition. For L-1, the new company must be a properly related entity (parent, subsidiary, branch, or affiliate of your previous employer). O-1 visas can sometimes be transferred if the new employer is sponsoring you for the same area of extraordinary ability, but the process and requirements are strict.

Key point: A new petition must be filed and approved before you can legally work for the new employer. However, many visa categories allow "portability"—you may be able to begin working for the new employer once USCIS receives (not approves) the new petition, without waiting for final approval. This protects workers from being unemployed during processing.

Changing jobs without a new petition is illegal. Working without authorization—even briefly—is a serious status violation and can affect future immigration benefits.

The 60-day grace period: what it is and isn't

When you lose your job (through layoff, termination, or resignation), you do not have to leave the United States immediately. Instead, you enter a 60-day grace period. This applies to H-1B, H-1B1, E-1, E-2, E-3, L-1, O-1, and TN visa holders, and their dependents. This grace period is one of the most misunderstood rules, so it is important to understand what it does—and does not—do.

• The grace period runs for 60 days from your last day of employment, or until your I-94 (Arrival/Departure Record) expires, whichever is shorter.
• During the grace period, you remain in lawful nonimmigrant status, even though you are not employed.
• You cannot work during the grace period. You may not earn a paycheck or perform work for any employer.
• You can use the time to find a new employer, file a transfer petition, change to a different visa status, or prepare for departure.

The grace period is a legal protection, not a work authorization. If you sit idle for 60 days without taking action, you will be out of status at day 61. If a new employer files a transfer petition within the grace period, you remain in valid status while USCIS processes it—sometimes for many months. But if you do not file anything and do nothing, the protection ends and you become deportable.

You cannot extend the grace period by filing a frivolous petition. The petition must be genuine—the job must be real, and your new employer must have serious intent to employ you. However, if your new employer files a non-frivolous petition before day 60, you are protected while it is pending, even if it takes six months to be adjudicated.

The grace period clock starts on your last day of employment. Get a termination letter from your employer showing the exact end date. This letter is critical evidence if you later need to prove when your employment ended and when your grace period began.

What to do during the grace period

You have two months. Use them strategically. Prioritize in this order:

1. Find a new employer willing to sponsor you. Network, apply to jobs at visa-sponsor companies, and be upfront about your visa needs.
2. Have your new employer file a transfer or new petition as soon as they are ready. Do not delay waiting for the "perfect" moment.
3. Document everything: your termination letter, the date employment ended, your job search efforts (applications, interviews, rejections), and all visa documents.
4. If you cannot find sponsorship, research alternative visa options (changing to F-1 student status, B-1 visitor status, or others) or plan your departure.

If you must leave the US, you can apply for a tourist visa (B-1/B-2) to return for visits, but you cannot return on a work visa unless a new employer sponsors you and you go through the full petition process.

Other practical considerations

Visa stamps, I-94, and consular processing

Your visa stamp (the sticker in your passport) is not the same as your immigration status. You can be in valid status without a visa stamp if you entered the US on an approved petition and have an I-94 (your official arrival/departure record). Conversely, you can have a valid visa stamp but be out of status if your employer-sponsored visa has ended.

If your petition is approved and you are outside the US, you must apply for the visa stamp at a US embassy or consulate in your home country. This is consular processing. If you are already in the US on another visa status (like F-1 student status) and your petition is approved, you can change your status without going home. This is change of status. Both paths lead to the same result, but timing and location differ.

Your I-94 is your legal entry record. It shows your admission date and your authorized stay period. Always keep a copy. When it expires, your status expires, even if your visa document is still valid. Check your I-94 expiration date carefully—it is different from your visa stamp expiration date.

Tax obligations and Social Security

As a work visa holder, you are generally required to pay US federal, state, and payroll taxes. Your employer will provide a W-2 form (unlike contractors who receive 1099 forms). You must have an Individual Taxpayer Identification Number (ITIN) or Social Security Number (SSN) to work legally. Apply for an SSN through the Social Security Administration once your visa is approved and you arrive in the US.

State tax requirements vary significantly by state. Some states have no income tax; others require it. Check your specific state's rules through your state's department of revenue website.

Dependents on derivative visas

Your spouse and unmarried children under age 21 may be eligible for derivative visas. H-1B spouses and dependents use H-4 visas; L-1 dependents use L-2; O-1 dependents use O-3. These visas allow family members to live in the US with you. Eligibility and work authorization rules vary by category and change frequently—consult USCIS guidance and an attorney before assuming your spouse can work.

Beyond temporary status: green cards and permanent residence

A work visa is temporary. If you want to live and work in the US permanently, you need to pursue a green card (permanent resident status) through employment-based immigration. Some visa categories offer faster or simpler green card pathways than others.

L-1A holders can pursue the EB-1C green card category (multinational manager/executive), which does not require PERM labor certification. H-1B holders typically pursue EB-2 or EB-3 green cards, which require PERM labor certification—a process where the Department of Labor must certify that no qualified US workers are available for the role. This can take several years.

Starting a green card petition early in your employment is important. The priority date (the date USCIS receives your green card petition, Form I-140) determines your place in an annual visa number queue. For nationals of most countries, visa numbers are currently available, but for India and China, backlogs can stretch a decade or more. Filing the I-140 petition early protects your place.

Key takeaways

• Your work visa is employer-specific. The job comes first; the visa follows.
• Most work visa categories have an annual cap or lottery (H-1B). O-1 and L-1 do not.
• Changing employers requires a new petition. Do not work for a new employer without one.
• You have a 60-day grace period after job loss, but you cannot work during it. Use it wisely.
• Your visa status depends on continuous employment. Status and visa stamps are not the same.
• State tax and residency rules vary. Know your state's requirements.
• Plan for permanence early. A green card takes time; start the process years in advance if you intend to stay.
• Consult an immigration attorney if you lose your job, want to change employers, or are unsure about your status.