Can I change employers while on an H-1B?

Yes, but the new employer must file a new I-129 petition on your behalf before you begin working. This is called an H-1B transfer. You do not need to wait for the new petition to be approved to start working — you can begin once the petition is filed, provided you were previously counted against the H-1B cap and the new petition is non-frivolous.

What is the H-1B cap?

The H-1B visa has an annual numerical limit of 65,000 new petitions, plus an additional 20,000 for beneficiaries with a US master's degree or higher. Employers must register their beneficiaries in the H-1B electronic registration system during the registration period, typically in March. If selected, the employer can file the full I-129 petition within the designated filing window.

Can my spouse work if I am on an L-1 visa?

Yes. Spouses of L-1 visa holders in L-2 status are eligible for employment authorization by filing Form I-765. They can work for any employer in the United States without restriction. This is one of the advantages of the L-1 visa over the H-1B visa, where H-4 spouses are only eligible for work authorization under certain conditions.

What happens if my I-129 is denied?

If your I-129 is denied, the employer will receive a denial notice with the reason. Common reasons include insufficient evidence, ineligibility of the position or beneficiary, or fraud concerns. The employer may be able to file a motion to reopen or reconsider, or they may refile with additional evidence. The beneficiary cannot work until a petition is approved.

Is an O-1 visa better than an H-1B?

The O-1 visa is for individuals with extraordinary ability in their field and has no annual cap, no lottery, and no prevailing wage requirement. However, the evidentiary standard is high — the beneficiary must demonstrate sustained national or international acclaim. The H-1B is more accessible for most professionals but is subject to the cap and requires a Labor Condition Application. The best option depends on the beneficiary's qualifications and the employer's needs.

US Immigration Form

Form I-129 — Petition for a Nonimmigrant Worker

Form I-129 is the petition an employer files with USCIS to bring a foreign national worker to the United States in a temporary nonimmigrant status. It is not filed by the worker — it is filed by the employer, who is called the petitioner. The worker is called the beneficiary. The form covers multiple visa categories including H-1B for specialty occupations, L-1 for intracompany transferees, O-1 for individuals with extraordinary ability, and several lesser-known categories.

Each visa category has its own classification supplement that accompanies the I-129 — the H Classification Supplement for H-1B petitions, the L Classification Supplement for L-1 petitions, and the O and P Classifications Supplement for O-1 petitions. These supplements ask for category-specific information such as the job description, wage level, and evidence that the beneficiary meets the requirements.

The I-129 process is employer-driven from start to finish. The employer must demonstrate that the position qualifies for the requested visa category, that the beneficiary meets the requirements, and that the employer will pay the required wage. This guide explains what Form I-129 is, who files it, what the process involves, and the most common mistakes employers make.

Who files this form

Form I-129 is filed by a US employer who wants to employ a foreign national in a temporary nonimmigrant worker status. The employer is the petitioner, and the foreign national is the beneficiary. The form cannot be filed by the worker themselves, although the worker may need to provide documents and information to the employer for inclusion in the petition.

The employer must be a legitimate US entity with a tax identification number and the ability to pay the required wage. For H-1B specialty occupation petitions, the employer must also file a Labor Condition Application with the Department of Labor before filing the I-129. For L-1 intracompany transferee petitions, the employer must demonstrate a qualifying relationship between the US entity and a foreign parent, subsidiary, affiliate, or branch office. For O-1 extraordinary ability petitions, the employer or an agent may file on behalf of the beneficiary.

What this form is for

The purpose of Form I-129 is to allow USCIS to evaluate whether a US employer has a legitimate temporary need for a foreign worker and whether the proposed position and beneficiary meet the statutory and regulatory requirements for the requested nonimmigrant visa category. If approved, USCIS issues a Form I-797 Approval Notice, which the beneficiary can use to apply for a visa at a US consulate or, if already in the United States, to change or extend their status.

The I-129 petition is specific to the employer, the position, and the location. If any of these change significantly, the employer may need to file an amended petition. For H-1B workers, a change in work location may require a new Labor Condition Application and an amended I-129 if the new location is outside the existing labor condition application area. The petition does not grant the beneficiary permanent residence — it authorizes only temporary employment in the specified position.

Key sections

Part 1 — Petitioner information: employer name, address, EIN, and contact information
Part 2 — Beneficiary information: name, date and place of birth, country of citizenship, and passport number
Part 3 — Processing information: requested visa classification, requested action, and prior petitions
Part 4 — Supplemental information for the specific visa category: H-1B, L-1, O-1, etc.
Part 5 — Employer statement and signature

Common mistakes

Filing the I-129 without first obtaining an approved Labor Condition Application for H-1B petitions
Misclassifying the job title or wage level on the Labor Condition Application
Failing to demonstrate a qualifying corporate relationship for L-1 petitions
Submitting insufficient evidence of extraordinary ability for O-1 petitions
Not filing an amended I-129 when the beneficiary's work location changes significantly
Paying the wrong filing fee — check the current USCIS fee schedule for Form I-129 before submitting

Official sources

Always verify the current form edition, fee, and instructions on the government site before filing. This guide is educational and not a substitute for your DSO or a licensed attorney.

Procedural deep-dives

For filing strategy, timing, and evidence standards, use these legal owners.

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How I-765 and I-983 fit the post-completion work path.
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When Form I-983 and E-Verify rules constrain founder roles.
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Related guides

US work visas guide

H-1B transfer process guide

Visa refusal appeal support

Frequently asked questions

Can I change employers while on an H-1B?: Yes, but the new employer must file a new I-129 petition on your behalf before you begin working. This is called an H-1B transfer. You do not need to wait for the new petition to be approved to start working — you can begin once the petition is filed, provided you were previously counted against the H-1B cap and the new petition is non-frivolous.
What is the H-1B cap?: The H-1B visa has an annual numerical limit of 65,000 new petitions, plus an additional 20,000 for beneficiaries with a US master's degree or higher. Employers must register their beneficiaries in the H-1B electronic registration system during the registration period, typically in March. If selected, the employer can file the full I-129 petition within the designated filing window.
Can my spouse work if I am on an L-1 visa?: Yes. Spouses of L-1 visa holders in L-2 status are eligible for employment authorization by filing Form I-765. They can work for any employer in the United States without restriction. This is one of the advantages of the L-1 visa over the H-1B visa, where H-4 spouses are only eligible for work authorization under certain conditions.
What happens if my I-129 is denied?: If your I-129 is denied, the employer will receive a denial notice with the reason. Common reasons include insufficient evidence, ineligibility of the position or beneficiary, or fraud concerns. The employer may be able to file a motion to reopen or reconsider, or they may refile with additional evidence. The beneficiary cannot work until a petition is approved.
Is an O-1 visa better than an H-1B?: The O-1 visa is for individuals with extraordinary ability in their field and has no annual cap, no lottery, and no prevailing wage requirement. However, the evidentiary standard is high — the beneficiary must demonstrate sustained national or international acclaim. The H-1B is more accessible for most professionals but is subject to the cap and requires a Labor Condition Application. The best option depends on the beneficiary's qualifications and the employer's needs.

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