Form I-129 Explained: What Your Employer Files to Sponsor You (H-1B, L-1, O-1, TN)

Form I-129 is the petition your employer files with USCIS to sponsor you, and knowing what is inside it helps you spot problems before they become denials.

Status as of October 14, 2026: The 09/09/26 edition of Form I-129 is current. USCIS accepts the 02/27/26 edition only if it is postmarked or submitted before 2026-11-09 (in effect). The 9-11 Response and Biometric Entry-Exit Fee on H-1B and L-1 extensions has been in effect since 2026-09-09. The $100,000 H-1B fee is blocked by two courts. The $103,265 H-1B fee and the rule removing deference to prior approvals (published 2026-10-14) are proposed, not law.

Form I-129, the Petition for a Nonimmigrant Worker, is the form your US employer files with USCIS to sponsor you for a temporary work status such as H-1B, L-1, O-1 or TN. Your employer is the "petitioner" and signs it. You are the "beneficiary." You supply documents, but you do not file it. An approved I-129 says USCIS agrees you qualify for that job in that classification. Getting the visa stamp or changing status is a separate step.

If you are on F-1 OPT or STEM OPT and an offer letter says "we'll sponsor your H-1B," this is the document they mean. If you hold H-1B and are switching jobs, the new employer files a new I-129. Knowing what goes into it helps you catch errors before they become RFEs.

What is an I-129 petition, in plain terms

The I-129 is the employer's request to hire you specifically in a temporary work category. It has three layers:

1. The main form. Who the employer is, who you are, which classification is requested, and what action they want (new employment, extension, change of employer, and so on).
2. A classification supplement. Each visa type has its own supplement with category-specific questions.
3. The evidence package. Support letter, job description, your credentials, and for H-1B a certified Labor Condition Application.

The same form also covers H-1B1, H-2A, H-2B, H-3, E (inside the US), P, Q-1 and R-1 workers. The live form page, uscis.gov/i-129, is the source of truth for the current edition, the instructions and the filing addresses.

Form I-129 by classification (as of October 2026)

TN and blanket L can often skip the USCIS petition. None of these is a green card, which needs a separate immigrant petition; see how Form I-140 works for the permanent-residence side.

Form I-129 instructions: what is inside the main form

The I-129 instructions cover every classification, and part numbering can shift between editions, so treat this as a map. In recent editions the main form covers:

• Petitioner information. Legal name, FEIN, address and contact person. The legal entity named here should be the one that employs you.
• Information about this petition. The requested classification and the basis for classification: new employment, continuation without change, change in previously approved employment, new concurrent employment, change of employer, or an amended petition. It also states the action requested, such as consular notification, a change of status and extension, or an extension of stay.
• Beneficiary information. Your name, date of birth, passport, I-94 number, current status and status expiration, and your SEVIS number if you are on F-1.
• Processing information. The consulate where you would apply for a visa if you are abroad, and any prior or pending petitions.
• Basic information about the job. Job title, SOC code, worksite addresses, hours, wages, start and end dates, and employer details such as headcount and gross income.
• Export control certification. Whether a license is needed to release controlled technology to you.
• Signatures. The petitioner's authorized signatory, plus any interpreter or preparer. An attorney files a G-28 alongside.

For H-1B, the job title, SOC code, wage and worksites on the I-129 must line up with the certified LCA. If you want to read your own LCA, see what an LCA is and what it contains.

I 129 H1B: the steps from offer to approval

For a typical H-1B case, the I-129 sits in the middle of a longer sequence:

1. Offer and role definition. The employer and its attorney decide the job title, duties, SOC code and wage level.
2. LCA filing with DOL. The employer files an ETA-9035 and must get certification before filing the I-129. The DOL's H-1B program pages explain the employer's wage and notice obligations.
3. Lottery (cap-subject only). Cap-subject employers must have a selected registration first. Cap-exempt employers (universities, affiliated nonprofits, nonprofit or government research organizations) skip it.
4. Assembling the petition. Main form, supplements, fees, support letter, and your documents: passport, I-94, degrees, transcripts, a credential evaluation for foreign degrees, and for F-1 students your I-20s and EAD.
5. Filing. The employer files by mail or, for some cases, online. Where it goes depends on classification and location. See our I-129 filing address guide and the live USCIS page.
6. Receipt notice (I-797C). This proves USCIS has the case. For a change of employer, H-1B portability rules can let an eligible worker start on receipt. The H-1B transfer process covers the conditions.
7. Adjudication. USCIS approves, denies or issues an RFE. Premium processing is requested on Form I-907. Regular timelines vary by form and service center, so check the USCIS processing times tool rather than any number you read online.
8. Approval (I-797A or I-797B). An in-US change of status or extension usually comes as an I-797A with a new I-94. Consular notification comes as an I-797B, and you then apply for the visa abroad.

Stamping caution: interview waivers are gone for H-1B, H-4, L-1, F-1 and J-1. You must apply in your country of nationality or legal residence, not a third country. Domestic H-1B renewal is not back. Check live appointment availability on the travel.state.gov wait-times page.

Fees: what the employer pays, and what changed in 2026

The full fee stack depends on the classification, the employer's size and nonprofit status, and the petition type. It can include a base filing fee, the Asylum Program Fee, and for H-1B the ACWIA training fee and fraud prevention and detection fee. Covered employers (defined below) also owe the 9-11 Response and Biometric Entry-Exit Fee. For base amounts, use the current USCIS fee schedule (Form G-1055) and the filing-fee section of the I-129 page.

What changed, as of October 14, 2026:

Federal rules make certain H-1B fees the employer's responsibility. If a sponsor asks you to cover one, read who is legally required to pay H-1B fees and raise it with a licensed immigration attorney.

Other 2026 actions that touch I-129 petitions

• EO 14431 (in effect as a directive, signed 2026-09-18). It tells DOL, DHS and State to take into account whether a sponsor had layoffs in the previous year when reviewing LCAs and petitions, including extensions. It defines no terms, creates no automatic denial, and had no implementing guidance as of 2026-10-13.
• DOL PERM suspension of 8 named employers (in effect, announced 2026-10-08). PERM only. H-1B petitions and status are untouched.
• Worker 60-day grace period elimination (proposed, comments close 2026-11-10). If finalized, H-1B, L-1, O-1, TN and other workers whose jobs end would lose the discretionary 60-day window in which a new employer often files a change-of-employer I-129. Today's worker grace period still applies. It is separate from the F-1 post-completion grace period, which is also still 60 days.

Common mistakes

• Filing an outdated edition. USCIS says it will reject a 02/27/26 edition postmarked or submitted on or after 2026-11-09. A rejected filing does not hold your place, and timing can matter a great deal in cap-gap or end-of-status situations.
• Job duties that don't match the real job. The support letter, LCA, SOC code and your actual work should describe the same role. A generic description invites a specialty-occupation RFE.
• Worksite drift. A move outside the LCA's area, or a material change in duties, can require an amended I-129.
• Assuming the 9-11 fee applies to everyone, or to no one. It turns on the employer's headcount and H-1B/L-1 share, not on you.
• Traveling while a change of status is pending. Leaving the US while an I-129 change-of-status request is pending is generally treated as abandoning that request. F-1 students should take cap-gap and travel questions to their DSO, and petition strategy to the employer's immigration attorney.
• Inconsistent personal data. Your name, passport, I-94 and SEVIS numbers should match your documents exactly. Your own I-94 and I-20 govern over anything published here.
• Treating the approval as a visa. An I-797B approval is not a visa stamp. You still apply at a consulate, and the stamping rules above apply.

Frequently asked questions

What is an I-129 petition?

It is the USCIS form a US employer (or agent) files to employ you in a temporary work classification such as H-1B, L-1, O-1 or TN. The employer is the petitioner and you are the beneficiary. The visa stamp or change of status is a separate step.

Do I sign or pay for Form I-129 myself?

No. The employer signs as petitioner and you provide documents. Certain H-1B fees must be borne by the employer. If you are asked to pay one, talk to an immigration attorney.

Which edition of Form I-129 is USCIS accepting in October 2026?

The 09/09/26 edition is current. USCIS accepts the 02/27/26 edition only if it is postmarked or submitted before November 9, 2026. Check the edition date at the bottom of each page against uscis.gov/i-129.

Does the new 9-11 fee apply to my H-1B extension?

Only if your employer is a covered employer: 50 or more US employees, with more than half in H-1B or L-1 status. Since September 9, 2026 those employers pay $4,000 (H-1B) or $4,500 (L-1) per extension-of-status petition. Most H-1B employers are not covered, and amendments that do not seek an extension are exempt.

Does a Canadian TN worker need Form I-129?

Not always. Canadians can usually apply at a port of entry or preclearance with a support letter. An I-129 is used for a TN change of status or extension inside the US. Mexican citizens obtain a TN visa at a consulate.

Sources

• USCIS, Form I-129 page (current edition, instructions, filing addresses): https://www.uscis.gov/i-129
• USCIS, H-1B Specialty Occupations (status of the $100,000 payment): https://www.uscis.gov/working-in-the-united-states/h-1b-specialty-occupations
• Federal Register, 9-11 Response and Biometric Entry-Exit Fee for H-1B and L-1 Visas: https://www.federalregister.gov/documents/2026/08/10/2026-16231/9-11-response-and-biometric-entry-exit-fee-for-h-1b-and-l-1-visas
• Federal Register, Proclamation 11069: https://www.federalregister.gov/documents/2026/09/23/2026-19554/restriction-on-entry-of-certain-nonimmigrant-workers
• Federal Register, Removing Deference to Prior USCIS Determinations of Eligibility (proposed): https://www.federalregister.gov/documents/2026/10/14/2026-20941/removing-deference-to-prior-uscis-determinations-of-eligibility

This article explains the process and is not legal advice. Filing decisions belong with a licensed immigration attorney; anything touching F-1, OPT or SEVIS belongs with your DSO.

The petition is your employer's job, but finding an employer willing to file it is yours. If you want help targeting companies that actually sponsor, talk to F1Jobs.