Check your Form I-129 for errors before you file

An employer's petition to hire a foreign worker temporarily in a nonimmigrant classification (H-1B, L-1, O-1, TN, and others). A single blank field or wrong-edition page gets the whole package returned, and since 07/10/2026 an invalid signature can be denied outright — and the $780 paper filing fee (H-1B/H-1B1 petition, regular petitioner) is generally non-refundable. Here is exactly what to verify on your completed I-129 before it goes to USCIS.

How do I check my I-129 for errors?

1. Confirm you have the current edition

USCIS accepts more than one edition of I-129 right now — 09/09/26 and 02/27/26. Any other edition is an automatic rejection. The date is printed at the bottom of every page, and all pages must come from the SAME edition even though two are acceptable. This changes on Nov. 9, 2026: from that date only 09/09/26 is accepted. Download a fresh copy from uscis.gov right before you file.

USCIS published the 09/09/26 edition on 2026-09-09 to match the H-1B and L-1 Visas final rule effective the same day. Verified 2026-09-09 against uscis.gov/i-129 and the live i-129.pdf (38 pages, all footers 09/09/26).

2. Verify every signature block

Unsigned or wrongly-signed forms are rejected — or, under the signature rule effective July 10, 2026, denied outright with the filing fee kept and no chance to fix it. A typed name, a cursive or script font, a stamp, or a digital e-signature (such as DocuSign) is not a valid signature on a paper filing; only a handwritten ink signature — or a scan, photocopy, or fax of one — is accepted. An electronic signature counts only when it is captured through a USCIS online account during online filing. I-129 has 2 signature blocks to check:

3. Make sure no required section is incomplete

Leaving required fields blank (instead of writing “N/A” or “None”) is one of USCIS's most common rejection reasons. On I-129, pay special attention to:

• Part 1, Items all: Petitioner (employer) information
• Part 2, Items 2: Requested nonimmigrant classification (H-1B, L-1, O-1, TN, E, etc.) — the choices are itemized; select the one that matches the supplement filed — NOTE: item number applies to the 02/27/26 edition and is UNVERIFIED; on the 09/09/26 edition the classification is Part 2 Item 1, not Item 2.
• Part 2, Items 1: Requested nonimmigrant classification, written as the classification symbol (H-1B, L-1, O-1, TN, E, etc.) — Part 2 Item 1 on the 09/09/26 edition. Item 2 on that edition is Basis for Classification (new employment, change of employer, amendment, continuation), which is a different question.
• Part 2, Items 4: Requested action (new employment, continuation, change of employer, amendment...) — choose only ONE
• Beneficiary section, Items incl. 5: Beneficiary identity details (sex per birth certificate, names, DOB, travel/status documents)
• Classification supplement, Items —: Complete the supplement that MATCHES the requested classification (Part 2): H Classification Supplement for H-1B/H-2A/H-2B/H-3; L Classification Supplement for L-1; O and P Classification Supplement for O-1/O-2/P-1/P-2/P-3; R-1 Classification Supplement for R-1; E/Trade Agreement (Free Trade) Supplement for E-1/E-2/E-3/H-1B1/TN. ADDITIONALLY, H-1B and H-1B1 petitions require the H-1B Data Collection and Filing Fee Exemption Supplement plus a certified LCA. The supplement referenced must not contradict the requested classification.
• H-1B registration consistency, Items —: H-1B cap petitions: the petition must MATCH the selected registration — USCIS may reject or deny if registration and petition information do not match

4. Check every date — format and consistency

Dates must be written mm/dd/yyyy and must agree with your supporting documents and any other forms in the package. The date fields that most often cause problems on I-129:

• Requested employment start/end dates — Must fit the classification’s limits and (for H-1B) the LCA validity.
• Beneficiary status/I-94 expiry vs filing date — Extensions/changes of status must be filed before the current stay expires.

5. Re-check the known I-129 filing problems

From USCIS's own instructions and guidance, these are the specific problems to rule out on I-129. Some get a filing rejected at intake; others surface later as a Request for Evidence or a denial:

• Petition not signed by an authorized signatory, or invalid signature (a typed, script-font, stamped, or digital/e-signature is invalid where an ink signature is required; as of 07/10/2026 this is a denial with the fee kept, not merely a rejection)
• Fee errors — base fee plus classification-specific fees (Asylum Program Fee, Fraud Prevention, ACWIA, Pub. L. 114-113) wrong or missing
• H-1B petition information not matching the cap registration — may be rejected or denied
• Requested classification does not match the classification supplement completed (e.g., H-1B requested but an L Classification Supplement referenced), or the required supplement is missing
• More than one requested action selected in Part 2 Item 4
• Missing LCA (H-1B) or other classification prerequisites

Related

Form I-129 error check — frequently asked questions

How do I check my Form I-129 for errors before filing?

Work through the checklist on this page: confirm you have the current 09/09/26 edition, verify every signature block is signed and dated by the right person, make sure no required field is blank (write "N/A" or "None" instead), check every date is in mm/dd/yyyy format and consistent across your documents, and re-read the known problems below. Or upload your completed I-129 to FormGuard and get an automated line-by-line error report in about a minute for $39.

What problems most often hold up a Form I-129 filing?

Petition not signed by an authorized signatory, or invalid signature (a typed, script-font, stamped, or digital/e-signature is invalid where an ink signature is required; as of 07/10/2026 this is a denial with the fee kept, not merely a rejection); Fee errors — base fee plus classification-specific fees (Asylum Program Fee, Fraud Prevention, ACWIA, Pub. L. 114-113) wrong or missing; H-1B petition information not matching the cap registration — may be rejected or denied; Requested classification does not match the classification supplement completed (e.g., H-1B requested but an L Classification Supplement referenced), or the required supplement is missing; More than one requested action selected in Part 2 Item 4.

Which edition of Form I-129 is current?

The current edition of Form I-129 is dated 09/09/26. USCIS rejects forms filed on a superseded edition, so download a fresh copy from uscis.gov right before you file and confirm the edition date printed at the bottom of every page matches.

What happens if my I-129 is rejected?

USCIS returns the entire package unprocessed and the $780 paper filing fee (H-1B/H-1B1 petition, regular petitioner) for I-129 is generally non-refundable — you correct the error, pay again, and lose weeks or months. That is why a careful pre-filing check is the cheapest step in the whole process.