Why W-7 Forms Get Rejected: Common Mistakes to Avoid

What Are the 7 Most Common W-7 Rejection Reasons in 2026?

1. Uncertified document copies. The IRS requires originals or issuer-certified copies. Notarized photocopies are not accepted.
2. Missing or improper signature. Wet ink only, and by the correct party (applicant or guardian for minors).
3. Wrong reason code on line 6. The selected code must match the supporting documents attached.
4. Missing or mismatched federal tax return. Without Form 1040 or 1040-NR (and unless an exception applies), the packet is rejected.
5. Expired passport. Must be valid at the time of IRS receipt; missing photo/signature pages also cause rejection.
6. Name or date-of-birth mismatch. Any deviation from the passport spelling or DOB triggers automatic rejection.
7. Incorrect mailing address format. Foreign addresses must include city, country, and postal code; PO boxes are not accepted for primary address.

For per-line W-7 guidance, see the Form W-7 Instructions and the ITIN rejection guide.

How Do Documentation Mistakes Cause W-7 Rejection?

The IRS requires original documents or issuer-certified copies for ITIN applications. The following document errors cause immediate rejection:

• Notarized photocopies submitted in place of originals.
• Plain photocopies without certification.
• Scans printed at home.
• Documents in a language other than English without an IRS-recognized translation.
• Documents that do not establish foreign status and identity together (only the passport does both alone).

What Signature Errors Cause W-7 Rejection?

• Missing signature on the bottom of Form W-7.
• Electronic signatures (DocuSign, Adobe Sign) are not accepted.
• Signed by the wrong party. For minors under 18, only a parent or court-appointed guardian may sign.
• Signature does not match the name printed on the form.
• Signed in pencil or non-black ink (best practice: black wet ink only).

How Do Reason Code Errors Trigger Rejection?

Line 6 of Form W-7 requires selecting 1 of 8 reason codes (a-h). Each code maps to specific supporting documents. Common mistakes:

• Selecting code (a) Non-resident alien required to claim a treaty benefit without attaching the treaty documentation.
• Selecting code (b) Non-resident alien filing a US tax return without attaching the return.
• Selecting code (h) Other without attaching the IRS exception proof.
• Selecting code (d) Dependent without attaching proof of relationship and US residency.

Why Does the IRS Reject Tax Return Mismatches?

The W-7 packet generally requires an attached federal tax return. The IRS rejects packets where:

• The return is missing entirely (and no exception is claimed).
• The return year does not match the application timing.
• The name on the return differs from the name on Form W-7.
• The return is unsigned or unfinished.
• The return claims a refund for a year for which the statute of limitations has expired.

How Do You Avoid W-7 Rejection in 2026?

• Use the current Form W-7 revision (October 2024 or later).
• Match every name field to the passport exactly, character by character.
• Sign in wet black ink.
• Select the correct line 6 reason code and attach the matching documents.
• Use a Certifying Acceptance Agent to pre-check and certify documents.