Top 7 Mistakes to Avoid When Submitting USCIS Forms
Most USCIS rejections and delays come from simple, avoidable errors. Here are the 7 most common mistakes — and exactly how to prevent each one.

Dariana — DFT Digital Multiservice
Document Preparer Specialist · Not an Attorney
1Mistake 1: Using an Outdated Form Version
USCIS regularly updates its forms, and using an old version is an automatic rejection. Always download forms directly from USCIS.gov and check the edition date in the lower-left corner of the form. Never use a form from a third-party website, photocopy an old form, or reuse a previous submission.
2Mistake 2: Leaving Fields Blank
Every field on a USCIS form must be filled in. If a question doesn't apply to you, write 'N/A' (not applicable) — do not leave it blank. Blank fields suggest the form is incomplete and can result in a rejection or Request for Evidence (RFE).
3Mistake 3: Incorrect or Missing Signatures
Forgetting to sign a form — or signing in the wrong section — is one of the most common and costliest errors. Some forms require signatures in multiple places, and some require both the applicant and a preparer to sign separately. Review every signature field before submitting.
4Mistake 4: Wrong Fee Amount
USCIS fees change periodically, and submitting the incorrect amount will result in an automatic rejection of your entire package. Always verify the current fee on USCIS.gov on the day you prepare your payment. Do not submit cash — use a check or money order payable to 'U.S. Department of Homeland Security.'
5Mistake 5: Inconsistent Information Across Forms
If you submit multiple forms together (e.g., I-485 with I-131 and I-765), make sure every piece of information — full name, date of birth, address, A-number — is identical across all forms. Discrepancies trigger RFEs and delays even when the underlying information is correct.
6Mistake 6: Attaching Wrong or Expired Documents
Supporting documents must be current, complete, and in the correct format. Expired identification, photos taken more than 6 months ago, or photocopies when originals are required are common errors. Certified translations must accompany all documents not in English.
7Mistake 7: Mailing to the Wrong Address
USCIS has multiple filing locations, and the correct address depends on your state, your eligibility category, and whether you're submitting by regular mail or courier. Mailing to the wrong address can add months to your processing time. Always verify the mailing address from the form instructions on USCIS.gov the week you send your application, as addresses do change.
Important Disclaimer
This article is for informational purposes only and does not constitute legal advice. DFT Digital Multiservice is a Document Preparer Specialist — not an attorney and not authorized to provide legal advice. For complex legal matters, please consult a licensed immigration attorney.
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