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Unfavorable decision

“Case Was Rejected Because It Was Improperly Filed”on your N-600 · Proof of citizenship through parents

Your N-600 was returned without review.
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WHICH STEP ARE YOU ON?
Receipt notice · here
Review by an officer
Interview (if needed)
Decision
Certificate mailed or handed over

What to do, in 5 steps

Read the rejection notice to find the exact problem.
Download the current form edition from uscis.gov.
Sign every place that needs a signature.
Refile at the correct address for your form.
Check if any deadline makes refiling urgent.
letter
Your deadlineThe one on your letter. Do not miss it.
In this statusThe rejected case stays closed; refile as soon as you fix the problem.

What it means for your N-600

Your N-600 was returned without review. Common reasons include a missing signature, a parent signing for an adult applicant, or an outdated form edition. Fix the problem shown on the notice and file again. The fee is usually returned with it.

In general, on any form:

USCIS rejected your filing because something basic was wrong, like a missing signature, wrong form edition or wrong address. A rejected case is not reviewed and has no filing date. USCIS usually returns the package with a notice. You can fix the problem and file again.

Avoid these mistakes

Using an old form edition.
Forgetting to sign.
Mailing to the wrong address.

Quick questions

What does "Case Was Rejected Because It Was Improperly Filed" mean on an N-600?

Your N-600 was returned without review. Common reasons include a missing signature, a parent signing for an adult applicant, or an outdated form edition. Fix the problem shown on the notice and file again. The fee is usually returned with it.

Is a rejection the same as a denial?

No. A rejection means USCIS never accepted the case for review.

Do I get my fee back?

A rejected package is usually returned with the payment, or the payment is not cashed.

Can I refile right away?

Yes, once you fix the problem the notice describes.

How long does an N-600 take?

The typical range published by USCIS is 11 to 12 months. It depends on the office and your case; it is not an exact date.

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Other statuses of your N-600

Case Was ReceivedIntakeCase Was Received and A Receipt Notice Was SentIntakeCase Rejected Because I Sent An Incorrect FeeIntakeCase Was Received and A Receipt Notice Was EmailedIntakeCase Accepted By The USCIS LockboxIntakeFees Were WaivedIntakeFingerprint Fee Was ReceivedBiometricsFingerprint Review Was CompletedBiometricsBiometrics Appointment Was ScheduledBiometrics

Every status of an N-600 →

This same status on other forms

I-485Green card from inside the U.S.Application to Register Permanent Residence or Adjust StatusI-130Petition for a family memberPetition for Alien RelativeI-765Work permit (EAD)Application for Employment AuthorizationN-400Become a U.S. citizenApplication for NaturalizationI-131Travel permit or reentry permitApplication for Travel Documents, Parole Documents, and Arrival/Departure RecordsI-751Remove conditions on 2-year green cardPetition to Remove Conditions on ResidenceI-90Renew or replace green cardApplication to Replace Permanent Resident CardI-129FK-1 fiancé(e) visa petitionPetition for Alien Fiancé(e)I-140Employment-based green card petitionImmigrant Petition for Alien Workers

AI-assisted explanation based on the official USCIS status, reviewed by CaseAlerta. Not legal advice. Times are typical ranges, never an exact date.