Form N-600, Application for Certificate of Citizenship

Form N-600, Application for Certificate of Citizenship

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Last updated: November 9, 2025.

By Asel Williams, Esq. · Columbia Law School · Licensed immigration attorney

Form N-600 filing fee

The filing fee for Form N-600, Application for Certificate of Citizenship depends on your category:

N-600 Filing Category Paper Filing Fee Online Filing Fee
General Filing $1,385 $1,335
If you are filing as a current or former member of any branch of the U.S. armed forces on your own behalf. $0 $0
If you are filing on behalf of an individual who is the subject of a final adoption for immigration purposes and meets (or met before 18 years of age) the definition of child under the Immigration and Nationality Act section 101(b)(1)(E), (F), or (G). $0 $0

Certain applicants may be eligible for a Fee Waiver. Learn more: Form I-912, Request for Fee Waiver.

USCIS fees are subject to change, check the latest Form N-600 filing fee on the USCIS website.

Form N-600 checklist of required documents

The following documents must be submitted with your Form N-600 application:

Evidence 

Examples of acceptable documents

Completed and signed Form N-600
  • Download the most recent edition of Form N-600 on USCIS website
  • Answer all questions
  • Sign and date the form
  • Unsigned, undated or outdated editions of Form N-600 will be rejected by USCIS
Filing fee 
  • Check the most current Form N-600 filing fee
  • If you file the application online, the filing fee will be paid online using a credit card
  • If submitting application by mail, you can pay this fee with a money order, personal check, cashier’s check or pay by credit card using Form G-1450, Authorization for Credit Card Transactions
  • If you pay by check, it must be payable to the U.S. Department of Homeland Security
U.S. passport-style photographs
  • Two identical color U.S. passport-style photographs of the applicant taken within the last 30 days
Birth certificate
  • Applicant’s long-form birth certificate that lists both parents’ names
Parent’s birth certificate
  • The parent’s birth certificate (the parent through whom you are claiming U.S. citizenship)
Parent’s marriage certificate
  • U.S. citizen parent’s marriage certificate (the parent through whom you are claiming U.S. citizenship)
Parent’s marriage termination documents
  • U.S. citizen parent’s marriage termination documents (the parent through whom you are claiming U.S. citizenship):
    • Certified divorce decree;
    • Annulment decree;
    • Death certificate
Parent’s proof of U.S. citizenship Provide at least one of the following document confirming your parent’s U.S. citizenship status:

  • U.S. birth certificate (if parent was born in the U.S.);
  • Certificate of Naturalization (Form N-550);
  • Certificate of Citizenship (Form N-560);
  • Consular Report of Birth Abroad (Form DS-240); or
  • Unexpired U.S. passport (biographic page)
Proof of legitimation Required ONLY if you were born out-of-wedlock to a U.S. citizen father:

  • Legitimation documentation from the country or state in which you legitimated.
  • Learn more on USCIS website
Proof of legal and physical custody  Required ONLY if your US citizen parents divorced/separated, you were adopted or legitimated:

  • Court order(s)
  • Proof of residing with the parent
  • Proof that US citizen parents is engaged in daily care of the child
Proof of child’s lawful permanent residence Required ONLY if you are claiming US citizenship after birth:

  • Child’s green card (front and back);
  • Child’s stamped U.S. immigrant visa
Parent’s proof of physical residence/presence in the U.S.
  • School records
  • Employment records (pay stubs, employment agreement)
  • Lease agreement(s)
  • Monthly utility bills
  • U.S. military records
  • Affidavits from churches, unions, or other U.S. organizations
  • U.S. Social Security quarterly reports
  • Affidavits from landlords, employers, neighbors, friends and family members who have personal knowledge of U.S. citizen parent’s residence and physical presence in the U.S.
Final adoption decree Required ONLY if the child was adopted:

  • Copy of full final adoption decree
Proof of legal name change If the child has changed name(s):

  • Court order
Secondary evidence ONLY if the primary evidence is unavailable:

  • Written explanation outlining why the primary evidence is unavailable and your attempts to obtain it and secondary evidence, such as:
    • Baptismal certificate
    • School record(s)
    • Census record(s)
    • Sworn affidavits of individuals who have personal knowledge of the event(s)
English translation
  • If any supporting documents are in a foreign language, provide certified English translation.
  • Attach the photocopy of the original document in foreign language

Form N-600 processing time

Processing times of Form N-600 vary depending on several factors, including the workload at the specific USCIS field office processing the application and the complexity of the case:

USCIS field office N-600 average processing time
Agana GU 24 months
Albany NY 17.5 months 
Albuquerque NM 6.5 months
Anchorage AK 6.5 months
Atlanta GA 9.5 months
Baltimore MD 16.5 months
Boise ID 19 months
Boston MA 19.5 months
Brooklyn NY 14 months
Buffalo NY 12 months
Burlington VT 17 months
Charleston SC 14.5 months
Charlotte Amalie VI 12.5 months
Charlotte NC 7 months
Chicago IL 7 months
Christiansted VI 19.5 months
Cincinnati OH 5 months
Cleveland OH 5.5 months
Columbus OH 6.5 months
Dallas TX 7 months
Denver CO 20.5 months
Des Moines IA 5.5 months
Detroit MI 5.5 months
El Paso TX 16.5 months
Fort Myers FL 11.5 months
Fort Smith AR 7 months
Fresno CA 6 months
Greer SC 5.5 months
Harlingen TX 18 months
Hartford CT 9 months
Helena MT 6.5 months
Hialeah FL 7.5 months
Honolulu HI 14 months
Houston TX 7 months
Imperial CA 10 months
Indianapolis IN 7 months 
Jacksonville FL 7.5 months
Kansas City MO 14 months 
Kendall FL 14.5 months
Las Vegas NV 17 months
Lawrence MA 10.5 months
Long Island NY 9.5 months
Los Angeles CA 6 months
Los Angeles County CA 6.5 months 
Louisville KY 6.5 months
Manchester NH 7 months
Memphis, Tennessee 8.5 months
Miami FL 15.5 months
Milwaukee WI 15 months 
Minneapolis-St. Paul MN 27.5 months
Montgomery AL 33.5 months
Mount Laurel NJ 13.5 months
Nashville, Tennessee 15 months 
Newark NJ 14.5 months
New Orleans LA 18 months
New York City NY 8.5 months
Norfolk VA 23 months
Oakland Park FL 17 months
Oklahoma City OK 7.5 months
Omaha NE 22 months
Orlando FL 22 months
Philadelphia PA 24.5 months
Phoenix AZ 17 months
Pittsburgh PA 5.5 months
Portland ME 10 months
Portland OR 20.5 months
Providence RI 5.5 months
Queens NY 20 months
Raleigh NC 6 months
Reno NV 27 months
Sacramento CA 12 months
Saint Louis MO 6 months
Salt Lake City UT 10.5 months
San Antonio TX 9.5 months
San Bernardino CA 7 months
San Diego CA 14 months
San Fernando Valley CA 4 months
San Francisco CA 13.5 months
San Jose CA 8 months
San Juan PR 8 months
Santa Ana CA 15.5 months
Seattle WA 21 months
Spokane WA 23 months
Tampa FL 10 months
Tucson AZ 15.5 months
Washington DC 15.5 months
West Palm Beach FL 6.5 months
Wichita KS 23 months
Yakima WA 21 months

To check the most current processing times for Form N-600:

  • Visit the USCIS website at https://egov.uscis.gov/processing-times
  • Choose “Form N-600” 
  • Choose your USCIS field office. You can find your USCIS field office by entering your physical address ZIP code: https://www.uscis.gov/about-us/find-a-uscis-office/field-offices (scroll down to the bottom of page, “Field Office Locator”)

Keep in mind that processing times are general estimates, and individual cases may take less or more time to complete.

Additionally, USCIS may issue Requests for Evidence (RFEs) during the processing of your application, which can add to the overall processing time. 

It’s crucial to respond promptly and thoroughly if you receive an RFE to avoid delays.

If your case is outside the normal processing time, you place an Outside Normal Processing Time e-Request or request assistance from your local congressman’s office.

Related Links:

U.S. Citizenship Application Guide – N-400

Form N-565, Application for Replacement Naturalization/Citizenship Document