Alert: Before sending your package to USCIS, make sure that all the forms you have completed are the current acceptable edition. USCIS published new editions for most forms on April 1, 2024. If you downloaded or printed your forms before April 1, you should verify the current edition date, because we will no longer accept a prior edition. The current acceptable edition can be found under the Edition Date section listed on each form’s webpage.
You can also find the edition date at the bottom of the page on the form and instructions. For each form that you are submitting, make sure that all pages are from the same form edition. If any of the form’s pages are from a different form edition, we may reject your form. Watch USCIS Forms: Download the most recent version! to see how to ensure your form is acceptable.
For additional guidance on filing paper-based forms at the Lockbox and how to avoid or correct common errors before you file, please visit the Five Steps to File at the USCIS Lockbox webpage.
Use this form to apply for a Certificate of Citizenship.
04/01/24 . You can find the edition date at the bottom of the page on the form and instructions.
Dates are listed in mm/dd/yy format.
If you complete and print this form to mail it, make sure that the form edition date and page numbers are visible at the bottom of all pages and that all pages are from the same form edition. If any of the form’s pages are missing or are from a different form edition, we may reject your form.
If you need help downloading and printing forms, read our instructions.
Where to FileYou have two options for filing your Form N-600 with USCIS:
1. Filing your Form N-600 online
If you are applying from outside the U.S., are applying for a fee waiver, or are a member or veteran of any branch of the U.S. military filing on your own behalf, you cannot currently file your Form N-600 online. Please see section 2 below for how to file your form by mail.
You must create an online account to file your Form N-600 online. Through your online account, you can:
Attorneys and accredited representatives can also create an online account, which will allow them to manage all of their clients’ applications in one place.
2. Filing your Form N-600 by mail
If you file on paper, are applying from outside the United States, are a member or veteran of any branch of the U.S. military filing on your own behalf, or are applying for a fee waiver, you must mail your application to USCIS using one of the listed mailing addresses:
USCIS Phoenix Lockbox
U.S. Postal Service (USPS):
USCIS
Attn: NATZ
P.O. Box 20100
Phoenix, AZ 85036
FedEx, UPS, and DHL deliveries:
USCIS
Attn: NATZ (Box 20100)
2108 E. Elliot Rd.
Tempe, AZ 85284-1806
USCIS Elgin Lockbox
U.S. Postal Service (USPS):
USCIS
Attn: NATZ
P.O. Box 4088
Carol Stream, IL 60197-4088
FedEx, UPS, and DHL deliveries:
USCIS
Attn: NATZ (Box 4088)
2500 Westfield Drive
Elgin, IL 60124-7836
If you submit Form N-600 on paper, you will receive a USCIS Account Acceptance Notice in the mail with instructions on how to create an online account to track and manage your case. We will process your application even if you do not create an online account, but we encourage you to create and access your online account. We will continue to mail you copies of notifications about your case.
Photographs
You no longer need to submit photographs with your application unless you are residing outside the United States, including military service members residing outside the United States. Applicants residing outside the United States must submit two identical, color passport-style photos.
If you reside in the United States, you will receive an appointment at a local application support center (ASC) to take your photographs.
Filing FeeYou can find the filing fee for Form N-600 by visiting our Fee Schedule page.
You can pay the fee with a money order, personal check, cashier’s check or pay by credit card or debit card using Form G-1450, Authorization for Credit Card Transactions. If you pay by check, you must make your check payable to the U.S. Department of Homeland Security.
When you send a payment, you agree to pay for a government service. Filing fees are final and non-refundable, regardless of any action we take on your application, petition, or request, or if you withdraw your request. If you pay by credit card or debit card, you cannot later dispute the payment. Use our Fee Calculator to help determine your fee.
If you are submitting multiple forms, pay each filing fee separately. We are transitioning to electronically processing immigration benefit requests, which requires us to use multiple systems to process your package. We may reject your entire package if you submit a single, combined payment for multiple forms.
Form Filing TipsFiling Tips for Form N-600, Application for Certificate of Citizenship
Complete all sections of the form and submit all related documentation. We will reject the form if these fields are missing:
Filing Tips: Review our Tips for Filing Forms by Mail page for information on how to ensure we will accept your form.
Don’t forget to sign your form. We will reject any unsigned form.
Special InstructionsE-Notification: If you want to receive an e-mail and/or a text message that we have accepted your form at a USCIS lockbox, complete Form G-1145, E-Notification of Application/Petition Acceptance, and clip it to the first page of your form.
Attorney or representative: You may be represented, at no expense to the U.S. Government, by an attorney or other duly authorized or accredited representative. Your representative must submit Form G-28, Notice of Entry of Appearance as Attorney or Accredited Representative, with your Form N-600. Your representative may also submit Form G-28 at the time of your interview.
Related Links