N-400, Application for Naturalization

• Download Form N-400 (614KB PDF)
• Download Instructions for Form N-400 (242KB PDF)
• Download Document Checklist, Current Fees, Naturalization Eligibility Worksheet (1KB PDF)
• Download Naturalization Requirements Information (1KB PDF)
• Download Form G-1145, E-Notification of Application/Petition Acceptance (1KB PDF)

Purpose of Form :

To apply for U.S. citizenship.

Number of Pages :

Form 10; Instructions 7.

Edition Date :

01/18/11; (11/23/10, 04/05/10, and 01/22/09 editions also accepted)

Where to File :

1.  All Applicants (with the exception of current or former members of the military, spouses of current members of the military, and close relatives of deceased members of the military. See "2." below.)

If you reside in Alaska, Arizona, California, Colorado, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Montana, Nebraska, Nevada, North Dakota, Ohio, Oregon, South Dakota, Utah, Washington, Wisconsin, Wyoming, Territory of Guam, or the Commonwealth of the Northern Mariana Islands, send your application to the USCIS Phoenix Lockbox Facility at the following address:

USCIS
P.O. Box 21251
Phoenix, AZ 85036

For Express Mail or courier deliveries, use the following address:

USCIS
Attn:  N-400
1820 E. Skyharbor Circle S
Suite 100
Phoenix, AZ 85034

If you reside in Alabama, Arkansas, Connecticut, Delaware, District of Columbia, Florida, Georgia, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Mississippi, New Hampshire, New Jersey, New Mexico, New York, North Carolina, Oklahoma, Pennsylvania, Rhode Island, South Carolina, Tennessee, Texas, Vermont, Virginia, West Virginia, Commonwealth of Puerto Rico, or the U.S. Virgin Islands, send your application to the USCIS Dallas Lockbox Facility at the following address:

USCIS
P.O. Box 660060
Dallas, TX 75266

For Express Mail or courier deliveries, use the following address:

USCIS
Attn: N-400
2501 S State Hwy 121 Business
Suite 400
Lewisville, TX 75067

2.  Applications from Current or Former Members of the Military, Spouses of Current Members of the Military, and Close Relatives of Deceased Members of the Military

All naturalization applications filed under the military provisions, sections 328 or 329 of the INA, must send your application to the Nebraska Service Center (NSC) regardless of where you live and whether you are filing from within the United States or abroad.  If you are the spouse of a current member of the military, or are the close relative of a deceased family member (319(d)), send your application for naturalization to the NSC regardless of where you live and whether you are filing from the within the United States or abroad.  Send your application to:

Nebraska Service Center
P.O. Box 87426
Lincoln, NE 68501-7426

For Express Mail or courier deliveries, use the following address:

Nebraska Service Center
850 S. Street
Lincoln, NE 68508

E-Notification: If you are filing your Form N-400 at one of the USCIS Lockbox facilities, you may elect to receive an e-mail and/or text message notifying you that your application has been accepted.  You must complete Form G-1145, E-Notification of Application/Petition Acceptance, and clip it to the first page of your application.  To download a copy of Form G-1145, including the instructions, click on the link at the top of the page.

Filing Fee :

$595 (Add $85 biometric fee for a total of $680, where applicable. See form instructions for payment details.) No fee is required for military applicants filing under Section 328 and 329 of the INA. Applicants 75 years of age or older are not charged a biometric fee.

Special Instructions :

Please note: A Guide to Naturalization (Form M-476) provides important information about citizenship eligibility requirements and processing procedures. The Form N-400 application instructions often refer to information in the Guide. Therefore you should read the Guide carefully before filing this form.

This version of the N-400, Application for Naturalization, is available above in two files - the instructions and the form itself. We recommend that you download the form directly to your local computer, rather than fill it out through your web browser.

Note on Filing Fee: Fees are accepted in the form of money order, personal check or cashiers check only.

Important Lockbox Filing Tips:

• Read and follow all form instructions for fees, filing location, and eligibility requirements.
• If hand writing your application, ensure all entries are neat and legible.
• When entering information on your application or petition, be sure to keep your information within the box or space provided.
• Use black or blue ink only. Do NOT use highlighters or red ink on your application as they may make your materials undetectable when scanned.
• Ensure that you are using the correct edition of the form. The correct edition is always available for FREE download at the top of this page.
• Ensure that printed forms do not have the data fields grayed out. Information entered into grayed-out data fields will not be detected by the machine scanners.
• Ensure that you provide all required supporting documentation and evidence.
• Ensure that the supporting documents written in a language other than English are accompanied by an English translation.
• Be sure to sign your application.
• Be sure that you mail all pages of the application.
• If you must change your form, we recommend that you begin with a new form, rather than trying to white out information. Our scanners may see through the white correction tape or fluid and make your form incorrect, possibly leading to processing delays or rejection.

Fees

• Checks must be made payable to U.S. Department of Homeland Security. Read the form instructions for additional details.
• We suggest that you use a separate check or money order for each application in the package and biometric fees.  If a single check is submitted for multiple applications and one of the applications must be rejected, then all applications will be rejected. The Lockbox can not accept overpayment and make partial refunds.
• Note that the requirement for biometrics fees varies depending upon your age and the benefit for which you are applying. Ensure the biometric fees submitted are correct based upon age and benefit.

Customer Service

• If your form is rejected and you don't understand our explanation or disagree with that determination, please write to Lockboxsupport@dhs.gov before you re-file.  We will respond quickly to your concern.  Please include the form type, receipt number(s), and the applicant name and mailing address in your inquiries.  We specifically ask that Alien Numbers (A-numbers) NOT be included in email, as email is not a secure means of communication.
• Lockboxsupport@dhs.gov can answer questions regarding applications and petitions which are pending acceptance or rejection at the Lockbox, and those which have been rejected.  Once your application has been accepted, the Lockbox has no information on the adjudication status. After your application or petition has been accepted by the Lockbox, if you have questions about the status of your pending application or petition, contact USCIS Customer Service at (800) 375-5283 or visit our website, www.uscis.gov, and use the InfoPass system to make an appointment at your local USCIS office.
• Requests to withdraw an application or petition must be addressed to the office adjudicating your application or petition.
• Requests to send files to a different office must be made to the office holding your file.  Call USCIS Customer Service at (800) 375-5283 to determine where your inquiry should be sent.
• The Lockbox does not process refunds.  Information about refunds can be found by visiting our website and typing Refund Request in the Search box in the upper right hand corner of the homepage.

What Not to Send to a Lockbox Facility

• Only applications with fees or fee waiver requests should be sent to any Lockbox.
• The following items are examples of items that should not be mailed to any Lockbox:

1.    The Lockbox does not accept additional evidence submitted in response to a Request for Evidence (RFE) or a Notice of Intent to Deny (NOID).  Send all documents and information requested through a Request for Evidence (RFE) or Notice of Intent to Deny (NOID) to the office requesting the information.

2.    The Lockbox does not process changes of address.  Please see our website for more information on change of address.