Fillable Form N-400
N-400 is a form used to apply for a U.S. citizenship via naturalization. Naturalization is the most common method for people to become U.S. citizens voluntarily.
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What is Form N-400?
Form N-400, officially known as the Application for Naturalization, is a legal document for those applying for US citizenship through the naturalization process.
You are eligible to file the Form N-400 if you meet the following:
Along with this form, you have to prepare a copy of your green card and application fee payment.
Depending on your circumstances, you might also need to offer additional documents.
How to Fill Out Form N-400?
Filling out Form N-400 is simple and only demands that you pay close attention to detail. In any case, you should not have trouble using it, as it has clear instructions on how to input all the required information. It is divided into eighteen (18) parts:
Part 1. Information About Your Eligibility
Choose one from the categories which will be the basis upon which you are applying for naturalization.
Part 2. Information About You
Item Number 1
Provide your full legal name as it is on your birth certificate unless it changed due to a legal reason such as a marriage or court order.
Item Number 2
Provide your name exactly as it appears on your Permanent Resident Card even if it is misspelled or has changed through any legal action since you received your card. If you do not have a Permanent Resident Card, type or print “N/A”.
Item Number 3
Provide other names, aliases, or nicknames that you have used.
Item Number 4
Enter the name that you would like to use in the future if it is different from your present legal name.
Item Number 5
Enter your SSN only if you have one. Type or print “N/A” if you do not have one.
Item Number 6
Provide your USCIS online account number.
Item Number 7
Indicate if you are male or female.
Item Number 8
Provide your date of birth.
Item Number 9
Provide the date you became a permanent resident as shown on your Permanent Resident Card.
Item Number 10
Provide the name of the country where you were born.
Item Number 11
Provide the name of the country where you are presently a citizen. If you are a citizen of more than one country, put the name of the foreign country that issued your last passport.
Item Number 12
If you are applying for a waiver of the English and/or civics test based on your disability, select “Yes.” If not, select “No.”
Item Number 13a
Select the box which corresponds to your age and the length of time you have been a lawful permanent resident in the U.S.
Part 3. Accommodations for Individuals with Disabilities and/or Impairments
Item Number 1
If you are requesting an accommodation to the naturalization process because of disability, select “Yes.” If not, select “No.”
Box A
If you are deaf or hard of hearing, select this box and provide the accommodation you need on the space provided.
Box B
If you are blind or have low vision, select this box and provide the accommodation you need on the space provided.
Box C
If you have another type of disability or impairment, select this box and describe the type of disability or impairment you have and the accommodation you need on the space provided.
Part 4. Information to Contact You
Item Number 1
Provide your daytime telephone number.
Item Number 2
Provide your work telephone number. Type or print “N/A” if not applicable.
Item Number 3
Provide your evening telephone number.
Item Number 4
Provide your mobile telephone number. Type or print “N/A” if not applicable.
Item Number 5
Provide your email address. Type or print “N/A” if an item is not applicable.
Part 5. Information About Your Residence
Item Number 1A
List the address where you have lived during the last 5 years.
Item Number 1B
If your current address is different from your mailing address, provide it here.
Item Numbers 1C- 1D
List the other address where you have lived during the last 5 years.
Part 6. Information About Your Parents
If neither one of your parents is a United States citizen, skip this part and proceed to Part 7.
Item Number 1
If your parents married before your 18th birthday, select “Yes.”. If not, select “No.”
Item Number 2
If your mother is a U.S. citizen, select “Yes” and complete Items A. - E. Select “No” if your mother is not a U.S. citizen and proceed to Item Number 3 as directed on the form.
Item Number 3
If your father is a U.S. citizen, select “Yes” and complete Items A. - E. Select “No” if your father is not a U.S. citizen and proceed to Part 7.
Part 7. Biographic Information
Item Numbers 1 - 2
Select the boxes that best describe your ethnicity and race.
Item Number 3.
Select the values that match your height in feet and inches. Do not enter your height in meters or centimeters.
Item Number 4
Provide your weight in pounds.
Item Number 5
Select the box that best describes the color of your eyes.
Item Number 6
Select the box that best describes the color of your hair.
Part 8. Information About Your Employment and Schools You Attended
Provide information on where and when you have worked or attended school during the last 5 years for the complete time period. Include all military, police, and/or intelligence service.
If you worked for yourself, write “self-employed.” If you were unemployed, write “unemployed.”
Part 9. Time Outside the United States
Item Number 1
Provide the total number of days you spent outside the United States during the last 5 years.
Item Number 2
Provide the total number of trips you have taken outside the United States during the last 5 years.
Item Number 3
Provide information for each trip you have taken outside the United States during the last 5 years. Start with the most recent trip and work backwards.
Part 10. Information About Your Marital History
Item Number 1
Select your marital status on the date you filed your Form N-400. If you are single and have never been married, go to Part 11.
Item Number 2
If you are married,indicate if your spouse is a current member of the U.S. Armed Forces.
Item Number 3
Provide the number of times you were married. If you were married to the same person more than one time, count each time as a separate marriage.
Item Number 4
Provide the requested information about your current spouse.
Item Number 5
Select the box to indicate whether your current spouse is a U.S. citizen.
Item Number 6
If your current spouse became a U.S. citizen after birth, select the box that indicates when your spouse became a U.S. citizen and provide the date he or she became a U.S. citizen.
Item Number 7
Provide the requested information if your spouse is not a U.S. citizen.
Item Number 8
Provide the number of times your spouse was married. If he was married to the same person more than one time, count each time as a separate marriage.
Item A. Provide your current spouse’s prior spouse’s full legal name.
Item B. Select your current spouse’s prior spouse’s immigration status.
Item C. Provide your current spouse’s prior spouse’s full date of birth.
Item D. Provide your current spouse’s prior spouse’s country of birth.
Item E. Provide your current spouse’s prior spouse’s country of citizenship or nationality
Item F. Provide the date of marriage of your current spouse with previous spouse(s).
Item G. Provide the date of when your current spouse ended marriage with the prior spouse.
Item H. Select how the marriage ended with the prior spouse.
Item Number 9
If you were married before, provide the requested information about your prior spouse.
Item A. Provide your prior spouse’s full legal name
Item B. Select your prior spouse’s immigration status.
Item C. Provide your prior spouse’s full date of birth.
Item D. Provide your prior spouse’s country of birth.
Item E. Provide your prior spouse’s country of citizenship or nationality.
Item F. Provide the date of marriage with the previous spouse(s).
Item G. Provide the date of when you ended marriage with the prior spouse.
Item H. Select how the marriage ended with the prior spouse.
Part 11. Information About Your Children
Item Number 1
Indicate your total number of children.
Item Number 2
Provide information about all your children listed in Item Number 1, regardless of age.
Part 12. Additional Information About You (Person Applying for Naturalization)
Item Numbers 1- 50. Select “Yes” or “No” for items that are applicable. If any part of a question applies to you or has ever applied to you, you must answer “Yes.” Provide a printed explanation on a separate sheet of paper, if you answer “Yes” to any of the questions in Item Numbers 1. - 44. If you answer “No” to any question in Item Numbers 45. - 50., include a printed explanation on a separate sheet of paper.
Part 13. Applicant’s Statement, Certification, and Signature
Item Number 1a
If you understood the form without the help of an interpreter, select this.
Item Number 1b
If an interpreter helped you in completing the application, select this.
Item Number 2
If you were assisted by a preparer, select this.
Item Number 3
Provide your signature and date of application. A stamped or typewritten name in place of a signature is not acceptable. If you are unable to write in any language, you may place an “X” mark instead of a signature.
Part 14. Interpreter’s Contact Information, Certification, and Signature
Item Number 1
Provide the interpreter’s name.
Item Number 2
Provide the interpreter’s business or organization name.
Item Number 3
Provide the interpreter’s mailing address.
Item Number 4
Provide the interpreter’s daytime telephone number.
Item Number 5
Provide the interpreter’s mobile telephone number.
Item Number 6
Provide the interpreter’s email address.
Item Number 7
Let the interpreter sign and date the application.
Part 15. Contact Information, Declaration, and Signature of the Person Preparing this Application, if Other Than the Applicant
Item Number 1
Provide the preparer’s name.
Item Number 2
If the person who completed this application is associated with a business or organization, provide the preparer’s business or organization name.
Item Number 3
Provide the preparer’s mailing address.
Item Number 4
Provide the preparer’s daytime telephone number.
Item Number 5
Provide the preparer’s mobile telephone number.
Item Number 6
Provide the preparer’s email address.
Item Number 7a
Select if the preparer is an attorney or accredited representative.
Item Number 7b
Select if the preparer is an attorney or accredited representative. Choose whether the preparer's representation in this case extends or does not extend beyond the preparation of this application.
Item Number 8
Let the preparer sign and date the application.
Part 16. Signature at Interview
Complete this part at your interview.
Part 17. Renunciation of Foreign Titles
Do not complete this part until you are instructed to do so at your interview. This part will apply only if you answered “Yes” to Part 12., Items A. and B., in Item Number 4.
Part 18. Oath of Allegiance
Do not complete this part until you are instructed to do so at your interview.
Submission
You may file your Form N-400 online or by mail.
To apply online, create an online account with USCIS and sign your application electronically.
If you will file by mail, the USCIS address to send your materials to will depend on the state in which you live and the delivery service you choose.
If you live in any of the following states: Alaska, Arizona, California, Colorado, Micronesia, Guam, Hawaii, Idaho, Kansas, Mariana Islands, Montana, North Dakota, Nebraska, Nevada,Oregon, Utah, Washington, and Wyoming, mail your form to:
For U.S. Postal Service (USPS):
USCIS
P.O. Box 21251
Phoenix, AZ 85036
For FedEx, UPS, and DHL deliveries:
USCIS
Attn: N-400
1820 E. Skyharbor Circle S
Suite 100
Phoenix, AZ 85034
If you live in any of the following states: Alabama, Arkansas, Connecticut, District Of Columbia, Delaware, Florida, Georgia, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Mississippi, North Carolina, New Hampshire, New Jersey, New Mexico, New York, Oklahoma, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Virginia, Virgin Islands,Vermont and West Virginia, mail your form to:
For U.S. Postal Service (USPS):
USCIS
P.O. Box 660060
Dallas, TX 75266
For FedEx, UPS, and DHL deliveries:
USCIS
Attn: N-400
2501 S State Hwy 121 Business
Suite 400
Lewisville, TX 75067
If you live in any of the following states:Illinois, Indiana, Wisconsin,Iowa,Michigan, Minnesota, Ohio, Missouri and Pennsylvania, mail form to:
For U.S. Postal Service (USPS):
USCIS
P.O. Box 4380
Chicago, IL 60680-4380
For FedEx, UPS, and DHL deliveries:
USCIS
Attn: N-400
131 S. Dearborn, 3rd Floor
Chicago, IL 60603-5517