Fill out Form N-400 Online in 2025

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What is Form N-400?

The form N-400 is the application for U.S. citizenship, required for permanent residents (green card holders) seeking to become naturalized citizens. It collects personal information to determine eligibility for citizenship, including residency duration, moral character, and understanding of U.S. history and government.

What is Form N-400 used for?

The form N-400 is essential for individuals looking to make a significant change in their status. Here's what it's used for:

  • To apply for U.S. citizenship through naturalization.
  • To demonstrate continuous residence and physical presence in the U.S.
  • To confirm an understanding of English and U.S. history and government.

How to fill out Form N-400?

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  1. 1

    Start by carefully reading all instructions on the N-400 form to understand the requirements.

  2. 2

    Fill in each required field with accurate information. Do not leave any applicable sections blank.

  3. 3

    For any sections that do not apply to you, enter "N/A" to indicate "Not Applicable."

  4. 4

    Gather all necessary documents and evidence you need to support your application.

  5. 5

    Sign the form after completing it. Refer to official guidance on whether an electronic signature is accepted.

  6. 6

    Pay the application fee, if applicable, as per the instructions on the form.

  7. 7

    Submit the form and supporting documents to the address provided in the form's instructions.

Who is required to fill out Form N-400?

Form N-400 is filled out by lawful permanent residents applying for U.S. citizenship through naturalization.

U.S. Citizenship and Immigration Services (USCIS) uses the completed Form N-400 to assess the applicant's eligibility for citizenship.

When is Form N-400 not required?

Not everyone needs to complete the form N-400. Children born abroad to U.S. citizen parents may not require this form if their parents have already fulfilled the necessary legal steps for the child to acquire citizenship.

Additionally, individuals who have already acquired U.S. citizenship through naturalization or derivation do not need to submit this form. It's important for these individuals to consult with legal experts or official guidelines to confirm their status and understand any other documentation they might need.

When is Form N-400 due?

The deadline for the Form N-400, Application for Naturalization, is not set to a specific date. Instead, it should be submitted when an individual decides they meet all the eligibility requirements to apply for U.S. citizenship.

Submitting the Form N-400 is a significant step in the naturalization process, and it's important to ensure all information is accurate and complete before submission.

How to get a blank Form N-400?

To get a blank form N-400 issued by U.S. Citizenship and Immigration Services, visit our platform where the template is pre-loaded in our editor, ready for you to fill out. Remember, while we help you prepare and download the form, we don't assist in submitting it.

How to sign Form N-400?

To sign Form N-400, you can use a wet signature in black ink. Check the latest guidelines for the most current information.

PDF Guru supports the creation of simple electronic signatures.

Where to file Form N-400?

The N-400 can be submitted online through the official USCIS website. This method allows for a quick submission process and easy tracking.

Alternatively, it can also be sent by mail to the designated address provided by the USCIS, following their specific instructions for mailing.

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Frequently asked questions

  • How long does it take to get citizenship after filing N-400?

    The entire naturalization process, including application processing, interview, and oath ceremony, typically takes 18-24 months. The average processing time for Form N-400 is about 15.5 months.

  • How much is the fee for the N-400 application?

    The fee for Form N-400 is non-refundable and varies based on the applicant's circumstances. Generally, it ranges from $640 to $1,170, depending on whether you are eligible for a fee reduction or waiver.

  • What documents do I need for N-400?

    You need to submit the following documents with Form N-400: Proof of green card holder status, application fee payment, proof of current marital status, proof of identity, proof of military service (if applicable), proof of medical disability (if applicable), and additional documents like marriage certificates, divorce papers, and birth certificates, depending on your circumstances.

  • What happens if I made a mistake on my N-400 application?

    If you made a mistake on your N-400 application, it could result in delays or even denial. It is crucial to fill out the form completely and correctly to avoid these issues.

  • What additional evidence should I provide for the N-400 application?

    Additional evidence may include two identical recent passport-style photos (if you live abroad), copies of the front and back of your Form I-551 (Permanent Resident Card), documents showing your current legal marital status, evidence of a legal name change, proof of spouse’s U.S. citizenship (if applicable), and documents related to children or dependents listed on the form.

  • What happens if N-400 is denied?

    If your N-400 application is denied, USCIS will send a Notice of Action explaining the reasons for the denial. You can appeal the decision or reapply if you address the issues mentioned in the notice.

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