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Get the free USCIS N-400 Application for Naturalization

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What is N-400 Form

The USCIS N-400 Application for Naturalization is a government form used by individuals to apply for U.S. citizenship through naturalization.

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N-400 Form is needed by:
  • Individuals seeking U.S. citizenship
  • Applicants with a permanent resident status
  • People with specific residency requirements met
  • Individuals meeting the eligibility criteria for naturalization
  • Those needing to provide personal information for immigration purposes

How to fill out the N-400 Form

  1. 1.
    To access the USCIS N-400 form on pdfFiller, begin by visiting the pdfFiller website and using the search bar to find the form by its official name.
  2. 2.
    Once located, click on the form to open it in the pdfFiller editor where you can start filling it out electronically.
  3. 3.
    Gather the necessary information before starting, such as your full name, address, employment history, marital status, and travel history to ensure a smooth completion process.
  4. 4.
    Navigate through the fillable fields by clicking on each section, entering your information directly into the form as indicated.
  5. 5.
    Use the checkboxes to answer questions that require yes or no responses, ensuring you review all options available in the sections provided.
  6. 6.
    After completing all fields, take time to review your entries for accuracy, ensuring all personal details align with official documents.
  7. 7.
    Finalize the form by clicking on the review tool within pdfFiller, which helps you catch any errors or omissions before submission.
  8. 8.
    Save your completed form by clicking ‘Save’ to keep a copy for your records and download it if needed in PDF format.
  9. 9.
    To submit the form, follow the instructions provided by USCIS, which may include mailing the form and any required documents to the appropriate address.
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FAQs

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Eligibility for the N-400 form requires you to be a permanent resident for at least 5 years or 3 years if married to a U.S. citizen, among other criteria such as good moral character and passing an English and civics test.
You must submit the completed form to U.S. Citizenship and Immigration Services, typically by mailing it to the designated address based on your state, along with supporting documents and the required fee.
Supporting documents often include a copy of your permanent resident card, marriage certificate (if applicable), tax returns, and any documents that prove your eligibility for citizenship.
The N-400 application fee can be paid via check or money order if filing by mail, and if filing online, you can pay directly on the USCIS website using a credit or debit card.
Common mistakes include not disclosing all travel history, leaving sections blank, failing to provide required signatures, and incorrect or incomplete personal information.
Processing times for the N-400 application can vary but typically take several months, depending on the service center handling your case and the current workload.
Yes, after submission, you can track your application status online on the USCIS website using your receipt number provided after your form is successfully filed.
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