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  1. 家
  2. 产品
  3. 在线 PDF 表格
  4. 美国
  5. 移民
  6. government application form

US Citizenship Application (Form N-400) – Fillable PDF

  1. 语言 英语
  2. 国家 美国
  3. 活动 移民
  4. 部门 USCIS
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US Citizenship Application (Form N-400) – Fillable PDF

Looking for a quick, error‑free way to fill out the US Citizenship Application (Form N‑400)? With Formize’s built‑in PDF filler you can complete the official USCIS form directly in your browser—no software download, no printing, and no messy handwriting.

Why Use a Fillable PDF for Form N-400?

  • Officially approved format: The PDF you download from USCIS is the exact document the agency will accept.
  • Save time: Type directly into fields, use auto‑complete, and jump between sections with a click.
  • Reduce errors: Built‑in validation highlights missing or incorrectly formatted entries before you submit.
  • Secure storage: Your data stays in the browser until you choose to download or print.

How to Complete the N-400 Online with Formize

Follow these simple steps to fill out the form without ever opening a separate PDF editor.

Common Mistakes and Tips for a Successful Application

  • Double‑check dates – USCIS requires MM/DD/YYYY format.
  • Use the exact spelling of names as they appear on your legal documents.
  • Provide a complete address history for the last five years; missing periods can delay processing.
  • Answer every question. If a question does not apply, select “N/A” rather than leaving it blank.
  • Sign the form electronically after completing all sections; an unsigned form will be rejected.

When you’re ready, simply click the “Fill out this form” button below. The Formize PDF Filler will load, and you can start entering your information right away.

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常问问题

  • Do I need Adobe Acrobat to fill out Form N-400?

    No. Formize’s online PDF filler works in any modern browser, so you never need to install Adobe Acrobat or any other software.

  • Is the fillable PDF the same as the paper version used by USCIS?

    Yes. The PDF is the official form provided by USCIS. The only difference is that you fill it electronically instead of by hand.

  • Can I save my progress and return later?

    Absolutely. While you’re working, click “Save to device” to store a partially completed copy. Reload the file later to continue where you left off.

  • Will USCIS accept an electronically signed N-400?

    USCIS currently requires a handwritten signature on the printed form. After completing the PDF, print it, sign it manually, and mail it as instructed.

  • What if I make a mistake after submitting?

    If you discover an error after mailing, you can submit a corrected form with a cover letter explaining the change. Keeping a digital copy helps you spot errors before printing.

  • Is my personal data safe while using Formize?

    Formize processes the PDF locally in your browser. No data is uploaded to our servers unless you choose to save the file to the cloud.

  • How long does it take to fill out the N-400?

    Most applicants complete the form in 30‑45 minutes when using a fillable PDF, compared to several hours with a paper form.

  • Do I need to attach supporting documents to the PDF?

    Supporting documents are submitted separately with your paper application. The fillable PDF is only for the N‑400 questionnaire.

  • Can I use Formize on a mobile device?

    Yes. The PDF filler works on tablets and smartphones, though a larger screen makes data entry easier.

  • Where can I find the official filing address for the N-400?

    The filing address varies by state. Check the USCIS website or the instructions PDF linked on the same page for the correct address.

如何

如何通过 4 个简单步骤在线免费填写 government application form：

  1. 1
    Click the Fill Out Button
    On this page, click the bright “Fill out this form” button. The Formize PDF Filler app will open in a new tab and load the N‑400 PDF automatically.
  2. 2
    Enter Your Information
    Type directly into each field. Use the navigation pane on the left to jump to any section. The filler validates dates, zip codes, and required fields in real time.
  3. 3
    Review and Sign
    When all fields are completed, click the “Review” button to see a full preview. Add your electronic signature in the signature field.
  4. 4
    Download or Print
    After signing, choose “Download PDF” to save a copy to your computer, or click “Print” to produce a hard‑copy for mailing to USCIS.
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