Form N-400
Fill Form

Form N-400

2025
Trusted by accountants
Trusted by accountants
Official IRS form
Official IRS form

Form N-400 is used by permanent residents of the U.S. to apply for naturalization and become full-fledged U.S. citizens.

Select our fillable Form N-400, open it in our PDF editor, and complete it with the required information. Once you’re done, you can download this document to your device and submit it right away.

Form N-400

2025
Form N-400
Fill Form
Trusted by accountants
Trusted by accountants
Official IRS form
Official IRS form

Form N-400 is used by permanent residents of the U.S. to apply for naturalization and become full-fledged U.S. citizens.

Select our fillable Form N-400, open it in our PDF editor, and complete it with the required information. Once you’re done, you can download this document to your device and submit it right away.

How to Fill Out a Form N-400

Step 1: Gather the required documents and evidence necessary for submitting Form N-400 (Green Card, marriage certificate, reports of previous arrests and convictions).

Step 2: Open Form N-400 in our PDF editor.

Step 3: Check your eligibility box.

Step 4: Provide information about yourself according to the Form N-400 instructions.

Step 5: Complete the details about the interpreter or preparer if it’s someone other than you.

Step 6: Sign and submit the form to the USCIS.

What Is the Form N-400?

Form N-400, also known as the Application for Naturalization, is a document that must be submitted to start the process of becoming a U.S. citizen.

Who Is Required to Fill Out Form N-400?

Any permanent resident of the U.S. who wishes to become a U.S citizen is required to fill out and submit Form N-400. However, they must meet specific eligibility requirements first, such as being a permanent resident for at least 5 years, or at least 3 years if they are married to a U.S. citizen.

When Should You File Form N-400?

You should file Form N-400 when you want to apply for naturalization, 90 days before you complete the continuous residence requirement. The specifics may differ depending on what your eligibility is based on.

What Are the Consequences of Errors or False Information on Form N-400?

The consequences of errors or false information on Form N-400 for citizenship can be quite severe, ranging from delays and denial to deportation and criminal prosecution. The latter is likely if it’s established that you’ve attempted to commit immigration fraud.

Where Do I File the Form N-400?

You should file Form N-400 with the U.S. Citizenship and Immigration Services (USCIS), either electronically or by mail. The easiest option is to create a USCIS account and complete the process there. If you opt for the paper submission, you can find where to mail Form N-400 on the USCIS website.

How to Get Your Form N-400

  1. Open our sample Form N-400
    Open our sample Form N-400
    1

    Open our sample Form N-400

  2. Fill out the required details
    Fill out the required details
    2

    Fill out the required details

  3. Download Form N-400 to your device
    Download Form N-400 to your device
    3

    Download Form N-400 to your device

#1. How do I get a blank Form N-400?

You can get a blank Form N-400 from pdf.net or from the official USCIS website. If you have an account with the USCIS, you can fill out the document directly on the portal.

#2. How long does it take to process Form N-400?

It can take several months to process Form N-400; in most cases, approximately five. The exact time depends on the number of applications the USCIS receives and on whether you’ve provided all the required documentation.

#3. What documents do I need to file Form N-400?

To file Form N-400, you need your Green Card, marriage certification, arrest or conviction reports, evidence of child support, proof of continuous residence and physical presence in the U.S., and more. The complete list can be found on the official USCIS website.

#4. What if my Form N-400 is missing information?

If your Form N-400 is missing information, your application may take longer to process and could even be denied. To make sure this doesn’t happen, contact the USCIS to see what your next steps should be. In some cases, the USCIS will send a Request for Evidence, which you should respond to before the deadline. Also, cross-check your document with a Form N-400 example to make sure everything is correctly filled out.

#5. Can I fill out my Form N-400 online?

You can fill out your Form N-400 online by opening it in our PDF editor and entering information there or completing it directly on the USCIS website. The latter method requires an account with the USCIS.

#6. Is this form free?

This form is free to view and edit, but you need to purchase one of the available subscription plans if you want to download it to your device.

#7. Can I correct mistakes on Form N-400?

You can correct mistakes on Form N-400 by contacting the USCIS and asking for further instructions or by clarifying your error during the naturalization interview. Depending on the significance of the mistake, you may be required to submit a new document.

#8. What is the filing fee for Form N-400?

The filing fee for Form N-400 is $760 for general paper filing or $710 for general e-filing. However, if your annual household income isn’t more than four times the federal poverty line, the fee is reduced to $380. The filing is free if you meet the specific Immigration and Nationality Act requirements with respect to your military service.