How to File Form N-400: Application for Naturalization

If you’re a permanent resident (green card holder) and want to become a citizen of the United States, you may have to file Form N-400, Application for Naturalization. Nobody wants their citizenship application delayed, so it’s a good idea to pay special attention to properly filing the N-400. Before you start your Application for Naturalization (U.S. Citizenship), you should make sure you qualify for citizenship according to USCIS eligibility requirements.

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Tips for Completing Form N-400, Application for Naturalization

When you’re ready to complete your application, follow these tips to make your experience filing for naturalization an easy one.

  • Use a computer to file Form N-400. Lots of people like to fill out forms by hand, but the chances for errors are much greater. Since you would have to use pen, making corrections would be much harder to do on paper than on a computer. allows you to complete the application online with the help of step-by-step software (which also includes error-checking and a review by a licensed immigration attorney)
  • Answer each question honestly.  Incorrect information on your application may make it hard for you to become a citizen. USCIS officers check every detail.
  • If the question doesn’t apply to you, write “N/A”. If the answer to a question is “none,” write “none,” don’t leave the box blank.
  • If you run out of space to answer a question, use a different sheet of paper to continue your answer. Just remember to include your Alien Registration Number and your signature as well as the part and number of the question. Also, include the date.
  • Make sure you’re using the American date format of MM/DD/YYYY. Other date formats may cause confusion.
  • Make sure you have the correct payment amount included in the application package. Application packages that do not have a payment will be returned, further delaying your citizenship application.
  • You might be able to apply for a fee waiver. Check the instructions of the citizenship application to see if you’re eligible.
  • Review your application! Before you put your application in the package to be mailed out, look over it just one last time to make sure that it is error-free.

Bonus Tip!

The USCIS may take many months to process your application, so after you file, you’ll have some time before you will be invited to a citizenship interview.

Use the time it takes the USCIS to process your application studying for the citizenship test. There are two parts to the citizenship test that involve your knowledge of English and American history, politics, and government.

There are many resources online for preparing for the citizenship tests, including this blog.

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