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Before you continue, please understand that:

- The service you're about to use is a paid service provided to you by a legal U.S. Private Company. We are not associated to the USCIS or any other government agency and our service fee does not include the government's fee all Lawful Permanent Residents are required to pay by law.

- Depending on the service you choose, we will provide you a complete Green Card Renewal or U.S. Citizenship Application Package and also detailed instructions on how to send your documents to the USCIS, as well as continuous support throughout your whole application process.

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Prepare Online Your U.S. Citizenship Application

Get your USCIS Form N-400 for U.S. Citizenship prepared and ready to be filed to the USCIS in just 1 business day.

Our U.S. Citizenship Application Full Service includes the preparation and professional review of all your citizenship documents, unlimited support throughout the whole process and approval guarantee for just $295 + USCIS fee*

Only looking for forms?. Get them free at the USCIS' website.
Start Your Citizenship
Only looking for forms?. Get them free at the USCIS' website.

Online U.S. Citizenship Application
in just 3 easy steps

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Log in into your account or click HERE to start your US Citizenship Application.

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Fill in a simple questionnaire. It won’t take you more than 30 minutes. Don’t worry, if you have any questions our immigration consultants will assist you!.

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Submit your application and pay the preparation fee and that's it!. Within 1 business day we'll send you an e-mail with your Form N 400 prepared and ready to be filed to the USCIS along with your N-400 Cover Letter and your detailed filing instructions. Easy, fast and cheap.

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Applying for U.S. Citizenship Made Simple!

Naturalization is the process through which foreign nationals who have maintained the status of lawful permanent residents for at least 5 years, or 3 if they have been married to a U.S. citizen, apply for U.S. Citizenship through Form N-400. There are additional prerequisites that can affect the applicant’s eligibility for naturalization. You can check out if you qualify for naturalization by using our online free eligibility test HERE.

Over the last past 10 years we have helped thousands of lawful permanent residents to achieve their lifelong dream of becoming U.S. Citizens and open to them a door of opportunities that only the process of naturalization can provide them. In this way, we have devised an online solution to make more simple, from beginning to end, the process of naturalization and filing their citizenship case to the USCIS.

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Naturalization Process

The process of naturalization starts by preparing Form N-400 and filing it along with additional supporting evidentiary documents.
After that, you will receive a notice of action from the USCIS acknowledging the receipt of your citizenship application package, and then you will receive two additional notices of action for the biometrics appointment and for the naturalization interview, click HERE to learn more about the naturalization process.

Throughout the whole process of naturalization, our staff of immigration specialists will assist you in each step of the process to guarantee success in the obtention of your citizenship.

Click here to start your U.S. Citizenship Application now!

Naturalization Timeline

The naturalization process timeline depends on each applicant’s status; but on average, it takes between 5 to 6 months from start to finish.

All applicants will receive 3 notices of actions before they receive a final notice of decision from the USCIS.For more detailed information about the naturalization timeline click HERE

Click here to start your U.S. Citizenship Application now!

Benefits of Becoming U.S. Citizen

Thousands of lawful permanent residents are granted citizenship every year through the process of naturalization, acquiring many rights and benefits exclusive only for citizens, like the ones mentioned below:

  • Protect the rights of your children to remain in the U.S.A.
  • Help your relatives gain citizenship and enter legally.
  • Vote in the elections.
  • Get insurance for you and your family.
  • Open bank accounts.
  • Travel freely anywhere in the world.
  • Live without fear of deportation.

These benefits and rights can also be yours. So what are you waiting for?

You can read more about these benefits HERE

Click here to start your U.S. Citizenship Application now!


We are not asociated with the U.S. Goverment and we do not sell forms. Forms are free and you can get them here:

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I want to apply for citizenship

Amazing service! I worked with this company and they helped me every step of the process, all the way to citizenship! If they were ever not able to answer my calls (rarely has it happened), they would always return them so promptly! Sometimes, even if it was weeekend! they always took the time to answer all of my questions and explained the process where it was unclear to me....

Ana P, Salinas CA
I want to apply for citizenship

It was a pleasure working with this company .they make you feel like family and guide you step by step. They a available when ever you have a question or . concern . They are very genuine, professional and dependable call them today for all your immigration needs . Thanks guys!.

Emmanuella D, Los Angeles CA
I want to apply for citizenship

All I can say is thanks to n400naturalization.com I am now a US citizen with a stable job, working 5 days a week and enjoying America like I never did before. I didn’t know what to do or what to expect, but n400naturalization.com’s immigration consultants explained and answered my questions by e-mail and phone and kept me informed on my case. Thanks a lot guys.

Eduardo Salvatierra Orlando, FL
I want to apply for citizenship

My siblings and I left our country and our parents fifteen years ago to find a better life. We all became naturalized US Citizens, thanks to you, and as a result, we were able to make our parents legal residents and reunite the entire family. Thank you, this means a lot to us.

Perla & Family Lufkin, TX
naturalization online application

U.S. Citizenship Additional Info

Apply For U.S. Citizenship Before Trump’s New Immigration Reform Gets Approved and Comes into Force

President Trump’s new reform to the legal immigration system will affect all people who apply for citizenship based on family ties. We strongly recommend you to apply for citizenship before the new immigration reform gets approved otherwise you could risk your chances to become a U.S. citizen. Click HERE to learn more about this.

Information you must have before starting your citizenship application

After you have passed our citizenship eligibility test be sure to have the following inormation with you before starting your application: Information about your children, information about your parents, information about your trips and your current and previous employs. If you are married or you have been married in the past, be sure to have all the information about: your spouse and his/her previous spouses (in case he/she was married in the past), your previous spouses' information.

Applying for naturalization without a green card

A Green Card is the document that proves your status as lawful permanent resident, status required for applying for naturalization. If your green card is expired, lost or mutilated, then you must first renew/replace it before applying for naturalization. We can help you with your green card renewa/replacement case. Click HERE to know more about it.

The Advantages of Working with us

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We save you 80% in service fees

We charge only $295 because we don’t charge you for an office fee or an immigration attorney fee. Our system is a fast and affordable way to prepare your U.S. Citizenship documents. * USCIS' filing fee not included.

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We are a real american company with a very clean record with the Better Business Bureau which we are proud to show.

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Over the past 10 years we have worked in over 7000 citizenship cases with a 99% approval rate.

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Phone and E-mail support. An Immigration consultant will respond to your questions quickly and accurately. Phone support is available for our paid service during office hours! A real human being you can call directly for any question or concern you might have. We speak spanish too!.

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We're dedicated to safeguarding your personal information when it's stored in our systems. We keep your personal information secure with SSL encryption.

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We never save any of your credit card information. We use third party secure software to process your payment.


  • Free U.S. Citizenship Eligibility Test!
  • Preparation of your N-400 Form for U.S. Citizenship
  • Review of your submitted information and your N-400 Form by our immigration specialists. We make sure your N-400 form is 100% well done with no mistakes.
  • Preparation of your N-400 Cover Letter.
  • Detailed Customized Filing Instructions.
  • Customer Support Agents available during office hoursWe speak spanish too!.
  • Access to our software application 24/7.
  • Personalized Support throughout the whole process of your naturalization. Including helpful tips for your naturalization test and interview at the USCIS.

USCIS' filing & Biometric Fee is $725, not included in the cost of our service.

Disclaimer: N400naturalization.com is not affiliated with USCIS or any government agency. We are not a law firm, do not provide legal advice, and are not a substitute for the advice of an attorney. We are a private company providing self-help services at your direction. If you are looking for blank forms, you can get them for free at USCIS.gov. Our service includes all the documents and instructions you need to file your U.S. Citizenship application to the USCIS reviewed by immigration specialists with over 10 years of experience.