Sep 02, 2020 · In the last step of the online N400 application, there is a question which says: Additional evidence you want to provide. You can provide additional documents that support your application and help explain any of your responses on the application. If you want to provide additional evidence now, upload any documents below.. Therefore, it’s worthwhile to understand where other applicants have run into trouble. If you believe one of the following scenarios may affect you, speak to an immigration attorney. Jun 30, 2021 · Filing your Form N-400 online You must create a USCIS online account to file your Form N-400 online. Having an online account will also allow you to: Pay your filing fee online Check the status of your case Receive notifications and case updates View personalized case completion date estimates Respond to requests for evidence.