Once you are done answering all of the questions, go to Step 2: Gather Documents to see what other documents you need to mail with your application. Then, go to Step 3: Review to make sure you don't have any Incomplete Questions or Red Flags. If you don't have any incomplete questions or red flags, you can proceed to Step 4: Print Application where you can view your N-400 form and print it.
If you have red flags, you must contact an advocate to review your application. You can find an organization near you or online help through our Find Legal Help directory.
When you have printed your application and gathered all of your required documents listed in Step 2: Gather Documents along with the fee to USCIS (or fee waiver), you are ready to review, sign and mail your application.
To find where to mail your N-400 Application, please refer to USCIS' website: https://www.uscis.gov/n-400