To facilitate the form filers, the federal agency has an online fee calculator and many forms that can be submitted online.
The fee calculator shows flat fees and variable fees. According to the USCIS, it always has up-to-date information and provides exact fees for forms processed at lockbox facilities of the agency. If the fee is variable, the calculator will ask relevant questions to arrive at the correct answer.
The USCIS allows you to submit an number of forms online. Using the online system is secure and can also help you avoid common mistakes, according to the agency. To submit an online application, you have to first create an online account. Some popular online forms include the N-400, I-90, and I-130.