I deal with online taxes daily and it’s a pain in the ass collecting for 23 states and going in monthly to each states portal and paying. Cost me around $25k a yr for programs and around 20 hrs a month. Most states are a number of transactions such as 250 -1000 orders but some are price like $100,000 to 175k you start paying. Govt really needs to step in for us small businesses and create a single portal that sends taxes to each state. It’s all nut and poorly done for online retailers. Everyone is different and some portals take hours to do where some are just a few minutes.