I'm not sure if I'm missing your comparison, but an accountant doesn't calculate how much/which tax should be paid in real-time based on the business and the us

I'm not sure if I'm missing your comparison, but an accountant doesn't calculate how much/which tax should be paid in real-time based on the business and the user's location and then automatically account for that. I don't know how much it's worth, but properly supporting tax takes a lot of effort to do correctly in real-time.