An aside: It’s so absurd that someone should have to collect tax on behalf of a jurisdiction they aren’t even in. One the worst outcomes of Amazon reaching critical mass was their making agreements with various states and countries, making the tax collection moat wider and wider.
Yeah, it's a huge distraction from your core business. I work at a company that tries to take care of it for you: https://anrok.com
I suspect (hope) that in a few years most billing/payment systems will take care of this for you (either natively or through a seamless partnership) so you just fill out a few forms and forget about it.
