We are a Scandinavian company that sells electronic services to consumers internationally.
We pay EU VAT but no other sales tax.Around 20% of our sales come from American citizens.Our accountant brought up the question whether we are obliged to pay sales tax in the US for these sales. 
There’s a known case 'Wayfair vs South Dakota' from 2018 that ruled that more than 100k USD _OR_ 200 transactions per year in sales to consumers living in that state mandates sales tax from the company. We are way beyond the transaction threshold in many states since we sell low cost products.We have talked to 2 independent tax experts regarding this but they are not sure and we find it weird because there must be a lot of companies above these thresholds.Is anyone else in this situation and can shed some light on how you solved it?Let’s say we are required to do it, based on the Wayfair prejudicing case, are there any American accountants out there that you can recommend to handle this?There has to be a lot of companies in our position, how do you solve it?