[rootusrootus]

I agree, it is not currently feasible in all cases. But something like AirBNB should be straightforward. Price tags on store shelves also straightforward. As you point out, it's tough for online shopping, at least until you have an established account. For advertising purposes it would be tough.

My guess is the only solution (and it would suck and be met with much resistance) would be to make all the taxes based strictly on where the seller is, not where the buyer is. Then the buyer would have to be on hook for use tax instead of sales tax. States would not like this because most people skip paying use tax altogether.

Or just get rid of sales tax as a thing, and if you want localized taxes put them on property. That's what my state does (plus income tax).

I agree that we're unlikely to see any sane solution in the US in our lifetime.