[Zeppelin]

Because then Internet retailers would all move to the state with the lowest sales tax rate - and we can't have that.

I think the current proposal is such that the tax is based on the buyer's state, not the retailer.

That being said, which address do you use to determine SST? Billing address or shipping address?

I could see people opening credit cards with billing addresses of relatives in states with no/low SST...

[driftdiver]

I can see more black markets opening up as well.