Sundry decides taxability before the sale, binds each product to the statute, answers the same way every time, and works at the parcel.

Dana Is this product taxable here?
Sal Sundry decides before the sale.
Sal Every product is bound to the statute that controls it, in each jurisdiction.
Sal Our patent-pending classification system makes the answer deterministic.
Sal Same product, same statute, same answer, every time.
Sal And where it happens is the parcel, not a point.