@dalias i guess more generally would the tax be on AWS or the customer?
Like if your tax rate depends on usage and you have 100 customers pulling 10 kW each to make the numbers round, do you tax at the 10 kW or 1 MW rate if they're independent users under one roof?
Does it change if the customers own the hardware and are just paying for rack space in a colo, or if they're renting a third party server?