> In all grocery stores I’ve visited, loyalty card discounts are clearly noted on the item's price tag. I've never seen any hidden discounts (or surcharges) th

> In all grocery stores I’ve visited, loyalty card discounts are clearly noted on the item's price tag. I've never seen any hidden discounts (or surcharges) that pop up only at checkout. Yes. A surcharge won't show up there. The most common way to do things is to have a very high base price and give people variable discounts. > decentralizing progressive sales tax collection is rife for fraud. So is distributing sheets of paper that I can exchange for goods and services. It's pretty cheap and easy to do this and I bet it can be completely done offline with security good enough that the biggest issue will be retailers letting people skip the excise tax. As a sidenote - why are people concerned with the government putting a sin tax on meat?