Where are you that workers have to pay a sales tax on their tips? On the question of USA-ian innumeracy, I noticed recently that a Darden restaurant had provid

Where are you that workers have to pay a sales tax on their tips? On the question of USA-ian innumeracy, I noticed recently that a Darden restaurant had provided some pre-calculated tip amounts on the bill (just displayed, not added to the total). The tip levels were 15, 18, and 20% - and they were calculated from the pre-tax total. Convenience, good or bad customer relations, good or bad staff support, slightly more useful than some toll-free survey number, or sign of the coming info-pocalypse due to lack of STEM students? [Yes, it was Olive Garden - more breadsticks?]