Yes. Sales tax is levied by the state, not federally, so in every state sales tax is different and which items are subject to sales tax changes. For example, i

Yes. Sales tax is levied by the state, not federally, so in every state sales tax is different and which items are subject to sales tax changes. For example, in Massachusetts, the sales tax on most products is 6.25% so when purchasing most things you must multiply by 1.0625 to figure out how much it will cost. Most uncooked food does not have sales tax, but food served by restaurants does. When eating at a restaurant, you're supposed to tip 15-20% on the total bill pre-tax, though a lot of people tip on the post-tax price depending on how cheap/generous they are. Many restaurants calculate the tip for you, but certainly not most.