I always figured it was a sales gimmick... hook 'em then reveal the real cost.
The AI summary disagrees with that. Looked around a bit and didn't see anything to disagree. Where'd you find that info?
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You caught me mom...
It does vary by state. Guess I was going by Wisconsin who's always been a stickler about that, then again vending machines have it baked in. There's a large list of exempt uses and organizations here. Farm use is one we are asked about all the time (our horsies are not exempt, darn it). So it IS
simpler to not charge sales tax than back it out of a selling price, shrug
Several sites also mentioned tradition, it's always been added on at the register.
Is Sales Tax Tradition Changing?
Much like the tax rates themselves, the rules and regulations of sales tax change regularly. For example, in
Washington state, it was
illegal for businesses to include sales tax in the total price until a court case in 2012 changed the decision. Retailers and restaurants can include sales tax in the listed price, as long as they clearly indicate that tax is included. In other states, including
California, retailers can post a sign that states “All Prices Include Sales Tax” but must follow certain regulations.
Several states have re-evaluated sales tax regulations, and others may follow, particularly with the growing focus on customer rights. While the U.S. maintains the tradition of adding sales tax at checkout, there's no guarantee it will last forever.