Boo! The 'pumpkin spice tax' could scare away your holiday cheer By: CNBC.com News October 13, 2017 at 09:26 AM EDT MagnifyMoney analyzed roughly 200 pumpkin spice-flavored products and found that the "pumpkin spice tax" could run as high as 133 percent. Read More >> Related Stocks: Dunkin' Brands Group McDonald's Corp Starbucks Corp