Burger King is offering Royal Perks members a one-cent cheeseburger with a $1 purchase on Tax Day, April 15. The deal is available for order-ahead on the BK app and website at participating U.S. locations, excluding breakfast hours, delivery, and certain states. Other food brands like Potbelly, Paris Baguette, and Krispy Kreme are also offering Tax Day deals to help customers refuel after filing their taxes. Krispy Kreme customers can buy a dozen doughnuts and get another dozen for the price of their state's sales tax.