CHICAGO -- The Cook County board has approved the sales tax increase.
The 1% increase lifts Chicago’s total sales tax to 10.25% and is now the highest in the nation.
Board president Toni Preckwinkle's proposed the increase.
Preckwinkle says it would raise almost half a billion dollars a year in new revenue.
Critics say a sales tax increase would drive shoppers to the collar counties, and cost Cook County businesses a lot of money.