The general merchandise sales tax rate for Cook and Lake County is 10% and 8% respectively. The sales tax rate on qualifying food and drugs is 2.25% in Cook County and 1.75% in Lake County. The Village receives one percent of the State's base sales tax rate and an additional one percent Home Rule sales tax.
In addition, the tax rate on food and beverages sold at restaurants in the Cook County portion of Buffalo Grove is 11.0% (e.g. 10% for sales tax and 1.0% for food and beverage tax). In the Lake County portion of Buffalo Grove, the total tax rate on food sold at restaurants is 9.0% (e.g. 8.0% for sales tax and 1.0% for food and beverage tax).