what is the sales tax in chicago?
10.00% [Is this data incorrect?] The Chicago, Illinois sales tax is 10.00% , consisting of 6.25% Illinois state sales tax and 3.75% Chicago local sales taxes.The local sales tax consists of a 1.75% county sales tax, a 1.25% city sales tax and a 1.00% special district sales tax (used to fund transportation districts, local attractions, etc). Chicago Illinois Sales Tax Exemptions.