Property Tax Bill
In Cook County, the due date for the First Installment Property tax is usually the first business day in March. The First Installment is simply a down payment of 55% of the prior year’s tax bill. The Second Installment due date varies. This bill is the “real” bill and reflects any new assessed values, exemptions, new state equalization factor, and taxing-district tax rates. The Second Installment is usually mailed in late summer or fall. The property tax bill can be paid at any Chase Bank, online by using the Cook County Treasurer's website or you may use the return envelope supplied with your tax bill. Please note that only payments mailed through the United States Postal Service in envelopes bearing a United States Postal Service postmark (not postage meter) will be recorded as paid on the date the payment was mailed.