Monday, December 2, 2019: Tax Bills for Tax Year 2019 First Installment posted online.
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Tax Bills for the First Installment will be available at cookcountytreasurer.com for taxpayers who wish to submit early payment.
Tuesday, March 3, 2020: Tax Year 2019 First Installment Due Date
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In Cook County, the due date for the First Installment property taxes is always the first business day in March.
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According to Illinois law, the First Installment taxes are 55% of the prior year’s total tax (or 55% of the adjusted tax if an assessment certificate of error is certified by the previous November 30).
Friday, May 8, 2020: 2018 Annual Tax Sale
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If the taxes for Tax Year 2018 (due in 2019) are delinquent, they are offered for sale to investors at the Annual Tax Sale.
The due date for the Tax Year 2018 Second Installment was Thursday, August 1, 2019.