Two different programs. Cook County property tax refunds (from overpayment, a successful appeal, or an approved Certificate of Error) are issued by the Cook County Treasurer—check status by PIN/address on the Treasurer's site. The Illinois Property Tax Credit is a state income tax credit (not a county refund) claimed on your Illinois income tax return for taxes paid on your primary residence.
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How do I check my Cook County property tax refund or Illinois property tax credit?
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