Susana A. Mendoza – Illinois State Comptroller - Illinois Comptroller's Office

Illinois Tax Season Update

The Illinois Office of Comptroller sends out income tax refunds after receiving the payment information from the Illinois Department of Revenue. The Illinois Department of Revenue began accepting 2020 state individual income tax returns on Friday, February 12th, the same day as the federal Internal Revenue Service. Please note that the filing and payment deadline for 2020 income tax returns (IL-1040) originally due April 15, 2021, was extended to May 17, 2021.

After filing your state income tax with the Illinois Department of Revenue, you can check the status of your refund with the 'Where's My Refund' application available on MyTax Illinois.

Once your return is processed at the Illinois Department of Revenue, the information is sent to the Illinois Office of Comptroller, at which time your refund will be issued. You can check the status of your tax refund payment at Find My Refund. We appreciate your patience during this process.

Government Transparency

The Illinois Office of Comptroller's Public Accountability Report details the revenues, spending and program goals provided by nearly 80 state agencies. In its third year in this web-based portal, the Public Accountability Report allows taxpayers and policymakers to easily track the revenues, expenditures and annual progress and performance of hundreds of state programs in a transparent manner with nearly 20 years of data while maximizing state resources and efficiency.

Fiscal Focus

June 2021

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Illinois State Comptroller

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The official account for Illinois State Comptroller Susana A. Mendoza. Follow us for office services and #ILbudget updates.


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