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  Maintenance Notice

The Department of Revenue is performing emergency maintenance on the Cook County Taxpayer Portal. The Portal will be unavailable on July 15th, from 2:00PM to approximately 3:30PM. Thank you for your patience while we perform important updates to the Portal.

  Home Rule Tax Update

Welcome to the Online Taxpayer portal!


Effective July 1st, 2024, Cook County Department of Revenue switched to a new ACH payment provider. If your financial institution requires a Company ID to avoid a debit block when paying by ACH, please provide them with the new Company ID, 0000408976.

You will be required to reenter your bank's routing and account number for accounts previously stored on the portal.

The ability to schedule future payments will be temporarily disabled.

We apologize for the inconvenience and thank you for your patience.

Online Taxpayer Portal

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