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Frequently Asked Questions

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Maintenance Notice

The Department of Revenue is performing planned maintenance on the Cook County Taxpayer Portal. The Portal will be unavailable starting from September 26^th at 8:00PM to September 27^th at 10:00AM. Thank you for your patience while we perform important updates to the Portal.

Home Rule Tax Update

Welcome to the Online Taxpayer portal!

ACH (E-Check) Payments
If your financial institution requires a Company ID, please use 0000408976.

Credit Card Payments
There will be a fee for payments made by credit card. The fee is 2.08% of the transaction amount.

Online Taxpayer Portal

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Register a new business (PDF)
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Obtain a General Business License
Amusement Tax Exemption
Bulk Sales or Transfer
Voluntary Disclosure Program
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Individual Use Tax

Department of Revenue

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