Chicago, IL · Cook County
Business Tax Refund Application
Chicago businesses and eligible tax collectors use this application to request a refund of business taxes paid or remitted to the city in error.
What this form is
The application requests a refund of Chicago business taxes paid or remitted to the city in error. It asks for business and account details, the tax type and refund period, the amount requested, and reasons for the claim. The filing instructions list eligibility rules and supporting documents, including proof of payment and tax returns; a separate application is required for each tax.
Who needs it
Taxpayers who paid and remitted tax in error, and tax collectors who collected, remitted, and unconditionally repaid it, may use this application.
How to submit it
Mail the completed application and supporting documents to the Chicago Department of Finance, Tax Division – Refund Unit, 2 N. La Salle Street, Suite 1310, Chicago, Illinois 60602, or email [email protected].
About notarization
No notary is required; the signer certifies the application and attached documents under penalty of perjury, then signs and dates it.
How to submit this form
- 1
Download The Application
Download the Business Tax Refund Application and review its filing instructions.
- 2
Complete The Application
Enter business and account details, select the tax and refund period, state the requested amount, and explain the reason for the claim.
- 3
Gather Supporting Documents
Include proof of payment, original and amended tax returns, proof of customer refunds, and other documents supporting the claim.
- 4
Submit To The City
Mail or email the completed application and supporting documents to the Department of Finance Tax Division – Refund Unit.
Frequently asked questions
- Who can apply for a Chicago business tax refund?
- Eligible applicants include taxpayers who bore the tax and remitted it directly to the city in error, and tax collectors who repaid the tax to the people from whom they collected it.
- What documents must I include with the application?
- The instructions list proof of tax payment, original and amended returns for each refund period, proof of refunds to customers, and any other documents supporting the claim.
- Do I need a notary for the Business Tax Refund Application?
- No. The signer certifies the application and attached documents under penalty of perjury, then signs and dates the application.
- How do I submit the Business Tax Refund Application?
- Mail the completed application and supporting documents to the Department of Finance Tax Division – Refund Unit at the address on the form, or email them to [email protected].
Need something notarized?
This Business Tax Refund Application doesn’t need a notary — but Illinois residents can notarize other documents online with a commissioned online notary.