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  • Application for Business Registration Renewal

  • Business/Occupancy Information

  • New to NAICS Codes? Click HERE (open in a new tab) to find your business NAICS Code.

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  • Registration with the Illinois Department of Revenue is required if you conduct business in Illinois.  If you do not have an account with the Illinois Department of Revenue (IDOR), learn more and register your business at tax.illinois.gov.

  • Business Contact Information

  • Property Information

  • Information is required for each location in West Chicago where business activities/operations occur.  The initial property information is specific to the principal location.  Additional prompts will appear if the business/organization occupies more than one location.


  • Provide two separate emergency contacts for this location and provide cell numbers.  These contacts must have immediate access to the property/building and can identify the location of any fire suppression equipment and hazardous materials in the event of an emergency.

  • Property #2 Information


  • Provide two separate emergency contacts for this location and provide cell numbers.  These contacts must have immediate access to the property/building and can identify the location of any fire suppression equipment and hazardous materials in the event of an emergency.

  • Property #3 Information


  • Provide two separate emergency contacts for this location and provide cell numbers.  These contacts must have immediate access to the property/building and can identify the location of any fire suppression equipment and hazardous materials in the event of an emergency.

  • Property #4 Information


  • Provide two separate emergency contacts for this location and provide cell numbers.  These contacts must have immediate access to the property/building and can identify the location of any fire suppression equipment and hazardous materials in the event of an emergency.

  • Property #5 Information


  • Provide two separate emergency contacts for this location and provide cell numbers.  These contacts must have immediate access to the property/building and can identify the location of any fire suppression equipment and hazardous materials in the event of an emergency.

  • Payment Information

  • Submission of this form must be accompanied by payment.  The registration renewal fee is $110.00 if the application and fee are received or postmarked after December 31st.  (Note that City Hall is closed on November 24 & 25, December 23, 26 and January 2.)  

    Government Agencies/Taxing Bodies and Non-Profit, Religious or Charitable Organizations may skip this page by clicking "Next."

  • Credit card payments are accepted online through the State of Illinois E-Pay System.  The application process is not completed upon payment.  Save your work and then click HERE to pay.  (Open as a new tab to keep this application open.)  Click on "Make a One Time Payment" and select "Business Registration Fee" as the Payment Category.  Provide the business information that matches what is being submitted with this application.  Once the payment is completed, upload a copy of the payment confirmation email to this application.

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  • Business Owner Survey

  • The following questions are optional but will assist us in providing resources and sharing business/funding opportunities based on the responses.




  • Applicant Certification

  • By signing below, I {applicantName126} hereby certify that to the best of my knowledge, this application represents a true and complete representation of the above named entity and person(s) listed.  I also understand that any change to the information contained within this application, including change in ownership of the business or property, change of business name, expansion of business activities, and physical expansion (into adjacent space or additional location) requires a new Certificate of Occupancy Application to be submitted within 30 days of that change.  

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