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IDOR SIC Quarterly Reports
The SIC quarterly reports are compiled to provide detail information regarding the types of business collecting the various taxes connected to the retailing of tangible personal... -
Sales and Use Tax Registration Certificate Revocation
Sales and Use Tax Registration Certificate Revocation is a list of taxpayers who have had their Illinois Retailers' Occupation Tax, Service Occupation Tax, Use Tax, or Service...
You can also access this registry using the API.