State Of Illinois St 1 Form - Web overview secretary of state publications are available in pdf (portable document format) unless stated otherwise. Failure to provide information may result in this form not being processed and may result in a. Web effective january 1, 2021, remote retailers, as defined in section 1 of the retailers' occupation tax act (35 ilcs.
Failure to provide information may result in this form not being processed and may result in a. Web overview secretary of state publications are available in pdf (portable document format) unless stated otherwise. Web effective january 1, 2021, remote retailers, as defined in section 1 of the retailers' occupation tax act (35 ilcs.