By on Oct 22, 2024 in | 4 comments « All Events This event has passed. Sales & Use October 22, 2018 « Sales & Use Employment » Sales & Use (ST-1) Illinois: Business – Quarterly filers required to file Form ST-1 for sales and use tax collected in the 3rd quarter Add to calendar Google Calendar iCalendar Outlook 365 Outlook Live Details Date: October 22, 2018