Ill. Admin. Code tit. 86, § 131.ILLUSTRATION

*If you are an Illinois retailer engaged in the occupation of making sales of tangible personal property in Illinois and you make sales over a marketplace, see the "YES" box for the treatment of those sales. If you are an Illinois retailer and do not make any sales over a marketplace, the provisions of this chart do not apply to you and you should handle your liability as you did prior to January 1, 2021.

(Source: Amended at 49 Ill. Reg. 8610, effective June 13, 2025)