By legislation, Illinois has required marketplace facilitators to collect and remit use tax since January 1, 2020. On May 8, the Illinois Department of Revenue published proposed regulation 150.804 clarifying the state’s marketplace facilitator legislation. Under the proposed regulations, a marketplace facilitator must certify to marketplace sellers that it assumes the rights and duties of a retailer for Illinois use tax purposes, must maintain records of its marketplace sellers, and must clearly indicate to sellers that it is listing goods on behalf of a clearly identified seller. The proposed regulations also provide detail and definitions regarding the $100,000 annual revenue or 200 annual transactions thresholds. Finally, the proposed regulation clarifies that the marketplace requirements apply only to use tax obligations and marketplace facilitators are not authorized to remit sales tax obligations (related to orders fulfilled from in-state inventory).