Illinois Statutes Chapter 410. Public Health § 705/65-15. Collection of tax

(a) The tax imposed by this Article shall be collected from the purchaser by the cannabis retailer at the rate stated in Section 65-10 with respect to cannabis sold by the cannabis retailer to the purchaser, and shall be remitted to the Department as provided in Section 65-30. All sales to a purchaser who is not a cardholder under the Compassionate Use of Medical Cannabis Program Act are presumed subject to tax collection. Cannabis retailers shall collect the tax from purchasers by adding the tax to the amount of the purchase price received from the purchaser for selling cannabis to the purchaser. The tax imposed by this Article shall, when collected, be stated as a distinct item separate and apart from the purchase price of the cannabis.

(b) If a cannabis retailer collects Cannabis Purchaser Excise Tax measured by a purchase price that is not subject to Cannabis Purchaser Excise Tax, or if a cannabis retailer, in collecting Cannabis Purchaser Excise Tax measured by a purchase price that is subject to tax under this Act, collects more from the purchaser than the required amount of the Cannabis Purchaser Excise Tax on the transaction, the purchaser shall have a legal right to claim a refund of that amount from the cannabis retailer. If, however, that amount is not refunded to the purchaser for any reason, the cannabis retailer is liable to pay that amount to the Department.

(c) Any person purchasing cannabis subject to tax under this Article as to which there has been no charge made to him or her of the tax imposed by Section 65-10 shall make payment of the tax imposed by Section 65-10 in the form and manner provided by the Department not later than the 20th day of the month following the month of purchase of the cannabis.