35 ILCS 200/31-5
"Affixed" means physically or electronically indicated.
"Recordation" includes the issuance of certificates of title by Registrars of Title under the Registered Titles (Torrens) Act pursuant to the filing of deeds or trust documents for that purpose, as well as the recording of deeds or trust documents by recorders.
"Department" means the Department of Revenue.
"Person" means any natural individual, firm, partnership, association, joint stock company, joint adventure, public or private corporation, limited liability company, or a receiver, executor, trustee, guardian or other representative appointed by order of any court.
"Revenue stamp" means physical (until December 31, 2025), electronic, or alternative indicia that indicates the amount of tax paid.
"Value" means the amount of the full actual consideration for the real property or the beneficial interest in real property located in Illinois, including the amount of any lien on the real property assumed by the transferee.
"Trust document" means a document required to be recorded under the Land Trust Recordation and Transfer Tax Act and, beginning June 1, 2005, also means any document relating to the transfer of a taxable beneficial interest under this Article.
"Beneficial interest" includes, but is not limited to:
"Controlling interest" means more than 50% of the fair market value of all ownership interests or beneficial interests in a real estate entity.
"Real estate entity" means any person including, but not limited to, any partnership, corporation, limited liability company, trust, other entity, or multi-tiered entity, that exists or acts substantially for the purpose of holding directly or indirectly title to or beneficial interest in real property. There is a rebuttable presumption that an entity is a real estate entity if it owns, directly or indirectly, real property having a fair market value greater than 75% of the total fair market value of all of the entity's assets, determined without deduction for any mortgage, lien, or encumbrance.
35 ILCS 200/31-5