MO HB40

Establishes excise tax on unauthorized substances (controlled substances and illicit alcoholic beverages) possessed by dealers, with varying rates based on substance type and quantity

Tax rates include: $0.40 per gram for marijuana stems/stalks, $3.50 per gram for other marijuana, $350 per plant with foliation, $50 per gram for cocaine, $200 per gram for other controlled substances sold by weight, and $31.70 per gallon for illicit alcoholic beverages sold by the drink

Requires dealers to obtain tax stamps from the Department of Revenue within 48 hours of acquiring nontax-paid unauthorized substances; law enforcement must report unstamped substance seizures to the Department of Revenue within 48 hours

Creates the "State Unauthorized Substances Tax Fund" with revenues distributed as: 20% to Department of Revenue for collection costs, 10% to Department of Health and Senior Services for drug treatment programs, and 70% to Department of Public Safety for multijurisdictional drug enforcement groups

Establishes the "Unauthorized Substance Tax Commission" consisting of five members to review tax rates and recommend increases to the general assembly; tax information remains confidential and cannot be used in criminal prosecution except for violations of this excise tax