For tax periods beginning on or after July 1, 2023, the excise tax on vapor products is at the rate of fifteen cents ($0.15) per milliliter of consumable nicotine liquid solution or other material containing nicotine that is depleted as a vapor product is used. For tax periods prior to July 1, 2023, the excise tax on vapor products is at the rate of five cents ($0.05) per milliliter of consumable nicotine liquid solution or other material containing nicotine that is depleted as a vapor product is used.