Wisconsin Notice of Firearm Possession Penalties are the fines and punishments for unlawfully possessing firearms in the state of Wisconsin. Depending on the severity of the offense, and the individual’s prior criminal history, the penalties can range from a simple fine to a lengthy prison sentence. Generally, the penalties can be categorized into three types: misdemeanor, gross misdemeanor and felony. For a misdemeanor charge, the penalty is typically a fine of up to $10,000 and/or up to nine months in jail. Gross misdemeanors can carry fines of up to $25,000 and/or up to 18 months in prison. Felony charges can result in fines of up to $100,000 and/or up to three years in prison. Additionally, individuals convicted of a felony firearm possession charge in Wisconsin may have to forfeit their firearms and may be subject to additional restrictions on their right to possess firearms in the future.