Wisconsin loses millions in marijuana tax revenue to border states

As Wisconsin maintains prohibition, neighboring states' legal markets capture tax dollars that could flow to the state.

FILE — harvest · My 420 Tours / CC BY-SA 4.0

Wisconsin is forgoing substantial marijuana tax revenue as consumers cross state lines to purchase cannabis in neighboring jurisdictions with legal adult-use or medical markets, according to reporting by WBAY. The revenue leakage underscores the fiscal cost of Wisconsin's continued prohibition stance amid a regional wave of legalization.

The loss occurs against a backdrop of legislative activity in Wisconsin. Democrats have filed multiple legalization bills since February 2026, including measures to legalize both adult-use and medical cannabis and to regulate intoxicating hemp products. However, these bills have not advanced to law, leaving Wisconsin's market closed while border states capture the tax base.

The revenue gap appears likely to persist absent legislative change. Cannabis Business Times, Foley Hoag, and WPR have covered the legalization push; watch whether Democratic-backed legalization bills gain traction in the coming session, which would be the primary lever for recapturing lost tax revenue.