Schedule I · misdemeanor possession
Wisconsin lists psilocin and psilocybin in Schedule I. Simple possession may be punished by up to one year in jail, a $5,000 fine, or both.
WI legal and access quick reference
Reviewed July 21, 2026Psilocybin law and access in Wisconsin
A concise, source-dated explanation of statewide law, regulated access, and the difference between state and local policy.
Laws and implementation can change quickly. This page is educational information, not legal advice.
No enacted public access program
Wisconsin has no statewide personal-use, retail, dispensary, or regulated psilocybin service program.
Controlled · no statewide access program
Research and proposed legislation do not authorize ordinary possession, commercial sales, or regulated services unless enacted and implemented.
What local policy means
For Green Bay, Madison and Milwaukee, this Wisconsin page is the appropriate quick-reference starting point because no separate municipal action was retained as a distinct local-policy guide. Local rules can change, so verify current official records.
Cities covered by the Wisconsin guide
The statewide explanation above covers Green Bay, Madison and Milwaukee. A separate page appears below only where a documented municipal action adds material local context.
Green BayCovered in Wisconsin guide
MadisonCovered in Wisconsin guide
MilwaukeeCovered in Wisconsin guide
Sources used for this review
This page was checked against the controlling state statutes, enacted laws, agency records, and official bill histories listed below.
Common questions
Is psilocybin legal in Wisconsin?
No. Wisconsin lists psilocin and psilocybin in Schedule I. Simple possession may be punished by up to one year in jail, a $5,000 fine, or both. No statewide public-access program has been enacted.
Does Wisconsin have a regulated psilocybin access program?
No. Wisconsin has not enacted a statewide psilocybin personal-use, retail, dispensary, or regulated service program.
Do city policies change Wisconsin law?
No. A local enforcement-priority policy may affect municipal enforcement, but it does not legalize commercial sale, create statewide legality, or override federal law.
Continue at the right depth
The product-site link provides product-format and business-policy information. It does not change the law described on this page or establish legal access in any jurisdiction.