Michigan
Psilocybin is decriminalized in Michigan as of 16 Aug 2026. City level only; illegal under state law.1
- Checked against 2 cited sources at this review.
1. What the law is
Local deprioritization resolutions: Ann Arbor (Sep 21, 2020), Detroit (Nov 2, 2021 ballot Proposal E), Hazel Park (Mar 22, 2022), Washtenaw County (2021), Ferndale (Feb 27, 2023), Ypsilanti (Jan 9, 2024). Psilocybin remains Schedule 1 under state law (MCL 333.7404).1
Six Michigan cities and counties have deprioritized enforcement, beginning with Ann Arbor in 2020 and running through Detroit and Washtenaw County in 2021, Hazel Park in 2022, Ferndale in 2023 and Ypsilanti in 2024. State law still puts psilocybin in Schedule 1.
Psilocybin is decriminalized at the city level in Michigan, with measures adopted in Ann Arbor (2020), Washtenaw County (2021), Detroit (2021), Hazel Park (2022), Ferndale (2023), and Ypsilanti (2024). Decriminalization in this context means deprioritization, not legality. The city resolutions direct local police to treat investigations and arrests of adults for entheogenic plants and fungi, including psilocybin mushrooms, as the lowest law enforcement priority. Detroit adopted the same instruction by ballot measure (Proposal E), and in Washtenaw County the prosecuting attorney has adopted a policy of declining to charge personal use, growth, and possession cases. None of these actions changes the underlying law. Psilocybin remains a Schedule 1 controlled substance under Michigan state law (MCL 333.7404), and it remains illegal under federal law. State and federal authorities retain full power to enforce those laws anywhere in Michigan, including inside the listed cities. In practice, local deprioritization lowers the chance that municipal police will pursue a case; it does not create a right to possess, cultivate, or distribute psilocybin, and it offers no protection elsewhere in the state.
Michigan's six local measures form one of the largest clusters of municipal psilocybin deprioritization in the United States, accumulated steadily between 2020 and 2024. Statewide change has not followed. HB 4686 (2025), which would exempt adults with a PTSD diagnosis from state psilocybin and psilocin penalties, has sat in the House Committee on Families and Veterans since June 2025 without further action. Decriminalize Nature Michigan continues to pursue a statewide decriminalization ballot initiative. Until either path advances, the near-term pattern is likely continued city-by-city adoption while psilocybin remains Schedule 1 under state law.
2. Pending legislation
Introduced but not yet law. If a bill passes, this record changes with it.
HB 4686 (2025): would exempt adults with a PTSD diagnosis from state psilocybin/psilocin penalties; introduced Jun 25, 2025, in House Committee on Families and Veterans with no further action. Decriminalize Nature Michigan continues pursuing a statewide decriminalization ballot initiative.
3. History
The laws behind today’s status, when each took effect, and every review since, in order.
Ann Arbor City Council passes a resolution (Sep 21, 2020) making enforcement against entheogenic plants and fungi, including psilocybin, the city's lowest law enforcement priority.
Decriminalized status takes effect.
Washtenaw County Prosecuting Attorney issues Policy Directive 2021-06 (Jan 12, 2021), declining to charge personal use, growth, and possession of entheogenic plants and fungi countywide.
Detroit voters approve ballot Proposal E (Nov 2, 2021), making adult personal possession and therapeutic use of entheogenic plants the city's lowest law enforcement priority.
Hazel Park City Council passes a resolution (Mar 22, 2022) deprioritizing enforcement against entheogenic plants and fungi.
Ferndale City Council passes a deprioritization resolution (Feb 27, 2023) covering entheogenic plants and fungi.
Ypsilanti City Council passes a deprioritization resolution (Jan 9, 2024) covering entheogenic plants and fungi.
HB 4686 introduced in the Michigan House (Jun 25, 2025); the bill would exempt adults with a PTSD diagnosis from state psilocybin and psilocin penalties. It was referred to the House Committee on Families and Veterans, with no further action to date.
Michigan's status held. The bill listed as pending had long since died and was replaced with HB 4686, introduced in 2025 and sitting in committee, and a source that covered only cannabis was swapped out.
A note in Michigan's entry described an old decriminalization bill as an Oregon-style licensing bill and put it in the wrong session. Corrected against the legislature's record.
4. Trials in Michigan
Interventional psilocybin trials with at least one study site in Michigan, drawn from ClinicalTrials.gov, EU CTIS, and ISRCTN. Registry data is reported by sponsors and shown as filed.
Recruiting, active, completed and closed add up to the 2 trials with a study site in Michigan, as of Aug 2026. Closed covers trials terminated, suspended, withdrawn or left unverified.
| Registry ID | Trial | Phase | Sponsor | Status | Started |
|---|---|---|---|---|---|
| NCT05128162 (opens in new tab) | Open-label Study to Assess the Safety and Efficacy of Psilocybin With Psychotherapy in Adult Participants With Fibromyalgia (opens in new tab)Site at Chronic Pain and Fatigue Research Center, Ann Arbor | Phase Phase 2 | Sponsor Kevin Boehnke | Status Completed | Started |
| NCT05711940 (opens in new tab) | Efficacy, Safety, and Tolerability of Two Administrations of COMP360 in Participants With TRD (opens in new tab)two sites in Ann Arbor | Phase Phase 3 | Sponsor COMPASS Pathways | Status Active, not recruiting | Started |
ClinicalTrials.gov data courtesy of the U.S. National Library of Medicine.
5. Common questions
Is psilocybin legal in Michigan?
Psilocybin is decriminalized in Michigan as of 16 Aug 2026. City level only; illegal under state law.
Are magic mushrooms ("shrooms") legal in Michigan?
"Magic mushrooms" and "shrooms" are common names for fungi that contain psilocybin. Psilocybin is decriminalized in Michigan as of 16 Aug 2026. City level only; illegal under state law. Some laws control the compound and the fungus separately, so this record states the position for psilocybin in Michigan.
Sources and confidence
Every status line is checked against the primary sources below. How each record is graded for confidence is set out in the methodology.
- 1.legislature.mi.gov (opens in new tab) · legislature.mi.gov
- 2.Marijuana Moment.Marijuana Moment (opens in new tab) · marijuanamoment.net
Cited at the review
This information is for educational purposes only and does not constitute legal advice. Laws change frequently, and enforcement practice can differ from the letter of the law. Verify current status with local authorities before relying on this record.
Changes to this record
Every change we have made to this record, dated, corrections included. Nothing changes silently.
A note in Michigan's entry described an old decriminalization bill as an Oregon-style licensing bill and put it in the wrong session. Corrected against the legislature's record.
Michigan's status held. The bill listed as pending had long since died and was replaced with HB 4686, introduced in 2025 and sitting in committee, and a source that covered only cannabis was swapped out.
Michigan: psilocybin legal status. The Psilocybin Record. Accession US-MI-001. Status as of 16 Aug 2026. https://psilocybinlegalization.com/record/michigan
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