Psilocybin is illegal in Wisconsin in 2026, with no decriminalized cities and no legal access program, even though Madison is a major hub for federally approved psilocybin research.
Wisconsin is a state where psilocybin policy has stood still while psilocybin science moved in next door. As of 2026, psilocybin and psilocin remain Schedule I controlled substances statewide: possession, cultivation, and sales are all illegal, and no Wisconsin city has passed a decriminalization measure. The closest the state has come to reform was a bipartisan 2023 proposal (SB 727 and AB 753) that would have funded a UW-Madison pilot studying psilocybin-assisted therapy for veterans with treatment-resistant PTSD. It never reached a floor vote and failed to pass on April 15, 2024, and had not been revived as of mid-2026. The twist is that Madison is one of the country's most important psilocybin research hubs: the UW-Madison School of Pharmacy hosts the Center for Psychedelic Research and Education, and the Madison-based Usona Institute runs FDA-regulated clinical trials of psilocybin for major depressive disorder. For now, lawful options for Wisconsin residents are limited to enrolling in federally sanctioned clinical trials, microscopy-only spore purchases, legal amanita muscaria and functional mushroom products, or travel to licensed programs in Colorado or Oregon.
Possession
Possessing psilocybin mushrooms is illegal statewide under Wisconsin's Schedule I controlled substance law. A first offense is a misdemeanor punishable by up to one year in jail and a $5,000 fine; anyone with a prior drug conviction can be charged with a Class I felony carrying up to 3.5 years.
Cultivation
Growing psilocybin mushrooms is treated as manufacturing a Schedule I controlled substance and is a felony in Wisconsin, with penalties that scale by weight.
Retail / purchase
No psilocybin purchase is legal in Wisconsin in any form — the state has no licensed dispensaries, healing centers, or service centers. The only mushroom products sold legally are non-psilocybin items such as spore syringes for microscopy, amanita muscaria, and functional mushrooms like lion's mane.
Spores
Psilocybin spores contain no psilocybin and are legal to buy and possess in Wisconsin for microscopy and taxonomy purposes; Wisconsin has no spore-specific ban. The states that do ban spores are California, Georgia, Idaho, and — since Florida's HB 651 took effect on July 1, 2025 — Florida. Germinating spores in Wisconsin is a different matter: once mycelium or fruiting bodies form, the material contains psilocybin and cultivation is charged as manufacturing a Schedule I controlled substance.
Amanita muscaria
Amanita muscaria is legal in Wisconsin — it is not scheduled under state or federal law, so it can be bought, sold, and possessed here. Louisiana is the only state with an outright ban on amanita for human consumption, though a few states have added age limits (21+) or product-format rules; Wisconsin has neither. Amanita is a different drug from psilocybin — its active compounds, muscimol and ibotenic acid, act on GABA rather than serotonin receptors, and dosing is much less forgiving, so treat product labels and 'shroom' marketing with caution.
Recent changes
In November 2023, a bipartisan group of lawmakers introduced SB 727, with Assembly companion AB 753, to create a 'medicinal psilocybin treatment fund' and a UW-Madison pilot program studying psilocybin-assisted therapy for veterans age 21+ with treatment-resistant PTSD. It never got a floor vote and failed to pass on April 15, 2024, when the 2023-2024 session adjourned. As of July 2026 the measure has not been reintroduced, no psilocybin bill has advanced in the 2025-2026 session, and no Wisconsin city has adopted a decriminalization or deprioritization measure.
First-offense possession is a misdemeanor (up to 1 year in county jail and a $5,000 fine) under Wis. Stat. 961.41(3g). A second or subsequent offense is a Class I felony (up to 3.5 years and a $10,000 fine). Manufacturing or delivering psilocybin scales by weight: 100 grams or less is a Class G felony, more than 100 up to 500 grams a Class F felony, and more than 500 grams a Class E felony — all carrying multi-year prison exposure.
Legal options for Wisconsin residents
The nearest legal psilocybin access for Wisconsin residents is a state-licensed healing center in Colorado or a licensed psilocybin service center in Oregon. Both programs are open to adults 21+ regardless of residency, both require a supervised on-site session with a licensed facilitator, and neither allows product to be taken home or carried back to Wisconsin — bringing psilocybin into the state remains a felony. Wisconsin residents may also be able to join a federally sanctioned clinical trial (Madison is an active trial site). Closer to home, only non-psilocybin products are legal: spores for microscopy, amanita muscaria, and functional mushrooms.
See also: can you buy magic mushrooms online legally? · shroom delivery: legal or scam?
FAQ
Are shrooms legal in Wisconsin?
No. Psilocybin and psilocin are Schedule I controlled substances in Wisconsin, so possessing, growing, or selling magic mushrooms is illegal statewide in 2026. Unlike some states, Wisconsin has no decriminalized cities and no medical or regulated-access program.
Are psilocybin spores legal in Wisconsin?
Yes, with a big caveat. Spores contain no psilocybin, and Wisconsin has no spore-specific ban — the states that do are California, Georgia, Idaho, and Florida (effective July 1, 2025) — so buying them for microscopy or taxonomy is legal here. Germinating them is where legality ends: once the material contains psilocybin, growing it is felony manufacturing under Wisconsin law.
Did Wisconsin pass the psilocybin bill for veterans?
No. The bipartisan 2023 bills (SB 727 and AB 753) would have funded a UW-Madison pilot studying psilocybin therapy for veterans with treatment-resistant PTSD, but they failed to pass when the session ended on April 15, 2024, and had not been reintroduced as of July 2026.
Is amanita muscaria legal in Wisconsin?
Yes. Amanita muscaria is not a controlled substance federally or in Wisconsin, so it is legal to buy and possess. Louisiana is the only state with an outright ban, and a few states add 21+ age limits or format restrictions that Wisconsin does not have. Amanita is not a 'magic mushroom' substitute — muscimol and ibotenic acid act on different receptors than psilocybin, effects and dosing differ sharply, and product potency is inconsistent, so read labels and research dosing carefully.
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- Wisconsin SB 727 — Medicinal psilocybin treatment fund and UW-Madison PTSD pilot (2023-2024 session; failed 04/15/2024) (accessed 2026-07-28)
- Bipartisan Wisconsin Lawmakers File Bill To Create Psilocybin Research Pilot Program For Military Veterans With PTSD — Marijuana Moment (Nov 2023) (accessed 2026-07-28)
- Psilocybin Charges and Penalties in Wisconsin — Grieve Law (current Wisconsin statute guide, reflecting law in force 2026) (accessed 2026-07-28)
- Wisconsin Statutes 961.41 — Prohibited acts A; penalties (current through 2026): first-offense possession up to $5,000/1 year, repeat = Class I felony, manufacture/delivery Class G/F/E by weight (accessed 2026-07-28)
- Florida HB 651 (2025) — added Florida to the list of states banning psilocybin spore sale/distribution, effective July 1, 2025 (accessed 2026-07-29)
- Center for Psychedelic Research and Education — UW-Madison School of Pharmacy (accessed 2026-07-29)
- Usona Institute (Madison, WI) — FDA-regulated psilocybin clinical trials for major depressive disorder (accessed 2026-07-29)