Is Psilocybin Therapy Legal in Montana? (2026)

ILLEGAL
Confidence: High

No — Psilocybin Therapy is illegal in Montana as of 2026.

Key Restriction
Possession and use prohibited
Penalty
Felony
Last Updated
2026-03-25

Law changed in 2023: In 2023, a bill to allow the therapeutic use of psilocybin for certain mental health conditions was introduced but failed to pass. There have been no other significant legislative changes regarding psilocybin.

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Quick Answer

Psilocybin therapy is not legal in Montana. In 2023, a bill to allow the therapeutic use of psilocybin for certain mental health conditions was introduced but failed to pass.

What the Law Says

Montana law classifies psilocybin as a Schedule I controlled substance, making possession a felony. While legislative attempts to legalize for therapeutic use have failed, the state has seen enforcement actions resulting from various triggers.

NCSL Psychedelic Therapy Legislation
Category Details
Patient Access Illegal
Licensed Providers Illegal
Penalties Felony charges for possession or distribution.
Pending Legislation None known
Recent Changes

In 2023, a bill to allow the therapeutic use of psilocybin for certain mental health conditions was introduced but failed to pass. There have been no other significant legislative changes regarding psilocybin.

Enforcement Reality

Psilocybin is illegal in Montana and is strictly enforced. Possession is a felony, and law enforcement actively prosecutes cases, including recent arrests for cultivation and distribution. There is no indication of decriminalization or a shift in enforcement priorities.

Charge Level
Felony
Enforcement Likelihood
Moderate
Common Triggers
Possession during unrelated arrest, Domestic disturbance calls, Trafficking investigations
Common Mistakes

A common mistake is to underestimate the legal risks of possessing psilocybin in Montana. It is a felony offense, and individuals can face significant prison time.

Local Exceptions

None identified. State law applies uniformly across Montana. Local ordinances may still vary — check with your city or county government for any additional rules.

Bottom Line

Psilocybin Therapy is illegal in Montana. This activity can result in criminal charges. Do not assume enforcement is lax — penalties are real. Consult a licensed attorney if you have specific questions.

Montana vs. the Rest of the US

Across the US, accessing psilocybin therapy is fully legal in 2 states, restricted in 0, and illegal in 48. Montana falls in the ILLEGAL category.

View the full 50-state map →

Neighboring States

Laws change at state lines. Here is how bordering states compare on Psilocybin Therapy:

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Frequently Asked Questions

Is accessing psilocybin therapy legal in Montana?
No — Psilocybin Therapy is illegal in Montana as of 2026. Psilocybin therapy is not legal in Montana. In 2023, a bill to allow the therapeutic use of psilocybin for certain mental health conditions was introduced but failed to pass.
What are the penalties for accessing psilocybin therapy in Montana?
Felony charges for possession or distribution.
How strictly does Montana enforce its psilocybin therapy laws?
Psilocybin is illegal in Montana and is strictly enforced. Possession is a felony, and law enforcement actively prosecutes cases, including recent arrests for cultivation and distribution. There is no indication of decriminalization or a shift in enforcement priorities.
What typically triggers enforcement in Montana?
Possession during unrelated arrest, Domestic disturbance calls, Trafficking investigations

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EH
Ethan Harper Independent Legal Researcher

Reviewed by cross-referencing the cited state statute against current legislative databases and regulatory publications.

Last reviewed: 2026-03-25 Method: Statute cross-reference

Sources & Verification

2.
Statute Summary
Montana law classifies psilocybin as a Schedule I controlled substance, making possession a felony. While legislative attempts to legalize for therapeutic use have failed, the state has seen enforceme…
Verified: 2026-03-25 Reviewed by: Ethan Harper Method: Statute cross-reference Confidence: High

This page was reviewed by Ethan Harper by comparing the legal status against the cited state statute. AllowedHere is an informational resource and does not provide legal advice. Consult a licensed attorney for guidance specific to your situation.

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