Navigating Montana’s Cannabis Laws: Everything You Need to Know

Shruti Tangirala
September 5, 2024

Montana’s path to cannabis legalization has transformed the state’s landscape, creating new opportunities for consumers and businesses alike. Whether you’re a Montana resident, visitor, or aspiring cannabis entrepreneur, staying informed about the state’s cannabis laws is essential for legal and responsible use. 


This guide will cover everything you need to know about Montana’s cannabis regulations, from possession limits to business licensing, ensuring that you can navigate the state's evolving cannabis industry with confidence. Let’s dive into Montana’s cannabis laws and what they mean for you.

Is Cannabis Legal in Montana?

Recreational cannabis is legal in Montana as of January 2021. Medical cannabis has been legal in Montana since 2004. 

When Did Montana Legalize Cannabis?

Montana's journey with cannabis began in 2004 when voters approved the state’s first medical marijuana law, thanks to the support of the Marijuana Policy Project (MPP). Fast forward to January 1, 2021, and the state took a bold step by legalizing recreational cannabis with the passage of Initiative 190. This initiative allows adults to legally use and possess limited amounts of marijuana, marking a significant milestone in Montana's evolving cannabis landscape.

A calendar opened to January 2021 with the 1st circled in red.

What Is the Legal Consumption Age for Cannabis in Montana?

Adults aged 21 or over are allowed to legally purchase and consume recreational cannabis in limited amounts. For those aged 18 and up, access to medical marijuana is also available, provided they are registered cardholders, ensuring that those who need cannabis for health reasons can obtain it safely and legally.

Where Can I Legally Purchase Cannabis in Montana?

In Montana, recreational marijuana sales are permitted only in designated "green counties," where licensed dispensaries operate legally. These counties include all eight in Glacier Country—Flathead, Glacier, Lake, Lincoln, Mineral, Missoula, Ravalli, and Sanders—offering residents and visitors access to legal cannabis. On the other hand, "red counties" are areas where recreational marijuana sales remain illegal, as the majority of voters opposed Initiative 190. 

What Is the Legal Amount of Cannabis to Carry in Montana?

Starting January 1, 2021, adults 21 and older in Montana can legally possess and use up to one ounce of marijuana without facing criminal penalties. However, it's important to note that consuming or possessing marijuana, including medical cannabis, is still banned in public places and certain other areas. Additionally, federal law prohibits marijuana use on all federal lands and waters.

How Much Marijuana Can I Possess in Montana?

In Montana, there are legal limits set based on THC content. For example, you can possess up to 800 milligrams of THC in edibles, such as gummies or baked goods, or up to 8 grams of cannabis concentrates like wax or oil.


While these possession limits are lenient, it's important to understand that exceeding them can still result in legal consequences. Possessing more than one ounce but less than two ounces can lead to civil penalties, including a fine of up to $200. Possession of more than two ounces escalates to a criminal offense, potentially leading to jail time and significant fines, depending on the amount.


For medical marijuana cardholders, the possession limits are slightly more generous. Cardholders may possess up to one ounce of marijuana, four mature plants, and four seedlings. However, they must also follow strict guidelines regarding where and how their marijuana is stored and consumed, as well as limitations on public possession and use.

What Is the Legal Amount of Cannabis to Sell in Montana?

Up to 1 ounce of marijuana per transaction can be purchased in Montana. This includes 800 milligrams of edibles or 8 grams of concentrate. It is illegal to possess larger quantities of marijuana. 


However, from January 1, 2022, until July 1, 2025, only dispensaries that are registered under the Montana Medical Marijuana Program can sell recreational cannabis products in the market. The goal of this moratorium is to prevent an overly rapid expansion of the market, addressing concerns from local governments and residents who believe it may already be reaching saturation.

A young man is looking around in a dispensary with shelves of cannabis products in the background.

How Much Tax Will I Pay on Cannabis in Montana?

In Montana, marijuana is subject to both state and local taxes applied at the retail level. The state imposes a 4% tax on medical marijuana and a 20% tax on adult-use sales. Counties have the option to impose an additional local tax of up to 3% on both medical and recreational marijuana sales.


Local governments also have significant authority over cannabis businesses. They can enforce zoning restrictions, pause the issuance of new licenses, and control the density of dispensaries. This power has been especially important in cannabis-friendly areas like Missoula, where there are ongoing discussions about limiting the growth of dispensaries due to concerns over their increasing numbers.

What Cannabis Products Are Available in Montana?

Cannabis is available in various forms in Montana, including marijuana flower, edibles and drinks, topicals like balms and salves, and concentrated extracts.

Does Montana Allow the Sale of Synthetic Cannabis Products?

Montana has recently taken steps to tighten regulations on cannabis by enacting a ban on synthetic marijuana products, including Delta-8 THC, which is typically derived from hemp. This move is part of the state’s broader effort to ensure that all cannabis products are subject to strict regulations and testing to protect consumer safety.


The ban on synthetic marijuana products was passed on May 22, 2023, when Governor Greg Gianforte signed HB 948. This new legislation directly impacts any person or business involved in the manufacturing, processing, or sale of synthetic marijuana products, marking a significant shift in Montana’s approach to cannabis regulation.

Does Montana Grant Cannabis Licenses to Native American Tribes?

Montana has introduced a combined-use license specifically for the state's eight federally recognized tribes or entities majority-owned by these tribes. This license allows both cultivation and dispensary operations at the same location. However, it's important to note that possessing and consuming marijuana on Indian Reservations in Montana is complex, as federal marijuana laws, which classify marijuana as a Schedule 1 controlled substance, still apply in Indian Country. Additionally, each tribe has its own approach to marijuana legalization, which can further impact how these laws are enforced. Here’s a quick overview:

  • Eligibility: Available only to federally recognized tribes in Montana or businesses majority-owned by these tribes.
  • License Details: Includes one tier 1 canopy license for cultivation and one dispensary license, both for the same premises.
  • Location Requirements: Must be within 150 air-miles of the tribe's reservation or service area. If located in a county that voted against Initiative 190 in 2020, local government approval is required.
  • Compliance: Licensees must meet all standard cannabis licensing requirements, including fees and taxes.
  • License Limit: Each tribe or majority-owned business can hold only one combined-use license at a time. Another can be obtained only if the previous license is relinquished, lapses, or is revoked.

This license offers a unique opportunity for tribes to participate in Montana's cannabis industry while ensuring compliance with state regulations.



A Native American man is ringing up a customer at a dispensary.

Can I Grow Cannabis Plants at Home in Montana?

Adults in Montana are allowed to cultivate up to two mature marijuana plants and two seedlings for personal use in a private residence, with certain restrictions. Medical marijuana cardholders have the option to grow up to four mature plants and four seedlings. However, all plants must be kept out of public view.

How Does Cannabis Consumption Impact My Employment in Montana?

Cannabis consumption in Montana can have significant implications for your employment. 

  • On-Duty Use: Employers are not required to allow or accommodate recreational marijuana use in the workplace or on their property. They can take action if an employee violates workplace drug policies or is intoxicated by marijuana while working.
  • Disciplinary Actions: Employers are permitted to discipline or even terminate employees who violate drug policies or work under the influence of marijuana. This includes the right to refuse to hire someone based on marijuana use that impacts their job performance.
  • Contract Provisions: Employers can include clauses in contracts that prohibit the use of marijuana, even for medical purposes, if it interferes with job duties.
  • Off-Duty Conduct: Under the amended lawful off-duty conduct statute, marijuana is considered a "lawful product." This means that employers cannot discriminate against you for legally using marijuana off the job during non-working hours, as long as it doesn’t affect your work performance.

While you may legally use cannabis in Montana, your employer can still enforce drug policies at work and take action if your use impacts your job. However, they cannot penalize you for legal, off-duty use that doesn’t interfere with your work.

What Are the Rules for Traveling With Cannabis in Montana?

You can legally drive with marijuana in your vehicle in Montana, but it must be stored properly. Marijuana must be in its unopened, original packaging and kept outside the car's passenger area. According to HB 701, it should be stored in one of the following locations:

  • A locked glove compartment or storage compartment
  • The trunk, luggage compartment, truck bed, or cargo area
  • Behind the last upright seat in a vehicle without a trunk
  • In a closed container in a part of the vehicle that isn't normally occupied by the driver or passengers

While you may legally possess a certain amount of marijuana, it must be stored in compliance with state regulations. Failure to do so, even if the amount is legal, could result in fines up to $100.

How Are Past Cannabis Convictions Handled in Montana?

For those who were sentenced for marijuana-related offenses before legalization, there is now an opportunity to seek justice under the new laws. Many individuals were penalized for actions that are now perfectly legal, such as possessing or using small amounts of marijuana. 


With the change in legislation, these individuals can petition the court to expunge their convictions, redesignate felonies as misdemeanors, or reclassify criminal convictions as civil infractions. Even those still serving sentences can request resentencing or the redesignation of their convictions, offering them a chance to move forward without the lasting impact of outdated legal standards.

Final Thoughts on Cannabis Laws in Montana

Montana's cannabis laws have evolved from legalizing medical marijuana in 2004 to allowing recreational use in 2021. Adults 21 and over can legally purchase and consume cannabis, though federal law still prohibits it, particularly on Indian Reservations. Local governments control cannabis business operations to prevent market saturation, and Native American tribes can participate through special combined-use licenses.


The new laws also enable individuals with past marijuana convictions to seek expungement or resentencing. As the cannabis landscape changes, staying informed about these regulations is crucial for legal compliance and safe enjoyment. 


If you’re a cannabis business owner in Montana, streamlining your operations is key to success. Tools like KayaPush’s all-in-one people management software can automate your HR processes, giving you more time to focus on growing your business. Consider booking a demo to see how KayaPush can simplify HR for your cannabis venture.

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