Is a Minnesota Medical Marijuana Card Worth It? Cost and Limits

Short answer: Minnesota does not issue a medical marijuana card. The Division of Medical Cannabis enrolls patients in a registry instead, and the state sets no enrollment fee and a three-year term. The differences that matter most are a tax exemption on medical purchases, written protections for enrolled patients at school, with landlords, at work and in custody matters, and separate age and product rules for patients under 21.

The Division’s own FAQ says “We do not issue medical cannabis cards.” Patients who need proof of enrollment print a registry verification document from their account. HealthDataConsortium.org is a publishing site, not a clinic and not a government office. A website that charges a fee for a Minnesota “card” is selling something the state does not issue. If you are 21 or older, you can already buy adult-use cannabis, so the real question is what enrollment adds. This page sets out each difference, the exact rule and its limits, and who it matters to. For the wider picture across states, see our Medical Cannabis Card Guide.

What enrollment costs and how long it lasts

The state charges no enrollment fee. The Division’s Division of Medical Cannabis key dates page says “The annual patient enrollment fee was eliminated effective July 1, 2023.” Under Minn. Stat. 342.52, enrollment “is valid for three years.” The Division says patients must reenroll every three years to stay in the program, and its reenrollment page says recertification visits can be conducted by telemedicine.

To enroll, you need a certification from a participating health care practitioner dated within 90 days before you apply (Minn. Stat. 342.52, subd. 2), then an online enrollment application that the Division says may take up to 30 days to process. The clinician visit is a separate cost the state does not set. Our Minnesota application guide covers the rest of the steps, the forms and qualifying conditions.

Having a qualifying condition gives you legal access to the program. It is not proof that cannabis helps your condition. MedlinePlus says the US Food and Drug Administration “has not approved marijuana for treating any health conditions.” Veterans enroll through a separate certification route, which our Minnesota application guide also covers.

How the two sides compare

Here is the state’s side of each point, with the statute or page it comes from.

Do you pay tax on medical cannabis?

Medical purchases are exempt from the 15% cannabis tax, and adult-use purchases are not. Minn. Stat. 295.81, subdivision 4, paragraph (b), says the tax “does not apply to sales of medical items purchased by or for a patient enrolled in the registry program, including medical cannabis flower, medical cannabinoid products, or medical cannabis paraphernalia.” Subdivision 2 imposes the 15% tax on gross receipts from retail sales of taxable cannabis products.

The Department of Revenue cannabis tax page, last updated September 08, 2026, says taxable cannabis products are subject to a 15% gross receipts tax, plus the 6.875% state general rate sales tax and any applicable local sales taxes. Ask the Department of Revenue how the 6.875% state sales tax applies to your medical purchases, at 651-296-6181 or 800-657-3777. This matters most to a frequent buyer, because the 15% tax applies to adult-use purchases.

How much can you buy and keep?

The adult-use possession limits are in clauses (2) to (5) of paragraph (a) of subdivision 1 of Minn. Stat. 342.09. Check the figures in that statute before you plan a purchase. The same subdivision then sets an exception for enrolled patients: the limits “do not apply to a person enrolled in the medical cannabis patient registry program” when the products “include patient-specific labeling.”

A dispensary employee applies that label, and it carries the recommended dosage (Minn. Stat. 342.51, subd. 2, paragraph (a), clause (4)). The Division’s FAQ also says a consultation before your first purchase “will help determine the categories of medical cannabis products the patient may purchase, the recommended dosage, and any required paraphernalia.” This matters most to someone who buys larger amounts, because the enrolled-patient exception depends on that label.

What are the age rules?

The adult-use statute restricts providing cannabis products to anyone under 21 (Minn. Stat. 342.09, subd. 1). For enrolled patients, a dispensary may not distribute, sell or deliver medical products intended to be vaporized to a patient under 21 (Minn. Stat. 342.51, subd. 2, paragraph (c)). The Division’s FAQ says the sale of smokable cannabis is limited to registered patients and caregivers 21 or older, and its key dates page says “Patients ages 21 and older will have access to smokable medical cannabis, effective in spring 2022.”

This matters most to a patient aged 18 to 20, because both the vaporizing bar and the smokable age limit apply to you.

Can you grow cannabis at home?

For adult use, the home-grow limit is in Minn. Stat. 342.09, subdivision 2, so check that subdivision for the number before you plan a grow. For a patient, a registered designated caregiver who is approved to help obtain flower may grow up to eight cannabis plants for the patient household (Minn. Stat. 342.52, subd. 9, paragraph (d)). If the patient directs the caregiver to grow, the patient must assign the right to cultivate and notify the office, and then may not grow for personal use.

The Division’s FAQ says a caregiver who grows must be at least 21 years old, and that the caregiver may have up to eight plants for the patient and eight for personal adult use, with up to eight of those mature, flowering plants at one time. The statute separately requires a registered designated caregiver to be at least 18. This matters most to someone who wants to grow for a patient, since that route runs through a registered caregiver.

What protections does an enrolled patient get?

Minn. Stat. 342.57 sets these protections for people enrolled in the registry. Most carry exceptions, so read the terms below.

Presumption and criminal protection

• The statute presumes that an enrolled person “is engaged in the authorized use or possession of medical cannabis flower and medical cannabinoid products.” That presumption can be rebutted by evidence that the use was not for assisting, treating or alleviating the qualifying condition or its symptoms (subdivision 1).
• Use or possession by an enrolled patient is not a violation of chapter 342 or chapter 152, “Subject to section 342.56” (subdivision 2, paragraph (a)).
• Possessing a registry verification does not constitute probable cause or reasonable suspicion, and law enforcement may access the registry only with a valid search warrant (subdivision 2, paragraphs (d) and (g)).

School, rentals and work

• A school may not refuse to enroll or penalize a patient solely for enrollment, and a landlord may not refuse to lease or otherwise penalize a patient solely for enrollment, “unless failing to do so would violate federal law or regulations” or cause the school or landlord to lose a monetary or licensing-related benefit under federal law (subdivision 3, paragraphs (a) and (b)).
• Schools and landlords also may not act against a patient solely because cannabis is a controlled substance under federal law (subdivision 3, paragraphs (c) to (f)).
• An employer may not discriminate in hiring, termination or any term of employment based on enrollment or a positive drug test for cannabis components or metabolites, unless the patient “used, possessed, sold, transported, or was impaired by medical cannabis flower or a medical cannabinoid product on work premises, during working hours, or while operating an employer’s machinery, vehicle, or equipment” (subdivision 5). Exceptions also apply where the failure would violate federal or state law. For how work drug tests play out in practice, see our medical marijuana card at work guide.
• Before a school, landlord or employer takes a prohibited action, it must give written notice at least 14 days ahead that cites the specific federal law or regulation it believes would be violated (subdivision 5a).

Custody, medical care and penalties

• No one may be denied custody of, visitation with or parenting time with a minor child “based solely on” enrollment. There is no presumption of neglect for conduct the statute allows, unless the behavior creates an unreasonable danger, “established by clear and convincing evidence” (subdivision 6).
• For medical care, including organ transplants, a patient’s use is treated as the equivalent of authorized medication use and does not disqualify the patient from needed care (subdivision 4).
• For violations of the school, landlord and employment rules, you may sue for the greater of actual damages or a civil penalty of $1,000, plus reasonable attorney fees (subdivision 7).
• No licensing board may impose a penalty solely because you are enrolled or because of a positive test for cannabis components or metabolites (subdivision 2, paragraph (h)).

What the statute does not allow

Minn. Stat. 342.56 says nothing in sections 342.51 to 342.60 permits the following, and penalties remain available for them:

• Operating a motor vehicle, aircraft, train or motorboat, or working on transportation property, while under the influence of medical cannabis.
• Vaporizing or smoking on public transportation, in any public place including a place of employment, or where a minor would inhale the vapor or smoke.
• Possessing or consuming on a school bus or van, in a correctional facility, or on the grounds of a child care facility.
• Undertaking a task under the influence that would constitute negligence or professional malpractice.

This matters most to a patient who works, rents, has a child in school, or may face a drug test, and to a parent who is enrolled. Our guide to Minnesota workplace drug-testing law covers the work rules in detail.

Can you take medical cannabis to another state?

No. The Division of Medical Cannabis FAQ says “The federal law prohibits crossing state lines with cannabis, even if you are traveling to another state where cannabis is legal.” It also says “the protections Minnesota law offers to patients in the medical cannabis program do not extend beyond Minnesota’s borders,” and that if you are enrolled, you “should not take your medical cannabis with you to another state or country.” The same FAQ says purchases must come from a Minnesota-licensed medical dispensary, because “Purchases from other medical cannabis programs in other states are not allowed under Minnesota law.” This matters most to a frequent traveler.

What does the card not change?

• Federal law still applies. Several protections carve out cases where following them would violate federal law (Minn. Stat. 342.57, subd. 3 and 5).
• Public use and driving remain restricted, as listed above (Minn. Stat. 342.56).
• Workplace rules still allow action where the on-premises, impairment and federal exceptions apply.
• The age limits on vaporized and smokable medical products for patients under 21 still apply.
• Protections do not follow you across state lines.

What are the positives and negatives?

Positives

• No state enrollment fee, and a three-year term (Minn. Stat. 342.52, subd. 7).
• The tax exemption on medical purchases (Minn. Stat. 295.81, subd. 4(b)).
• Written protections at work, school, with landlords and in custody matters (Minn. Stat. 342.57).
• Access to flower and medical cannabinoid products, and a caregiver route to home growing (Minn. Stat. 342.52, subd. 7a and 9).

Negatives

• Recertification and reenrollment every three years. A certification expires if the application is not approved within 90 days.
• Conditions of enrollment: you must keep receiving regularly scheduled treatment and report changes in your condition to your practitioner (Minn. Stat. 342.52, subd. 6). Enrollment can be revoked if your practitioner declares the diagnosis no longer exists and you do not submit another certification within 30 days (subd. 4).
• Medical purchases must come from a Minnesota-licensed medical dispensary, and the protections stop at the state line.
• Name or address changes must be reported within 30 days, and a $100 fine applies for failing to do so (Minn. Stat. 342.52, subd. 11).

Does medical marijuana still get you high, and how strong is it?

MedlinePlus’s overview of medical marijuana says marijuana is “best known as a drug that people smoke or eat to get high.” It says THC “can affect the brain and change your mood or consciousness,” and that different varieties contain different amounts of cannabinoids, which “sometimes makes the effects of medical marijuana hard to predict or control.”

For a dose comparison, such as a 10 mg edible against a joint, ask your pharmacist or certified consultant. The state requires that consultation before your first purchase, and the label carries the recommended dosage.

Side effects and who should talk to a clinician first

MedlinePlus lists these as possible effects of marijuana use:

MedlinePlus also says some studies have linked marijuana use with increased risk of heart attack and stroke, and it lists people with heart disease, pregnant women and people with a history of psychosis among those who should not use medical marijuana. If any of these apply to you, talk with your health care practitioner before you enroll.

Before you enroll

• Ask the Department of Revenue, at 651-296-6181 or 800-657-3777, how the 6.875% state sales tax applies to a medical purchase.
• Read the adult-use possession figures in Minn. Stat. 342.09 before you plan purchases.
• Ask your pharmacist or certified consultant for the dose in milligrams before your first purchase.
• Check current product prices at the dispensary you plan to use.

When you are ready to start, follow the steps in our Minnesota application guide. Whether these differences are worth it depends on how often you buy, your age, whether you grow, and whether work, rent or school is part of your life.

By HealthDataConsortium.org Research Team

This article is for general information purposes only and does not constitute medical advice. Consult your doctor or qualified healthcare provider before making changes to your health routine.