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Is Weed Legal in Michigan? Marijuana Laws

Michigan voters legalized marijuana for adults in 2018. Adults can buy it at licensed stores, carry it and grow it at home, while a wholesale tax that started in 2026 is being fought in court.

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Yes. Marijuana is legal in Michigan for adults 21 and older. Voters approved Proposal 1 on November 6, 2018, with 55.9% of the vote, making Michigan the first Midwest state to legalize recreational marijuana (Ballotpedia). The law lets adults buy from licensed stores, carry and grow their own, and give small amounts to other adults.

Key facts

  • Adults may carry up to 2.5 ounces and grow 12 plants at home (MCL 333.27955).
  • Store sales carry a 10% excise tax plus the 6% sales tax (MCL 333.27963).
  • Adult-use stores sold about $3.1 billion from September 2025 through August 2026 (Cannabis Regulatory Agency).
  • A 24% wholesale tax started in January 2026 and is being challenged in court (WKAR).

Michigan Marijuana Possession Limits

The law sets separate limits for what you carry and what you keep at home. Out in public, adults may possess up to 2.5 ounces, with no more than 15 grams as concentrate. At home, the limit is 10 ounces plus whatever your own plants produce (MCL 333.27955).

What adults 21 and older may do under Michigan's marijuana law

ActivityLimit
Carry or buy2.5 ounces, up to 15 grams of concentrate
Keep at home10 ounces, plus what your own plants produce
Grow at home12 plants per residence
Give to another adult2.5 ounces, unpaid and not advertised

Source: Michigan Regulation and Taxation of Marihuana Act, MCL 333.27955

Michigan marijuana law, by situation

I am under 21
  1. Adult-use marijuana is legal only for people 21 and older.
  2. Licensed stores check ID.
  3. The protections in the 2018 law do not apply to you.

MCL 333.27955 covers persons 21 years of age or older.

I want to grow at home
  1. Keep no more than 12 plants on the premises at once.
  2. Grow inside your own residence.
  3. You may store up to 10 ounces at home plus what your plants yield.

MCL 333.27955(1)(b).

A friend wants to share
  1. Giving up to 2.5 ounces to another adult is legal.
  2. You may not take payment for it.
  3. You may not advertise or promote the gift.

MCL 333.27955(1)(d).

Marijuana Taxes in Michigan

Shoppers pay a 10% excise tax and the 6% sales tax at the store. Proposal 1 created the excise tax and sends the money to local governments, schools, and roads and bridges (MCL 333.27963; Ballotpedia).

A 24% wholesale tax took effect in January 2026 as part of a road funding law. The Court of Claims refused to block it before it started, ruling that it is a separate tax and does not amend the voter-approved act (Fox 2 Detroit). The Michigan Cannabis Industry Association filed a second lawsuit on March 30, 2026, arguing the tax works as a sales tax above the constitution’s 6% limit. A first suit argues it needed the three-fourths vote required to change a voter-approved law (WKAR).

Michigan’s Legal Marijuana Market

Michigan’s adult-use stores sold about $3.1 billion worth of marijuana in the 12 months through August 2026. That figure is the change in the Cannabis Regulatory Agency’s running sales total between its August 2025 and August 2026 reports (August 2025; August 2026).

$259 million
adult-use sales in August 2026
-8.5%
change from August 2025
$60.33
average retail price of an ounce of flower, August 2026

Monthly sales and prices were both lower in August 2026 than a year earlier. The average retail price of an ounce of flower was $60.33 in August 2026, down from $61.79 a year before (Cannabis Regulatory Agency).

Where Things Stand

Michigan marijuana laws

As of October 1, 2026

  • Legal adult-use marijuana (Proposal 1, 2018) Law, Adults 21 and older

    Adults may carry 2.5 ounces, keep 10 ounces at home and grow 12 plants. (source)

  • 24% wholesale marijuana tax In litigation, In effect since January 2026

    The cannabis industry filed a second lawsuit on March 30, 2026; a first challenge is pending in the Court of Claims, which refused to block the tax before it started. (source)

Source: Michigan Compiled Laws; WKAR and Michigan Public Radio

Michigan Marijuana Questions

Is weed legal in Michigan?

Yes, for adults 21 and older. Michigan voters approved Proposal 1 on November 6, 2018, with 55.9% of the vote. Adults may buy marijuana from licensed stores, carry up to 2.5 ounces and grow up to 12 plants at home.

How much weed can you carry in Michigan?

Up to 2.5 ounces, and no more than 15 grams of that may be concentrate. At home you may keep up to 10 ounces, plus what your own plants produce.

How many plants can you grow in Michigan?

Up to 12 plants for personal use in your residence, and no more than 12 on the premises at once, no matter how many adults live there.

Can you give weed to a friend in Michigan?

Yes, up to 2.5 ounces to another adult 21 or older, as long as you are not paid and the gift is not advertised.

What taxes are on marijuana in Michigan?

Buyers pay a 10% excise tax and the 6% sales tax at the store. Since January 2026 a 24% wholesale tax also applies earlier in the supply chain, and the industry is challenging it in court.

What You Can Do

  1. Know the limits before you carry or grow: 2.5 ounces out, 10 at home, 12 plants.
  2. Buy only from licensed stores. The Cannabis Regulatory Agency licenses them.
  3. Ask your state legislators where they stand on the wholesale tax. Every seat is on the November 3, 2026 ballot; see our Michigan governor race guide.
  4. Compare other states. Our Florida and Texas pages show states where recreational marijuana is still illegal.