Michigan Cannabis Taxes: What You Actually Pay

Michigan adult-use cannabis purchases are subject to two layers of tax at the state level: a 10% excise tax (levied specifically on recreational cannabis under the MRTMA) plus Michigan's standard 6% state sales tax. The Michigan Department of Treasury charges the sales tax on the price plus the excise, so the two come to 16.6% of the sticker price, not 16%. Since January 1, 2026 a separate 24% wholesale marijuana tax, under the Comprehensive Road Funding Tax Act, has been paid when product is sold to a retailer; it sits inside the shelf price and does not appear on the receipt.

Michigan does not have a variable rate based on THC content. Illinois tiers its cannabis excise by potency (10% at or under 35% THC, 25% above 35% THC, 20% on infused products such as edibles) — which creates a situation where a high-THC concentrate faces a dramatically higher tax rate than a low-THC edible in the same transaction. Michigan's flat 10% excise applies uniformly across flower, vapes, concentrates, edibles, and prerolls regardless of potency.

Michigan's adult-use law gives cities and counties no cannabis tax of their own; they receive a share of the state excise instead. That is the opposite of Illinois, where Cook County and Chicago each add 3%. In every Michigan market we track, Ann Arbor, Detroit, Grand Rapids and Bay City, 16.6% is the all-in rate at the register.

Here is the exact calculation. Take the pre-tax menu price, multiply by 1.10 for the excise tax, then multiply the result by 1.06 for the sales tax. The combined multiplier is 1.166 (about 1.17).

Examples: A $30 eighth of flower → $30 × 1.166 = $34.98 at the register. A $20 vape cart → $23.32. A $15 edible pack → $17.49. A $40 concentrate gram → $46.64. In practice, many dispensaries round to the nearest dollar at checkout; some build the tax into a "menu price + tax" display rather than showing a separate pre-tax sticker. Always ask if you're unsure which format a store uses.

Budget 16–17% on top of whatever you see on the menu board. If you're making a larger purchase, run the math in advance. A $120 cart purchase becomes $139.92 at 16.6% — that's a meaningful swing if you're managing a tight budget.

Michigan medical cannabis patients with a valid Michigan Medical Marihuana Program (MMMP) card pay only the 6% state sales tax on purchases — the 10% excise does not apply. On a $30 eighth, a patient pays $31.80 at the register against $34.98 for an adult-use buyer. On $100 of purchases, a patient pays $6 in tax and an adult-use buyer $16.60.

MMMP cards require a qualifying condition (chronic pain, cancer, glaucoma, HIV/AIDS, Crohn's disease, and others), a physician certification, and a state registration fee of $40 (or $25 for recipients of public assistance). The physician certification can be completed via telehealth through several Michigan-licensed providers for $40–$75. Total cost to obtain a card: roughly $80–$115 out of pocket.

Breakeven: the tax difference is $10.60 per $100 of purchases, so a patient spending $100 a month covers a $115 certification cost in about 11 months, and one spending $300 a month in about four. For regular-use Michigan residents who qualify medically, the card is worth getting.

Michigan's 16.6% adult-use rate looks very different next to its neighbors. Illinois charges a Cannabis Purchaser Excise Tax of 10% on cannabis at or under 35% THC, 20% on infused products such as edibles and 25% above 35% THC, then its 6.25% state rate, and inside Chicago both Cook County's 3% and the city's 3% cannabis taxes. On a concentrate above 35% THC those layers add 37.25% before local general sales tax, so a $30 gram at a Chicago store is about $41.18 at the register.

Colorado charges a 15% retail marijuana sales tax and, since July 1, 2017, no 2.9% state sales tax on retail marijuana; cities then add their own layer. In Denver the total is 26.75%: the state's 15%, Denver's 10.65% (a 5.15% general sales tax and a 5.5% special marijuana sales tax), 1% for the Regional Transportation District and 0.1% for the Scientific and Cultural Facilities District. Colorado medical patients pay the 2.9% state sales tax instead of the 15%. Michigan's 16.6% adult-use and 6% medical rates both look lean against Denver's, though Colorado's mature market has driven wholesale prices low enough to keep menu prices competitive.

New Jersey charges its 6.625% state sales tax on adult-use cannabis, a town that hosts a store may add up to 2% of its own, and a per-ounce Social Equity Excise Fee is charged further up the supply chain. New Jersey licensing scarcity also drives menu prices higher to begin with, compounding the effective cost to the buyer.

Michigan's 10% cannabis excise tax flows into a dedicated fund split three ways: 15% to municipalities that allow retail cannabis businesses, 15% to counties where retail cannabis is sold, and 35% to the School Aid Fund, with the remaining 35% to the Michigan Transportation Fund. The municipal and county shares reward communities that opt into cannabis retail — a direct incentive structure that encouraged more cities to permit stores, which contributed to the license density that now drives prices down.

The School Aid Fund allocation has generated hundreds of millions of dollars for Michigan K-12 schools since recreational sales began in December 2019.

Because Michigan's tax rate is flat and uniform, the store with the lowest pre-tax menu price is always the best deal after tax — there's no calculation to do across stores. The Michigan dispensary with the lowest sticker price on your target product is also the lowest all-in.

That's what CloudedDeals does: we pull the pre-tax sticker price from every tracked Michigan dispensary each morning and rank them by deal score — a composite of discount depth, market position, and unit value. The top-ranked deal is where today's value is.