Michigan Cannabis Tax Rates 2026, Explained

Status checked August 16, 2026: Michigan’s 24% adult-use wholesale marijuana tax is enacted, in effect, and being collected. It took effect January 1, 2026. It is also being challenged in court, but no court order located as of this date has stayed collection or invalidated the tax. A proposed repeal is not a repeal. For an operator, the practical answer today is to model and remit the tax under Treasury’s current rules while following the litigation and any legislative change.

Michigan’s cannabis tax stack is no longer just the familiar 10% adult-use excise tax plus 6% sales tax at the counter. The new wholesale tax sits earlier in the chain, can fall directly on a cultivator or processor that first transfers adult-use product to a retailer, and creates a cash-flow obligation even when the invoice has not been collected.

This is an operational overview, not legal or tax advice. Contracts, ownership structure, product mix, and license type can change the result. Confirm a specific transaction with a Michigan-qualified tax professional.

The short version

As of August 16, 2026, these are the core statewide taxes relevant to a licensed cannabis business:

The first three are transaction taxes. Corporate income tax applies to taxable income, not as a percentage added to a flower invoice.

The new 24% wholesale tax

Michigan enacted the Comprehensive Road Funding Tax Act in October 2025. Under that law, Treasury began administering a 24% tax on the wholesale price of certain adult-use marijuana sales and transfers on January 1, 2026. Treasury says the revenue goes to the neighborhood road fund for infrastructure improvements.

The tax generally applies at the first sale or other transfer of adult-use marijuana from a licensed marijuana establishment to a marijuana retail licensee. The establishment making that first transfer is the taxpayer. That can include a grower or processor selling product to a retailer.

A grower selling flower to a processor is not, by itself, the taxed event if the processor is not acting as the retail licensee. The tax is designed to apply at the first move to adult-use retail, not at every step from cultivation through processing. That distinction matters for tolling arrangements and for businesses with several licenses.

The wholesaler may pass the cost through to the retailer by putting it on the invoice. But passing it through does not shift legal liability to the retailer. Treasury’s guidance says the wholesaler remains responsible for payment and remittance, including when an account receivable later becomes uncollectible. The law does not provide a bad-debt deduction for that situation.

Simple unrelated-party example

Assume an unrelated cultivator sells 100 pounds of adult-use flower to a licensed retailer for $600 per pound. The product price is $60,000. At 24%, the wholesale tax is $14,400.

The cultivator may show that $14,400 separately and seek reimbursement from the retailer. Still, the cultivator is the party Treasury holds responsible for remitting it. When pricing a deal on terms, the question is not just whether the customer accepts the pass-through. It is whether the contract, credit policy, and cash reserve cover the tax if payment is late or never arrives.

For non-affiliated parties, the base generally is the actual amount paid to acquire the product, including invoice charges tied to acquisition. Treasury permits some separately stated, documented services unrelated to acquisition, but restricts reductions such as advertised volume discounts, rebates, trade allowances, and exclusivity discounts. Do not assume a label changes the tax base.

Integrated companies, microbusinesses, and related entities

The tax does not disappear when cultivation, processing, and retail sit under common control.

For transfers between affiliated entities, and for an adult-use retail licensee that cultivates and processes its own product for retail sale, the tax base is Treasury’s average wholesale price, published by product category each quarter. A seed-to-sale microbusiness triggers the tax when it packages the product for retail sale. A vertically integrated operator cannot simply choose a nominal intercompany transfer price to reduce the tax base.

Published average prices change by quarter, so integrated operators need the current Treasury list in their operating calendar.

The 10% retail excise tax and 6% sales tax

The older adult-use tax stack remains in place. Michigan’s Marihuana Retailers Excise tax is 10% of adult-use retail sales, in addition to the 6% state sales tax. These are retail-side taxes, not taxes a cultivator files merely for growing flower.

The adult-use retailer files the retail excise return quarterly through Michigan Treasury Online. Treasury’s current guidance says the return is due on the 20th day of the month after the quarter ends. Sales-tax filing frequency can be monthly, quarterly, or annual, depending on Treasury’s assignment.

A straightforward tax-exclusive shelf-price illustration is useful for separating the counter taxes from the wholesale tax. On a $100 adult-use retail sale, 10% retail excise is $10 and 6% sales tax is $6, for $16 in those two taxes. The 24% wholesale tax is not a 24% charge added at the register by state rule. It arose earlier in the supply chain and may be reflected in a retailer’s acquisition cost or a separately negotiated invoice pass-through.

Michigan’s 10% retail excise tax applies to adult-use sales. Treasury’s wholesale bulletin likewise addresses adult-use transactions. Do not treat medical and adult-use inventory or license privileges as interchangeable. The relevant license, inventory status, transfer, and applicable statutes matter.

Filing dates and 2026 transition rules

Treasury’s 2026 wholesale-tax instructions use a transition-year payment structure. Good-faith quarterly payments for activity in the first three quarters are due April 20, July 20, and October 20, 2026. A full set of 2026 wholesale returns and any remaining tax for the first three quarters, plus the fourth-quarter liability, are due January 20, 2027.

For the first three quarters of 2026, Treasury says it will waive penalties and interest if the taxpayer pays at least 75% of the eventual liability for each quarter and completes the required 2026 filings and payment by January 20, 2027. Beginning in 2027, quarterly wholesale returns and full payment are due each quarter.

That relief is conditional, not permission to ignore the liability. Retain contracts, invoices, ownership records, credits, return documentation, product-category support, and title-transfer records. Treasury says the regulatory tracking system should not by itself decide when ownership transferred for wholesale-tax purposes.

Legal status: challenged, but currently effective

The wholesale tax has been actively litigated. In Holistic Research Group, Inc. v. State of Michigan Department of Treasury and the related Michigan Cannabis Industry Association case, the Michigan Court of Claims denied preliminary injunction requests in December 2025. A January 5, 2026 order denied the state’s request to reconsider part of the ruling and left factual questions for further proceedings about whether the tax conflicts with the purposes of the voter-approved Michigan Regulation and Taxation of Marihuana Act.

That January order specifically says it is not a final order resolving all issues. It does not cancel the tax. Treasury’s current wholesale-tax page continues to state that the 24% tax applies to taxable adult-use transfers from January 1, 2026, and Treasury continues to provide payment and price-list tools.

So the accurate status as of this article’s date is: enacted and operative, subject to ongoing legal challenge, with no identified stay, repeal, or final invalidation. Court and legislative developments can change this quickly. Do not base a pricing decision on a headline or a bill introduction without checking the current order and Treasury guidance.

What this changes for cultivators

A 24% statutory liability on a first transfer to retail changes the math even where the market will not accept a full pass-through. It can pressure delivered pricing, retailer credit terms, packaging timing for integrated operators, and the amount of cash tied up between shipment and collection.

Start with a transaction map, not a blended percentage. For each adult-use product flow, identify who owns the product at each step, who is the first seller to a retail licensee, whether the parties are affiliated, the title-transfer point in the contract, the product category, and the tax base Treasury requires. Then separate tax cash from revenue and contribution-margin reporting.

It is also worth separating a tax problem from a broader pricing problem. Michigan wholesale prices and market conditions have been volatile. Compare the tax against saleable yield, realized price, labor, utilities, remediation, and facility cost rather than treating every margin decline as one line item. Our Michigan cannabis market update provides wider context on the local market. For the underlying operating number, use a disciplined cost-per-pound calculation. And in a compressed market, the work of protecting margin extends beyond a tax invoice, as covered in How Commercial Cannabis Cultivators Survive Price Compression.

The point is not to predict who will absorb the tax. It is to know, transaction by transaction, who owes it, when it is due, and whether the price and collection terms leave room for it.

References

1. Michigan Department of Treasury, Wholesale Marijuana Tax, accessed August 16, 2026.
2. Michigan Department of Treasury, Revenue Administrative Bulletin 2026-3: Wholesale Marihuana Tax, approved March 17, 2026 and updated March 24, 2026.
3. Michigan Department of Treasury, Michigan Treasury Releases Guidance on New 24% Wholesale Marijuana Tax, March 17, 2026.
4. Michigan Department of Treasury, Filing Requirements: Marihuana Retailers Excise Tax, accessed August 16, 2026.
5. Michigan Court of Claims, Holistic Research Group, Inc. v. State of Michigan Department of Treasury, Case No. 25-000159-MT, and related case, January 5, 2026 order.
6. Michigan Department of Treasury, Corporate Income Tax, accessed August 16, 2026.