1. The 24% wholesale tax, layered
What MI requires: Effective January 1, 2026, Michigan added a 24% wholesale marijuana tax (HB 4951, signed October 7, 2025) on the first sale or transfer to a retailer, and it applies even to vertically integrated transfers inside one company. That sits on top of the existing 10% retail excise and the 6% state sales tax, so most adult-use product now carries three separate tax layers. Treasury and the CRA now share data, and tax clearance has become part of license renewal.
What SellStack does natively: SellStack's tax engine calculates the 24% wholesale tax, the 10% retail excise, and the 6% sales tax from one configuration, each applied where it is owed, including on internal transfers between your own licenses. The wholesale tax point is handled at the transfer, not reconstructed from reports at filing time.
What this means for your operations: You stop hand-building three-layer tax math across your own transfers, and a tax position that now gates your license renewal falls out of operating normally rather than getting assembled under a deadline.
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2. Metrc-Michigan reconciliation
What MI requires: Michigan's state track-and-trace system is Metrc, administered by the Cannabis Regulatory Agency, with serialized plant and package tags across every transfer and sale. Enforcement is active: in April 2026 the CRA disciplined 39 companies over tracking, security, sales, and packaging, so Metrc records that do not match the operation are a live liability.
What SellStack does natively: SellStack Cannabis ERP-Commerce ships with native Metrc integration and treats its own ledger as the source of truth, reconciling Metrc from it rather than building inventory logic on top of it. Every tag, transfer, and sale ties back to the lot record you already run on.
What this means for your operations: Metrc reconciliation is a byproduct of operating, not a separate end-of-day exercise, and when the CRA looks, the record the state sees already matches the record you run your business on.
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3. Medical and adult-use, one ledger
What MI requires: The CRA regulates Michigan's medical (provisioning center) and adult-use (retailer) markets under one agency, and many operators run both. The channels carry different tax treatment, and after the April 2026 federal reschedule they carry different compliance expectations on the medical side, but inventory and lot history still move between them.
What SellStack does natively: SellStack runs medical and adult-use from one lot-aware ledger. A lot's genealogy, its tax treatment, and its channel are the same record, so the two sides of the operation reconcile to each other instead of living in separate systems.
What this means for your operations: You run both Michigan channels without maintaining two inventories, and the medical side is already positioned for the GMP-grade records the Schedule III clock now calls for.
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4. Delivery, run from the retailer
What MI requires: Michigan has no separate delivery license. Only licensed retailers deliver, and only under a Delivery Plan approved by the CRA, to adult-use customers 21 and over and to registered medical patients. Vehicles are capped at $5,000 of cannabis at a time, and $3,000 for product not yet tied to a received order.
What SellStack does natively: SellStack owns the delivery order and carries it into the delivery workflow with the Michigan vehicle caps enforced on the delivery side. The order, the manifest, and the lot record are one flow, not a re-keyed hand-off into a separate dispatch tool.
What this means for your operations: Your delivery runs inside the same system as the rest of the operation, and the CRA Delivery Plan caps are enforced where delivery actually happens, not tracked on a spreadsheet.
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5. Lot-aware traceability
What MI requires: Both Metrc on the state side and federal GMP, which has been live for Michigan medical operations since April 28, 2026, require lot-level records throughout the chain. A lot has to stay identifiable from receipt, through processing, to the point of sale, and the records have to hold up to a traceback.
What SellStack does natively: SellStack delivers lot-aware commerce from receipt through sale. Every inventory record, sales record, and test result carries the lot identifier, and the lot genealogy is the ledger itself, not something reconstructed from reports later.
What this means for your operations: The lot story is the audit story. Metrc reconciliation and the records half of GMP both come out as byproducts of operating normally, rather than as separate projects.
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6. ERP integration
What MI requires: A Michigan operation has to keep financials, inventory, and commerce in agreement, and reconcile all of it to Metrc. Operators running a separate ERP and a separate commerce system carry a standing reconciliation burden between the two.
What SellStack does natively: SellStack Cannabis ERP-Commerce backs onto your ERP or warehouse platform as the system of record, and Microsoft Dynamics 365 Cannabis on Business Central is already fully supported. Financials, inventory, and commerce run from the same ledger, so the lot record, the financial record, and the inventory movement are the same record.
No ERP in place yet: You do not need an ERP to run SellStack. SellStack Cannabis E-Commerce Edition operates standalone, with no ERP underneath it, so an operation can stand up a GMP-ready sales model now and work out which ERP or warehouse platform to connect later, or whether to add one at all. Even standalone, it is lab-results compliant out of the box: because it ingests lab data, a no-ERP operation still meets Metrc, BioTrack, and other state lab-results requirements from day one. The lot-aware ledger, the commerce layer, and the records are the same with or without an ERP, so nothing has to be rebuilt when one is connected down the road. That makes it a fit for operations mid-transition, and for startups that need to be selling on a compliant, GMP-ready footing before the deeper infrastructure is in place.
What this means for your operations: There is no reconciliation project between the ERP and the commerce layer. One ledger means your books, your inventory, and your storefront never drift apart.
Request a demo for Michigan operations →
7. Schedule III GMP readiness
What MI requires: Medical cannabis moved to Schedule III federally, effective April 28, 2026, and it is in effect now for Michigan medical operations. Adult-use rescheduling is still pending; the DEA proceeding was stayed September 29, 2026 awaiting a GAO report, with a decision expected late 2026 or early 2027. For medical operators, GMP-grade records start to matter.
What SellStack does natively: The records half of GMP, immutable and lot-level, is built into how SellStack operates, so the audit trail is a byproduct of running on one lot-level ledger rather than a separate project.
What this means for your operations: Your Michigan medical operations build GMP-grade records now, on a clock that already started, without a parallel compliance system bolted on beside your commerce stack.