01 The January 1 tax restructure
Maine raised the adult-use sales tax to 14% and cut the per-weight cultivation excise by about a third on January 1, 2026. SellStack's tax engine applies both from one configuration.
On January 1, 2026 Maine raised the adult-use cannabis sales tax from 10% to 14% and cut the per-weight cultivation excise by about a third. At the same time, your adult-use side runs on Metrc while Maine's large legacy medical caregiver market sits outside Metrc entirely. If you touch both, you are running two parallel compliance regimes off one business, and most tools only understand one of them.
SellStack handles the seven Maine realities as one ledger, including the tracked and untracked sides at the same time. The rules can keep moving. Your operations do not have to.
Maine runs two cannabis markets side by side: a tracked adult-use program on Metrc under the Office of Cannabis Policy, and a large legacy medical caregiver market that is not on Metrc at all. In 2026 the tax structure changed and the medical tracking debate heated up. Four realities carry the most operational weight.
One ledger, not five tools stitched together. Each links to the detail on the next page.
Maine raised the adult-use sales tax to 14% and cut the per-weight cultivation excise by about a third on January 1, 2026. SellStack's tax engine applies both from one configuration.
Maine's adult-use market runs on Metrc under the OCP. SellStack Cannabis ERP-Commerce ships with native Metrc integration, reconciled from your own ledger.
Maine's defining split: tracked adult-use on Metrc and a large legacy medical caregiver market that is not on Metrc. SellStack runs both from one lot-aware ledger, tracked and untracked side by side.
Maine authorizes residential adult-use delivery statewide, run by the selling store, with no third-party courier license. SellStack owns the order and carries it into delivery.
Every inventory, sales, and test record carries the lot identifier from receipt through sale, so the lot genealogy is the ledger. Metrc reconciliation and GMP both fall out of it.
SellStack Cannabis ERP-Commerce backs onto your ERP or warehouse platform. Microsoft Dynamics 365 Cannabis on Business Central is fully supported, so financials, inventory, and commerce run from one ledger.
The federal GMP clock started April 28, 2026 for Maine medical operators. The records half is built in, as a byproduct of operating normally.
SellStack moves the numbers on both sides of the ledger. Streamlined automation lifts productivity, so more of every sale reaches the bottom line instead of being spent on manual compliance and reconciliation work. And SellStack's B2B buyer tools have increased buyer purchasing by 50 to 75% in measured results (SellStack Insights Reporting), turning the wholesale relationships you already have into more volume without more headcount.
SellStack ships the commerce and records layer for Maine cannabis operators. It does not stand in for the parts of compliance that are yours:
SellStack does not replace Metrc either. It reconciles to it on the adult-use side, so the lot-level record the state sees already matches the record you run your business on, while the untracked medical side runs on the same lot discipline. When the OCP or the Legislature changes a rule, SellStack's configuration layer handles the adaptation and your inventory logic stays stable.
SellStack is the cannabis commerce engine for operators running real multi-channel, multi-entity operations: tracked adult-use on Metrc, the untracked legacy medical caregiver market, B2B wholesale, B2C retail, and store-run residential delivery, on one ledger with lot-level traceability and ERP integration.