Maine’s adult-use stores sold $246.8 million of cannabis in 2025 across 216 licensed retailers, with revenue concentrated in the summer tourist season. Bank-to-bank ACH settles the full basket next day on federally regulated banking rails, with no card network in the transaction.
A high store count on a small population: Maine is a market of independents, not chains.
The short version
- Maine sold $246.8M of adult-use cannabis in 2025 across 216 licensed retailers.
- Revenue is heavily concentrated in the summer visitor season.
- A card termination in peak season holds settled funds through the only quarter that matters.
- Bank-to-bank ACH runs on federally regulated banking rails with next-day settlement.
The Maine market, in numbers
Maine’s adult-use stores sold $246.8 million of cannabis in 2025, up 1.2% from $243.9 million in 2024, across 216 licensed retailers regulated by the Office of Cannabis Policy. The average price per gram has fallen every year since 2021, from $12.75 to $6.62.
With 216 adult-use stores serving a population of about 1.4 million, Maine has one of the highest store-per-capita ratios in the country. It is a market of independent operators rather than multi-state chains, and it generated $43.7 million in adult-use tax revenue in 2025.
Maine also runs a substantial separate medical caregiver market alongside adult-use — an unusual structure that keeps a lot of small businesses in the supply chain.
Why card processing closes in Maine too
The mechanism is national, not local. Card networks require every merchant to be classified with a four-digit merchant category code when an acquiring bank boards the account, and there is no code for state-licensed cannabis. A Maine-licensed store accepting cards is boarded under a category that does not describe it, and network monitoring is built to find exactly that mismatch.
Maine’s own rules do not change this. State licensing determines whether you can operate; card network operating rules are written against federal law, which has not moved. The sequence is the same everywhere: the account boards, it works for a while, monitoring flags the mismatch, and the account terminates with settled funds held, commonly for around 90 days.
Cashless ATM and PIN debit programs are common among Maine stores and carry the same underlying structure regardless of how the terminal is labeled at the counter.
Bank-to-bank ACH as the alternative
ACH moves money directly between the customer’s bank account and the merchant’s, on federally regulated banking rails. There is no card network in the transaction, so no merchant category code applies and there is no network monitoring comparing behavior against a coded category.
At the counter the customer scans a QR code with their phone camera, connects their bank once in about thirty seconds, and confirms. No app download. Every purchase after that is a single confirmation, typically under twenty seconds. Greencard Payments platform data puts the repeat rate at roughly 87%. Funds settle next day into your own account, and cash acceptance is unaffected — this is an addition to the payment mix, not a replacement.
Seasonality, small operators and thin reserves
An independent Maine store does not have the balance sheet of a multi-state operator. It has a season, an inventory buy ahead of that season, and a cash position that has to carry through a quiet winter. That is the specific business a 90-day funds hold breaks.
Seasonal volume spikes are also, mechanically, what triggers review on a miscoded card account. A store that quadruples transaction count between May and July looks exactly like the pattern network monitoring is designed to flag.
Next-day settlement into your own bank account changes the shape of that risk. The money from Saturday is in the account on Monday rather than sitting inside a processor relationship that can be closed with notice.
Delivery, online and wholesale
Maine permits adult-use delivery in participating municipalities, and the driving distances make SMS pay links particularly useful — the order settles before a driver commits to a forty-minute round trip. E-commerce prepay collects the full basket on online pickup orders from visitors planning ahead.
On the supply side, wholesale between licensees still settles largely in cash and checks. B2B invoicing on the same platform settles against a specific invoice, next day, with recurring billing for standing orders.
Availability in Maine
Seay Payments is an Independent Sales Organization. We do not process payments, handle onboarding, or provide ongoing merchant support; we connect licensed operators to the platform and to the team that runs it. Bank-to-bank ACH acceptance through Greencard Payments is offered to licensed cannabis businesses, and the demo confirms availability and fit for your license type, your volume and your bank before anything is signed.