Do You Need a Cannabis POS System, or Will Square Work?

Do you need a cannabis POS system?

If you sell THC products under a state cannabis license, yes. Mainstream point of sale platforms cannot report to state track and trace systems like Metrc, and the card networks prohibit licensed cannabis retail outright. If you sell only hemp-derived CBD at or below 0.3% THC, no. A general retail POS such as Square will handle it, subject to conditions.

Last updated August 2026. This is general information for licensed operators, not legal or financial advice. Payment policies and state traceability requirements change frequently. Confirm current terms with your processor and your state regulator before you buy anything.

Why a normal POS breaks in a licensed dispensary

The gap is not about features. It is about two hard external constraints that no amount of configuration will get you around.

The first is compliance reporting. Most legal states run a seed to sale traceability program, and Metrc is the dominant one. Every sale has to be reported against a package tag, in near real time, in the format the state expects. That is an integration your POS vendor either has built and maintains or does not have at all. A general retail system has no concept of a state package tag, so there is no setting to switch on. Shops that try to bridge the gap manually end up running a spreadsheet alongside the register and reconciling by hand, which is where compliance failures come from.

The second is payments. Licensed cannabis dispensaries cannot accept Visa or Mastercard directly, even in states where adult-use sales are entirely legal, because the networks prohibit the category at the federal level. That is not your processor being cautious, it is a network rule. What operators actually run instead is cash, PIN debit through cashless ATM arrangements processed as cash advances, or ACH-based systems. Those need a POS that understands them. A mainstream system that assumes card present transactions will fight you on every ticket.

Can you use Square for a dispensary?

Not for THC. Square's terms allow hemp-derived CBD at or below 0.3% THC, and prohibit anything above that threshold, anything not FDA approved in the relevant categories, and all synthetic cannabinoids including HHC and THC-O. A state-licensed marijuana dispensary falls outside what Square permits, and processing through it anyway risks account termination and frozen funds.

Shopify sits in a similar place with a wrinkle worth knowing. The platform itself permits hemp CBD merchants, but Shopify Payments does not support the category, so you have to bring a third-party gateway. That is workable for a hemp store and irrelevant for a licensed dispensary, which cannot use either for THC.

The pattern across mainstream providers is consistent: hemp CBD is a conditional yes, THC is a flat no. Anyone telling you they have found a way to run dispensary card transactions through a mainstream processor is describing a setup that ends with a closed account.

What POS system does a CBD store need?

This is where a lot of money gets wasted, so it is worth separating clearly from the dispensary case. If you run a CBD shop selling hemp-derived products at or below 0.3% THC, you are not in a state traceability program. There is no Metrc account, no package tags, no purchase limits to enforce, and no license to lose. You do not need a cannabis POS, and buying one means paying several hundred dollars a month for compliance machinery you will never switch on.

A standard retail POS covers it. What you do need to get right is the payment side, because CBD is still classified as high risk by most acquirers. Square accepts it under the conditions above. Other processors will too, generally at higher rates and sometimes with a rolling reserve. The rule that catches CBD retailers most often is not about payments at all: no product claim may say your CBD cures, treats or helps a medical condition, and that includes anxiety, inflammation, depression, PTSD and cancer. Health claims are what get CBD merchant accounts closed, more reliably than the products themselves.

One caveat that is becoming more common. If you sell intoxicating hemp products, delta-8, delta-9 beverages or similar, you are in a category that many processors treat as THC regardless of how the farm bill math works out, and several states now regulate it directly. Check your own state before assuming the CBD answer applies to you.

What a cannabis POS does that you are actually paying for

Once you accept that a licensed shop needs a purpose-built system, it helps to know where the money goes, because the feature lists all look identical on vendor websites.

The traceability integration is the core of it. Maintaining a working Metrc connection is ongoing engineering work, because the state changes its API and its rules and the vendor has to keep up in every state it operates in. That maintenance burden is most of what separates a cannabis POS from a general one, and it is why the category costs more.

Around that sit the things that keep a busy sales floor legal: limit enforcement that blocks an over-limit basket at the register rather than flagging it in a report the next morning, age and patient verification tied to the transaction, exit labeling, and inventory that reconciles to tagged packages rather than SKUs alone. Delivery adds another layer, with manifests, driver assignment and chain of custody logging, which is why several vendors price delivery capacity separately from register capacity.

What no POS solves is demand. It records the sale, it does not create it. That is a separate budget line, and it is the one most new operators underfund while paying for enterprise software that rings up a quiet store.

What getting this wrong costs

The visible cost is the wasted subscription, and for a CBD retailer talked into a cannabis platform that runs to several thousand dollars a year for nothing. The larger cost sits on the dispensary side. A frozen merchant account takes your working capital out of reach at a moment you cannot control. A reporting gap in state traceability is a license matter, not a bookkeeping one, and regulators treat inventory that does not reconcile as a diversion question until you prove otherwise.

There is a tax dimension too. Section 280E still applies to adult-use operators, so you can deduct cost of goods sold but not ordinary business expenses. That makes accurate, defensible inventory costing directly worth money, and it is one more reason the register has to be tied properly to tagged packages. It also means your back office should keep operating expenses cleanly separated from cost of goods from day one, because reconstructing that split a year later, under examination, is far more expensive than recording it correctly as you go.

How to choose once you know which category you are in

For a licensed dispensary, shortlist on three things in this order: whether the vendor has a maintained integration with your state's traceability system, whether it handles the mix of storefront and delivery you actually run, and what the total first-year number looks like once hardware and processing are included. Feature grids are close to useless for this, because every vendor claims every feature.

Pricing transparency varies enormously and is worth using as a filter. Most of the market, including Dutchie, Flowhub, Cova and Treez, quotes only after a demo, which our comparison of dispensary POS systems works through vendor by vendor. A few publish real numbers: IndicaOnline pricing is listed openly in tiers from $240 a month billed annually, which makes it a useful yardstick to hold any vague quote against, whether or not you end up choosing it. For the full first-year arithmetic including hardware and setup, our breakdown of what a dispensary POS system costs covers the lines that do not appear on the quote, and if you are replacing an existing system the sequence to follow is in our guide to switching dispensary POS systems.

Whichever way that decision goes, budget for the demand side alongside it. A compliant register only earns when there are people standing in front of it, and for most shops that means a verified Google Business Profile, an indexable menu, and a licensed directory listing doing the discovery work the POS was never built to do.