How a Cannabis Retailer Cut Its Effective Tax Rate With a Defensible COGS Method

How a Cannabis Retailer Cut Its Effective Tax Rate With a Defensible COGS Method

A dispensary can be profitable on paper, pay its rent, pay its staff, run a tight store, and still owe federal tax on almost every dollar it brings in.

That's not a horror story. That's the default. It's what Section 280E does to anyone selling a federally controlled substance. And it's the exact trap this cannabis 280E COGS case study walks through, step by step, with the math.

One quick note before we start: the dispensary below is an illustrative composite built for education. The numbers are hypothetical and meant to show how the rules actually work, not to report a specific audited client.

Why a dispensary owes tax on revenue, not profit (the 280E COGS problem)

Here's the part that catches new operators off guard.

Section 280E denies any deduction or credit for a business that "traffics" in a Schedule I or Schedule II controlled substance. Marijuana is still Schedule I federally. So the IRS reads the statute literally: no deduction for rent, no deduction for payroll, no deduction for marketing, insurance, or your point-of-sale system. The ordinary operating expenses that every other retailer subtracts simply don't count.

What's left is gross profit getting taxed like it's net profit.

Consider the composite. Call it Stone & Sprout, a single-location dispensary doing $3M in revenue. It buys $1.5M of product at wholesale. It spends another $1.1M running the store: budtenders, lease, security, software, marketing. In a normal world its taxable income is $400K. Under 280E, the $1.1M of operating expense is denied, so its taxable income is closer to $1.5M.

At a 21% corporate rate, that's roughly $315K of tax on a business that actually netted $400K. The effective tax rate on real economic profit pushes past 75%. That's the 280E problem in one line, and it's why dispensary tax planning starts and ends with one number.

The COGS channel 280E never closed: the heart of this case study

Now the good news, and it's the whole point of this cannabis 280E COGS case study.

Section 280E disallows deductions. It says nothing about cost of goods. And COGS isn't a deduction. It's a reduction of gross receipts that happens before you ever calculate gross income. The Tax Court and the IRS have both confirmed this repeatedly: a cannabis business may still subtract the cost of its inventory to arrive at gross income, then 280E bites everything below that line.

So the entire game for a dispensary is this: capture every cost the law legitimately lets you put into COGS, and not a dollar more.

The rules that govern what belongs in COGS aren't a loophole. They're the inventory regulations under IRC Section 471 as they existed in 1982, the year 280E was enacted. That frozen-in-time reference matters, because it tells you which costs are inventoriable and which are stuck on the wrong side of the line.

Where Anomaly CPA started: the inventory rules, not the gray area

When Anomaly CPA approached this kind of file, the move wasn't to get clever. It was to get clean.

The reason most dispensaries overpay isn't that they take an aggressive position. It's that they take no position at all. Product gets booked at wholesale cost, and everything else gets dumped into operating expense, where 280E kills it. A retailer that does this typically lands with only 35% to 50% of its total spend recognized as COGS, the narrowest band of any cannabis business, because a dispensary buys finished product instead of growing it.

Anomaly's approach was to rebuild the inventory accounting from the purchase order forward, asking one question of every dollar: under the Section 471 retailer rules, does this cost attach to the product or not?

A few things move under that test that owners routinely leave on the table:

• Freight-in and inbound transportation — the cost of getting product from the supplier to the store attaches to inventory, not to overhead.
• Receiving, inspection, and the labor tied to getting product shelf-ready — directly inventoriable when properly tracked.
• Testing, compliance, and packaging costs required before the product can be sold — these belong to the product, not to "marketing."

None of that is aggressive. It's the inventory rule applied correctly, which most generalist accountants never bother to do because they don't know the cannabis-specific lines.

What actually changed for the dispensary

Back to the composite. Suppose a careful 471 rebuild moves roughly $250K of cost out of denied operating expense and into legitimate COGS, where it survives 280E.

The math: that $250K now reduces gross income instead of being disallowed. At 21%, that's about $52K less federal tax. The store's taxable income drops from ~$1.5M toward ~$1.25M, and its effective rate on real profit falls from the mid-70s into a far more survivable range.

No magic. No offshore anything. Just costs landing in the column the statute actually permits.

There's a second payoff that doesn't show up on the return but matters more than people think. Clean inventory records are also an exam defense. The IRS audits cannabis businesses at a high rate, and the first thing it attacks is COGS allocation. A dispensary that can show a documented, consistent, 471-based method, tied to source documents, walks into that exam with a position it can defend. A dispensary that "estimated" walks in and loses.

A note on what's actually allowed, and what isn't

It's worth being honest about the ceiling, because that honesty is the whole credibility of the strategy.

A retailer can't inventory its way out of 280E entirely. Budtender wages spent selling, store rent, advertising, and most overhead are selling expenses, and selling expenses stay denied. Anyone promising to push those into COGS for a dispensary is selling you an audit.

There is also a separate small-taxpayer provision under Section 471(c) for businesses under a gross-receipts threshold (in the low tens of millions, indexed for inflation) that lets them follow their books and records for inventory. Whether and how that helps a specific cannabis business is genuinely fact-dependent and contested, which is exactly the kind of judgment call you want a specialist making, not a tax-prep mill.

And the macro picture is shifting under everyone's feet: a proposed federal move of marijuana from Schedule I to Schedule III would eventually take 280E out of play, but as of May 2026 that rulemaking still isn't finished. Until it is, 280E is the law, and COGS is the channel.

Find a cannabis accountant who knows where the line actually is

If you run a dispensary and your effective tax rate looks closer to your revenue than your profit, you don't have a tax problem. You have an accounting-method problem, and it's fixable inside the rules.

The fix is a defensible, 471-grounded COGS method built by someone who has done it before, not a generalist learning 280E on your dime. Anomaly CPA works in this corner of the tax code, and you can read what their actual clients say on their verified Sam's List profile before you ever get on a call.

Read Anomaly CPA's verified reviews on Sam's List and book an intro call. Bring your last return and your chart of accounts. The first thing worth asking: how much of my spend is sitting in operating expense that the inventory rules would let me move?

That one question, answered correctly, is the difference between a 75% effective rate and a survivable one.