How Section 280E Actually Works in Practice
280E disallows Section 162 ordinary and necessary business expenses for a plant-touching trade or business, but it cannot reach cost of goods sold, because COGS reduces gross receipts before gross income is ever calculated. That constitutional floor is the entire foundation of every legitimate cannabis tax strategy an Arizona operator can run.
The practical fallout is direct: costs a normal Scottsdale or Mesa retailer would deduct without a second thought, marketing spend, delivery mileage, front-of-house payroll, disappear at the federal level. Costs that are properly inventoriable under Sections 471 and 263A survive. An operator who treats 280E as an April problem finds out too late what was lost; one who treats it as a chart-of-accounts problem keeps every dollar the code allows.
- Section 162 deductions: disallowed for the plant-touching trade or business
- Cost of goods sold: preserved, and governed by Sections 471 and 263A
- Tax credits: generally disallowed alongside ordinary deductions
- Arizona TPT and excise tax: unaffected by 280E, filed separately with ADOR
COGS Methodology That Holds Up on Examination
The IRS has repeatedly challenged cannabis taxpayers for reclassifying selling expense as inventory cost. CHAMP, Olive, Patients Mutual (Harborside) and the line of cases that followed all point the same direction: a reseller's COGS stops at invoice cost plus the transportation and charges necessary to acquire the product, while a true producer may capitalize a much wider band of indirect production cost.
That distinction is what drives structure for Arizona operators. A dispensary retailer has a narrow COGS ceiling. A cultivator or infused-product manufacturer, standing as a producer, capitalizes direct materials, direct labor and defined indirect production costs into inventory and recovers them through COGS as product moves. We put the methodology in writing, tie it to the general ledger, and preserve the workpapers behind every allocation.
Retail (Reseller) Positions
For an ADHS-licensed dispensary, we capture invoice cost, inbound freight, and the narrow band of acquisition costs the reseller rules allow. Where a non-plant-touching function operates alongside the retail floor, we separate it with real economics, distinct books, arm's-length agreements and documented personnel time, not just a second name on the door.
Producer Positions
Cultivators and manufacturers capitalize direct materials, direct labor and allocable indirect production cost. Grow-room electricity, nutrient inputs, cultivation payroll, equipment depreciation, in-process testing and quality assurance are typically inventoriable. We build a standard-cost or actual-cost model, reconcile it against production output tracked in METRC or a comparable seed-to-sale system, and revalue inventory at each period end.
Year-Round Planning Beats Filing-Season Triage
A defensible 280E position is created during the year, in how costs are coded at the point of entry, not reconstructed in April. We set the chart of accounts to separate inventoriable from non-inventoriable cost from day one, run a quarterly effective-rate review, and model estimated payments against actual gross margin rather than a stale prior-year safe harbor.
Planning also means avoiding the two costliest mistakes we see across Maricopa and Pima County operators: underfunding federal estimates while current on TPT and excise remittances to ADOR, and taking aggressive expense positions with no contemporaneous file behind them. Both are cheap to fix ahead of time and expensive to fix after the fact.
- Quarterly effective tax rate modeling and cash tax forecasting
- Reasonable compensation and owner distribution review
- Entity separation analysis where a genuine second trade or business exists
- Written methodology memoranda maintained with the permanent tax file
Documentation, Substantiation and Audit Readiness
Plan on examination. Cannabis returns draw federal attention because of the dollars at stake in a full COGS disallowance and because the industry runs cash-heavy. The taxpayer carries the burden of proving inventory cost, so the workpaper file matters as much as the return itself.
We keep a standing audit file year-round: inventory valuation workpapers tied to seed-to-sale quantities, labor allocation studies backed by time records, function-based depreciation schedules, intercompany agreements, and the memoranda supporting every material position. When ADOR or the IRS opens an inquiry, the response package already exists.
How Arizona State Tax Interacts With 280E
Arizona income tax generally follows the federal 280E disallowance for state income tax purposes, so an Arizona operator cannot count on a state deduction to soften the federal blow the way some other states allow. That makes Arizona TPT and the marijuana excise tax, which are entirely separate transaction-based taxes administered by ADOR, the areas where planning actually moves the needle rather than a source of relief from 280E itself.
Because there is no state-level offset, the whole burden of legitimate tax reduction sits on the COGS methodology. We calibrate compensation planning, lease structuring and entity design around that reality rather than a conformity gap that does not exist here.
What 280E Costs a Real Arizona Operator
Consider a Phoenix storefront retailer with $6,000,000 of gross receipts, a 48 percent product margin and $2,300,000 of operating expenses. Gross profit is roughly $2,880,000 and book pre-tax income is roughly $580,000. Federally, almost none of the $2,300,000 is deductible, so the tax base is gross profit rather than income. The result is a federal liability calculated on nearly five times the economic profit, an effective rate that would be absurd in any other industry.
Now move the same operator to cultivation. A Pinal County mixed-light cultivator with the same revenue capitalizes cultivation payroll, nutrients, power, water, grow-room depreciation and quality assurance into inventory. The disallowed pool shrinks to sales, marketing and general administration, and the effective rate falls dramatically. Nothing about the underlying economics changed, only the license type and the quality of the cost accounting behind it.
This is why we start every 280E engagement with a modeled comparison of current-state and properly-costed federal liability. The gap is usually large enough to fund the entire accounting function several times over, and it is quantified before any work is done.
Case Law That Shapes Every Position We Take
CHAMP established that a taxpayer can operate a separate, non-trafficking trade or business alongside a cannabis business and deduct the expenses of that separate business. It also established the standard: genuine separateness, supported by real allocation of employee time, space and expense. Olive narrowed the practical scope by rejecting a claimed second business that was in substance a way to give away services to cannabis customers.
Patients Mutual, the Harborside case, closed the door on retailers dressing selling expenses as inventory cost and confirmed that a reseller's COGS is governed by the reseller rules. Subsequent decisions reinforced that 263A does not expand a trafficker's inventoriable costs beyond what 471 already permits for that taxpayer type.
The through-line is that structure and documentation win cases, and creative recharacterization loses them. We take positions we can trace to a specific inventory rule, and we write down why, at the time, not in response to an information document request.
- CHAMP: separate trade or business is possible, with real economic separation
- Olive: form without substance fails
- Patients Mutual: resellers cannot inventory selling costs
- Consistency across years matters as much as the position itself
