What Is Section 280E and Why Does It Exist
Section 280E of the Internal Revenue Code is a two-sentence provision enacted in 1982 after a convicted drug dealer named Jeffrey Edmondson successfully deducted business expenses (including the cost of a scale, packaging materials, and his phone line) from his drug trafficking income. Congress responded with this language:
*"No deduction or credit shall be allowed for any amount paid or incurred during the taxable year in carrying on any trade or business if such trade or business (or the activities which comprise such trade or business) consists of trafficking in controlled substances (within the meaning of schedule I and II of the Controlled Substances Act) which is prohibited by Federal law or the law of any State in which such trade or business is conducted."*
In plain English: if your business involves selling a Schedule I or Schedule II controlled substance, you cannot deduct your operating expenses on your federal tax return. Cannabis remains classified as Schedule I under federal law, so every licensed cannabis business in the United States is subject to 280E, whether you operate in a mature legal market or just received your first license, whether medical or adult-use, whether you generate $500,000 or $50 million in revenue.
The provision was never designed for legitimate, state-licensed businesses. It was designed to prevent drug dealers from subsidizing their operations with tax deductions. But until federal law changes, every cannabis operator must navigate it.
How 280E Works in Practice
Under normal tax rules, a business calculates its taxable income by subtracting both the cost of goods sold (COGS) and its operating expenses from gross revenue. A restaurant deducts food costs as COGS and also deducts rent, payroll, marketing, insurance, and every other ordinary business expense. What remains is taxable income.
Under 280E, cannabis businesses can subtract COGS from gross revenue, but they cannot deduct any operating expenses. This is because COGS is technically not a "deduction." It is an adjustment to gross receipts used to calculate gross income. The distinction was confirmed by the Tax Court in the landmark CHAMP case (Californians Helping to Alleviate Medical Problems, Inc. v. Commissioner, 128 T.C. No. 14, 2007), and the IRS has acknowledged it in multiple rulings.
Here is what the math looks like in practice. A dispensary doing $5M in revenue with $2M in COGS and $2M in operating expenses pays an effective federal tax rate of approximately 70% under 280E, compared to roughly 21% for a non-cannabis business with identical financials. The non-cannabis business reports $1M in taxable income ($5M minus $2M COGS minus $2M operating expenses) and pays about $210,000 in federal tax. The dispensary reports $3M in taxable income ($5M minus $2M COGS, with zero deduction for the $2M in operating expenses) and pays about $700,000 in federal tax on $1M of actual profit.
That $490,000 difference is the 280E penalty. And it is why cannabis tax strategy is not optional. It is survival.
COGS vs. Operating Expenses: Where Every Dollar Falls
The entire 280E game comes down to one question: which of your costs legitimately belong in cost of goods sold? Every dollar that moves from "operating expense" to "COGS" reduces your taxable income and your federal tax bill. Every dollar that stays in operating expenses is permanently non-deductible.
Costs That Qualify as COGS
- Direct materials: Cannabis purchased for resale, seeds, clones, nutrients, growing media, soil amendments, packaging materials for finished goods
- Direct labor: Cultivation workers, trimmers, extraction technicians, packaging line staff, QC personnel
- Freight-in: Shipping and transportation costs to bring inventory or raw materials to your facility
- Production facility costs (for producers): Rent, depreciation, utilities, insurance, and maintenance for cultivation, extraction, or manufacturing space
Costs That Do NOT Qualify as COGS
- Selling expenses: Budtender wages, marketing, advertising, POS systems, loyalty programs
- General and administrative: Executive salaries (unless directly supervising production), legal fees, accounting fees, office supplies, HR costs
- Delivery costs: Transportation of finished goods to customers, delivery driver wages, vehicle expenses
- Regulatory compliance: License fees, state regulatory costs, Metrc/seed-to-sale tracking fees (unless tied directly to production inventory tracking)
The gray area between these two categories is where sophisticated 280E tax planning generates real savings.
280E by License Type: Who Has the Most COGS Opportunity
Not all cannabis licenses are created equal under 280E. The type of license you hold determines how much of your total cost structure can legitimately be classified as COGS.
Cultivators
Cultivators have the largest COGS opportunity of any license type because cultivation is fundamentally a production activity. Direct materials, direct labor, and allocable indirect costs (facility rent, grow-light electricity, HVAC, water, equipment depreciation) all belong in COGS when properly documented. A well-structured cultivation operation can typically classify 55% to 75% of total operating expenses as COGS. For cultivator-specific strategies, see our guide on 280E for cannabis growers.
Manufacturers and Processors
Manufacturers occupy the second-best position. Extraction, infusion, and product manufacturing are production activities, so direct materials, direct labor, and allocable indirect costs are all includable in COGS. Most manufacturers can classify 50% to 65% of total expenses as COGS. Our 280E COGS allocation guide for manufacturing covers the specifics.
Distributors
Distributors sit in a middle ground. COGS consists primarily of cannabis purchased for resale, plus freight-in and costs associated with receiving, inspecting, and storing inventory. Warehouse rent and facility utilities can be partially allocated to COGS based on the portion used for inventory handling. Distributors typically classify 40% to 55% of total expenses as COGS.
Retailers and Dispensaries
Dispensaries have the most limited COGS opportunity because retail is not a production activity. COGS is primarily the wholesale cost of cannabis purchased for resale, plus freight-in and direct costs of receiving product. Budtender wages, store rent, marketing, and most overhead are selling expenses. Dispensaries typically classify only 35% to 50% of total expenses as COGS, which is why they face the highest effective tax rates and why entity structuring (discussed below) is most critical for retail operators.
Vertically Integrated Operations
Vertically integrated businesses must allocate costs across their production and retail segments. The production side gets favorable COGS treatment. The retail side does not. Proper segmentation and transfer pricing between activities is essential, and getting this wrong is one of the most common and costly mistakes in cannabis accounting.
The 280E Cost Study: What It Is and Why You Need One
A 280E cost study is a formal analysis that identifies every cost in your operation that can defensibly be included in COGS under IRC Section 471. It is not a back-of-the-envelope estimate. It is a documented, methodology-driven report that maps your facility, tracks labor activities, allocates indirect costs based on measurable data, and produces a defensible COGS calculation.
Here is what a cost study typically uncovers. A mid-size cultivation operation generating $4M in annual revenue and reporting $1.2M in COGS on a direct-cost-only basis often has an additional $400,000 to $800,000 in indirect costs that are properly allocable to COGS as costs of procuring, securing, and maintaining inventory. Those additional deductions reduce federal taxable income dollar-for-dollar, saving $140,000 to $280,000 in federal taxes at a 35% effective rate. The cost of the study itself is typically $15,000 to $30,000, producing a first-year return on investment of 5x to 18x.
A proper cost study includes floor plans with square footage measurements broken into production, storage, administrative, and selling areas. It includes a time-and-activity analysis documenting what percentage of each employee's time is spent on production versus non-production tasks. It includes utility allocation based on sub-meter data or engineering estimates, an equipment depreciation schedule identifying all production equipment, and written methodology documentation with supporting calculations.
If you do not have a cost study, you are almost certainly overpaying your federal taxes. And if you are ever audited, you will not have the documentation needed to defend your COGS position.
Section 471 and Inventory Cost Rules
Cannabis businesses are required to follow Section 471 of the Internal Revenue Code for inventory accounting purposes. Under Section 471, COGS includes all costs directly and indirectly related to procuring, securing, and maintaining inventory. This is the key provision that allows cannabis operators to pull far more costs into COGS than most realize.
The phrase "procuring, securing, and maintaining inventory" is broad by design. For cannabis producers and retailers, it means COGS can include not just the obvious direct costs (seeds, nutrients, wholesale product), but also the indirect costs required to bring that inventory into saleable condition and keep it there:
- Rent or depreciation for production and storage facilities (allocated by square footage used for inventory-related activities)
- Utilities serving production and storage areas (electricity for grow lights, HVAC, water for irrigation, climate control for inventory storage)
- Labor costs for employees involved in procuring, handling, processing, or maintaining inventory
- Maintenance, repair, and depreciation of production equipment
- Insurance on production facilities, storage areas, and equipment
- Security costs for facilities where inventory is stored or processed
- Quality control and compliance testing tied to inventory
- Factory supplies and indirect materials (gloves, sanitation supplies, PPE)
The IRS has confirmed that cannabis businesses must calculate COGS using the pre-2018 inventory accounting rules under Section 471. This framework provides cannabis operators with a well-established set of rules for determining which costs belong in inventory and, by extension, in COGS.
For a detailed breakdown of how these rules apply to cultivation, see our 280E COGS allocation guide for cultivators.
Common 280E Mistakes That Trigger Audits
The IRS has audited cannabis businesses at a far higher rate than the general business population since 280E became a focus area. Based on hundreds of cannabis engagements at Northstar, these are the mistakes that most frequently trigger examinations or result in adverse adjustments:
Commingling production and non-production expenses. Dumping all facility costs into one general ledger account and allocating a percentage to COGS without documented support is a red flag. The IRS wants separate tracking with a clear allocation methodology.
No cost study or outdated cost study. Filing a return with a high COGS ratio and no formal cost study to support it is an invitation for an audit. A current, well-documented cost study is your primary defense.
Aggressive COGS allocations without documentation. Claiming that 80% of your dispensary's rent is allocable to COGS because you have a back room where you receive inventory will not hold up. Allocations must be based on actual square footage, time studies, or utility consumption data.
Inconsistent year-over-year methods. Switching allocation methodology between years without a clear business reason signals result-shopping rather than consistent accounting.
Including obviously non-COGS items in COGS. Marketing expenses, executive bonuses, legal fees, and accounting fees are never COGS. Including them, even buried in a large allocation, will result in adverse adjustments.
Failing to maintain contemporaneous records. The IRS expects time logs, floor plans, utility records, and batch-level cost tracking. Reconstructing these after receiving an audit notice is expensive and less credible.
The IRS Audit Landscape for Cannabis Businesses
The IRS has dedicated examination resources to the cannabis industry since 2015, and enforcement has intensified. Cannabis businesses are audited at an estimated 3x to 5x the rate of comparable non-cannabis businesses, with operations generating more than $2M in revenue and COGS ratios above 60% facing the highest likelihood of examination.
In most cannabis audits, the central issue is COGS substantiation. The examiner will request your cost study, allocation methodology, facility floor plans, labor records, and general ledger detail. If you cannot produce these documents, the IRS will recalculate your COGS using a much less favorable methodology. The IRS routinely asserts accuracy-related penalties (20% of the underpayment) and, in egregious cases, fraud penalties (75%) against cannabis businesses. State audits from agencies like California's Franchise Tax Board often follow federal adjustments.
The best preparation is straightforward: maintain clean books, commission a formal cost study, document your allocation methodology, and file returns you can defend line by line. Our cannabis business audit checklist can help you assess your current exposure.
Defensible Planning Strategies Under 280E
There are legitimate strategies that reduce the 280E burden. The key word is "defensible." Every strategy must be supported by economic substance, proper documentation, and a reasonable interpretation of the tax code. Here are the approaches that hold up under scrutiny.
Entity Structuring and the Management Company Model
One of the most effective 280E strategies involves separating the cannabis-touching activities from non-cannabis activities through a management company structure. The cannabis license holder pays a management fee to a separate, non-cannabis entity that provides HR, accounting, marketing, IT, and general management. Because the management company does not traffic in controlled substances, it is not subject to 280E and can deduct its operating expenses normally.
This structure must have economic substance. The management company must be a real business with employees, a separate bank account, its own books, and arm's-length pricing. A management company that charges 40% of the operating company's revenue and employs two people will not survive IRS scrutiny. One that charges 8% to 15% of revenue with a documented scope of services at fair market value pricing is defensible.
Proper Allocation Methodology
For facility costs, square footage allocation is the most common and defensible method. For labor, time-and-activity studies documenting actual hours on production versus non-production tasks produce the strongest results. For utilities, sub-metering provides the best data, though engineering estimates based on equipment specifications are acceptable. Whatever methodology you choose, document it in writing, apply it consistently year over year, and update it when operations change materially.
Transfer Pricing for Vertically Integrated Operations
If you cultivate, manufacture, and sell cannabis through the same entity or a group of related entities, the transfer prices between activities directly affect how much of your total cost structure is treated as COGS at the retail level. Setting transfer prices at arm's length, supported by comparable market data, ensures that the retail entity's COGS reflects a fair share of total production cost, including all indirect costs related to procuring, securing, and maintaining inventory.
The Federal Rescheduling Question
The DEA's proposed rescheduling of cannabis from Schedule I to Schedule III, first announced in 2024, remains in process as of early 2026. If finalized, rescheduling would effectively eliminate the application of 280E to cannabis businesses because 280E only applies to Schedule I and Schedule II substances.
However, operators should not plan their 2026 tax strategy around rescheduling. The regulatory process has been slower than expected, legal challenges are ongoing, and even if rescheduling is finalized this year, the effective date and transition rules remain unclear.
Here is what you should do right now, regardless of where rescheduling stands:
1. File defensible returns for all open tax years. If 280E is eventually repealed retroactively (unlikely but possible), you can amend. If it is not, you need returns that survive examination. 2. Maintain a current cost study. Whether 280E applies for one more year or ten more years, a cost study pays for itself in the first filing season. 3. Preserve your records. Keep all allocation documentation, floor plans, labor studies, and utility records for at least seven years. 4. Work with a tax advisor who specializes in cannabis. General-practice CPAs routinely leave $100,000 or more on the table because they do not understand how to maximize COGS under Section 471 in a cannabis production environment. Northstar has served hundreds of cannabis clients across every license type, and the difference between a generic 280E return and a properly optimized one is often six figures annually.
The Bottom Line
Section 280E is punishing, but it is not a black box. The operators who pay the least tax under 280E understand exactly which costs belong in COGS, document those classifications rigorously, and apply consistent allocation methodologies supported by formal cost studies.
If you do not have a current cost study, that is the single highest-ROI action you can take this year. If your cost study is more than two years old or your operations have changed materially, it is time for an update. The rules are knowable, and the savings are real.