280E and Why Energy Cost Control Matters More for Cannabis Operators

What Section 280E says

The statute is one sentence. No deduction or credit is allowed for any amount paid or incurred in carrying on a trade or business that consists of trafficking in controlled substances within the meaning of Schedule I and II of the Controlled Substances Act, where that trafficking is prohibited by federal law or the law of any state in which the business operates [usc-280e]. It was enacted in 1982 [usc-280e], long before any state licensed cannabis, and the IRS applies it to state-legal marijuana businesses because the activity is still trafficking under federal law [irs-marijuana-faq].

The practical effect: an ordinary business computes taxable income as revenue minus cost of goods sold minus operating expenses. A 280E business computes it as revenue minus cost of goods sold, full stop. Rent for the dispensary, payroll for budtenders, marketing, insurance, professional fees, and the electricity for the retail floor are all paid with money that has already been taxed.

Cost of goods sold is the exception, and utilities are in it

280E disallows deductions. It does not disallow cost of goods sold, because COGS is not a deduction; it is part of the calculation of gross income. The IRS says so directly: a marijuana business may reduce gross receipts by properly calculated COGS, computed under Section 471 and its regulations, while deductions such as advertising and selling expenses remain disallowed [irs-marijuana-faq].

That points to Treasury Regulation 1.471-11, which governs inventories of manufacturers. It requires indirect production costs to be included in inventoriable cost, and the list in paragraph (c)(2)(i) names repair expenses, maintenance, utilities such as heat, power, and light, rent, indirect labor and production supervisory wages, tools and equipment not capitalized, and quality control [treas-reg-1-471-11]. Paragraph (c)(2)(iii) adds depreciation on assets incident to and necessary for production [treas-reg-1-471-11]. The regulation's limiting phrase is that costs count only to the extent they are incident to and necessary for production or manufacturing operations [treas-reg-1-471-11].

For a cultivator, that means electricity and gas consumed in growing, drying, and curing product are generally inventoriable. For an extraction lab, energy consumed running the process is generally inventoriable. For a dispensary, energy for the retail floor is a selling expense and stays on the wrong side of the line. Which side a given meter falls on is an allocation question your CPA answers; what this page can tell you is that production energy is one of the largest cost lines in the industry that still counts, which is why energy as a share of COGS is a number every cannabis CFO should know.

Rescheduling status as of September 2026

This section will age. Here is the record as of the date on this page.

What changed in April 2026. On April 28, 2026, the Department of Justice published a final rule, 91 FR 22714, effective the same day, placing two categories of marijuana in Schedule III: marijuana in FDA-approved drug products, and marijuana subject to a state-issued license to manufacture, distribute, or dispense for medical purposes [fr-2026-08176]. The rule also created an expedited DEA registration process for holders of state medical licenses [fr-2026-08176]. Because 280E reaches only Schedule I and II substances [usc-280e], moving state-licensed medical marijuana to Schedule III takes it outside the statute's text for that activity.

What did not change. Marijuana outside those two categories, which includes all adult-use product, remains in Schedule I [gibson-dunn-rescheduling]. On the same day, DEA published a notice of hearing on the broader proposal to move all marijuana to Schedule III, with the hearing set to begin June 29, 2026 [fr-2026-08177]. That hearing ran from June 29 through July 15, 2026, and as of September 11, 2026 no decision had been issued, so adult-use marijuana remains Schedule I [cbt-rescheduling-status]. A court challenge to the medical order was turned back on September 9, 2026, when the D.C. Circuit left the order in effect [cbt-rescheduling-status]. Cannabis Business Times also reports that Treasury and the IRS had not, as of that date, issued guidance on how 280E applies to the federal returns of newly registered medical licensees, despite an April statement that guidance would follow [cbt-rescheduling-status]. The IRS marijuana FAQ page, last reviewed April 26, 2026, still describes 280E as applying to Schedule I and II trafficking without addressing the reschedule [irs-marijuana-faq].

What that means for an operator. Three situations, none of which this page can resolve for you:

1. Medical-only licensee that registered with DEA in the 60-day window: counsel may conclude 280E no longer applies going forward. Whether and how that plays out on 2026 returns awaits IRS guidance.
2. Adult-use operator: 280E applies. Nothing has changed.
3. Vertically integrated or dual-license operator: the same facility may produce both Schedule III medical product and Schedule I adult-use product. How costs, including energy, get allocated between the two is an open and consequential question for your tax advisor.

The rest of this page assumes 280E applies, because for most cultivators and every adult-use retailer it still does.

The after-tax math, done honestly

Consider two ways to save 100,000 dollars a year at an adult-use cultivator: cut 100,000 dollars of production electricity, or cut 100,000 dollars of marketing spend. Under 280E both leave 100,000 more dollars of cash in the business. The difference is what happens to the tax line.

Every number below is an assumption chosen to make the arithmetic visible. Assume a 21 percent federal rate and ignore state tax and all other complications.

The marketing cut looks better in this table. That is the correct reading, and it is the point people usually get backwards. Because a non-deductible expense never touched the tax calculation, cutting it saves the full dollar and changes nothing on the tax line. Cutting a COGS input raises taxable gross profit, so you keep 79 cents of each dollar saved.

So why does energy cost control matter more under 280E? Three reasons the table does not show.

The base is enormous. The marketing line at a cultivator is small and mostly already cut. Production energy, by the efficiency-program estimates collected on our benchmarks page, commonly runs 20 to 40 percent of an indoor grower's operating cost. There are simply more dollars available to save, and a 10 percent improvement on a large COGS line beats a 50 percent cut on a small opex line.

280E squeezes the dollars available to pay for savings. A non-cannabis business funds an LED retrofit, a controls upgrade, or an audit fee with pre-tax dollars because the cost is deductible or depreciable. A 280E business often cannot deduct the consulting fee, and depreciation on equipment that is not incident to production may be disallowed too. That raises the bar for paid efficiency projects and makes free levers, such as rate class corrections, supply contract restructuring, and photoperiod scheduling, disproportionately valuable. They cost nothing to implement, so there is no non-deductible spend to recover.

Effective tax rates are already high. When operating expenses are non-deductible, the tax as a share of true economic profit can run far above the statutory rate. In the baseline above, tax is 840,000 on true pre-tax profit of 1,500,000, an effective rate of 56 percent. In that environment, any lever that improves margin without adding non-deductible cost is worth pursuing before anything that does.

What to do with this

Get production energy onto its own meter or submeter. A separate account for cultivation space produces a clean utility record for the 471 allocation and avoids arguments about how much of a shared bill was the sales floor. Our page on submetering multi-tenant cannabis buildings covers how.

Prioritize zero-cost levers. Rate class review, supply contract structure, and demand scheduling change the bill without a capital outlay or a consulting invoice that 280E may not let you deduct. See fixed vs index vs block-and-index contracts for the contract side. Broker compensation in competitive states is typically embedded in the supplier's rate rather than billed to you, which is one reason operators use brokers; the FAQ on whether energy brokering is legal for cannabis companies covers that arrangement.

Model paid projects after tax. Before you commission an energy audit or a retrofit, ask your CPA whether the fee and the equipment are inventoriable or capitalizable in your structure. A project that pencils at a 21 percent rate may not pencil if the spend is non-deductible and the saving is taxable.

Watch the rescheduling docket, but do not wait for it. If adult-use marijuana moves to Schedule III, your operating expenses become deductible and the math above converges on an ordinary business. Your energy bill will still be one of your largest costs. Multi-state operators in particular should keep a procurement calendar that does not depend on federal timing; see multi-state operator procurement strategy.

Keep records like you expect an examiner. Bills, interval data, meter assignments, and the allocation method between production and non-production space are the documents that support the COGS position. They are also the documents a broker needs to fix your rate, so you get two uses out of one file.