Section 280E of the Internal Revenue Code

This article is general information, not legal advice. Laws change; check current rules with official sources or a lawyer.

What Section 280E says

The full text of IRC § 280E is short: "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." ^[1]

In practice this means a state-legal cannabis business cannot deduct ordinary and necessary business expenses—rent, wages for non-production staff, advertising, utilities for retail space, professional fees—when calculating federal taxable income. Strong evidence ^[2] These expenses are disallowed deductions, meaning they reduce taxable income by zero at the federal level, even though they are legitimate business costs and are often deductible under state law.

Historical origin: the Edmondson case

Section 280E was enacted in direct response to Edmondson v. Commissioner (1981), a Tax Court decision in which a convicted drug dealer successfully deducted business expenses—including a portion of his home, a scale, and packaging materials—against his illegal drug income. ^[3] Congress reacted the following year by enacting § 280E as part of the Tax Equity and Fiscal Responsibility Act of 1982, explicitly to prevent traffickers in Schedule I and II substances from claiming such deductions. ^[4]

The statute was written decades before any U.S. state legalized cannabis. Strong evidence It now applies to licensed, state-regulated cannabis businesses operating in full compliance with state law—a use case Congress did not contemplate in 1982.

The COGS workaround and its limits

280E disallows deductions, but the federal tax system computes gross income as revenue minus cost of goods sold (COGS). COGS is not a deduction; it is a subtraction from gross receipts used to compute gross profit. Strong evidence ^[5] Because of this technical distinction, cannabis businesses can still reduce taxable income by capitalizing and recovering production costs through COGS.

The Tax Court has clarified the boundaries of this workaround. In Californians Helping to Alleviate Medical Problems (CHAMP) v. Commissioner (2007), the court allowed a dispensary also operating as a caregiving service to allocate expenses between the two trades or businesses, deducting the non-trafficking portion. In Patients Mutual Assistance Collective Corp. (Harborside) v. Commissioner (2018), the court rejected aggressive COGS allocations and confirmed that cultivators generally have more room than retailers to shelter costs, because production expenses legitimately fall into inventory under IRC § 471. Strong evidence

Practical consequence: cultivators and manufacturers can capitalize more operating costs into inventory and recover them as COGS. Pure retailers (dispensaries with no cultivation or manufacturing) have very limited ability to shelter costs this way.

Financial and business impact

Because operating expenses are non-deductible, federal taxable income for a cannabis retailer is often far higher than its actual net profit. Industry reporting and analysis have documented that cannabis operators face effective federal tax rates substantially higher than typical business rates. ^[6] Strong evidence Some unprofitable or marginally profitable businesses have owed federal taxes despite operating at a loss.

This tax burden is widely cited as a contributing factor to financial distress among multi-state operators (MSOs), dispensary closures, and the persistence of illicit-market competition, which faces no such federal tax penalty.

Recent developments and reform paths

Several paths could remove 280E's application to cannabis:

Rescheduling In May 2024 the U.S. Department of Justice published a proposed rule to move cannabis from Schedule I to Schedule III of the Controlled Substances Act, following a recommendation from the Department of Health and Human Services. ^[7] Because § 280E applies only to Schedule I and II substances by its plain text, rescheduling cannabis to Schedule III would, if finalized, automatically remove cannabis businesses from 280E's scope. Strong evidence As of October 2026, this rulemaking remains ongoing and has not been finalized.

Descheduling or legislation Broader cannabis reform bills could address 280E. The SAFE Banking Act and similar proposals do not directly change 280E. The MORE Act would, but it has not been enacted as of this writing.

Litigation Several operators have challenged 280E on constitutional grounds (invoking the Eighth and Sixteenth Amendments and due process). Courts have rejected these challenges. In Northern California Small Business Assistants v. Commissioner (2019), the Tax Court upheld 280E against constitutional challenge.

IRS Position In mid-2024, the IRS reaffirmed that Section 280E remains in effect and binding until rescheduling is officially completed. ^[8] Strong evidence

Common legal strategies

Licensed cannabis operators use several lawful approaches to minimize 280E impact:

• Vertical integration and inventory capitalization: Structuring cultivators and manufacturers to maximize inventoriable costs under IRC § 471, allowing those costs to be recovered through COGS rather than disallowed deductions.
• Entity separation: Following the CHAMP model to separate non-trafficking trades or businesses (e.g., merchandise sales, consulting, real estate holding companies) into distinct legal entities with clean accounting, so only the trafficking portion is subject to 280E.
• Cost accounting methods: Using proper accounting methods that capitalize indirect production costs (labor, utilities tied to growing/processing) into inventory rather than expensing them.
• Specialist CPA guidance: Working with certified public accountants and tax attorneys experienced in cannabis tax. Strong evidence Improper or aggressive COGS allocations are a known IRS audit trigger.

What does not work: simply deducting standard SG&A (selling, general, and administrative) expenses, ignoring 280E, or relying on state-level 280E conformity. Many states including California and Massachusetts have decoupled from 280E for state tax purposes, but that does not affect federal liability. ^[9]

Not legal advice

This article is informational only and is not legal, tax, or accounting advice. Tax positions under 280E and IRC § 471 are highly fact-specific. Rescheduling and any related IRS guidance may change the law. Before making business or tax decisions, consult a licensed CPA or tax attorney with documented cannabis tax experience.

Last verified: October 31, 2026. Federal rescheduling proceedings are ongoing; verify current status before relying on this article.

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