Cannabis operators face a tax burden no other legal industry carries, and disciplined 280E cost accounting is the only lawful way to soften it. Internal Revenue Code Section 280E denies ordinary business deductions to any trade or business that traffics in a Schedule I or Schedule II controlled substance, which still includes marijuana under federal law. The single deduction that survives is cost of goods sold (COGS), so the accuracy and defensibility of your cost allocations directly determines how much federal tax you actually pay.
Quick answer: Under Section 280E you cannot deduct ordinary operating expenses, but you can still reduce gross receipts by cost of goods sold computed under Section 471. To do this defensibly, capitalize only the direct and indirect production costs that the Section 471 inventory regulations allow into inventory, keep cultivation and processing costs separate from selling and administrative costs, and document every allocation with contemporaneous records. You cannot use Section 263A to capitalize expenses that 280E already disallows.
Why 280E Forces Cannabis Onto a COGS-Only Model
Section 280E was enacted in 1982 as part of the Tax Equity and Fiscal Responsibility Act, directly in response to the Tax Court decision in Edmondson v. Commissioner, where a taxpayer dealing in controlled substances was allowed to deduct ordinary business expenses such as rent, telephone, and auto costs. Congress reversed that result for trafficking businesses, disallowing deductions and credits for amounts paid or incurred in that trade or business.
The statute stops short of taxing gross receipts outright. The legislative history makes clear that Congress preserved the cost of goods sold offset to avoid constitutional challenges, because COGS is treated as a reduction of gross receipts rather than a deduction. For cannabis companies, that distinction is the whole game: rent in a cultivation facility may be recoverable through inventory, while the identical rent in a dispensary sales floor is permanently lost.
This is why a cannabis business cannot run its books like a conventional retailer or manufacturer. Every dollar of spending has to be sorted into one of two buckets: a production cost that can be capitalized into inventory and eventually flow through COGS, or a selling, general, and administrative cost that 280E disallows. Getting that classification right requires both tax knowledge and operational detail, which is why many operators work with advisors who specialize in the cannabis industry.
The financial stakes are larger than they first appear. A conventional business pays tax on net profit after expenses, but a cannabis business that recovers little through COGS effectively pays tax on a figure much closer to gross profit. Two operators with identical revenue and identical real-world margins can post very different federal liabilities purely because one captured its allowable production costs and the other did not. Cost accounting is therefore not a back-office function in this industry; it is the primary lever on after-tax cash.
What Section 471 Lets You Capitalize Into Inventory
The governing authority for what counts as COGS is Section 471 and its regulations, which set the rules for valuing inventory. The IRS confirmed in Chief Counsel Advice memorandum 201504011 that a cannabis taxpayer must compute COGS using the Section 471 inventory-costing regulations as they existed when Section 280E was enacted, not the broader capitalization rules that came later. That memorandum is publicly available from the IRS Office of Chief Counsel.
Under those rules, the costs you can capitalize depend on what kind of operation you run. A producer such as a cultivator or processor generally uses the full-absorption inventory method, which captures direct material and direct labor along with a defined set of indirect production costs. A reseller such as a dispensary capitalizes a much narrower set, essentially the invoice price of the product plus the cost of getting it to the store, often described as landed cost.
For a producer, the indirect production costs that the Section 471 full-absorption regulations recognize include items such as:
- Indirect labor and supervisory wages tied to production
- Utilities and rent for the cultivation or manufacturing space
- Repair, maintenance, and depreciation on production equipment and facilities
- Indirect materials and supplies consumed in growing or processing
- Quality control and inspection costs
The principle that ties these together is causation. A cost belongs in inventory only if it is incurred to produce or acquire the product. Marketing, retail rent, dispensary staff wages, executive salaries unrelated to production, and selling expenses stay outside inventory and fall to 280E disallowance.
It also helps to understand the difference between the two categories of indirect cost the full-absorption method recognizes. Some indirect production costs must be capitalized regardless of how the taxpayer treats them on its financial statements, while others follow the taxpayer’s book treatment. Cultivators who keep their book and tax inventory methods aligned reduce the number of reconciling items an examiner has to question, which is itself a meaningful defensibility advantage. The narrower the gap between your financial accounting and your tax accounting, the easier your position is to support.
The 263A Trap and Why It Does Not Help You
Many operators ask whether Section 263A, the uniform capitalization rules, can be used to pull more costs into inventory and out of the 280E disallowance. The answer from the IRS is no. In CCA 201504011 the Service explained that 263A is a timing provision, not a mechanism for converting non-deductible expenses into deductible ones.
The reasoning is straightforward. If a cannabis taxpayer could capitalize a 280E-disallowed cost under 263A and later recover it through COGS, that would transform a permanently disallowed deduction into a recoverable one, defeating the statute. Congress did not repeal or amend 280E when it enacted 263A, and nothing in the legislative history suggests an intent to let trafficking businesses route disallowed expenses through capitalization. The Congressional Research Service reaches the same conclusion in its analysis of Section 280E and marijuana businesses.
The practical takeaway is that 263A neither expands nor contracts what a cannabis business may capitalize. Producers look to the pre-280E Section 471 full-absorption regulations, resellers look to the Section 471 reseller rules, and 263A adds nothing to either. Building your cost model on 263A is a common and expensive mistake.
There is a subtle planning point hidden in this rule. Because 263A cannot rescue a disallowed cost, the real work happens earlier, at the moment a cost is classified as production or non-production under Section 471. Operators sometimes spend energy debating capitalization mechanics when the decisive question is simply whether a given expense is a true production cost in the first place. Focus your analysis there, and the 263A question largely answers itself.
A Defensible Allocation Method, Step by Step
Defensibility comes from method and documentation, not from aggressive classification. The goal is a cost-flow that an examiner can follow from a general ledger entry to an inventory account to COGS, with a clear rationale at each step.
Start by mapping your legal entity and your physical operations. Vertically integrated companies that cultivate, process, and sell under one roof should consider whether separate functional cost centers, or even separate entities, more accurately segregate production activity from retail activity. The cleaner the separation between the grow and the storefront, the more credible the COGS that flows from the production side.
Next, classify every expense account as production or non-production, and for shared costs establish a rational, consistently applied allocation base. Square footage is a common and well-supported base for splitting rent, utilities, and depreciation between a cultivation area and a sales area. Headcount or labor hours can allocate supervisory wages. Whatever base you choose, apply it consistently year over year and keep the workpapers that show the math.
Then build inventory subledgers that accumulate capitalized costs by product or batch, and reconcile them to your financial statements and seed-to-sale tracking system every period. Contemporaneous records carry far more weight in an examination than reconstructions prepared after a notice arrives. Because the line between a defensible position and a disallowed one is often fact-specific, it is worth coordinating your method with experienced tax advisory services before filing rather than after.
Finally, stress-test the result. Compare your effective tax rate and your COGS-to-revenue ratio against industry norms, and be ready to explain any figure that sits at the edge. The objective is not to minimize tax at any cost, but to claim every dollar of COGS the law permits and not one dollar more.
One organizational habit pays off repeatedly: write a short, dated memo that records why each shared-cost allocation base was chosen. When an examiner asks why rent was split 70 percent to cultivation, a contemporaneous note explaining the square-footage measurement carries far more weight than a verbal answer offered years later. Treat the rationale as part of the deliverable, not an afterthought.
Common Mistakes That Invite Adjustment
The fastest way to lose a 280E examination is to blur the production and retail lines. Treating dispensary rent, point-of-sale labor, or marketing as inventoriable invites a full disallowance of those amounts plus penalties. Keep selling and administrative costs clearly outside inventory.
A second frequent error is undocumented allocations. An allocation percentage with no supporting workpaper is treated as unsupported, and the burden generally sits with the taxpayer. Every split between production and non-production activity needs a written basis.
A third mistake is inconsistency. Switching allocation bases between years, or between entities, signals that the numbers are being engineered to a target rather than measured. Consistency is itself evidence of good faith and accuracy.
A fourth mistake is letting the financial records drift away from the seed-to-sale system the state requires. When the regulatory inventory data and the tax inventory subledgers tell different stories, an examiner has an easy thread to pull, and the resulting questions rarely end well for the taxpayer. Reconciling the two on a regular cycle closes that gap before it becomes a problem.
Frequently Asked Questions
Can a cannabis business deduct any operating expenses under 280E?
No. Section 280E disallows all deductions and credits attributable to the trade or business of trafficking in a Schedule I or Schedule II controlled substance. The only recovery available is cost of goods sold, which reduces gross receipts under Section 471 and is treated as a return of capital rather than a deduction.
Does Section 471(c) change the analysis for small cannabis businesses?
Section 471(c), added by the 2017 Tax Cuts and Jobs Act, lets certain small businesses that meet the gross receipts test follow their books and records for inventory. Some advisors have argued this could broaden inventoriable costs for qualifying cannabis taxpayers, but the position is unsettled and the IRS has not blessed it. Treat any 471(c) strategy as higher risk and document it carefully with professional guidance.
Why can a cultivator capitalize more costs than a dispensary?
Because the Section 471 regulations apply different rules to producers and resellers. A cultivator or processor is a producer using the full-absorption method, which captures direct and many indirect production costs. A dispensary is a reseller that generally capitalizes only the cost of acquiring product and bringing it to the location, leaving most of its operating costs subject to 280E.
Will rescheduling or descheduling marijuana end the 280E problem?
If marijuana were moved off Schedule I or Schedule II, Section 280E would no longer apply to those businesses, and ordinary deductions would return. Until any such change is final and effective, federal law still treats marijuana as a controlled substance, and operators must continue to file under the COGS-only model described here.
The Bottom Line
Section 280E will keep cannabis tax bills high for as long as marijuana remains federally controlled, but a rigorous COGS model built on Section 471 is both lawful and powerful. Capitalize only what the production-cost rules allow, keep production and retail strictly separated, abandon any reliance on 263A, and document every allocation as you go. Operators who treat cost accounting as a core compliance discipline rather than a year-end exercise consistently pay less and sleep better through an examination.
