The Basic Mechanics of Section 280E
Section 280E of the Internal Revenue Code denies ordinary business deductions to any business trafficking in a Schedule I or II controlled substance, which under federal law still includes cannabis regardless of Nevada's legal adult-use and medical programs. The practical result is that a Nevada dispensary or cultivator cannot deduct rent, marketing, most wages, or general administrative costs the way any other Nevada small business could. Only cost of goods sold survives the disallowance, which makes the COGS calculation the single most consequential number on a cannabis federal return.
This creates an unusual dynamic specific to Nevada: because the state itself imposes no personal or corporate income tax, 280E has zero effect on any Nevada tax return. Operators sometimes mistakenly believe Nevada's tax-friendly reputation extends to cannabis taxation broadly, when in fact the entire 280E burden lands on the federal return with no state-level offset available.
Why Nevada's Lack of State Income Tax Doesn't Help Here
In states with their own corporate income tax, some jurisdictions have decoupled from 280E to allow state-level deductions the IRS disallows, softening the overall blow. Nevada cannot offer that relief because there is no state income tax base to decouple from. Instead, Nevada's tax exposure for cannabis businesses runs through entirely different channels: the 15% wholesale excise tax, the 10% retail excise tax, the Commerce Tax on gross revenue above $4 million, and the Modified Business Tax on wages. None of these Nevada-specific taxes interact with or offset federal 280E liability in any way, so operators need to budget for both burdens independently.
Building a Defensible COGS Methodology
The core of legitimate 280E tax planning is a properly documented cost of goods sold methodology under Sections 471 and 263A. For a cultivator, direct costs like seeds, clones, nutrients, and direct cultivation labor generally qualify as COGS, along with an allocable share of facility costs like utilities and rent tied to cultivation and processing space. For a retailer, COGS is generally limited to the invoice cost of inventory purchased for resale plus certain acquisition and transportation costs, since Section 263A's more expansive inclusion rules apply differently to resellers than producers.
- Cultivators/producers: direct materials, direct labor, and an allocable share of facility overhead under Section 263A
- Retailers: purchase cost of inventory plus certain acquisition-related costs, generally not full 263A overhead absorption
- Time studies or square-footage allocations to support labor and facility cost splits between COGS and SG&A
Common Mistakes That Draw IRS Attention
The most frequent 280E error is overstating COGS by including selling and administrative costs that belong on the disallowed side of the line, such as marketing salaries, security for retail floor operations, or general management compensation not tied to production. The opposite mistake, understating COGS out of excessive caution, is less common but still costly, since it means paying more federal tax than the law actually requires.
Another recurring problem is inconsistency year over year: a business that changes its cost allocation methodology without a documented business reason invites exactly the kind of scrutiny that leads to a full examination. Nevada operators who have gone through a license expansion, added a new facility, or shifted from vertically integrated operations to separate entities need to revisit and re-document their COGS methodology at each transition point.
Entity Structure Considerations
Some multi-license Nevada groups separate cultivation, production, and retail into distinct entities partly to isolate COGS calculations more cleanly at each stage of the supply chain, since each entity's 280E exposure is calculated independently based on its own activity. This structure adds complexity to intercompany pricing and wholesale excise tax treatment, so it should be implemented with both tax and compliance counsel involved, not accounting alone.
Preparing for an IRS Examination
Given how aggressively 280E has been enforced against cannabis businesses nationally, Nevada operators should assume any federal return claiming significant COGS will eventually receive scrutiny. The best defense is documentation prepared contemporaneously, not reconstructed after an audit notice arrives: written cost allocation policies, supporting schedules tying COGS categories back to the general ledger, and consistent treatment across tax years. Our audit-representation service and 280e-tax-planning engagements are built specifically around this documentation standard.
