Section 280E Cannabis Tax Guide 2026: How COGS and Section 471 Cut the Damage

Why does my cannabis business owe so much tax on so little profit?

Because of one sentence in the Internal Revenue Code. Section 280E says that 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 listed on federal Schedule I or II. Cannabis is still Schedule I. State licensing makes the business legal at home, and it changes nothing at the IRS.

My read is that the whole game comes down to one question: which dollars can you honestly route through cost of goods sold? Rent, payroll for the sales floor, advertising, and insurance fall into the nondeductible pile. A dollar that belongs in inventory cost survives. This guide walks through how the rule works, where COGS stops, how states differ, and what rescheduling would and would not fix. It is a conceptual map for owners, investors, and advisors, not a filing manual.

How does Section 280E work in practice?

The statute is short and the courts have been blunt. Decisions from the Tax Court and the appellate courts, including the Alpenglow Botanicals and Alterman line of cases, keep returning to the same point: legality under state law is irrelevant to the federal deduction. The test is the federal schedule of the substance, not the virtue of the business.

Step	Ordinary retailer	Cannabis retailer under Section 280E
Revenue	Starting point	Starting point
Cost of goods sold	Subtracted	Subtracted, within allowed scope
Gross profit	Revenue minus COGS	Revenue minus COGS
Rent, payroll, marketing, insurance, fees	Deducted	Generally disallowed
Taxable base	Net profit	Close to gross profit

A purely hypothetical example shows the scale. Say a shop has revenue of 100, COGS of 50, and operating expenses of 40. A normal business is taxed on 10. A business under Section 280E is taxed on something near 50. At a flat 21 percent federal corporate rate, that is roughly 2.1 against roughly 10.5, five times as much. The numbers are illustrative only; real results depend on entity type, state taxes, and how each cost is classified.

Thin margins make this worse. In a market where price compression eats the net, the tax bill tracks gross profit anyway. Plenty of owners learn this in the month the payment is due and the cash is not there.

What costs can go into COGS?

Courts treat COGS as an offset to gross receipts, not a deduction, so Section 280E does not block it. That makes inventory costing the center of any legitimate strategy. What qualifies depends on what your business does.

Business type	Costs that can often be included	Costs that are hard to include
Retailer (resale)	Purchase price, inbound freight	Budtender payroll, store rent, marketing
Cultivator	Seeds and clones, nutrients, direct production labor, some facility costs tied to growing	Sales staff, branding, general administration
Manufacturer or processor	Raw material, direct processing labor, packaging, production share of equipment depreciation	Corporate overhead, promotion, retail activity

The reseller row is the painful one. In the Patients Mutual (Harborside) decision, the Tax Court limited a dispensary to inventory costs under Section 471 and rejected the broader cost-allocation rules producers may use. Retailers who also grow or manufacture, as a real operating fact and not a tax label, may be able to capitalize more. A shell arrangement built only for tax will not survive a skeptical examiner.

If I were advising a dispensary, I would ask three things before any structure talk. Are acquisition costs and freight documented per batch? Is shrink, waste, and destruction recorded? Does the point-of-sale and state tracking data reconcile to the general ledger? Defensible basics beat clever structures every time.

What does Section 471 require from you?

Section 471 is the general rule for measuring inventory cost. For cannabis operators it matters more than usual because it is the only large legitimate cost layer left under Section 280E. Examiners tend to ask for the following.

• Quantity tracking. Receipts, production, sales, destruction, and loss by batch or SKU, matched to the state seed-to-sale system.
• Allocation support. If you assign indirect costs to inventory, show the basis: square footage, labor hours, machine time, with the math preserved.
• Physical counts. Regular counts and documented adjustments. Persistent unexplained variances put your whole COGS number in doubt.
• Consistency. Do not switch costing methods casually. A change in accounting method has a formal process.

Smaller taxpayers can sometimes simplify inventory treatment under certain thresholds, but leaning on that aggressively in this industry invites questions. Confirm the current rules and cases with your CPA first.

Can I split a cannabis business from a second business to keep deductions?

Possibly, but the bar is high. In the older CHAMP case, the Tax Court allowed expenses for a distinct caregiving and counseling operation that was separate from the cannabis sales. In later cases the courts disallowed deductions where the activities were really one enterprise.

Factor	Helps your case	Hurts your case
Entities and bank accounts	Separate entities, separate accounts	Everything paid from one account
Space and staff	Distinct premises and employees	Same people doing both jobs
Income	Non-cannabis line earns from its own customers	Service exists to feed cannabis sales
Allocation	Documented rules (time, area) set in advance	Percentages invented after the fact

A common trap is the related real estate entity that charges the dispensary rent and deducts its own costs. If the landlord entity looks like an extension of the operation, expect pushback. Build separation at the start. Recreating it after an audit notice carries almost no weight.

Do state taxes follow Section 280E?

Federal and state income taxes are separate, but many states begin with federal taxable income. In those states the 280E result flows through. Others have enacted decoupling rules that let cannabis operators deduct ordinary expenses on the state return.

State approach	Effect on state income tax	Practical note
Conforms to federal income	280E result carries into the state return	Double hit on a gross-profit base
Decoupled	Ordinary expenses deductible for state purposes	Track federal-to-state adjustments
No broad income tax	No state income tax drag	Check gross receipts, excise, and sales taxes

California, Colorado, and Oregon are often cited as having adopted some form of decoupling, but details and effective years change, so read the current guidance from each state’s revenue agency. Separate from income tax, most legal states layer on excise taxes, local taxes, or gross-receipts charges, so total burden differs sharply from one state to the next.

Mismatches between your state license filings, sales tax returns, and income tax returns are an audit trigger. One mismatched number can open all three files.

Will rescheduling end Section 280E?

By its words, Section 280E applies to Schedule I and II substances. If cannabis lands on Schedule III, the statutory hook goes away. That is why rescheduling is the biggest tax story in the industry.

It is not that clean in practice. Several things need checking before anyone builds a budget around it.

• Where the process stands. Proposals, hearings, and litigation have moved the timeline repeatedly. Read the DEA and Federal Register notices yourself.
• Effective date. Whether relief starts with the next tax year, mid-year, or in some other way is its own question.
• Refunds for prior years. Whether past 280E tax could ever be recovered is legally uncertain. Do not book it.
• Everything else stays. Rescheduling is not federal legalization. Banking access, interstate commerce, and FDA rules remain separate problems.

My view: do not plan around rescheduling. Do clean up your books now, because a defensible inventory record makes the transition easier whenever it comes. Banking access is the sister problem for many operators, and regional banks have taken very different stances; the FNB Corp stock outlook and the Cincinnati Financial outlook show how regulated financial firms think about regulatory exposure.

What are the most common Section 280E mistakes?

These are the patterns that keep showing up.

1. Filing like an ordinary business. Full deductions for rent and payroll get disallowed, with tax, penalties, and interest following.
2. Stuffing COGS without support. Calling sales payroll or advertising inventory-related is especially risky for resellers.
3. Books that do not match the state tracking system. If unit counts disagree, every cost figure loses credibility.
4. Missing cash reporting duties. High cash volume makes obligations like Form 8300 easy to overlook.
5. Under-paying estimated tax. Tax runs off gross profit, but estimates are made off net profit, and the shortfall lands in April.
6. Building structure after the audit. Entity separation has to be real and prior.
7. Taking aggressive positions with no paper trail. Unsupported deductions can bring accuracy-related penalties.

Number five hurts cash-strapped owners most. Setting estimates conservatively removes a large share of year-end crises.

What is a sensible order of operations?

Step	Action	Note
1	Hire a CPA experienced with cannabis	Not a generalist
2	Classify your activity: retail, cultivation, manufacturing	Determines COGS scope
3	Audit inventory and cost systems	Reconcile to state tracking
4	Review entity structure	Separation must be factual and prospective
5	Confirm state decoupling status	Manage federal-to-state adjustments
6	Plan estimates and cash	Model on gross profit
7	Watch rescheduling news	No assumed refunds

If you invest in public markets alongside your business, the basics of how gains are taxed are worth knowing; the stock capital gains tax guide covers that side. And for owners thinking about turning business profits into steady retirement income, annuity laddering is one structure to compare. For another regulated-industry case study, see the Loews stock outlook.

Bottom line

Section 280E is a rule you calculate carefully, not one you outsmart. Rescheduling may ease the burden, but delaying cleanup to wait for it is a gamble. Make inventory records defensible, work with a CPA who knows this industry, and set estimated taxes against gross profit with room to spare. Those three habits cost the least and protect the most.

This article is general information, not tax, legal, or accounting advice. Tax law, case law, state rules, and the rescheduling process change often. Before filing or restructuring, consult a CPA or tax attorney experienced with cannabis businesses.