Cannabis Business Tax Guide: Section 280E and State Rules

Operating a legal cannabis business in the United States means navigating one of the most punitive tax environments in any industry. While cannabis is legal for medical or recreational use in the majority of states, it remains a Schedule I controlled substance under federal law. That single fact creates a tax structure that can push effective tax rates above 70% for cannabis businesses — rates that would be unthinkable in any other legal industry.

Data Notice: Tax figures and thresholds related to cannabis business tax guide cited in this article are projected 2026 values based on IRS guidance and current legislation. Tax law is subject to change. Verify all figures with IRS.gov or a licensed tax professional before making decisions.

The root cause is Internal Revenue Code Section 280E, a provision written in 1982 to prevent drug dealers from deducting business expenses. Four decades later, it applies with full force to state-licensed dispensaries, cultivators, and manufacturers operating legally under state law. This guide covers how Section 280E works, what deductions are and are not available, state tax complications, accounting strategies, and the banking challenges that compound every tax obligation.

What Is Section 280E?

Section 280E of the Internal Revenue Code states:

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.

In plain terms: if your business traffics in a Schedule I or Schedule II controlled substance, you cannot deduct ordinary business expenses against your income. Cannabis (marijuana) is currently Schedule I.

What This Means in Practice

A normal business earning $1,000,000 in gross revenue with $600,000 in operating expenses would pay federal income tax on $400,000 in taxable income. A cannabis business earning the same $1,000,000 with the same $600,000 in operating expenses pays federal income tax on a much larger amount because most of those operating expenses are non-deductible.

The one exception: cost of goods sold (COGS). The IRS and Tax Court have consistently held that COGS is not a “deduction” — it is a calculation used to determine gross income. Cannabis businesses can subtract COGS from gross revenue. Everything else — rent, utilities, payroll, marketing, insurance, professional fees, equipment — is non-deductible.

What Qualifies as Cost of Goods Sold

COGS is the only offset available to cannabis businesses under Section 280E. For cultivators and manufacturers, this includes:

Included in COGS	Not Included (Non-Deductible)
Raw materials (seeds, clones, soil, nutrients)	Rent for retail or office space
Direct labor for cultivation/production	Sales staff salaries
Depreciation of production equipment	Marketing and advertising
Utilities for grow facilities (allocated to production)	Legal and accounting fees
Packaging materials (production stage)	Insurance premiums
Quality testing (production stage)	Office supplies and equipment
Freight-in on production materials	Vehicle expenses

Cultivators vs. Retailers

The COGS calculation varies dramatically by business type:

Cultivators and manufacturers can include substantial costs in COGS because they produce the product. Their direct labor, facility costs (allocated to production), and material costs all qualify. This makes the 280E burden less severe for vertically integrated operations.

Retailers (dispensaries) have a much smaller COGS. Their cost of goods sold is essentially the purchase price of inventory from wholesalers plus freight. All other operating costs — the storefront lease, budtenders’ wages, security, point-of-sale systems — are non-deductible.

This disparity means standalone dispensaries face the highest effective tax rates in the cannabis industry.

Effective Tax Rate Examples

The impact of Section 280E is dramatic when compared to a normal business. All figures are approximate.

Example: Cannabis Dispensary (Retail Only)

Line Item	Cannabis Business	Normal Business
Gross revenue	~$2,000,000	~$2,000,000
Cost of goods sold	~$1,000,000	~$1,000,000
Gross profit	~$1,000,000	~$1,000,000
Operating expenses	~$700,000	~$700,000
Taxable income (280E)	~$1,000,000	~$300,000
Federal tax (~21% C-corp)	~$210,000	~$63,000
Effective tax rate on net income	~70%	~21%

The cannabis dispensary pays approximately ~$210,000 in federal tax on ~$300,000 of actual economic profit — an effective rate of ~70%. The normal business pays ~$63,000 on the same profit.

Example: Cannabis Cultivator

Line Item	Amount
Gross revenue	~$3,000,000
COGS (includes direct labor, facility, materials)	~$2,100,000
Gross profit	~$900,000
Operating expenses (non-deductible)	~$400,000
Taxable income (280E)	~$900,000
Federal tax (~21% C-corp)	~$189,000
Actual net income	~$500,000
Effective tax rate on net income	~37.8%

Cultivators fare better because a larger percentage of their costs qualify as COGS, but the rate is still elevated compared to normal businesses.

Accounting Strategies Within 280E

Cannabis businesses use several legal strategies to minimize the impact of Section 280E. All require careful documentation and professional guidance.

Maximize COGS Allocation

The most important strategy is allocating every legitimate cost to COGS. Under IRS Section 471 and the uniform capitalization rules (Section 263A), producers can capitalize indirect costs into inventory. This means:

Facility costs for cultivation areas (rent, utilities, maintenance) can be allocated to COGS based on square footage used for production
Quality control labor directly tied to production qualifies
Depreciation on production equipment qualifies
Supervisory labor for production staff may qualify under Section 263A

The allocation must be reasonable, documented, and consistent year over year. Aggressive allocations invite IRS scrutiny.

Separate Business Lines

Some cannabis companies operate non-cannabis business lines (consulting, branded merchandise, event hosting, wellness services) through the same or related entities. Income from non-cannabis activities is not subject to Section 280E, and the expenses of those activities are fully deductible.

Critical requirement: The non-cannabis business must be genuinely separate, with distinct revenue streams, separate accounting, and legitimate independent operations. Setting up a sham non-cannabis business solely to deduct expenses has been rejected by the Tax Court repeatedly.

Entity Structure Considerations

The choice between C-corporation, S-corporation, partnership, and sole proprietorship affects how Section 280E impacts the business and its owners.

C-corporations pay a flat ~21% federal rate on taxable income. The 280E-inflated taxable income is taxed at this rate.
S-corporations and partnerships pass income through to individual owners, where it is taxed at the owner’s marginal tax bracket — potentially up to 37%.
Sole proprietorships face the same pass-through treatment plus self-employment tax on the non-deductible income.

Many cannabis operators choose C-corporation status because the flat 21% rate on 280E-inflated income produces a lower effective rate than pass-through taxation at higher marginal rates.

State Tax Differences

State tax treatment of cannabis businesses varies dramatically.

States That Conform to 280E

Most states use federal taxable income as the starting point for state income tax. In these states, Section 280E’s denial of deductions carries through to the state return, doubling the penalty.

States That Decouple from 280E

Several states have enacted legislation specifically allowing cannabis businesses to deduct expenses for state tax purposes even though they cannot do so federally:

State	280E Status	Notes
California	Decoupled — allows deductions	AB 37 (effective 2022)
Colorado	Partially decoupled	Allows deductions for state-licensed operations
Illinois	Decoupled	Full deductions for state income tax
Oregon	Decoupled	No state 280E
New York	Decoupled	Recent legislation
Michigan	Decoupled	Allows normal business deductions
Massachusetts	Conforms to 280E	Deductions denied at state level
Arizona	Conforms to 280E	Deductions denied at state level
Nevada	No state income tax	N/A
Washington	No state income tax	B&O tax still applies

State Cannabis Excise Taxes

Beyond income taxes, most states impose additional cannabis-specific excise taxes:

State	Excise Tax Rate	Applied To
California	15% excise + local	Retail price
Colorado	15% excise + 15% retail	Wholesale and retail
Illinois	7%–25% (THC-based) + local	Retail price
Oregon	17%	Retail price
Washington	37%	Retail price
Michigan	10%	Retail price

These excise taxes are on top of federal income tax (with 280E) and state income tax. Total effective tax rates for cannabis businesses can exceed 80% in high-tax states.

Cash Business Complications

Because cannabis remains federally illegal, most major banks and credit unions will not serve cannabis businesses. This forces many operators to function as cash-only businesses, creating cascading tax problems:

No bank accounts — Cash revenue is harder to document, making IRS audits more challenging
Higher audit risk — Cash-intensive businesses are statistically more likely to be audited
Payroll complications — Paying employees in cash creates additional tax reporting burden
Tax payment difficulties — The IRS accepts cash payments but requires appointments at TACs for amounts above certain thresholds
Security costs — Storing and transporting large amounts of cash requires armored transport and on-site security, none of which is deductible

The SAFE Banking Act

The Secure and Fair Enforcement (SAFE) Banking Act, which would protect financial institutions from federal penalties for serving state-legal cannabis businesses, has been introduced in Congress multiple times but has not been enacted as of early 2026. Some credit unions and state-chartered banks serve cannabis businesses in certain states, but access remains limited and fees are substantially higher than normal business banking.

IRS Enforcement and Audit Risk

Cannabis businesses face elevated audit risk for several reasons:

Cash-intensive operations trigger IRS scrutiny
Section 280E disputes over COGS allocation are common
High dollar amounts relative to reported taxable income draw attention
State licensing data is accessible to the IRS for cross-referencing

Common IRS challenges in cannabis audits:

Reclassifying COGS as operating expenses — The IRS may argue that costs a business included in COGS are actually operating expenses, increasing taxable income
Challenging allocation percentages — If 60% of facility costs are allocated to production, the IRS may argue the correct allocation is lower
Disallowing deductions entirely — Any deduction beyond COGS on a cannabis return will be denied

Maintain meticulous records. Document every cost allocation with square footage measurements, time studies, and inventory tracking. Consider filing with the guidance of a CPA experienced in cannabis tax law. Understanding filing deadlines and penalties for non-filing is critical for businesses with large tax obligations.

Will Section 280E Change?

Several paths could eliminate or reduce Section 280E’s impact on cannabis businesses:

Federal Rescheduling or Descheduling

If cannabis is reclassified from Schedule I to a lower schedule or removed from the Controlled Substances Act entirely, Section 280E would no longer apply. Rescheduling discussions have been ongoing but no final action has been taken.

Legislative Repeal

Congress could repeal Section 280E specifically for state-legal cannabis businesses without changing the drug’s scheduling. Bills have been introduced but none have passed.

Tax Court Challenges

Cannabis businesses continue to challenge Section 280E in Tax Court, but the courts have consistently upheld the provision as written. The most notable case, Californians Helping to Alleviate Medical Problems (CHAMP) v. Commissioner, established the COGS exception but confirmed the non-deductibility of operating expenses.

For now, cannabis businesses must operate within Section 280E as it stands. Monitor legislative developments through the One Big Beautiful Bill and related proposals.

Frequently Asked Questions

Can I deduct employee wages for dispensary workers?

No. Wages for retail employees (budtenders, cashiers, security at retail locations) are operating expenses and non-deductible under Section 280E. Only wages for employees directly involved in cultivation or manufacturing qualify as COGS.

Is Section 280E being challenged in court?

Cannabis businesses regularly challenge 280E in Tax Court. Courts have consistently upheld the provision. The COGS exception is the only relief the courts have recognized. Track your obligations using your IRS online account.

Do hemp and CBD businesses face 280E?

No. Hemp was removed from the Controlled Substances Act by the 2018 Farm Bill. Businesses dealing exclusively in hemp-derived products (including CBD with less than 0.3% THC) are not subject to Section 280E and can deduct all ordinary business expenses.

Should my cannabis business be a C-corp or S-corp?

This depends on your specific situation, but many cannabis businesses choose C-corporation status because the flat 21% rate produces a lower effective tax than pass-through taxation at higher individual rates on 280E-inflated income. Consult a tax professional experienced in cannabis.

Can I use a normal tax software to file cannabis business taxes?

Standard business tax software (TurboTax Business, TaxAct Business) can technically prepare the return, but the COGS allocation and 280E compliance require expertise that software alone does not provide. Most cannabis businesses work with specialized CPAs. Review tax software options for supplementary tools.

What records should I keep for a cannabis business?

Everything. Square footage measurements, production logs, employee time records by activity, purchase invoices with delivery dates, inventory counts, security footage logs, and any documentation supporting your COGS allocations. Keep records for at least seven years — longer than the standard three years, given the elevated audit risk.

Key Takeaways

Section 280E denies all business deductions except cost of goods sold (COGS) for cannabis businesses because marijuana remains a federal Schedule I substance
Standalone dispensaries face the highest effective tax rates (potentially exceeding 70%) because their COGS is limited to inventory purchase costs
Cultivators and manufacturers fare better because direct production costs qualify as COGS
Several states (California, Colorado, Illinois, Oregon, and others) have decoupled from Section 280E for state income tax purposes
Cash-only operations caused by banking restrictions compound tax compliance challenges
C-corporation structure often produces lower effective tax rates than pass-through entities for cannabis businesses

Next Steps

Understand federal tax brackets and how they apply to cannabis business pass-through income
Review filing deadlines to avoid costly late-filing penalties on large tax obligations
Learn about penalties for failure to file vs. failure to pay — particularly important for businesses with high tax bills
Monitor legislative changes in the One Big Beautiful Bill for potential 280E reform

Tax information is for educational purposes only and does not constitute tax or legal advice. Cannabis tax law is complex and varies by state. Consult a licensed tax professional experienced in cannabis taxation for your specific situation. This article does not address the legality of cannabis under federal or state law.