Hiring a cannabis CPA is one of the highest-stakes financial decisions a licensed operator will make, because the wrong fit can turn an avoidable tax position into a six-figure liability. A cannabis CPA who understands Section 280E, audit-readiness, multi-state operations, and the banking constraints unique to this industry protects margin in ways a generalist accountant cannot. This guide gives you seven specific questions to ask before you sign an engagement letter, so you can separate genuine specialists from firms that simply added “cannabis” to a service page.
Quick answer: The right cannabis CPA should prove hands-on Section 280E experience, allocate cost of goods sold defensibly, keep your books audit-ready year-round, handle multi-state filing complexity, and work fluently around cash and banking limits. Ask each candidate to show real client outcomes and a documented methodology, not general familiarity. If a firm cannot explain how it calculates COGS or how it would defend that calculation under IRS examination, keep looking.
Why Cannabis Demands a Specialist, Not a Generalist
Cannabis is one of the few industries where federal tax law actively penalizes ordinary business operations. Under Internal Revenue Code Section 280E, businesses that traffic in a Schedule I or Schedule II controlled substance cannot deduct ordinary business expenses such as rent, payroll, marketing, and utilities, even when those costs are legitimate and the business is fully licensed under state law. The IRS marijuana industry guidance confirms that businesses trafficking marijuana in contravention of federal or state law are subject to the limitations of Section 280E.
The single relief valve is cost of goods sold. Because the Sixteenth Amendment permits taxing income rather than gross receipts, cannabis businesses may reduce gross receipts by COGS even though most other deductions are disallowed. The line between a capitalizable cost of goods sold and a non-deductible operating expense is where a skilled cannabis CPA earns the engagement, and where an inexperienced one can expose you to a damaging assessment.
That single distinction drives most of the tax outcome for a licensed operator. A few percentage points of cost reclassified from COGS into a disallowed operating expense can swing an effective tax rate significantly, because the disallowed dollars are taxed at full rates with no offset. A specialist builds the chart of accounts and the inventory records so the defensible costs land inside COGS from the start, rather than trying to reconstruct that support after a notice arrives.
The regulatory picture is also shifting. In April 2026, the Department of Justice rescheduled FDA-approved cannabis products and state-licensed medical marijuana from Schedule I to Schedule III, which removes those specific categories from Section 280E. Adult-use, or recreational, cannabis remains on Schedule I, so adult-use operators continue to face the full weight of 280E. The AICPA has urged the IRS to issue transition guidance addressing how businesses move out of 280E, which means your CPA needs to track an evolving rule set, not a static one.
This split treatment creates planning questions that did not exist a year ago. An operator with both medical and adult-use lines now has activity on two sides of a tax line, and the allocation of shared costs between those lines becomes a live issue. A CPA who has thought through the transition can position your records and entity structure for the rules as they stand and for further change if broader rescheduling follows.
The 7 Questions to Ask a Cannabis CPA
1. How many cannabis clients do you currently serve, and in what license types?
Depth matters more than a logo on a website. Ask how many cultivators, manufacturers, distributors, and dispensaries the firm serves today, because each license type carries a different COGS profile. A cultivator capitalizes a wide range of direct and indirect production costs, while a retailer has far fewer costs that legitimately fall inside COGS under 280E. A firm that works across the supply chain will recognize these distinctions immediately.
Ask for references from clients in your specific license category and your state. If the firm hesitates to connect you with an existing client in the same vertical, treat that as a signal about the real depth of their bench. Specifics, such as how many returns the firm filed under 280E last season, tell you far more than a general claim of cannabis experience.
2. How do you calculate and defend cost of goods sold under 280E?
This is the most important technical question you will ask. A qualified cannabis CPA should explain, in plain terms, how they allocate costs into COGS, which cost accounting method they apply, and how that approach holds up if the IRS challenges it. You want to hear a documented methodology tied to inventory and production records, not an estimate applied after the fact.
The answer should also reflect the difference between resellers and producers. Producers can capitalize more indirect costs into inventory than resellers can, and a CPA who blurs that distinction risks either overstating deductions or leaving legitimate cost recovery on the table. Pair this conversation with broader tax advisory services so the COGS strategy connects to your entity structure and long-term planning.
3. How do you keep my books audit-ready throughout the year?
Cannabis businesses face audit exposure from multiple directions: the IRS on 280E and COGS, state taxing authorities, and state cannabis regulators tracking seed-to-sale data. A strong cannabis CPA treats audit-readiness as a continuous discipline rather than a year-end cleanup. Ask how they reconcile point-of-sale data, seed-to-sale tracking systems, and the general ledger on a recurring basis.
You also want documentation habits that survive scrutiny. The CPA should describe how source documents, inventory counts, and cost allocations are retained and tied together, so that if an examiner arrives, the support already exists. A firm that only assembles records when a notice lands is selling you risk, not protection.
4. Do you handle multi-state operations and the differences between states?
Cannabis tax rules diverge sharply by state. Some states have decoupled from federal 280E and allow operators to deduct expenses on the state return that are disallowed federally, while others conform to the federal treatment. If you operate or plan to expand across state lines, your CPA must understand each state’s conformity rules, excise taxes, and licensing-driven filing obligations.
Ask how the firm tracks differing state treatments and coordinates filings across jurisdictions. A specialist in multi-state cannabis work will be able to name specific states where decoupling changes the math, and will plan entity structure with future expansion in mind rather than reacting state by state.
5. How do you work within cannabis banking and cash constraints?
Many cannabis businesses still operate with limited banking access because federally regulated banks remain cautious about serving the industry. That reality creates real accounting challenges: large cash volumes, heightened internal-control needs, and demanding documentation to satisfy both regulators and any financial institution willing to work with you. Your CPA should have practical systems for handling cash-heavy operations without inviting fraud or reconciliation gaps.
Ask how the firm helps clients maintain clean records when cash is the dominant medium, and how they support banking relationships and any required reporting. Experience here separates firms that merely file returns from those that strengthen the financial controls your business depends on.
6. Who actually does my work, and what are their credentials?
Confirm that a licensed CPA, not solely junior staff or an unlicensed bookkeeper, oversees your 280E positions and tax filings. Cannabis accounting blends bookkeeping, cost accounting, payroll, and tax strategy, and the person signing off on your returns should hold the credentials and the cannabis-specific experience to stand behind that work. Ask who your day-to-day contact will be and who reviews the final product.
You should also ask about continuing education in cannabis taxation. Given the rescheduling activity now underway, a CPA who invests in staying current, through resources such as AICPA cannabis programming, is far better positioned to guide you through the transition than one relying on outdated assumptions.
7. How do you price your services, and what is included?
Cannabis engagements are more involved than standard small-business accounting, so expect pricing to reflect that complexity. Ask for a clear scope: what monthly bookkeeping, COGS analysis, tax preparation, planning, and audit support are included, and what falls outside the engagement. Transparency here prevents disputes later and signals a firm that has done this work before.
Be cautious of pricing that seems far below market, because it often means the firm underestimates the cannabis-specific labor involved or plans to staff the work too thinly. The cost of a qualified cannabis CPA is small relative to the tax exposure they help you manage.
How to Compare Your Final Candidates
Once you have answers from two or three firms, weigh them on evidence rather than confidence. The strongest candidate will show client outcomes, a written COGS methodology, and a plan for both current 280E compliance and the rescheduling transition. Pease Bell CPAs supports operators across the supply chain through dedicated cannabis industry services, and reviewing a firm’s depth in your specific license type and states should anchor your decision.
A simple scorecard helps you stay objective. Rate each firm on 280E methodology, audit-readiness process, multi-state capability, banking and cash controls, credentials of the people doing the work, and price transparency, then compare the totals side by side. The firm that scores well on methodology and people, rather than the one that simply sounds the most confident on a sales call, is usually the safer long-term choice.
Finally, choose a CPA you can build a multi-year relationship with. Cannabis tax law is in motion, your operations will likely expand, and continuity with an advisor who already knows your records and cost structure is worth more than a marginally lower fee. The right partner reduces both your tax burden and your audit risk while the rules keep changing.
Frequently Asked Questions
What is Section 280E and why does it matter for cannabis businesses?
Section 280E of the Internal Revenue Code disallows deductions and credits for businesses trafficking in Schedule I or Schedule II controlled substances. For cannabis operators, this means ordinary expenses like rent, payroll, and marketing are not deductible federally, though cost of goods sold can still reduce gross receipts. It is the central reason cannabis requires a specialist CPA.
Does the 2026 rescheduling mean 280E no longer applies to my cannabis business?
It depends on your license type. The April 2026 rescheduling moved FDA-approved products and state-licensed medical marijuana to Schedule III, removing those categories from 280E. Adult-use recreational cannabis remains on Schedule I and is still fully subject to 280E, so most recreational operators continue to face the same limits.
Can a cannabis business deduct any expenses on its tax return?
Federally, a cannabis business generally cannot deduct ordinary operating expenses, but it can offset gross receipts with cost of goods sold. Producers such as cultivators and manufacturers can capitalize more costs into COGS than retailers can. Some states have decoupled from 280E and allow additional deductions on the state return.
How do I verify a cannabis CPA’s experience before hiring?
Ask for the number of current cannabis clients by license type, request references in your vertical and state, and have the CPA walk you through their COGS methodology and how they would defend it under audit. A genuine specialist will answer with specifics and documentation rather than general familiarity.
