Does 280E Still Apply in 2026?
Short answer: assume yes for your current filing periods, and plan for the possibility that it will not apply the same way to every part of your business later. Section 280E disallows deductions and credits for a trade or business trafficking in a controlled substance listed in Schedule I or Schedule II of the Controlled Substances Act. That scheduling language is the hinge. Marijuana's placement is what makes the statute bite, and nothing about an Arizona license under the Arizona Medical Marijuana Act or Proposition 207 changes the federal analysis on its own.
The federal rescheduling process moves through administrative rulemaking and potential judicial review, and a taxpayer's position changes only when a final rule takes effect — prospectively, from that effective date. Until then, a return covering a period before the effective date is still a 280E return. We walk through that procedural sequence in more detail in the Arizona cannabis tax guide.
What is genuinely unsettled is the second-order question this guide exists to address: if federal treatment ever distinguishes qualifying medical cannabis activity from adult-use activity, how does a business that does both compute anything? That question does not have a published answer today. There is no Treasury regulation, revenue ruling or IRS notice setting out an approved method for splitting a mixed cannabis operation between a 280E-affected activity and a non-affected one. Any operator who is told otherwise is being sold certainty that does not exist.
So the practical posture for an Arizona operator in 2026 is not to wait, and not to assume relief. It is to make the books capable of answering the question either way — which is an accounting project, not a tax-law bet.
- 280E reaches trades or businesses trafficking in Schedule I or Schedule II substances
- Any change from rescheduling is prospective from a final rule's effective date, not retroactive
- No published federal methodology currently governs a medical versus adult-use split for 280E purposes
- Arizona state excise and transaction privilege tax obligations are unaffected by any of this
Medical vs. Adult-Use Cannabis: Why the Difference Matters for 280E
Arizona is one of the states where this distinction is not academic. The state runs a medical program under the Arizona Medical Marijuana Act alongside an adult-use market created by Proposition 207, and a large share of retail licensees serve both. The two channels already receive different state tax treatment: the 16% marijuana excise tax administered by the Arizona Department of Revenue applies to adult-use retail sales, and qualifying patient sales under the medical program are not subject to it.
That means most Arizona dual licensees are already segregating medical from adult-use somewhere — usually at the point of sale, because the excise calculation depends on it. What they generally have not done is carry that distinction all the way through the general ledger into cost, payroll, overhead and inventory. If federal treatment ever turns on the same distinction, a POS-level tag with no corresponding cost architecture behind it is not going to support a return position.
A single-channel operator has a simpler problem. A medical-only dispensary or an adult-use-only retailer is entirely inside one category, so whatever rule applies, applies to the whole business. The complexity lands squarely on the operator running both, and in Arizona that is the majority of the retail market.
None of this means a medical channel is deduction-eligible today. It means the accounting distinction is worth building now, because it is already required for state excise purposes and would be the foundation of any future federal position.
The Mixed-Use Cannabis Accounting Problem
Picture a Phoenix-area retailer with a Proposition 207 dual license: roughly seventy percent of revenue from adult-use customers, thirty percent from qualifying patients, one building, one staff roster, one inventory pool, one security contract and one management team. If those two revenue streams were ever treated differently under 280E, essentially every line below gross revenue becomes an allocation question.
Start with what is easy. Revenue segmentation is solved at the register — the transaction is already tagged medical or adult-use because the excise depends on it, and that tag should flow into separate revenue accounts rather than being reconstructed from a POS report at month end. Purchases of product destined for a specific channel can often be tracked directly. Some labor is genuinely dedicated: a patient-services role that verifies cards and nothing else is a direct medical cost.
Then the hard part. Rent covers a floor both channels walk on. The security contract covers one building. The general manager, the compliance lead, the accounting software subscription, the insurance policy, the utilities and the shared point-of-sale platform serve the whole business. Inventory frequently sits in one vault and moves to whichever customer buys it, which means the same unit could carry different tax significance depending on who walks in the door. Marketing may be channel-specific or not, depending on how it was bought.
The unresolved question is what basis a taxpayer may use to divide those shared pools, and whether a division is permitted at all in a given fact pattern. Revenue share, transaction count, unit volume, measured square footage and coded labor hours are all defensible-sounding drivers, and consumption-based drivers are how allocation is normally supported in tax accounting generally. But no federal authority currently blesses a specific method for this cannabis fact pattern, and we are not going to invent one. What we will say is that an operator whose system can produce each of those measures monthly, from source records, is in a far better position than one who cannot produce any of them.
The reconciliation layer matters as much as the split. Arizona operators already reconcile point-of-sale activity to seed-to-sale package movement and to deposits. Extending that discipline so the channel tag survives the reconciliation — POS mix ties to the revenue subledger, which ties to inventory depletion, which ties to cash — is what turns an allocation from an assertion into a supported figure.
- Segment revenue at the register and carry the tag into separate ledger accounts, not a spreadsheet
- Use departments, classes or locations so shared costs can be pooled and split consistently
- Distinguish direct costs, channel-specific costs and genuinely shared overhead in the account structure
- Preserve the medical/adult-use tag through POS, seed-to-sale and deposit reconciliations
- Document what you did and why, monthly, rather than reconstructing a method later
Talk to a Cannabis CPA Before the Guidance Lands
If your Arizona business runs medical, adult-use or both, the accounting treatment of shared expenses is likely to get harder, not easier, as federal guidance develops. The operators who will handle a change cleanly are the ones whose books already separate the channels. Our 280E tax compliance service engagement covers methodology design, cost segregation and documentation for Arizona licensees, and you can schedule a consultation to review your current structure.
Cannabis 280E Expense Allocation and Apportionment
Allocation is the accounting problem that a two-tier federal treatment would create, and it is worth understanding why it is hard before deciding how to prepare for it. Under current law the allocation question already exists in a different form: costs are sorted between inventoriable cost of goods sold and disallowed period expense. A medical versus adult-use split would add a second axis to the same exercise, so the same cost pool would need to be divided twice.
The expenses most likely to sit across both channels in an Arizona retail or vertically integrated operation are predictable: facility rent and common-area cost, payroll for staff who serve both customer types, management and executive compensation, the security contract and guard coverage required at licensed premises, utilities, point-of-sale and seed-to-sale software subscriptions, insurance, professional fees, and shared cultivation or processing overhead in a vertically integrated group.
For each of those, the questions are the same. What actually drives consumption of this cost? Can that driver be measured from a source record rather than estimated? Is the measurement produced routinely, or would it have to be reconstructed? Square footage taken from a floor plan, hours taken from a time system coded by function, transaction counts pulled from the POS, and unit volumes pulled from the seed-to-sale system are all measurable. A round percentage remembered at year end is not.
One caution we will repeat: an allocation method does not, by itself, make a cost deductible. Deductibility depends on the underlying law applied to the taxpayer's facts, and in this area part of that law is not yet written. What a good method does is make the number defensible if the law eventually permits the position, and make the return preparable either way. The costing discipline underneath all of it is the same work described in our cannabis accounting services and inventory accounting guide.
- Rent and common facility cost — measured square footage by function and channel where separable
- Payroll and management — time coded by activity, not an assumed percentage
- Security, utilities, insurance, software — consumption drivers documented per cost pool
- Professional services — engagement-level detail where the work is channel-specific
- Every pool needs a written basis, a source record and a monthly computation
Chart of Accounts After Schedule III
The most useful thing an Arizona operator can do in 2026 costs nothing in tax risk and improves the books regardless of what happens federally: restructure the chart of accounts so the medical and adult-use activities are visible without manual work.
In practice that means separate revenue accounts by channel and by location, a discount and returns structure that mirrors the revenue split, inventory tracked so channel-specific purchases and depletions can be identified, cost of goods sold accounts parallel to the revenue accounts, and payroll broken out between direct production labor, direct channel labor and shared administrative labor. Shared overhead lives in clearly named pool accounts rather than being pre-split at entry, because the split should be a documented, reviewable computation instead of a coding habit.
Departments, classes or locations in the accounting system carry the dimension that accounts alone cannot. A dual-licensed operator with two stores and a cultivation site needs to see any cost by entity, by site and by channel. Reconciliations then have to preserve those dimensions: a POS-to-ledger reconciliation that collapses the channel tag defeats the whole structure.
This is ordinary good accounting for an Arizona dual licensee even if federal treatment never changes, because the 16% excise already depends on the split. Our cannabis bookkeeping and dispensary accounting engagements build exactly this structure, and the account architecture is documented in the Arizona cannabis accounting guide.
- Revenue, discounts, returns and COGS mirrored by channel and location
- Payroll split between direct production, direct channel and shared administrative labor
- Shared overhead held in named pool accounts, split by documented computation
- Department, class or location tracking carried through every reconciliation
Inventory and COGS Still Matter
Whatever happens with scheduling, inventory accounting remains the backbone of a cannabis tax return. Under current law it is the only relief the statute leaves intact, because cost of goods sold reduces gross receipts before gross income is computed and 280E cannot reach it. If federal treatment loosens, inventory accounting stops being a defensive necessity and becomes what it is in every other industry: the thing that determines when cost hits the income statement.
The reseller and producer distinction does not go away either. An Arizona dispensary capitalizes invoice cost, inbound freight and the narrow band of acquisition cost the reseller rules permit. A cultivator or manufacturer capitalizes direct materials, direct labor and allocable indirect production cost, with the allocation supported by measurement. Those rules govern timing regardless of what 280E does.
The failure mode we see most often has nothing to do with tax law: physical counts that do not tie to the seed-to-sale system, landed cost that was never captured, waste and shrink that were never recorded, and period-end valuations built from a formula rather than a count. Any future position an operator wants to take starts from an inventory subledger that is actually right.
Documentation and Audit Defense
Transitions attract scrutiny. A period in which taxpayers begin reporting differently, on facts that vary business by business, with guidance that is still developing, is exactly the environment in which examination activity concentrates. Clean books become more important during that window, not less.
The file worth maintaining is contemporaneous and boring: monthly POS reports showing the medical and adult-use mix by location, seed-to-sale reconciliations tying package movement to sales and to inventory, payroll registers with hours coded by function, vendor invoices and manifests filed against the period they support, allocation workpapers showing each shared pool, its driver, the measurement source and the computation, physical inventory counts and valuation schedules, and a written accounting policy memorandum explaining the methodology in place and when it was adopted.
The reason for contemporaneous records is simple. A methodology documented in the year it was applied describes what the business actually did. The same methodology written up two years later, after a notice arrives, is a reconstruction — and reconstructions carry far less weight. Our audit preparation guide covers how we assemble and maintain that file year by year.
- Monthly channel-mix reports from the point of sale, by location
- Seed-to-sale reconciliations that preserve the medical/adult-use tag
- Payroll records with hours coded by function and channel
- Allocation workpapers: pool, driver, source, computation, review
- A dated written accounting policy describing the method in force
What Arizona Cannabis Businesses Should Do Now
Arizona's market structure makes this a more immediate exercise here than in a single-program state. Retail licensees under Proposition 207 commonly hold dual approval and serve both qualifying patients registered through the Arizona Department of Health Services and adult-use customers from the same counter, and the state's excise treatment already differs between the two. Vertically integrated groups add cultivation and manufacturing sites whose output feeds both channels from a shared production cost pool.
For dispensaries and retailers, the priority is the register and the ledger: confirm the channel tag is captured on every transaction, that it lands in separate revenue and cost of goods sold accounts, and that the monthly mix report reconciles to the general ledger and to the excise returns filed with the Arizona Department of Revenue. Detail specific to the retail floor is covered on our Arizona dispensary accounting page.
For cultivators, the priority is batch costing that can survive being asked which channel consumed the output. Direct materials, cultivation labor, metered or allocated grow-room utilities and equipment depreciation should accumulate by harvest batch and release to cost of goods sold as product sells, with quantities reconciled to the state tracking system. For manufacturers and processors, the same discipline applies through each conversion stage, with yield and loss recorded rather than inferred.
For every operator type, three tasks are worth doing this year regardless of federal developments: restructure the chart of accounts so channels and shared pools are visible, write down the allocation methodology and the basis for each pool, and tighten the reconciliation chain from point of sale to seed-to-sale to bank. None of it depends on a rule that has not been issued, and all of it improves the current-law position. Operators in Phoenix, Tucson, Scottsdale and across the state can start with a review of the existing books.
One thing not to do: change a filed position, stop accruing for federal tax, or spend a projected refund on the strength of expected guidance. Rescheduling would be prospective, and the treatment of mixed operations is unresolved. Cash planning should assume the current rule until a final rule with an effective date says otherwise.
- Confirm medical and adult-use tagging at the point of sale and in the ledger
- Reconcile the monthly channel mix to the excise returns filed with ADOR
- Build or refresh batch costing for cultivation and conversion costing for manufacturing
- Write the allocation methodology down now, while the facts are current
- Keep accruing and reserving for federal tax under current law
Questions Cannabis Operators Should Ask Their CPA
If you are not sure where your business stands, these are the questions that surface the answer quickly. A cannabis-focused accountant should be able to respond to each one with a record, not an opinion.
- Does 280E still apply to all of our activity for the periods we are filing?
- Can our books distinguish medical from adult-use activity without manual rework?
- How are shared expenses currently tracked, and on what basis are they split?
- Is payroll allocated by actual coded activity, or by an assumed percentage?
- Can inventory and cost of goods sold be substantiated from source records?
- Do our point-of-sale, seed-to-sale and accounting records reconcile every month?
- What documentation supports the accounting treatment we are using today?
- What would have to change in our system if additional federal guidance is issued?
Where to Go From Here
The honest summary is that 280E has not gone away, the medical versus adult-use question is real for Arizona operators, and the answer to that question is not yet written. The work that pays off under every scenario is the same: a chart of accounts that separates the channels, allocation methodology documented while the facts are fresh, inventory and cost of goods sold that tie to source records, and a reconciliation chain that holds.
If you would like a cannabis CPA to review how your Arizona books would handle a medical and adult-use split, our 280E tax compliance and cannabis tax preparation services cover exactly that, and our practice overview explains how the accounting, tax and advisory pieces fit together.
