IRC 471(c) and Cannabis: Can the Small-Business Inventory Method Lower Your 280E Tax?

IRC 471(c) lets a business with average annual gross receipts of $32 million or less (tax years beginning in 2026) account for inventory the way its own books do, and some cannabis operators use it to move more costs into cost of goods sold and shrink their 280E bill. Treasury’s regulations say 471(c) cannot turn a nondeductible cost into an inventory cost, no court has ruled on the strategy, and the IRS can challenge it on exam.

Section 280E of the Internal Revenue Code (IRC) denies every deduction and credit to a business that traffics in a Schedule I or II controlled substance. That leaves cost of goods sold (COGS) as the main lever a licensed cannabis business has, which is why IRC §471(c), the small-business inventory exception added by the 2017 tax act, gets so much attention.

This guide covers who qualifies, the three 471(c) methods, the IRS position and the arguments against it, and how to weigh the audit risk before you sign a return.

What is IRC 471(c)?

IRC 471(c) is a small-business exception to the federal inventory rules. A business that passes the gross receipts test does not have to follow the standard inventory-costing rules in §471(a). Instead, its inventory method “shall not be treated as failing to clearly reflect income” if it either treats inventory as non-incidental materials and supplies, or follows the method in its applicable financial statement (AFS) or, with no AFS, “the books and records of the taxpayer prepared in accordance with the taxpayer’s accounting procedures” (26 U.S.C. §471(c)).

In plain language, a qualifying business can generally let its book inventory method drive its tax inventory method. Treasury finalized the rules in Treasury Decision 9942, published January 5, 2021, now Treas. Reg. §1.471-1(b). For a cannabis business, those regulations matter more than the statute.

Who qualifies for the 471(c) small-business inventory method?

A business qualifies for 471(c) if it meets the gross receipts test in IRC §448(c) and is not a tax shelter. For tax years beginning in 2026, the test is met when average annual gross receipts for the prior three tax years do not exceed $32,000,000, per Rev. Proc. 2025-32. The statutory base figure is $25 million, adjusted for inflation each year (26 U.S.C. §448(c)).

Three details trip up multi-entity cannabis groups:

• Related entities are combined. Under §448(c)(2), businesses treated as a single employer (common control groups and affiliated service groups) count as one taxpayer for the test. A holding company with a cultivation entity, a processing entity and three dispensaries tests their combined receipts.
• Tax shelters are excluded. The statute carves out a “tax shelter prohibited from using the cash receipts and disbursements method,” a term defined by reference to §461(i)(3). Entities with passive investors who are allocated most of the losses should check this before relying on 471(c).
• Sole proprietors and other non-corporate owners test each trade or business separately, under §471(c)(3).

Most single-location dispensaries and many cultivators fall well under $32 million. Qualifying is usually the easy part. What a qualifying cannabis business can do with the method is the hard part.

What are the 471(c) inventory methods?

Treasury’s regulations recognize three 471(c) methods: the non-incidental materials and supplies (NIMS) method, the AFS method, and the non-AFS (books and records) method. The table compares them.

Method	Who can use it	What counts as an inventory cost	Rule for nondeductible costs
NIMS (§1.471-1(b)(4))	Any qualifying business	Only “direct material costs of the property produced or the costs of property acquired for resale”	Excludes “a cost for which a deduction would be disallowed”
AFS method (§1.471-1(b)(5))	Qualifying businesses with an applicable financial statement, such as audited financials	Costs the business capitalizes to inventory in its AFS	Excludes a cost “neither deductible nor otherwise recoverable” but for this method
Non-AFS method (§1.471-1(b)(6))	Qualifying businesses with no AFS	Costs the business capitalizes to inventory in books and records that reflect its business activities for non-tax purposes	Same exclusion as the AFS method

For a cannabis producer, NIMS is usually a step backward: it drops the direct labor and indirect production costs a cultivator or processor can already include under the standard §471 full-absorption rules. Operators looking at 280E planning focus on the AFS and non-AFS methods, which follow whatever the books capitalize.

Can 471(c) reduce taxes for a 280E cannabis business?

471(c) can reduce a 280E business’s taxable income only if the extra costs it capitalizes into inventory survive IRS review, and Treasury’s regulations say they generally should not. The theory is simple. 280E blocks deductions, not COGS, because COGS reduces gross receipts before any deduction is taken. The IRS’s own cannabis FAQ says 280E “does not, however, prohibit a participant in the marijuana industry from reducing its gross receipts by its properly calculated cost of goods sold.” If 471(c) lets a business define inventory costs by its books, the argument goes, costs the books capitalize become COGS, and 280E never reaches them.

The illustration below shows what is at stake for a single dispensary. The numbers are round and illustrative only, not a projection for any business.

Illustrative dispensary, one tax year	Standard §471 reseller rules	Aggressive 471(c) books-method position	Same position after an IRS adjustment
Gross receipts	$3,000,000	$3,000,000	$3,000,000
COGS: product cost and freight-in	$1,500,000	$1,500,000	$1,500,000
COGS: store rent and labor capitalized on the books	$0	$400,000	$0 (disallowed)
Gross income before 280E	$1,500,000	$1,100,000	$1,500,000
Operating expenses disallowed by 280E	$900,000	$500,000	$900,000
Income subject to tax (before other items)	$1,500,000	$1,100,000	$1,500,000, plus interest and a possible 20% penalty

The middle column is the hoped-for benefit. The right-hand column is what happens if the IRS rejects the position on exam: the tax comes back with interest, and potentially an accuracy-related penalty equal to 20 percent of the underpayment under IRC §6662. For a retailer, the standard rules are narrow to begin with: CCA 201504011 describes a reseller’s inventoriable cost as the invoice price of the product, less discounts, plus transportation or other necessary charges to acquire it. Our guide to what a cannabis business can deduct under 280E and how cost of goods sold works covers those baseline rules for dispensaries, growers and processors.

What does the IRS say about using 471(c) with 280E?

The IRS position, written into Treasury’s regulations, is that 471(c) cannot be used to capitalize a cost that some other Code provision would disallow. Both the AFS and non-AFS methods in Treas. Reg. §1.471-1(b) say an inventory cost “does not include a cost that is neither deductible nor otherwise recoverable but for” the 471(c) method, “in whole or in part, under a provision of the Internal Revenue Code (for example, section 162(c), (e), (f), (g), or 274).”

Section 280E is not named in that example list. Read plainly, the rule still reaches 280E-disallowed costs: the list is introduced with “for example,” and a dispensary’s rent and payroll are exactly the kind of cost 280E makes nondeductible. Expect the IRS to argue it that way. As of October 2026, we are not aware of any court decision that applies 471(c) to a 280E business, and the IRS has not published guidance addressing the two sections together. Its cannabis FAQ points taxpayers to §471 and CCA 201504011, and does not mention 471(c).

The case law on adjacent questions has gone the government’s way. In Patients Mutual Assistance Collective Corp. v. Commissioner, 151 T.C. 176 (2018), aff’d 995 F.3d 671 (9th Cir. 2021), the Tax Court held that a 280E dispensary could not use the §263A capitalization rules to pull more costs into inventory. Chief Counsel took the same position in CCA 201504011, which concludes that a 280E taxpayer computes COGS under §471 as it stood when 280E was enacted in 1982. That memo “may not be used or cited as precedent,” but it shows how the IRS reasons.

Taxpayers who take the 471(c) position point to several arguments:

1. The statute’s text. Section 471(c) says a books-based method “shall not be treated as failing to clearly reflect income,” with no exception for 280E businesses.
2. COGS is not a deduction. The IRS itself agrees 280E does not reach properly calculated COGS.
3. The regulation’s limits. The regulatory exclusion lists other Code sections by name and leaves 280E out.
4. Regulatory deference has changed. In Loper Bright Enterprises v. Raimondo, 603 U.S. 369 (2024), the Supreme Court held that “Chevron is overruled” and that courts “must exercise their independent judgment” on what a statute means (opinion). Some practitioners argue that makes the §1.471-1(b) exclusion easier to challenge.

Those are arguments, not results. Until a court rules, an operator taking the position should expect to defend it.

How do you change to the 471(c) method?

You change to a 471(c) method by filing Form 3115, Application for Change in Accounting Method, generally under the IRS automatic-change procedures. The Form 3115 instructions list the small-business inventory changes as designated change number (DCN) 260 for the NIMS method and DCN 261 for the AFS or non-AFS method, citing section 22.18 of Rev. Proc. 2022-14 or its successor.

A typical change follows five steps:

1. Confirm eligibility for the year of change: the $32 million test for 2026 (combined across related entities) and the tax-shelter rule.
2. Document the book method. The non-AFS method follows books kept for non-tax purposes under the business’s own accounting procedures. A capitalization policy written after the fact, only for the return, invites challenge.
3. Compute the §481(a) adjustment, the catch-up amount that keeps income from being double-counted or skipped when the method changes.
4. Decide on disclosure. Form 8275-R is used “to disclose positions taken on a tax return that are contrary to Treasury regulations.” A position that capitalizes 280E-disallowed costs despite §1.471-1(b) is that kind of position. Disclosure can reduce penalty exposure in some cases, but it does not stop the IRS from adjusting the tax.
5. File and keep the support. Attach Form 3115 to a timely filed return for the year of change, send the required copy to the IRS, and keep the cost-allocation workpapers with it.

Is a 471(c) position worth the audit risk for your business?

A 471(c) position is worth considering only when the business qualifies, its books already capitalize the costs in question for real business reasons, the dollars justify a possible dispute, and the owners accept that the IRS may disallow it. For many operators, the better return comes from getting standard §471 COGS right first.

Weigh these five questions before filing:

1. How much is really at stake? Model the tax with and without the position, then add interest and a 20 percent penalty to the downside case.
2. Would your books capitalize these costs anyway? A method that only exists on the tax return is the weakest version of this argument.
3. Is your standard COGS already maximized? Producers can include direct labor and indirect production costs under the full-absorption rules, and many leave legitimate COGS unclaimed.
4. Can you carry a dispute? An untested position can mean a long exam, then Appeals or litigation, with interest running the whole time.
5. Is your business medical, adult-use or both? The DOJ’s final order of April 22, 2026, moved state-licensed medical cannabis to Schedule III. Treasury’s press release SB0471 says rescheduling “generally removes section 280E as a bar to claiming deductions and credits” for businesses that no longer traffic in Schedule I or II substances, and promises guidance, including apportionment for mixed businesses. As of October 2026, none has been published; “Guidance under §280E” sits on the 2026–2027 Priority Guidance Plan. Adult-use cannabis remains in Schedule I and fully subject to 280E. A medical operator may need a 471(c) argument far less once guidance lands. Our explainer on what IRC 280E is and what medical rescheduling changed covers the transition.

Green Collar CFO supports IRS §471(c) inventory method elections for qualifying businesses as part of our tax services. We keep detailed records and supporting documentation for every cost allocation, and we tell clients plainly where a position is untested. For the bookkeeping side, our cannabis accounting services cover cost allocation and audit-ready books.

This article is general information, not tax advice. Whether 471(c) fits your business depends on your facts, your licence type and your appetite for risk, so talk to a credentialed tax advisor before you file.

Frequently Asked Questions

What is the 471(c) tax code?

IRC 471(c) is the small-business inventory exception in the Internal Revenue Code. It lets a business with average annual gross receipts of $32 million or less (tax years beginning in 2026) use its financial-statement or books-and-records inventory method, or treat inventory as non-incidental materials and supplies, instead of the standard §471(a) rules.

Does the IRS allow 471(c) for 280E businesses?

The IRS allows a 280E business that qualifies to use a 471(c) method, but its regulations exclude from inventory any cost that another Code provision makes nondeductible. That exclusion is how the IRS would block using 471(c) to recover 280E-disallowed costs. No court has ruled on the question as of October 2026.

Can I avoid 280E with 471(c)?

No, 471(c) does not avoid or remove 280E. At most, it supports an argument that certain costs belong in cost of goods sold, which 280E does not reach. That argument conflicts with Treas. Reg. §1.471-1(b), is untested in court and can be adjusted on exam with interest and penalties.

Do I need to file Form 3115 to use 471(c)?

Yes, an existing business switching to a 471(c) method generally files Form 3115 under the automatic-change procedures (DCN 260 for NIMS, DCN 261 for the AFS or non-AFS method). A new business adopting a method on its first return does not file Form 3115 for that first year.

Find Out Whether 471(c) Makes Sense for Your Cannabis Business

The right answer on 471(c) starts with your numbers: how your books capitalize costs, what standard COGS you may be missing and what a position would really save. Green Collar CFO is based in Seattle and works with licensed operators nationwide on 280E, inventory accounting and tax planning.

Request a complimentary tax and financial analysis, which includes a review of your §280E exposure, or call 253-733-9854. It takes under an hour and carries no obligation.