Cannabis Bookkeeping: IRC Section 280E, Section 471 & Cash Rules

Why Cannabis Bookkeeping Faces Strict IRS Rules

Aldro is the cheapest way to get your business taxes done: $399 flat, with bookkeeping at $20 a month.

State-legal marijuana dispensaries, cultivators, and processors have the exact same federal income and employment tax obligations as any other business. Under Internal Revenue Code Section 61(a), income from any source is taxable, even when the federal government considers the activity illegal under the Controlled Substances Act. Because marijuana remains listed on Schedule I of the Controlled Substances Act, any business that sells or traffics marijuana is subject to IRC Section 280E. Section 280E disallows all ordinary and necessary business deductions and credits, including storefront rent, marketing, advertising, selling wages, and general administrative overhead.

Your books are your primary defense in an IRS examination. In Olive v. Commissioner, the Tax Court upheld an accuracy-related negligence penalty under IRC Section 6662 because a marijuana dispensary failed to keep adequate books and records. The Tax Court also upheld Section 6662 penalties in Alternative Health Care Advocates v. Commissioner and Richmond Patients Group v. Commissioner when operators could not prove reasonable cause for omitting income on their returns.

• Marijuana businesses (Schedule I): Subject to IRC Section 280E. No deductions or credits are allowed for operating expenses, though gross receipts can be reduced by Cost of Goods Sold (COGS) under IRC Section 471.
• Legal hemp businesses (0.3% or less THC): Not subject to IRC Section 280E. Following the 2018 Farm Bill, hemp containing 0.3% or less delta-9 THC on a dry weight basis was removed from the Controlled Substances Act.
• Separate lawful businesses: Under the Tax Court ruling in Californians Helping to Alleviate Medical Problems, Inc. v. Commissioner (CHAMP), Section 280E does not disallow deductions attributable to a separate, lawful trade or business, provided you keep a complete and separate set of books and records for each business.

• IRS: Cannabis industry frequently asked questions
• IRS: Office of Chief Counsel

How to Calculate Cost of Goods Sold Under IRC Section 471

While Congress can disallow tax deductions under Section 280E, the Sixteenth Amendment of the U.S. Constitution only allows Congress to tax gross income, not gross receipts. For a reseller or producer, gross income equals gross receipts minus Cost of Goods Sold (COGS), which represents your constitutional return of capital.

In Chief Counsel Advice (CCA) 201504011, released January 23, 2015, the IRS clarified that cannabis businesses must calculate COGS using the inventory-costing regulations under IRC Section 471 as they existed in 1982 when Section 280E was enacted. You cannot use the uniform capitalization (UNICAP) rules of IRC Section 263A, enacted in 1986, to capitalize purchasing, handling, storage, or general service costs into inventory. The flush language at the end of Section 263A(a)(2) prevents turning a deduction disallowed by Section 280E into a capitalizable inventory cost.

• COGS formula: Beginning inventory, plus current-year purchases (for resellers) or current-year production costs (for producers), minus ending inventory.
• Marijuana resellers and dispensaries (Treas. Reg. Section 1.471-3(b)): Capitalize the invoice price of the marijuana purchased, minus trade or other discounts, plus transportation or other necessary charges incurred in acquiring possession of the marijuana.
• Marijuana producers and cultivators (Treas. Reg. Sections 1.471-3(c) and 1.471-11): Under full-absorption rules, capitalize direct material costs (marijuana seeds or plants), direct labor costs (planting, cultivating, harvesting, and sorting), Category 1 indirect production costs under Section 1.471-11(c)(2)(i), and eligible Category 3 indirect production costs under Section 1.471-11(c)(2)(iii).

• IRS: Office of Chief Counsel
• IRS: Cannabis industry frequently asked questions

Worked Example: Dispensary vs. Cultivator Taxable Income Under Section 280E

To see why your chart of accounts matters, compare a retail dispensary and a cultivation facility that each bring in $1,000,000 in gross receipts and spend $750,000 in total costs during the year. This worked example is written by our team using the rules in IRS Chief Counsel Advice 201504011.

Suppose the retail dispensary spends $450,000 on wholesale flower and edibles (net of vendor discounts), $10,000 on freight to acquire that inventory, $180,000 on retail budtender and store manager wages, $60,000 on storefront rent, and $50,000 on advertising and point-of-sale fees. Assuming beginning and ending inventory are equal, the dispensary's capitalizable COGS under Regulation Section 1.471-3(b) is $460,000 ($450,000 invoice price plus $10,000 transportation). The remaining $290,000 in wages, storefront rent, and advertising is disallowed under Section 280E. By our calculation from the Section 471 rules, although the dispensary only kept $250,000 in book profit ($1,000,000 minus $750,000), it is taxed on $540,000 of federal gross income ($1,000,000 gross receipts minus $460,000 COGS).

Now look at a cultivator with the same $1,000,000 in gross receipts and $750,000 in total costs. The cultivator spends $100,000 on seeds and plants, $350,000 on direct labor for planting, cultivating, harvesting, and sorting, $150,000 on grow-facility rent and repairs attributable to production, and $150,000 on marketing and administrative office salaries. Assuming all production is sold by year-end, the cultivator includes the $100,000 direct materials, $350,000 direct labor, and $150,000 production rent and repairs in COGS ($600,000 total COGS). Only the $150,000 in marketing and general business expenses is disallowed. The cultivator is taxed on $400,000 of federal gross income ($1,000,000 minus $600,000 COGS), which is $140,000 lower than the dispensary's taxable base on the same cash flow.

• IRS: Office of Chief Counsel
• IRS: Cannabis industry frequently asked questions

Accounting Methods: Why Cash Basis Can Trigger an IRS Method Change

Under IRS Publication 583 (revised December 2024), if inventory is necessary to account for your income, you must generally use an accrual method of accounting for purchases and sales, and use that same method to keep your books. Using the cash method in a cannabis business creates a trap under Section 280E because a cash-method business typically deducts expenses from gross income in the year paid rather than capitalizing them into inventory basis.

To prevent an unconstitutional tax on gross receipts, CCA 201504011 confirms that IRS Examination and Appeals have the authority under IRC Section 446(b) to require a cannabis producer or reseller that deducts inventoriable costs on the cash method to switch to an inventory method under Section 471 and an overall accrual method. Any IRC Section 481(a) adjustment required to make that change cannot include non-inventoriable costs disallowed under Section 280E. If a cannabis taxpayer is properly using a non-inventory method (such as a qualifying small business taxpayer or farmer), Examination or Appeals will permit the taxpayer to recover, as a return of capital, the exact same costs that would be inventoriable under Section 471.

• IRS: Office of Chief Counsel
• IRS: How long should I keep records?

Cash Handling, Form 8300 Reporting, and Paying Taxes in Cash

Cash receipts are taxable just like any other payment and must be reported in full. When your business receives more than $10,000 in cash in a single transaction or in two or more related transactions, IRC Section 6050I requires you to file Form 8300, Report of Cash Payments Over $10,000 Received in a Trade or Business, within 15 days after receiving the payment.

Per IRS Publication 583, cash for Form 8300 purposes includes U.S. and foreign coin and currency, plus certain monetary instruments such as cashier's checks, traveler's checks, and money orders. To comply with federal cash rules, your bookkeeping system must follow specific IRS procedures:

• Written Form 8300 controls: Develop written policies and procedures reasonably designed to identify and report cash receipts over $10,000 across single or related transactions, verify customer identification, and retain copies of every Form 8300 filed for 5 years.
• Electronic deposit rule and relief: All businesses must make federal tax deposits electronically through the Electronic Federal Tax Payment System (EFTPS) or face a 10% failure-to-deposit penalty. Unbanked cannabis taxpayers without access to a bank account can request penalty relief on a case-by-case basis based on reasonable cause.
• Paying taxes in cash at an IRS TAC: To pay federal taxes in cash at an IRS Taxpayer Assistance Center (TAC), call 844-545-5640 to schedule an appointment. Not all TACs accept cash or payments of $10,000 or more. The IRS strongly encourages planning ahead 30 to 60 days for large cash payments, and you can book recurring appointments up to 60 days out.

• IRS: Cash payments to the IRS over $10,000: Frequently asked questions
• IRS: Cannabis industry frequently asked questions

Setting Up Your Cannabis Bookkeeping System and Supporting Documents

The IRS recommends recording business transactions daily in journals and ledgers. In Publication 583, the IRS notes that double-entry bookkeeping provides built-in checks and balances because every transaction is posted as a balancing debit and credit across permanent asset and liability accounts and temporary income and expense accounts. If you operate more than one business, you must keep a complete and separate set of books and records for each business, deposit all daily receipts into a dedicated business checking account, avoid writing checks payable to cash, and reconcile your bank statement every month.

Every entry in your books must be backed up by organized supporting documents kept in a safe place by year and type of transaction:

• Gross receipts records: Cash register tapes, bank deposit slips (showing cash and credit sales), receipt books, invoices, credit card charge slips, and Forms 1099-MISC or 1099-NEC.
• Inventory and expense records: Canceled checks or electronic funds transfer proofs, cash register tape receipts, credit card receipts and statements, petty cash slips attached to receipts, and itemized vendor invoices. Each record must identify the payee, amount paid, proof of payment, date incurred, and an item description. Proof of payment alone does not establish what was bought, so you must also keep the invoice or receipt.
• Asset records: Purchase and sales invoices, real estate closing statements, and canceled checks showing when and how you acquired the asset, purchase price, cost of improvements, depreciation or Section 179 deductions taken, how the asset was used, and when and how it was disposed of.
• Electronic accounting software rules: Under Revenue Procedures 97-22 and 98-25, computerized bookkeeping and electronic storage systems must index, store, preserve, retrieve, and reproduce legible records, maintain an audit trail linking machine-sensible records back to source documents, document internal controls against unauthorized alteration or deletion, and include a complete chart of accounts with detailed account descriptions.

• IRS: Publication 583 (12/2024), Starting a Business and Keeping Records
• IRS: What kind of records should I keep

Daily, Monthly, and Quarterly Cannabis Bookkeeping Checklist

To keep your operation audit-ready and prevent Section 6662 negligence penalties, our team wrote this cannabis bookkeeping checklist based on IRS Publication 583 and the IRS Cannabis Industry FAQs.

• Daily: Run end-of-day cash register tapes and summarize daily cash sales and sales tax collected (separate state sales tax from gross receipts so you do not report collected sales tax as federal income).
• Daily: Log all vendor deliveries and attach itemized invoices showing payee, date, item description, and proof of payment.
• Daily: Screen all customer and wholesale cash receipts for single or related payments exceeding $10,000. Verify customer ID and start the 15-day clock to file Form 8300.
• Monthly: Reconcile your business bank statements against your check disbursements journal, cash receipts journal, and general ledger.
• Monthly: Separate production direct materials, direct labor, and eligible indirect production costs (Section 1.471-11) from non-deductible Section 280E selling and administrative expenses.
• Quarterly and 30 to 60 days before tax deadlines: Calculate quarterly estimated income taxes (Form 1040-ES if individuals/owners expect to owe $1,000 or more, or Form 1120-W and EFTPS deposits if a corporation expects to owe $500 or more) and file Form 941 for quarterly employment taxes. If unbanked and paying $10,000 or more in cash, call 844-545-5640 at least 30 to 60 days ahead to book an IRS TAC appointment.

• IRS: Cannabis industry
• IRS: Cash payments to the IRS over $10,000: Frequently asked questions

How Long to Keep Cannabis Tax and Bookkeeping Records

Under IRS recordkeeping rules, you must keep books and supporting documents until the period of limitations for each tax return expires, plus meet specific retention timelines for employment taxes and cash reports.

• IRS: How long should I keep records?
• IRS: Publication 583 (12/2024), Starting a Business and Keeping Records

Bookkeeper vs. Accountant: Duties and Costs

According to the U.S. Bureau of Labor Statistics (BLS) Occupational Outlook Handbook, bookkeeping, accounting, and auditing clerks handle day-to-day transaction recording: posting debits and credits to the general ledger, verifying receipts, preparing bank deposits, reconciling accounts, and producing financial statements. Accountants and auditors examine those statements for compliance with laws and regulations, compute taxes owed, prepare tax returns, and assess risk.

Hiring in-house administrative or retail accounting staff carries payroll overhead that is non-deductible under Section 280E. According to May 2025 BLS data, the median annual pay for bookkeeping, accounting, and auditing clerks is $50,670 ($24.36 per hour), while the median annual pay for accountants and auditors is $83,680 ($40.23 per hour). By our calculation from the May 2025 BLS tables, hiring an accountant or auditor costs $33,010 more per year (65.1% more) at the median than hiring a bookkeeping clerk.

If you want your books and tax returns handled without full-time payroll overhead, our team can help. Aldro is the cheapest way to get your business taxes done: $399 flat, with bookkeeping at $20 a month. The flat price covers everything tax for the year (every federal and state or provincial business return: Schedule C, 1065, 1120-S, 1120 and state returns. T2 and T1 with T2125 in Canada), multi-state returns at the same price, the owner's personal return when the business income needs it, extensions and quarterly estimate reminders included, and 1099-NEC slips included. Bookkeeping covers unlimited bank and card accounts, monthly reconciliation and statements, but not payroll processing or sales-tax filing. Switching from Bench or another service, we start within a week of getting the documents.

• BLS: Bookkeeping, Accounting, and Auditing Clerks : Occupational Outlook Handbook: : U.S. Burea
• BLS: Accountants and Auditors : Occupational Outlook Handbook: : U.S. Bureau of Labor Statistic