IRS Audit Preparation for Cannabis Businesses: The Complete Guide

Cannabis Businesses Get Audited More

The IRS audits cannabis businesses at a significantly higher rate than other industries. Estimates suggest cannabis companies face audit rates 3-5x the national average. The combination of 280E complexity, cash-heavy operations, and high revenue makes the industry a prime target for IRS examination.

An audit doesn't have to be devastating. With proper preparation and documentation, you can survive an IRS or state audit without owing additional taxes, penalties, or interest. The key is being audit-ready at all times — not scrambling when the notice arrives.

What Triggers a Cannabis Tax Audit?

Understanding what draws IRS attention helps you avoid red flags:

• High COGS-to-revenue ratio — If your COGS is above 70-80% of revenue, the IRS may question your allocations
• Inconsistent filings — Changes in expense classification methods between years
• Cash discrepancies — Deposits that don't match reported revenue, or large unexplained cash movements
• METRC mismatches — Differences between state tracking data and reported inventory/sales
• Prior audit history — Once audited, you're more likely to be audited again
• High gross receipts — Larger operations get more scrutiny simply due to the dollar amounts involved

The Audit-Ready Documentation Checklist

These are the documents the IRS will request. Having them organized and accessible before the audit notice arrives saves weeks of stress:

• Complete general ledger with supporting journal entries
• Bank statements for all accounts (business and any accounts with mixed use)
• 280E COGS allocation methodology documentation
• Payroll records with 280E employee classification
• Inventory records — purchase invoices, costing calculations, waste logs
• METRC reports — transfers, sales, adjustments, waste/destruction
• Vendor invoices and payment records
• Cash handling procedures and daily count sheets
• Fixed asset depreciation schedules
• Lease agreements (with production vs. non-production square footage allocation)
• Prior year tax returns and any prior audit correspondence

Building Your 280E Defense

The IRS will challenge your COGS allocations. Be prepared to defend every line item:

1. Document your methodology — Write a formal memo explaining how you classify expenses as COGS vs. disallowed. Reference specific IRS code sections and revenue procedures.
2. Be consistent — Use the same allocation methods and costing approaches year after year. Changes invite scrutiny.
3. Support allocations with data — Square footage measurements, time studies, production logs, and utility sub-metering all provide objective support for split allocations.
4. Keep contemporaneous records — Records created at the time of the transaction are far more credible than reconstructions.

State Compliance Audits

Beyond the IRS, state cannabis regulators conduct their own audits focused on seed-to-sale compliance. These audits compare your METRC data against physical inventory counts and financial records. Common findings include:

• Unreported waste or destruction
• Transfer discrepancies between locations
• Inventory counts that don't match METRC on hand
• Late or missing manifests
• Product sold without proper testing documentation

State violations can result in fines, license suspension, or revocation — and they often trigger IRS interest as well.

During the Audit: Best Practices

• Never meet with the IRS without your CPA or tax attorney present
• Answer only what is asked — don't volunteer additional information
• Provide documents promptly but only what was specifically requested
• Keep a log of every document provided and every question asked
• Request all information requests in writing
• Know your appeal rights before the audit begins