Lawmakers Push IRS for Cannabis Tax Guidance After Rescheduling

Congressional Letter Demands Tax Clarity

The letter, signed by multiple House and Senate members, requests that the IRS clarify how the rescheduling affects Section 280E of the Internal Revenue Code. Under current law, 26 U.S.C. § 280E prohibits businesses trafficking in Schedule I or II controlled substances from deducting ordinary business expenses. With cannabis moving to Schedule III, operators expect relief from this tax burden that's cost the industry billions annually.

Without clear IRS guidance, cannabis businesses face uncertainty in their 2026 tax planning. That's the lawmakers' central concern. Many operators have already begun restructuring their accounting in anticipation of 280E relief.

280E Relief Could Save Industry Billions

Removal of 280E restrictions would allow cannabis operators to deduct payroll, rent, and other ordinary business expenses for the first time since state-legal markets emerged. Industry analysts estimate the change could reduce effective tax rates from 70-80% to standard corporate rates of 21-35%.

But the effective date of 280E relief remains unclear. The DEA's final rule rescheduling cannabis took effect May 1, 2026, yet the IRS hasn't issued guidance on whether the tax change applies retroactively to January 1, 2026, or only prospectively from the rule's effective date.

Timing Pressure for Mid-Year Tax Filings

The lawmakers' letter notes that businesses need guidance before the June 15, 2026 deadline for second-quarter estimated tax payments. Without IRS clarification, operators don't know whether to calculate payments under the old 280E regime or the new Schedule III framework.

Several multi-state operators have stated in recent earnings calls that they're reserving cash for potential tax liabilities under both scenarios until the IRS provides definitive guidance. It's a costly hedge.

IRS Has Not Commented on Timeline

The IRS hasn't publicly responded to the congressional request or indicated when it will issue guidance. The agency typically releases tax guidance through revenue rulings, revenue procedures, or notices published in the Internal Revenue Bulletin.

Tax attorneys have noted that the IRS could take months to formalize guidance, though the agency has authority to issue interim notices more quickly in response to urgent regulatory changes. For context on the broader rescheduling process, see the CannIntel topic hub on DEA rescheduling.

What Operators Should Watch

Cannabis operators should monitor the IRS website for notices and consult tax counsel before filing second-quarter payments. The next key date is June 15, when Q2 estimated payments are due. Industry groups including the National Cannabis Industry Association have also submitted formal comments to the IRS requesting expedited guidance.

Beyond the effective date question, the IRS will need to address transition rules for businesses that filed 2025 returns under 280E but will operate under Schedule III rules for part or all of 2026.