Google AI precis
The Colorado Department of Revenue (DOR) adopted a temporary emergency rule on August 4, 2026, to restructure and consolidate its retail marijuana excise tax rules into a single section. [1]
This action was taken by the state’s Division of Taxation to ensure the timely creation of new tax categories required by House Bill 26-1077. [1]
Key Changes Under the Emergency Rule
The temporary rule, officially designated as Rule 39-28.8-301, completely repeals and replaces previous excise tax regulations to clear up confusion and keep everything in one place. It focuses on three major areas: [1, 2]
- Clearer Calculations: It provides formal guidance on how to calculate and apply the 15% state excise tax on retail marijuana.
- Average Market Rate (AMR) Categories: It establishes new guidelines for calculating the median prices (AMRs) of unprocessed marijuana. Following House Bill 26-1077, the state must now split AMRs into distinct categories, such as separate rates for fresh frozen indoor and fresh frozen outdoor unprocessed marijuana.
- Better Enforcement: It outlines strict procedures for how the tax is collected, managed, and enforced across the state. [1, 2, 3]
Why This Matters for the Cannabis Industry
In Colorado, a 15% excise tax is charged the first time a marijuana grower transfers cannabis to a retail store or a product manufacturer. [1, 2]
If the grower and the buyer are owned by the same company (affiliated businesses), they cannot use a standard receipt price to figure out their taxes. Instead, they must use the state’s calculated Average Market Rate. The new categories ensure that indoor and outdoor growers are taxed fairly based on the actual type of product they are moving. [1, 2]
Important Timeline
The state is rolling out these changes quickly, moving from temporary emergency status to a permanent framework within a few weeks
