How Cannabis Is Taxed in Washington

Washington's cannabis tax structure is the most aggressive in the nation. The centerpiece is a 37% excise tax on the retail selling price (RCW 69.50.535), collected at the point of sale. On top of this excise, consumers pay the standard state sales tax of 6.5% plus local sales taxes ranging from 0% to 3.9%, depending on the jurisdiction. The combined result is a total effective tax rate of 44% to 50% on every recreational cannabis purchase.

Cannabis businesses also owe the state Business & Occupation (B&O) tax on gross receipts, with no deduction for cost of goods sold — a significant burden given already-thin margins in a market experiencing chronic price compression.

How Washington's Tax Rate Evolved

The current 37% rate was not what voters originally approved. Initiative 502 (2012) established a 25% excise tax at each tier of the supply chain — producer to processor, processor to retailer, and retailer to consumer. This three-tier approach was widely criticized for compounding taxes and making legal cannabis uncompetitive with the illicit market.

In 2015, the Legislature replaced the three-tier system with a single 37% excise tax at the retail level. While the nominal rate is higher than the original 25%, the single-point collection eliminated the compounding effect and simplified administration. Nevertheless, 37% remains the highest state-level cannabis excise tax in the country.

Revenue: Peak and Decline

Washington's cannabis excise tax has generated substantial revenue since the first stores opened in 2014, but collections have followed a pattern of rapid growth followed by steady decline:

Revenue peaked at $555.4 million in fiscal year 2021, driven by pandemic-era consumer demand and higher average prices. Since then, collections have declined to approximately $454.7 million in 2024, reflecting persistent price compression across the market. Notably, sales volume has remained relatively steady — consumers are purchasing similar amounts at significantly lower prices.

Where the Revenue Goes

All cannabis excise tax revenue flows into the Dedicated Cannabis Account (RCW 69.50.530) and is distributed according to a formula established in RCW 69.50.540. The revenue reaches 13 state agencies and 239 local governments:

• ~52% — Basic Health Plan Trust (Medicaid): The largest share funds health care coverage for low-income Washingtonians through the state's Medicaid program
• ~11% — Youth prevention and community health: Funding for youth substance abuse prevention programs, community health centers, and public health initiatives
• ~5% — Local governments: Direct distributions to 239 local governments across the state, providing revenue for cities and counties where cannabis businesses operate
• $3.2 million — Commerce social equity: Dedicated funding for the Department of Commerce to support the Social Equity in Cannabis Program
• $475,000 — UW/WSU research: Research funding split between the University of Washington and Washington State University for cannabis-related studies
• WSLCB administration: Funding for the Washington State Liquor and Cannabis Board to cover the costs of licensing, enforcement, and regulatory operations

Medical Cannabis Tax Exemption

HB 1453, effective June 6, 2024, exempts qualifying medical cannabis patients from both the 37% excise tax and state sales tax. This represents a total savings of 44–50% on the tax burden for patients, making medical cannabis significantly more affordable than recreational purchases. The exemption sunsets June 30, 2029, at which point the Legislature will need to decide whether to extend it.

Failed Tax Increase Attempts (2026)

Despite Washington already having the highest state-level cannabis excise tax, three bills in the 2026 legislative session proposed further tax increases:

• HB 2433: Proposed increasing the excise tax rate
• SB 6328: Additional tax increase proposal
• SB 5650: Third tax increase attempt

All three bills failed, reflecting legislative recognition that further tax increases could exacerbate the already-significant price gap between the legal and illicit markets.

The Tax Debate

Washington's cannabis tax structure remains one of the most debated aspects of the state's legalization framework. Key tensions include:

• Revenue vs. competitiveness: The high tax rate generates substantial public revenue but makes legal cannabis significantly more expensive than illicit alternatives
• B&O burden: Cannabis businesses pay B&O tax on gross receipts without the ability to deduct cost of goods sold, compounding the overall tax burden
• Declining collections: Revenue has fallen roughly 18% from its 2021 peak despite steady sales volume, primarily due to price compression
• Medical equity: The HB 1453 medical tax exemption addresses patient affordability but has a sunset date (June 30, 2029) that creates future uncertainty

Washington imposes a 37% excise tax (RCW 69.50.535) plus 6.5% state sales tax and 0–3.9% local sales tax, for a total effective rate of 44–50%. Revenue peaked at $555.4M (FY2021) and declined to ~$454.7M (2024). Revenue is distributed via the Dedicated Cannabis Account (RCW 69.50.530) to 13 agencies and 239 local governments.

WSLCB & Washington State Legislature