A recent report from Yale University highlights the potential financial windfall for our community that would accompany the federal legalization of marijuana in the United States.
The report suggests that federal legalization could generate $57.9 billion over the next decade through an excise tax, with full legalization across all states potentially doubling this figure.
But the path to such revenue is fraught with legal complexities and uncertainties.
Regardless, most Postindustrial States that haven’t already embraced full legalization (i.e., most of them, unfortunately) would benefit from billions of additional dollars to offset persistent budget shortfalls for education and infrastructure improvements.
The dual nature of marijuana taxation
Marijuana, much like alcohol and tobacco, presents an attractive target for taxation due to its perceived social undesirability.
Yet, unlike these substances, marijuana remains illegal under federal law, creating a patchwork of regulations across states that complicates federal efforts to tax it effectively.
As of 2026, marijuana is legal for medical use in 47 states and for recreational use in 24 states and the District of Columbia.
This state-by-state legalization has fostered a thriving formal cannabis market, estimated to reach $40 billion by 2035.
However, without federal legalization, cannabis businesses face numerous hurdles, such as limited access to banking services and the inability to deduct business expenses on federal taxes.
Potential revenue from federal legalization
The Yale report outlines two policy scenarios for federal legalization. The first scenario involves federal legalization without additional state-level changes and projects $57.9 billion in revenue from a $0.00625 per milligram THC excise tax over ten years.
Check out the full Yale University report here.
The second scenario, where all states legalize marijuana, projects $111.3 billion in revenue over the same period.
The proposed excise tax would mimic those on alcohol and tobacco, focusing on the product’s quantity and potency rather than its retail price. This tax strategy aims to curb use while stabilizing revenue despite fluctuations in market prices.
Challenges and uncertainties
Despite the promising financial projections, several uncertainties cloud the path to realizing this revenue.
The market’s response to the proposed tax, the shift of illicit market activity into the formal sector, and the extent of compliance with federal tax laws after legalization all raise significant questions.
Currently, a substantial portion of the U.S. cannabis market remains illicit, with about 75% of activity occurring outside the formal sector.
Federal legalization could draw significant portions of this market into the legal sphere, expanding the taxable base. How much of this transition occurs depends on factors such as tax rates and enforcement strategies.
Implications for income and payroll taxes
Federal legalization would likely increase income and payroll tax revenues as workers in the illicit cannabis economy transition to formal employment.
Currently, many workers in this sector do not report income or pay payroll taxes because they lack formal employment structures. Legalization would formalize these jobs, increasing federal tax revenue from wages and profits.
Business deductions post-legalization
Under current law, cannabis businesses cannot deduct ordinary business expenses due to marijuana’s classification as a Schedule I controlled substance.
Legalization would remove this barrier, allowing businesses to deduct expenses like rent and payroll, thereby reducing their tax burden and encouraging transition to the formal sector.
Legal weed = more money for states like ours
The Yale report underscores the potential financial benefits of federal marijuana legalization, alongside the complexities of navigating a fragmented regulatory landscape.
While the revenue projections are enticing, the transition from an illicit to a formal market and the integration of cannabis businesses into the existing tax framework present substantial challenges.
As the debate over legalization continues, policymakers must weigh these factors carefully to maximize the benefits of a potentially lucrative new tax revenue stream.
