3D-rendered topographic map of Missouri showing detailed elevation changes in green and yellow tones, placed on a wooden surface. Bold white 3D text in the foreground reads "MISSOURI CANNABIS TAX GUIDE."Key Points

  • Missouri has de-coupled from IRC §280E, allowing cannabis businesses to deduct ordinary business expenses on state returns.
  • Missouri cannabis retailers are subject to a statewide excise tax and city/county sales taxes.
  • Excise and local tax rates vary by jurisdiction; local governments may impose up to 3% additional tax on adult-use sales.
  • Medical cannabis is taxed differently (lower rate, no excise tax); strict reporting rules apply.
  • On-time, accurate filings are mandatory—noncompliance risks penalties, audits, and license suspension.

Understanding Missouri’s Cannabis Tax Structure

Missouri legalized adult-use cannabis in December 2022. The state imposes a 6% excise tax on all adult-use cannabis sales, in addition to:

  • The standard 4.225% state sales tax, and

  • Local sales taxes (up to 3% for adult-use only, if approved by voters).

Medical cannabis is taxed differently:

  • 4% state sales tax only

  • No excise tax

  • Some jurisdictions may apply standard local sales tax, but not the adult-use cannabis add-on.

280E De-Coupling from Federal Tax Law

Missouri is among several states that do not conform to federal IRC §280E. This means cannabis businesses operating in Missouri may deduct ordinary and necessary business expenses on their state income tax returns, even though those same deductions are disallowed federally. This provides meaningful tax relief to operators at the state level.

Cannabis operators must register with the Missouri Department of Revenue (DOR) and file returns monthly.

Microbusiness Licensing Priorities (Social Equity-Like Program)

While Missouri does not have a formal “social equity” program, Article XIV of the state constitution created a Microbusiness License category, prioritizing individuals from communities disproportionately impacted by cannabis prohibition.

Eligibility may include:

  • Individuals with prior cannabis convictions,

  • Residents of high-arrest ZIP codes,

  • Low-income status.

Benefits:

  • Application preference,

  • Lower fees,

  • Greater access to capital and training.

Local Support Snapshots

St. Louis

  • No city-run equity program.

  • Partners with nonprofits on expungement and small business training.

Kansas City

  • Supports state-level equity efforts.

  • Hosts cannabis business education and startup workshops.

Springfield

  • Relies on DHSS-led initiatives.

  • Partners with local orgs for workforce development and reentry support.

Learn more about licensing at the DHSS Cannabis Program.

Cannabis Excise Tax: What Retailers Need to Know

2025 Excise Tax Rate:

  • 6% statewide on adult-use sales

  • No scheduled increases as of June 2025

Uniformity:

  • This is a state-imposed tax only—local governments cannot add to it.

Who Remits:

Medical Sales:

  • Exempt from the excise tax.

Sales/Gross Receipts Tax: Local Impact on Cannabis Sales

State Base Rate:

  • 4.225% applies to all cannabis sales, both medical and adult-use.

Local Sales Tax (Adult-Use Only):

  • Voter-approved jurisdictions may add up to 3%.

2025 Estimated Combined Sales Tax Rates

Location Total Rate (2025)*
St. Louis ~9.7%
Kansas City ~8.6%
Springfield ~8.1%

*Rates include state + local sales taxes. Always verify using the DOR Tax Rate Lookup Tool.

Important:
Sales tax is calculated on the sale price including excise tax for adult-use transactions.

Medical Cannabis: Tax Exemptions and Requirements

  • Excise Tax: Not applicable.

  • Sales Tax: 4% state-only tax applies. Local add-ons do not apply to medical.

  • Patient Verification: Maintain detailed patient records and verify active medical card status at the point of sale.

Filing and Payment Deadlines

Filing Frequency:

  • Monthly filing required for both excise and sales taxes.

Required Forms:

Key Rules:

  • E-filing is mandatory

  • Zero sales must still be reported

  • No quarterly option for cannabis-specific taxes

Penalties and Compliance Risks

  • Late Filing: Triggers penalties and interest. Repeated lateness increases audit risk.

  • Noncompliance: May result in license suspension or revocation.

  • Audit Risk: Cannabis businesses are high-priority targets for DOR audits, especially for:

    • Incomplete filings

    • Discrepancies in sales vs. inventory

    • METRC inconsistencies

How to Calculate Your Total Cannabis Tax Obligation

Step 1: Determine Local Tax Rate

  • Add state sales tax (4.225%) + local add-on (up to 3%) for adult-use.

Step 2: Calculate Excise Tax

  • Multiply adult-use sales by 6% excise tax.

Step 3: Calculate Sales Tax

  • Apply total sales tax rate to the sum of sale price + excise tax.

Step 4: Medical Sales

  • Apply 4% sales tax only

  • No excise or local add-ons

Key Cannabis Trade Associations in Missouri

Government Contact List

Missouri Department of Health & Senior Services (DHSS)

Missouri Department of Revenue (DOR)

Missouri Cannabis Taxes Financial Calendar

Tax Type Rate/Details Applies To Filing Frequency Due Date
Cannabis Excise Tax 6% of adult-use sales Adult-use retailers Monthly 20th of next month
Sales/GRT Tax 4.225% + local add-ons All cannabis sales Monthly 20th of next month
State Income Tax 280E non-conforming; deductions allowed All cannabis businesses Annually April 15
Medical Exemption No excise, 4% sales tax only Medical retailers Monthly 20th of next month

Special Instructions:

  • E-filing is required for all cannabis-related taxes.

  • Quarterly filing is not permitted for cannabis taxes.

  • Calendar is accurate as of June 2025—always verify with DHSS and DOR.

Disclaimer

This guide is for informational purposes only and does not constitute legal or tax advice. Cannabis operators should consult a licensed CPA or attorney familiar with Missouri cannabis laws and tax policies. All information is accurate as of June 2025, but tax laws may change without notice.