Missouri County Ordered to Refund Cannabis Tax After Illegal Levy

County Levy Ruled Invalid Under State Cannabis Law

Harrison County imposed a 3% local cannabis sales tax without statutory authority, conflicting with Missouri's state-level 6% cannabis tax framework. The county began collecting the tax from licensed dispensaries operating within its jurisdiction in February 2024. By May 2026, it had generated roughly $47,000 in revenue, according to county financial records.

Missouri's Amendment 3 legalized adult-use cannabis in November 2022 and established a 6% state sales tax on cannabis products. It included no provision for additional local taxation beyond existing municipal sales taxes. Harrison County imposed its levy through a county commission vote—no voter approval, no enabling legislation from the state General Assembly.

State Attorney General Opinion Triggers Refund Order

The Missouri Attorney General's office issued a formal opinion in May 2026 concluding that counties lack authority to impose cannabis-specific taxes without explicit statutory authorization. A Harrison County dispensary operator requested the opinion. It cited the state's preemption of cannabis taxation under Article XIV of the Missouri Constitution.

On June 20, 2026, the Harrison County Commission voted 2-1 to begin processing refunds to the four dispensaries that paid the tax. The county's legal counsel advised that continuing to collect would expose the county to potential litigation and additional liability.

Refund Mechanics and Timeline

Dispensaries will receive refunds proportional to their tax payments. The largest operator is due approximately $28,000. The county has allocated funds from its general reserve to cover the refunds, which must be processed by August 15, 2026, under the commission's resolution.

County officials stated that dispensaries won't receive interest on the improperly collected tax revenue, though one dispensary operator has indicated potential legal action to recover interest and administrative costs. Missouri law doesn't automatically provide for interest on improperly collected local taxes unless a court orders it.

Implications for Other Missouri Jurisdictions

At least three other Missouri counties—Daviess, Grundy, and Worth—have imposed similar unauthorized cannabis taxes and may face refund demands. The Attorney General's opinion applies statewide. That creates potential exposure for any jurisdiction that enacted local cannabis levies without voter approval or state enabling legislation.

For operators working through Missouri's cannabis tax landscape, see the CannIntel topic hub on cannabis tax refunds and legal challenges for ongoing coverage of similar disputes in other states. Missouri's situation mirrors tax challenges in Illinois and Oklahoma, where local jurisdictions have attempted to layer additional taxes onto state-mandated cannabis levies.

The Missouri Cannabis Trade Association has called for legislative clarity in the 2027 session to establish whether counties can impose local cannabis taxes with voter approval. Until then, enforcement remains inconsistent across the state's 114 counties.