Why It Matters

A patchwork of state cannabis legalization has collided with federal prohibition, leaving thousands of state-licensed marijuana businesses unable to access basic banking services. The U.S. Government Accountability Office (GAO) released "Banking Services: Cannabis Businesses Face Access Challenges" on September 8, 2026, finding that most financial institutions still refuse to serve them despite updated regulatory guidelines.

The banking standoff has real consequences: cannabis business owners report account closures, prohibitive fees, and blocked payment processing, while their employees struggle to access personal financial services tied to their employment in the industry. Some participants said a federal safe harbor law shielding banks and credit unions from civil and criminal liability in states that legalize cannabis could lead their institutions to begin serving or expand existing services to cannabis-related businesses.

The Big Picture

In 2014, the Financial Crimes Enforcement Network (FinCEN) issued guidance instructing financial institutions to gather thorough information on cannabis-related business customers and file suspicious activity reports for certain transactions involving cannabis-related businesses.

Cannabis remains illegal under federal law with certain exceptions, and many states have legalized cannabis for medical or recreational use and allow licensed businesses to grow, manufacture, or sell cannabis products.From 2015 to 2019, the number of financial institutions reporting provision of services to cannabis-related businesses increased, but the growth stalled: the number remained relatively steady from 2019 through 2024.

In 2024, about 1,000 banks and credit unions filed suspicious activity reports with cannabis-related terms, according to FinCEN data, yet that figure obscures a larger problem: financial institutions consider potential legal and regulatory sanctions and the costs of complying with Bank Secrecy Act requirements as key factors dissuading them from entering the cannabis market.

Members of the Senate Banking Committee, Sen. Elizabeth Warren (D-MA), Sen. Raphael Warnock (D-GA), Sen. Tina Smith (D-MN), and Sen. John Fetterman (D-PA), commissioned the GAO study to examine why federal guidance has failed to move banks into the cannabis market and what barriers remain for state-licensed operators. The GAO's study drew on focus groups and interviews with 74 financial-institution participants and 51 cannabis business owners and managers, selected to represent different asset sizes, institution types, business sizes, and policies on serving the cannabis sector.

The Bottom Line

Federal guidance alone has not solved the banking crisis for cannabis businesses. While FinCEN's 2014 framework provides a roadmap for compliance, most financial institutions view the legal risks and regulatory burden as too high. The result: state-legal cannabis operators remain largely shut out of conventional banking, forcing them to operate in cash and leaving their employees unable to access personal financial services tied to their industry employment. Advocates argue that a federal safe harbor law, shielding banks from civil and criminal liability for serving state-legal cannabis businesses, could break the stalemate, but the GAO's findings suggest that legal clarity alone may not be enough without broader federal action, such as rescheduling cannabis or reducing Bank Secrecy Act compliance costs.

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