Cannabis Law Glossary
Marijuana-Related Business (MRB) Banking
Definition
The challenge cannabis operators face accessing banking services because federal law exposes banks to money laundering liability for serving Schedule I businesses — the problem SAFE Banking aims to fix.
Marijuana-Related Business (MRB) Banking
The term "MRB" (Marijuana-Related Business) is the regulatory terminology used by FinCEN — the Financial Crimes Enforcement Network — to describe businesses that handle cannabis money. Banks serving MRBs face potential liability under federal money laundering statutes because cannabis remains Schedule I under the Controlled Substances Act.
The FinCEN 2014 Guidance
In 2014, FinCEN issued guidance allowing banks to serve MRBs if they file Suspicious Activity Reports (SARs). This created a compliance framework — but not a legal safe harbor. As a result, most large banks still refuse cannabis accounts, leaving operators dependent on smaller community banks, credit unions, or cash-only operations.
Consequences of Banking Exclusion
Operating without banking access forces cannabis companies to handle large volumes of cash, creating security risks, payroll difficulties, tax payment challenges, and inability to access credit or capital markets on standard terms.
The SAFE Banking Act
The SAFE Banking Act has passed the House multiple times but has not been enacted into law. It would provide a federal safe harbor for banks serving state-legal cannabis businesses. Passage would dramatically improve banking access and reduce operating costs.
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