Custodia Bank’s Final Appeal Rejected in Federal Reserve Master Account Case

The long-running legal saga between **Custodia Bank** and the Federal Reserve has concluded with a decisive setback for the Wyoming-based crypto-focused institution. On March 13, 2026, the U.S. Court of Appeals for the Tenth Circuit denied Custodia’s petition for an en banc rehearing in a 7-3 vote, effectively ending its five-year battle for a Federal Reserve master account.

Custodia, a special-purpose depository institution chartered in Wyoming and founded by Caitlin Long, applied for a master account in October 2020. The Federal Reserve Bank of Kansas City initially signaled no major issues but formally denied the request in January 2023, citing risks from the bank’s cryptocurrency-centric business model to the Fed’s payment systems and financial stability.

Custodia sued, arguing under the Monetary Control Act that state-chartered banks are entitled to Fed services, including master accounts, without discretionary denial. Lower courts and a 2-1 Tenth Circuit panel ruling in October 2025 sided with the Fed, affirming that regional Reserve Banks have discretion to approve or deny such access—even for eligible institutions—to safeguard the system.

The recent denial of full-court rehearing upholds this precedent, closing Custodia’s primary appellate path. A strong dissent from Judge Timothy Tymkovich warned that denying master accounts can be “akin to a death sentence” for banks, severely limiting operations without direct Fed access.

**What a master account provides**: Direct reserve holding at the Fed, seamless wire transfers, efficient clearing/settlement, and reduced reliance on intermediaries—critical for cost, speed, and stability in traditional banking.

**Broader implications**: The ruling reinforces Fed discretion over master accounts, potentially deterring similar crypto or fintech applicants. It highlights tensions between innovation in digital assets and regulatory caution on risks like volatility or illicit finance. Meanwhile, the Fed granted a limited master account to Kraken in early March 2026 and is developing streamlined frameworks, suggesting evolving—but selective—access.

Without direct Fed rails, Custodia and peers must use correspondent banks, increasing costs and friction. Custodia could petition the Supreme Court or reapply under new guidelines, but the decision marks a milestone in the clash between emerging crypto banking models and central bank oversight.