A U.S. banking trade group has filed suit against the Office of the Comptroller of the Currency, alleging the regulator "exceeded its authority" when it approved national trust charters for cryptocurrency custodians. The action escalates a long-running dispute between incumbent banks and the federal banking agency's treatment of digital-asset firms.

The complaint targets the OCC's interpretation that non-depository crypto companies qualify for the same trust charter framework that has historically governed fiduciary activities at national banks. Several digital-asset firms have secured such charters over the past three years, gaining federal preemption of state money transmitter licensing and access to Federal Reserve payment rails.

What does the challenge mean for OCC-approved crypto custodians?

The plaintiffs argue that the OCC's interpretive letters and approval orders stretch the agency's statutory reach beyond what Congress intended under the National Bank Act. The banking group, characterized in the filing as representing institutions subject to consolidated federal supervision, is asking a federal court to invalidate the approvals and bar further grants.

The legal theory centers on whether digital-asset custody and related services fall within the "fiduciary" powers historically granted to national banks. The OCC has maintained that custodial services for crypto assets fit within the agency's traditional authority. Banking industry counsel has consistently rejected that reading.

How many crypto firms hold OCC trust charters?

OCC records show a small but growing roster of approved digital-asset trust companies. Anchorage Digital Bank received the first such charter in January 2021, followed by other applicants focused on stablecoin reserve management and institutional digital-asset custody. Proponents argue the charter provides the regulatory clarity that traditional banks have been reluctant to extend through deposit relationships.

Opponents, including the suing group, contend that granting federal trust charters to non-depository crypto companies creates an uneven playing field. Banks face capital, liquidity, and examination requirements that crypto trust companies do not, while the trust companies gain a federal imprimatur that allows them to compete for institutional custody mandates.

What are the operational stakes for digital-asset markets?

A ruling for the banking group would not unwind assets already under custody at the affected firms, but it would close off the OCC charter pathway for new applicants and could pressure existing holders into alternative regulatory structures. The most likely fallbacks would be state trust charters, state money transmitter licenses, or direct oversight from the Securities and Exchange Commission or Commodity Futures Trading Commission.

The case also arrives as the OCC navigates a leadership transition and as Congress has shown renewed interest in digital-asset market structure legislation. Several pending bills would clarify federal jurisdiction over digital-asset custody, stablecoin issuance, and broker-dealer activity in secondary markets.

What happens next in court?

The complaint is expected to proceed through standard federal civil procedure, with motions practice and discovery likely extending through several quarters. The Department of Justice will defend the OCC's actions, and the agency has historically prevailed when its interpretive authority has been challenged. A district-level decision would almost certainly be appealed.

For institutional clients evaluating digital-asset custodians, the case adds a layer of regulatory uncertainty that had largely receded after the OCC's earlier approvals. Banking counterparties, prime brokers, and asset managers that had begun treating OCC trust companies as federally regulated peers may now reassess that characterization until the litigation resolves.