Custodia Drags Fed Master Account Fight to Supreme Court

On Friday, Custodia Bank asked the U.S. Supreme Court to decide whether the Federal Reserve can deny a Fed master account with discretion the bank calls “unbounded” and “unreviewable.” The timing matters because Custodia is trying to pull its long-running payments-access fight into the Court’s fresh scrutiny of the Fed’s power structure.

Custodia filed the petition after losing at the district court and appellate levels, according to American Banker. The case is no longer just about one Wyoming digital asset bank. It asks who gets direct access to the standard banking system’s settlement infrastructure, and who must stay dependent on intermediaries.

July 10 petition turns a Fed master account denial into a banking gatekeeping fight

Custodia wants the Supreme Court to review a Tenth Circuit Court of Appeals decision from March that favored the Fed. The bank argues that the lower courts effectively let the Federal Reserve Bank of Kansas City decide who can access Fed payment services without meaningful judicial limits.

That is the core fight. A Fed master account lets a qualifying institution hold balances at a Federal Reserve Bank and settle payments directly. Without one, a bank must work through another bank. For a digital asset bank built to serve crypto clients, that dependency can shape costs, operations, and survival.

Custodia’s petition frames the denial as a structural problem, not a one-off supervisory call.

“This case presents an exceptionally important question: whether regional Federal Reserve Bank presidents possess unbounded, unreviewable discretion to deny disfavored banks access to the Federal Reserve's payment services,” Custodia's lawyers wrote.

XOOMAR analysis: If that framing sticks, the case becomes bigger than crypto. A ruling that confirms broad, hard-to-review Fed discretion would warn any novel banking model that a state charter may not be enough if the Fed rejects its path into core payment rails.

Related XOOMAR reading for the broader fintech banking-access debate: Klarna Bank USA Bid Pulls Fintech Banking Into the Fire, Sony Stablecoin Bank Clears U.S. Hurdle With $40M Bet, and Agentic AI in B2B Payments.

From a 2020 application to a January 2023 denial, Custodia’s timeline shows the choke point

Custodia was founded in 2020 as Avanti Bank and became one of the first institutions chartered under Wyoming’s Special Purpose Depository Institutions regime. It sought to serve the cryptocurrency industry and applied for a master account with the Kansas City Fed that same year.

The formal rejection came in January 2023. American Banker reports that Custodia claims the denial amounted to a “death sentence” for the bank.

The court record then moved fast, at least compared with the application process:

The practical stakes are plain. A bank without direct Fed access has to rely on another institution for settlement. For crypto-focused banks, that means more dependency on traditional banking partners and less control over payment operations.

XOOMAR analysis: That dependency is the real business risk beneath the legal language. If access to a Fed master account is discretionary in practice, then a charter can become a partial license: enough to exist, not enough to operate independently.

Cook, Slaughter, and the attack on unreviewable Fed discretion

Custodia’s petition leans on two recent Supreme Court decisions: Trump v. Cook and Trump v. Slaughter. The bank says those cases raise fresh questions about where the Federal Reserve’s executive functions begin and end.

Its argument targets the Kansas City Fed president’s authority. Custodia says deciding which banks can and cannot access master accounts is an executive function, but the Kansas City Fed president is chosen by the reserve bank’s private regional board of directors, not by Congress or the executive branch.

The petition states:

“Given the Federal Reserve's unique independence from presidential control, it is particularly important for the court to ensure that the power the Fed claims to possess has in fact been authorized by Congress.”

This is the most consequential part of the filing. Custodia is not merely asking whether the Fed made the wrong call on crypto risk. It is asking whether the Fed’s regional structure can hold this much gatekeeping power without clearer congressional authorization and stronger judicial review.

The tension is obvious. The Fed’s independence is central to its role. But independence does not automatically answer whether a regional reserve bank can deny access to public payment services with little room for challenge.

Wyoming’s SPDI model put a crypto wrapper on an older access fight

Custodia’s state charter matters because the bank was built under Wyoming’s Special Purpose Depository Institutions framework. The model was designed for institutions focused on digital assets, including custody and banking services for crypto businesses.

The petition argues that the Fed’s position threatens “the continued viability of the States' historical prerogative to charter banks and regulate local banking.” That is the federalism claim. If a state can charter a bank, but a regional Fed bank can deny the account needed to connect to payment services, the state charter loses practical force.

Custodia also claims it was denied because of its cryptocurrency involvement. The Fed side, as described in the available source material, prevailed in lower courts on the view that the Kansas City Fed acted within its statutory authority.

XOOMAR analysis: This is where crypto becomes the test case for a larger access question. Digital assets gave the Fed a sharper risk rationale, but the legal principle would not stop at crypto if the Supreme Court accepts the lower courts’ approach.

Banks, regulators, crypto firms, and states read the same petition differently

Custodia’s position is direct: a legally chartered depository institution should not be blocked from Fed services by opaque discretion, especially when denial can cripple the business.

The Fed’s institutional interest points the other way. Direct access to settlement infrastructure carries risk, and the central bank has argued successfully so far that the Kansas City Fed operated within its authority when it denied the account.

State officials and crypto advocates are likely to focus on the chartering issue. If state-chartered banks cannot count on a reviewable route to Fed payment access, then federal gatekeeping can override state banking experiments without formally preempting them.

Traditional banks occupy a more complicated place. The supplied record does not give their reaction, so the only safe reading is structural: when newer banks lack direct Fed access, they remain more dependent on existing banking channels.

The next decision is whether the Supreme Court wants this Fed master account fight

If the Supreme Court takes the case, it could clarify whether regional Fed banks must apply more reviewable standards when denying a Fed master account. A ruling for Custodia could force clearer explanations and narrower discretion.

If the Court declines review, or later sides with the Fed, the Tenth Circuit outcome remains a powerful signal. Digital asset banks would have to assume that direct payment access is not guaranteed by charter status alone.

The evidence to watch is simple: whether the Court grants certiorari, and if it does, whether the justices frame the case as a crypto-risk dispute or as a constitutional and statutory fight over Fed power. The first path keeps Custodia narrow. The second could reshape how new banking models plug into the U.S. financial system.

Disclaimer: This XOOMAR analysis is for informational and educational purposes only. It is not financial, investment, legal, tax, or professional advice. It does not provide buy, sell, hold, price-target, portfolio, or personalized recommendations. Verify information independently and consult qualified professionals before making decisions.

Impact Analysis

• The case could define how much discretion regional Federal Reserve Banks have over payment-system access.
• A Supreme Court review would broaden Custodia’s fight from crypto banking into a larger question of financial gatekeeping.
• The outcome may affect novel banks that depend on direct settlement access to operate competitively.