Block, the fintech and crypto infrastructure company led by Jack Dorsey, has filed an application with the Office of the Comptroller of the Currency (OCC) for a national bank charter — not to build a conventional lending institution, but to establish what could become one of the first federally supervised crypto custody banks in the United States. The proposed entity, called Builders Bank, would hold Bitcoin and stablecoins on behalf of clients under direct federal oversight, without accepting deposits or extending loans. The application is pending OCC approval, and its outcome could set a meaningful precedent for how the U.S. financial regulatory apparatus treats purpose-built digital asset custody institutions.
A Bank That Isn't Really a Bank
Builders Bank is, by design, a narrow institution. It would not function like a traditional commercial bank. There are no checking accounts, no savings deposits, no mortgage desks. What Block is proposing is a federally chartered custodian — an entity that safeguards Bitcoin and stablecoin holdings under the direct supervision of the OCC, one of the most authoritative banking regulators in the country. Because it would not take deposits, Builders Bank would also forgo Federal Deposit Insurance Corporation (FDIC) insurance, making it explicitly uninsured in the traditional banking sense.
That combination — federal charter, no deposits, no loans, no insurance — is unusual enough to raise immediate questions about what regulatory category Builders Bank actually occupies and what protections customers would realistically have. Block's bet appears to be that institutional and sophisticated clients custody digital assets not because they want FDIC protection, but because they want regulatory legitimacy, clear legal frameworks, and the operational credibility that comes with federal oversight. In that framing, the OCC charter is less about deposit safety nets and more about institutional trust infrastructure.
Why the OCC Route Matters
The OCC has been a quiet but consequential actor in the crypto custody space for several years. Under prior administrations, the regulator issued interpretive letters permitting national banks to hold cryptocurrency on behalf of customers and, later, to hold reserves backing stablecoins. What Block is pursuing goes further — a purpose-built charter for an entity whose entire reason for existing is crypto custody, not crypto as an add-on service to a broader banking franchise.
If approved, Builders Bank would sit under direct federal supervision rather than a patchwork of state-level money transmission licenses, which has historically been the dominant regulatory model for crypto custody firms. That distinction is significant. State licensing regimes vary enormously in their rigor, their capital requirements, and their examination standards. A national OCC charter would subject Builders Bank to uniform federal standards, regular examinations, and the full weight of the OCC's supervisory apparatus — a framework that institutional counterparties, particularly those operating under their own regulatory obligations, would likely find more legible and trustworthy than a collection of state approvals.
Stablecoins in the Frame
The inclusion of stablecoin custody in Builders Bank's proposed mandate is particularly timely. As U.S. legislators continue to work toward a federal stablecoin framework, questions about who is qualified to custody stablecoin reserves and issued tokens have moved to the center of the policy debate. A federally chartered, OCC-supervised custody bank with an explicit stablecoin mandate would position Block squarely within whatever regulatory architecture ultimately emerges — and would give Builders Bank a structural advantage over competitors still operating at the state level when institutions begin selecting regulated custody partners for compliant stablecoin operations.
Block already has substantial infrastructure in the digital asset space through its Cash App product and its Bitcoin-focused hardware and software initiatives. Builders Bank, if chartered, would represent a significant institutional escalation — moving from consumer-facing crypto services toward the back-end custody infrastructure that financial institutions, corporates, and asset managers require to engage with digital assets in a regulated capacity.
What Still Has to Happen
The application is just that — an application. OCC charter processes are neither fast nor guaranteed. The regulator will scrutinize Builders Bank's proposed business model, its capital adequacy, its risk management frameworks, its anti-money laundering and know-your-customer controls, and the overall fitness of Block as a charter applicant. Given that the proposed entity is explicitly uninsured and holds volatile digital assets, the OCC's due diligence will likely probe the custody technology stack and the safeguards Block proposes to protect client holdings in the event of operational failure, hacks, or market stress events.
There is also a broader political dimension. OCC charter applications for crypto-native firms have historically attracted scrutiny from traditional banking lobbies protective of their regulatory perimeter, as well as from lawmakers skeptical of extending federal legitimacy to digital asset businesses. Block will need to navigate that landscape carefully while the application works its way through the OCC's review process.
Regardless of outcome, the filing signals that serious, well-resourced fintech companies are no longer content to operate crypto custody services through regulatory workarounds. Block is explicitly seeking the highest available tier of federal legitimacy for Builders Bank, and the OCC's response will tell the broader market a great deal about how accommodating the U.S. federal banking framework is prepared to be for institutions built entirely around digital asset infrastructure.
Written by the editorial team — independent journalism powered by Bitcoin News.