Block asks the OCC to supervise a custody business it already runs

A national trust bank that takes no deposits and writes no loans cannot earn a spread, so every dollar Builders Bank ever books would come from fees charged for holding Bitcoin, stablecoins and similar assets on someone else's behalf ^[2][3][16]. That is a different animal from the industrial bank Block has run since 2021 through Square Financial Services ^[8]. crypto.news has reported that trust structures of this kind can also take on stablecoin reserve management while staying outside the deposit-taking model ^[19], which is where the fee pool gets interesting, and where the OCC's conditions will decide how large it is allowed to be.

The custody activities named in the application are ones Block already offers ^[4]. Approval would put a federal examiner over a line Block already runs ^[17]. Block's own framing is that a federal charter establishes consistent supervision for certain custody and related activities as those operations scale ^[14], which is a statement about what counterparties will accept rather than about what Block can technically do today.

Lee Woolley, who would be president and chief executive, comes to it from Northern Trust, BNY Mellon and a credit union chief executive seat ^[6], and cited Block's digital asset experience alongside its history with Square Financial Services in explaining the fit ^[7]. The announcement as reported does not name an initial capital figure, a target opening date, or a reason the work is going into a new charter rather than the one Block already holds ^[18]. An industrial bank and a national trust bank simply carry different permissions.

Then there is the clock. Forty de novo charter applications across an eighteen-month window is roughly 2.2 a month arriving at an agency that must examine each one individually ^[10][15], and Comptroller Jonathan Gould's August position that digital asset firms doing legally permissible things should have access to the national banking system ^[9] buys applicants a place in that line.

If large institutions genuinely will not place assets without a federal examiner to point at, custody balances compound faster after approval than before and the build pays for itself. Or the OCC grants the charter with conditions narrow enough that the permitted fee base is thinner than the cost of standing up a bank and staffing it. The dullest possibility, and the one this desk would weight highest, is that the customers who wanted Block to hold their Bitcoin were already getting it ^[4], and the charter is insurance on revenue that exists rather than a claim on revenue that does not. What would falsify that: custody balances and fee income that visibly step up in the year after approval. What would confirm it: a charter granted, and an income statement that looks the same.