What happened?
Block, the parent company of payment brands such as Square and Cash App, announced on September 8 that it had filed an application with the U.S. regulator OCC (Office of the Comptroller of the Currency, the federal agency overseeing national banks) to create a new institution called Builders Bank Trust, N.A. The news was reported by The Defiant.
If the agency approves the application, it would create an uninsured national trust bank under direct federal supervision. According to Block, the new bank would provide custody (third-party safekeeping of assets) and related fiduciary services, explicitly including for bitcoin and stablecoins.
What do "uninsured" and "trust" bank mean?
It is worth distinguishing two terms right at the start:
- Uninsured means that deposits would not be covered by the federal deposit insurer, the FDIC. This is common for institutions that focus on the custody and administration of assets rather than the classic acceptance of insured deposits.
- A national trust bank is an entity licensed and supervised federally through the OCC, not through individual states.
The difference from the current situation lies precisely in that word "federally."
Why is Block pursuing this?
According to Decrypt, Builders Bank would consolidate the custody activity that Block currently operates under more than 50 state money transmitter licenses. Instead of a patchwork of permits across individual states, the firm would gain a single federal framework.
That is the main rationale the sources cite: consolidating fragmented state licensing into a single supervisory regime. Whether this will lower Block's costs, speed up its products, or both, the sources do not explicitly quantify.
What is confirmed so far and what is not
Confirmed is that the application has been filed and how the institution is meant to look according to Block. Nothing about the outcome is confirmed: the OCC is still reviewing the application, and neither approval nor its timing is set. A regulator's decision is a process, not an announcement.
Likewise, the sources do not state a specific launch date, capital requirements, or a final list of products.
What to watch for with this type of event
With bank charter applications, it usually pays over time to watch three things that can later be verified:
| What to watch | Why it matters |
|---|---|
| The OCC decision (approved / rejected / with conditions) | Determines whether the project comes into existence at all |
| The scope of permitted activities in any decision | Shows exactly what the bank may do with bitcoin and stablecoins |
| The fate of the existing state licenses | Indicates whether this is truly a consolidation |
Once these points are known, they can be compared with what Block announced when filing the application.
Summary
Block has taken a formal step toward a federally supervised custody bank for bitcoin and stablecoins. That is a fact. Everything else, namely whether the bank comes into existence and to what extent it will operate, still lies on the regulator's side and remains unconfirmed for now.

