A little-known 1,250% rule could lock US banks out of Bitcoin – Crypto News – Crypto News
Connect with us
Gino Matos Gino Matos

Cryptocurrency

A little-known 1,250% rule could lock US banks out of Bitcoin – Crypto News

Published

2 months ago

on

A group of Republican senators is warning US bank regulators that a little-known capital rule could effectively keep banks out of Bitcoin, even as Congress moves to give traditional financial firms a larger role in digital asset markets.

In a May 27 letter to Federal Reserve Vice Chair for Supervision Michelle Bowman, FDIC Chair Travis Hill, and Comptroller of the Currency Jonathan Gould, six senators urged the agencies to build a new capital framework for on-balance-sheet digital asset activities.

Their target is Basel’s 1,250% risk weight for assets such as Bitcoin, which they argue functions as a de facto ban on banks holding crypto.

A 1,250% risk weight multiplied by the 8% minimum capital requirement equals a 100% capital allocation, meaning a bank holding $100 million in Bitcoin needs at least $100 million in capital against it.

For banks that manage to meet internal CET1 targets above the regulatory floor, the burden climbs further. A bank with a 12% internal capital target would need $150 million in capital for that same $100 million exposure, requiring roughly $18 million in annual net profit to clear a 12% ROE hurdle.

Normal custody, trading, or client-service economics rarely generate returns at that threshold, leaving a bank legally authorized to hold Bitcoin but financially unable to justify doing so.

How the Basel rule turns Bitcoin into a bigger management issue
A bar chart shows Basel’s 1,250% risk weight forcing $100 million in Bitcoin exposure to require between $100 million and $150 million in capital.

Why this lands now

The Senate Banking Committee advanced the CLARITY Act on May 14 by a 15-9 vote, sending it to the Senate floor.

If passed, the bill would give banks a clearer statutory role in digital asset markets, but the senators argue that legislative permission without capital efficiency leaves banks holding a permission slip they cannot afford to use. A bank can be legally authorized to hold Bitcoin and still be structurally prevented from doing so by a capital charge that makes the position uneconomic before the first trade.

The three regulators the letter addresses have each moved toward crypto permissiveness since early 2025.

The OCC reaffirmed in March 2025 that national banks may engage in crypto custody, stablecoin-related activities, and distributed-ledger payment functions, while removing the prior supervisory non-objection requirement.

The FDIC followed that same month, rescinding its notification requirement and allowing FDIC-supervised institutions to pursue permissible crypto activities without prior approval.

The Fed withdrew its guidance on crypto assets and dollar tokens in April 2025, framing the move as support for innovation.

All three agencies opened the door to crypto activity and left the Bitcoin capital question untouched.
The senators found their sharpest argumentative foothold in a March 2026 interagency FAQ on tokenized securities.

Regulator Recent crypto-friendly move What it allowed or eased What remains unresolved
OCC March 2025 guidance Crypto custody, stablecoin activity, DLT payments; removed non-objection requirement Capital treatment for bank-held Bitcoin
FDIC March 2025 guidance Permissible crypto activities without prior FDIC approval Capital treatment for direct crypto exposure
Fed April 2025 withdrawal Pulled prior crypto/dollar-token guidance Capital treatment for on-balance-sheet Bitcoin
Fed / FDIC / OCC March 2026 FAQ Tokenized securities generally treated like underlying securities Whether that logic applies to native cryptoassets

The joint guidance from the Fed, FDIC, and OCC held that eligible tokenized securities should generally receive the same capital treatment as their non-tokenized equivalents, and that the technology used to record or transfer ownership should not determine capital allocation.

If a tokenized Treasury is treated like a Treasury because the underlying risk profile governs its treatment, the logic should extend to Bitcoin, and the asset’s volatility and operational risks are measurable and can support a calibrated framework.

The March 2026 guidance covers eligible tokenized securities, and the senators are pressing regulators to carry the same technology-neutral logic forward to native digital assets.

The prudential case for the rule

The Fed, FDIC, and OCC’s 2023 joint statement noted price volatility, legal uncertainty regarding custody and ownership rights, contagion from exchange and counterparty failures, governance weaknesses in crypto networks, and operational risks associated with open or decentralized infrastructure.

The Basel standard was built around those risks after the 2022 crypto collapse exposed how quickly losses could spread to interconnected institutions.

A dollar-for-dollar capital charge reflects a genuine judgment that Bitcoin’s risk profile does not resemble the assets that populate traditional bank balance sheets.

CryptoSlate Daily Brief

Daily signals, zero noise.

Market-moving headlines and context delivered every morning in one tight read.