U.S. OCC Verifies Banks Can Trade and Provide Crypto Custody Using Third Parties

Key Takeaways:

• Banks can now trade crypto for customers under the customer’s direction, according to the OCC.
• Outsourcing to third-party crypto service providers is permitted with proper risk management.
• Custody services may include trade execution, tax reporting, and fiat-crypto exchange activities.

On May 7, 2025, the U.S. Office of the Comptroller of the Currency (OCC) released an official interpretive letter verifying that federal savings institutions and national banks are allowed to provide cryptocurrency custody services and execute trades for individuals. This development is a major regulatory confirmation that opens the door for banks to expand their digital asset offerings—either directly or through approved third-party suppliers.

Read More: SEC’s Crypto Custody Roundtable: Digital Asset Safekeeping Future in the Limelight

In Interpretive Letter #1184, the OCC confirmed that U.S. banks under federal jurisdiction may offer crypto-related services traditionally reserved for digital asset firms. These services comprise the execution of buy and sell orders and the custody of cryptocurrencies—but only when acting on direct instructions from the consumer.

This affirmation adds on past advice, especially Interpretive Letters 1170 and 1183, which had already covered the more general extent of crypto custody. The OCC underlined that giving custody for crypto assets is only a contemporary equivalent of conventional custodial banking services.

Importantly, the letter reinforced that:

• Depending on the type of their relationship with the consumer, banks could function in either fiduciary or non-fiduciary capacity.
• Bank crypto custody is acknowledged as falling under allowable banking activities under present U.S. law.

Read More: BlackRock Engages Anchorage Digital to Enhance Crypto Custody and Tokenized Asset Infrastructure

Banks, the OCC stated, can delegate execution services and crypto custody to third-party sub-custodians. Especially for organizations without in-house cryptocurrency infrastructure, this action provides operational freedom.

However, this delegation comes with conditions. Banks are required to:

• Maintain oversight and ensure that any third-party or sub-custodian has adequate internal controls.
• Follow established third-party risk management practices, especially those designed to protect client assets.

Banks must also continue to meet existing regulatory obligations under parts 9 or 150 of Title 12 of the Code of Federal Regulations when acting in a fiduciary capacity.

Under the OCC’s interpretation, the list of permissible crypto services extends beyond simple asset storage. Banks are now permitted to offer:

• Trade execution services (buying/selling assets at the customer’s request)
• Fiat-to-crypto and crypto-to-fiat exchange facilitation
• Transaction settlement
• Recordkeeping, valuation, tax, and reporting services

The OCC views these services as an extension of a bank’s traditional custodial role, adapted to the evolving needs of digital finance. The decision is aligned with a broader legal perspective, supported by precedent such as M & M Leasing Corp. v. Seattle First Nat. Bank, where the court acknowledged that banking powers must adapt to technological advancements.

This new guidance sends a strong signal that federal regulators are creating a clearer framework for traditional banks to safely engage in the crypto economy. It may also reduce the reliance of U.S. customers on standalone crypto platforms by integrating digital asset services into mainstream financial institutions.

From a compliance standpoint, banks must still:

• Ensure all crypto-related activities are carried out in a safe and sound manner
• Maintain strict adherence to customer agreements and applicable laws

Banks will not be allowed to freely speculate with customer-held assets. All trading and custody operations must be executed at the customer’s direction, reflecting a non-speculative, service-based model.

Although the OCC’s letter does not add new rules, it explains the current legal range for federally chartered banks to engage in the cryptocurrency industry. This action is likely to raise institutional interest in digital assets and might greatly increase rivalry between crypto-native companies and conventional banks.

With this guidance now in place, more banks are likely to:

• Integrate crypto custody services into their core offerings
• Partner with established crypto custodians and infrastructure providers
• Explore revenue opportunities through regulated digital asset services

At the same time, it underscores the need for robust risk controls and operational due diligence—especially when dealing with volatile crypto markets and outsourced service layers.

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