Key Takeaways
- • The SEC clarified broker-dealer custody rules for crypto assets on December 17, 2025, establishing standardized safekeeping standards that apply existing regulatory frameworks to digital asset holdings.
- • Federal regulators, including the SEC and New York Department of Financial Services (NYDFS), jointly released guidance clarifying how banks and qualified custodians must safeguard crypto assets, with custodians restricted to possession-only activities for custody and safekeeping purposes.
- • The SEC rescinded Staff Accounting Bulletin 121 in January 2025, restoring banks' ability to apply proven safeguards to crypto custody operations and improving the overall custody framework for digital assets.
- • State trust companies received clarity through SEC no-action letters on their authority to serve as qualified custodians for digital assets, addressing a longstanding gap in custody infrastructure.
- • The revised standards apply existing risk management and safe-and-sound principles to crypto-asset custody activities, including requirements for sub-custodian arrangements and safekeeping protocols.
Summary
The U.S. Securities and Exchange Commission has implemented revised custody rules for cryptocurrency assets, establishing clearer safekeeping standards that align digital asset regulation with existing broker-dealer frameworks. On December 17, 2025, the SEC's Division of Trading and Markets published a statement detailing how custody regulations apply to crypto assets, providing institutional investors and financial institutions with explicit guidance on compliance requirements and permissible activities.
The regulatory clarification represents a coordinated effort across federal agencies. Federal banking regulators, the SEC, and the New York Department of Financial Services jointly released guidance specifying that banks and custodians engaging in crypto-asset safekeeping must conduct activities in a safe and sound manner. Notably, the NYDFS expects custodians to limit their role to possession and safekeeping of customer virtual currency, prohibiting additional activities that would expand beyond custodial scope.
A significant regulatory development preceded this clarification: the SEC rescinded Staff Accounting Bulletin 121 in January 2025, restoring banks' ability to apply proven safeguards to crypto custody operations. This action addressed industry concerns and restored confidence in banking sector participation in digital asset custody. Additionally, the SEC issued no-action letters clarifying that state trust companies can serve as qualified custodians for digital assets, resolving infrastructure gaps that had previously limited custody options for institutional participants.
The revised framework addresses sub-custodian arrangements and requires that safekeeping and accessibility of crypto asset securities be maintained even when intermediary custodians are engaged. These standards apply existing regulatory principles and risk management practices to the digital asset context, creating consistency with traditional securities custody frameworks while accounting for the unique operational characteristics of blockchain-based assets. The guidance provides institutional investors, hedge funds, and family offices with regulatory certainty regarding custody arrangements and counterparty safekeeping obligations.
The regulatory clarification represents a coordinated effort across federal agencies. Federal banking regulators, the SEC, and the New York Department of Financial Services jointly released guidance specifying that banks and custodians engaging in crypto-asset safekeeping must conduct activities in a safe and sound manner. Notably, the NYDFS expects custodians to limit their role to possession and safekeeping of customer virtual currency, prohibiting additional activities that would expand beyond custodial scope.
A significant regulatory development preceded this clarification: the SEC rescinded Staff Accounting Bulletin 121 in January 2025, restoring banks' ability to apply proven safeguards to crypto custody operations. This action addressed industry concerns and restored confidence in banking sector participation in digital asset custody. Additionally, the SEC issued no-action letters clarifying that state trust companies can serve as qualified custodians for digital assets, resolving infrastructure gaps that had previously limited custody options for institutional participants.
The revised framework addresses sub-custodian arrangements and requires that safekeeping and accessibility of crypto asset securities be maintained even when intermediary custodians are engaged. These standards apply existing regulatory principles and risk management practices to the digital asset context, creating consistency with traditional securities custody frameworks while accounting for the unique operational characteristics of blockchain-based assets. The guidance provides institutional investors, hedge funds, and family offices with regulatory certainty regarding custody arrangements and counterparty safekeeping obligations.
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