On January 23, 2025, the Securities and Exchange Commission published Staff Accounting Bulletin No. 122, formally rescinding the controversial SAB 121 guidance that had governed crypto asset custody accounting since March 2022. The timing—coinciding with President Trump’s executive order on digital financial technology—signals a coordinated regulatory shift with profound implications for institutional crypto adoption, banking infrastructure, and the competitive dynamics between traditional finance and native crypto platforms. This guide provides a technical and strategic analysis of what changed, why it matters, and how sophisticated market participants should position themselves.
The Objective
SAB 121, originally issued under Chair Gary Gensler, required entities custodying crypto assets on behalf of clients to record those assets as liabilities on their balance sheets, with corresponding assets held against them. This treatment was unprecedented—traditional securities custody does not require balance sheet recognition of client assets, because custodians do not bear the economic risk of the assets they hold. By imposing this requirement on crypto, the SEC effectively penalized banks for offering crypto custody services.
The practical impact was immediate and severe. Major banks including BNY Mellon and several others that had announced plans to offer crypto custody services either paused or abandoned those initiatives. The capital requirements made crypto custody economically unviable for most traditional financial institutions, leaving the market to specialized crypto firms like Coinbase, BitGo, and Anchorage.
SAB 122 removes this barrier. Under the new guidance, entities custodying crypto assets apply existing ASC topics—specifically ASC 405-20 for obligations and ASC 810 for consolidation—rather than the crypto-specific overlay that SAB 121 imposed. In practical terms, crypto custody can now be accounted for similarly to traditional asset custody, dramatically reducing the capital burden on institutions that want to offer these services.
Prerequisites
Understanding the full implications of this change requires familiarity with several concepts. First, the distinction between custodial and non-custodial services: custodial platforms hold private keys on behalf of clients, while non-custodial platforms allow clients to maintain control of their own keys. SAB 121 primarily affected custodial arrangements.
Second, the concept of regulatory capital requirements: banks must hold capital against liabilities on their balance sheets, with the amount determined by risk-weighted asset calculations. By forcing crypto assets onto balance sheets as liabilities, SAB 121 dramatically increased the capital banks needed to hold, making crypto custody disproportionately expensive.
Third, the competitive landscape: with banks effectively blocked from crypto custody, a ecosystem of specialized crypto custodians emerged, charging premium fees for services that traditional custodians could have offered at lower cost. The removal of SAB 121 threatens to disrupt this dynamic.
Step-by-Step Walkthrough
Step 1: Assess the institutional opportunity. With the capital barrier removed, expect major banks to announce crypto custody offerings within months. BNY Mellon, which previously paused its crypto custody plans, is the most likely first mover given its existing infrastructure and client base. JPMorgan and Goldman Sachs, both of which have expressed interest in crypto services, may follow. For portfolio managers, this means crypto custody costs are likely to decrease as competition intensifies.
Step 2: Evaluate the risk transfer. Moving crypto custody from specialized firms to traditional banks involves a different risk profile. Traditional custodians offer different insurance, regulatory protections, and bankruptcy remoteness structures than crypto-native firms. Investors should understand that FDIC insurance does not cover crypto assets, and SIPC protection is limited to securities—meaning the legal protections for crypto custody remain distinct from traditional asset custody despite the accounting convergence.
Step 3: Monitor the SEC crypto taskforce. Commissioner Hester Peirce is leading a new SEC taskforce that will develop specific guidance for crypto markets. The taskforce’s recommendations on custody standards, proof-of-reserves requirements, and audit frameworks will determine the practical requirements that banks must meet when offering crypto services. These details matter more than the headline change.
Step 4: Reassess your custody strategy. For institutions currently using crypto-native custodians, the competitive landscape shift may create opportunities to negotiate better terms or diversify custody arrangements. For individuals holding significant crypto assets, the expansion of institutional custody options could simplify estate planning, tax reporting, and security management.
Troubleshooting
Several complications may arise in the transition. First, SAB 122 does not address all regulatory uncertainty surrounding crypto custody. State banking regulators, the OCC, and international standard-setters each have their own requirements that may not align with the SEC’s new posture. Institutions entering the crypto custody space will need to navigate a patchwork of overlapping regulations.
Second, accounting convergence does not equal operational readiness. Banks need to build or acquire the technical infrastructure to securely manage cryptographic keys, interact with blockchain networks, and handle the unique operational requirements of crypto assets. This buildout takes time and expertise that many traditional institutions currently lack.
Third, the competitive response from crypto-native custodians should not be underestimated. Companies like Coinbase and BitGo have spent years building custody infrastructure, regulatory relationships, and client trust. They will not cede market share without competing on price, service quality, and innovation.
Mastering the Skill
The end of SAB 121 marks a genuine inflection point in the institutional adoption of cryptocurrencies. For the first time, banks can offer crypto custody without facing accounting penalties that make the service economically unviable. The convergence of this regulatory change with Trump’s executive order promoting blockchain access and the establishment of the SEC’s crypto taskforce suggests a coordinated, multi-agency approach to integrating crypto into the traditional financial system.
Sophisticated market participants should position for a transitional period during which custody options expand rapidly but standards and best practices continue to evolve. Diversifying custody across multiple providers—both traditional and crypto-native—reduces concentration risk. Staying engaged with regulatory developments through the SEC taskforce, congressional legislation, and international coordination bodies will be essential for maintaining a competitive edge in this rapidly evolving landscape.
Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Always conduct your own research before making any financial decisions.
Francis D. exactly. Trump EO plus SAB 122 is a two-step that unravels the moment the administration changes. need actual law
SAB 121 was the single biggest regulatory barrier for institutional custody. removing it changes the game for banks looking at crypto
bal_sheet_ SAB 121 forced custodians to put client crypto on their own balance sheet. no bank was going to do that with BTC at 100k volatility
removing SAB 121 was step one. now the question is whether banks actually want to custody crypto or if they were just using the regulation as an excuse to wait
banks were never going to custody btc while it sat on their balance sheet. the accounting overhead alone killed the business case. now the real question is who moves first
compliance_hat_ banks moving first will be BNY or State Street, not JPM. the custody specialists have been waiting for this since 2022
greg_n BNY and State Street positioning first makes sense. they already custody trillions in traditional securities so the operational gap is smallest for them
Jasper Klein BNY and State Street make sense as first movers. they already custody trillions in traditional securities so the operational gap for crypto is smallest for them
The timing with Trump’s EO is no coincidence. Gensler’s entire framework is being dismantled piece by piece.
and not a moment too soon. forcing custodians to put client assets on their balance sheet was a solution looking for a problem
the liability treatment made zero sense. you dont put client stocks on a bank balance sheet, why treat BTC different
Tanya R. the comparison to securities custody misses one thing. crypto private keys can be copied silently. the balance sheet treatment was paranoid but not irrational
the key copying risk Akira mentioned is real but cold storage multisig exists. SAB 121 was never about security, it was a gatekeep
akira has a point about keys being copyable but every custody innovation carries operational risk. the SAB 121 removal at least removes the capital penalty that was keeping banks on the sidelines
the concern about keys being silently copied is real but cold storage with multisig solves that. the SAB 121 balance sheet penalty was never about key risk
Mikael S. cold storage multisig solves the key copying risk but the SAB 121 balance sheet penalty was never about security. it was about keeping banks out
Hans G. the timing with Trumps EO was not coincidence, it was coordinated. Genslers entire framework getting dismantled piece by piece but nothing replacing it structurally
dismantling Gensler era rules by executive order feels fragile. one election and this all gets reversed again. need actual legislation not just policy churn
rescinding SAB 121 by bulletin instead of legislation means the next Gensler-type can bring it back on day one. fragile
Petra N. nailed it, executive orders are reversible. until we get actual legislation like the CLARITY Act passed, SAB 121 could come back with the next admin
rule_writer_ CLARITY Act would lock this in permanently. until then BNY and State Street positioning first is smart because they get the headstart while the EO still holds
Petra N. exactly. you dont put client stocks on a bank balance sheet. treating BTC custody differently was always a solution looking for a problem
Banking implications from ending SAB 121 will boost institutional adoption after the January 2025 order.
rescinding SAB 121 via executive order is fragile legislation. one administration flips and we are back to square one. need actual laws not policy reversals
SAB 121 end on January 23, 2025 via Trump’s order changes custody accounting for institutions.