OCC permits US banks to hold native cryptocurrency tokens for blockchain gas fees

The Office of the Comptroller of the Currency (OCC) has issued a significant clarification permitting national banks to hold native cryptocurrency assets on their balance sheets specifically to pay blockchain network fees, commonly known as “gas fees.” This development, formalised in Interpretive Letter 1186, addresses a longstanding operational barrier faced by banks wanting to engage directly in blockchain-based services such as token custody and stablecoin transactions on public networks like Ethereum.

Previously, banks desiring to participate in on-chain activities found themselves constrained by the inability to hold the native tokens required to settle transaction fees. Without native tokens, such as ETH on the Ethereum network, a bank could not directly pay for network fees, forcing many to rely on third-party providers or avoid blockchain involvement altogether. The OCC’s new letter explicitly states that national banks may hold crypto assets “as principal” when there is a “reasonably foreseeable operational need” to cover these blockchain network fees, thereby removing the necessity for external intermediaries.

This clarification builds on earlier regulatory shifts initiated by the OCC, particularly the March 2025 pivot that relaxed previous guidance mandating prior approval for crypto-related activities. That pivot opened the door for banks to engage in custody services, stablecoin activities, and other distributed-ledger operations without pre-clearance, provided these activities complied with standard risk management frameworks. Interpretive Letter 1186 zooms in on the critical operational detail of on-chain fee payment, affirming that if operating as a node on a blockchain network is permitted, then holding and using the native token for network fees must also be permissible to avoid practical exclusion from lawful activities.

The OCC also permits banks to maintain limited inventories of native tokens to test crypto-asset platforms, whether developed internally or sourced from third parties. This enables banks to trial functionalities securely before committing client funds or their own balance-sheet capital to full production deployments. Importantly, the guidance stresses that holdings are confined to operational requirements. Banks must restrict these crypto balances to the amounts necessary for expected transaction volumes and platform testing, prohibiting speculative positions or the treatment of these tokens as investment assets.

For banks involved in custody operations or managing stablecoin programs, especially those compliant with the GENIUS Act framework, this development simplifies multiple aspects of their business. Bringing gas fee management in-house can reduce counterparty risk and operational complexity, shorten transaction execution timelines, and eliminate reliance on fintech intermediaries who may face liquidity strains during network congestion or market volatility. It also positions national banks to compete more effectively against crypto-native custodians that have long held native tokens as part of their operational infrastructure.

Nevertheless, regulatory constraints remain notable. The OCC underscores that all crypto-related activities must be conducted in a “safe and sound” manner and comply fully with existing legal requirements, including market, liquidity, operational, cybersecurity, and anti-money laundering controls. Moreover, this permissive stance applies only to national banks regulated by the OCC. Meanwhile, the Federal Reserve’s separate policy statement continues to classify holding crypto as principal by state member banks as “unsafe and unsound,” creating a regulatory divide. This discrepancy could foster a two-tier banking system where charter type and regulator determine a bank’s ability to hold native tokens for blockchain fees, potentially incentivising institutions seeking on-chain capabilities to pursue national charters.

Additionally, banks must navigate the inherent price volatility of native tokens like ETH. Because these tokens fluctuate in value, banks face the challenge of maintaining sufficient balances to meet transaction needs without exposing themselves to excessive speculative risk. The OCC’s “reasonably foreseeable operational need” criterion implicitly advises conservative sizing of crypto inventories to balance adequacy against risk management concerns.

Overall, Interpretive Letter 1186 represents a pivotal moment in the integration of traditional banking with blockchain technology. By permitting banks to hold native tokens to pay operational fees, the OCC has effectively removed the last major technical obstruction to full-stack on-chain banking services. This regulatory clarity is expected to encourage national banks with tokenisation, custody, or stablecoin programs to internalise gas fee management within the coming year, thereby consolidating more of the cryptocurrency service stack within regulated institutions.

Looking ahead, this decision may set an important precedent for future regulatory approaches to other operational necessities involving native tokens, such as staking for proof-of-stake blockchains or liquidity provisioning in decentralized finance, that sound regulated banks might engage with. However, whether this OCC policy evolves into broader regulatory harmonisation across US banking authorities remains uncertain. The current fragmented stance could influence the strategic decisions of financial institutions about their regulatory affiliations and their capacity to participate fully in the emerging on-chain economy.

In summary, the OCC’s guidance affirms that national banks can hold cryptocurrency tokens purely as operational inventory to pay network fees, marking a crucial step in modernising banking infrastructure to accommodate blockchain technology. While challenges remain, this development is poised to streamline and expand the role of regulated banks in the digital asset space, balancing innovation with prudential oversight.