EU Considers Bringing DeFi Lending Vaults Under MiCA Regulation

European regulators are assessing whether decentralized finance (DeFi) lending vaults should be covered by the Markets in Crypto‑Assets (MiCA) framework. The European Commission opened a consultation on May 20, 2026 to gather stakeholder input on areas that were left out of the original MiCA rules, including DeFi lending and borrowing.

Why vaults are a regulatory puzzle

DeFi lending vaults can channel billions of dollars into on‑chain credit markets while operating through multiple smart contracts and participants rather than a single legal entity. EU law currently has no specific category for a “vault,” so regulators must assess them by function. This functional approach makes it difficult to identify a single “provider” that would fall under existing lending regulations.

Case study: morpho">Morpho’s Vault V2 architecture

Morpho’s Vault V2 splits responsibilities among an owner, a curator, an allocator and a sentinel. The curator sets strategy and risk parameters, the allocator executes allocations, and the sentinel holds powers intended to mitigate risk. None of these roles clearly constitute a regulated lending service under MiCA, illustrating the challenge of mapping vault structures onto existing regulatory models.

Legal perspectives

EU digital‑assets lawyer Yuriy Brisov notes that the law is unclear because there is no statutory definition of a vault. He suggests focusing on the structural aspects of control rather than trying to fit vaults into a pre‑existing service category.

Partner Jonathan Galea warns against treating all lending vaults as a single category, arguing that they solve practical liquidity problems and that a broad label could capture structures with very different economic functions.

Curve Finance founder Michael Egorov emphasizes that DeFi lending differs from traditional finance and may require a distinct regulatory approach that balances safety with the technical realities of on‑chain protocols.

Possible regulatory paths

One option is to use the degree of decentralization as the dividing line, but critics argue this could disadvantage newer protocols that have not yet distributed control widely. Another suggestion is to explicitly add “lending and borrowing” to the list of regulated crypto‑asset services, rather than expanding the definition of a crypto‑asset service provider.

Next steps

The Commission’s consultation closes on September 30, 2026. The outcome will determine whether DeFi lending vaults remain outside MiCA or become subject to a new regulatory framework that distinguishes between different forms of on‑chain lending and the entities that control them.