The Critical Third Parties (Designation) Regulations 2026

The Treasury states that a failure in, or disruption to, the services provided by these entities could threaten the stability of, or confidence in, the UK financial system.

The document asserts that the Treasury complied with statutory requirements by consulting the Financial Conduct Authority, the Prudential Regulation Authority, and the Bank of England.

The Treasury notes that it provided written notice to the designated entities and allowed a reasonable period for those persons to make representations.

Proponents may argue that identifying these specific service providers allows for more robust oversight of systemic risks in the financial sector's supply chain.

Legal scholars may question the criteria used to determine whether a disruption to these specific entities constitutes a threat to financial stability compared to other non-designated providers.

Affected parties might argue that the designation imposes an unequal regulatory burden on these four specific entities relative to their competitors.

Critics may point out that the Treasury did not produce a full impact assessment, claiming no significant impact is foreseen, which may be contested by agencies facing new compliance or oversight costs.

There may be concerns regarding the cross-border legal complexities since several designated entities (e.g., those based in Ireland or Luxembourg) are managed outside the UK's immediate jurisdiction while serving the UK financial system.