companies house acsp aml compliance accounting

Companies House ACSP Deadline: Accountants Must Register Before October 2026

Companies House has set an October 2026 deadline for accountants and tax advisers performing anti-money laundering (AML) supervised activities to register as Authorised Corporate Service Providers (ACSPs). Firms that miss this deadline will not be able to file on behalf of clients via the new Companies House online service.

Published 10 June 2026 · Source: Companies House / GOV.UK

What is an ACSP?

An Authorised Corporate Service Provider (ACSP) is the new designation under the Economic Crime and Corporate Transparency Act 2023 for professionals who file information at Companies House on behalf of clients, including company formations, confirmation statements, and officer changes. To become an ACSP, the firm must be supervised for AML purposes by an approved supervisory authority (FCA, ICAEW, AAT, ACCA, etc.).

Why does this matter?

From October 2026, only registered ACSPs will be able to use the new Companies House online filing service for client filings. Firms not registered will revert to paper filing, which is significantly slower and more error-prone, and may affect client service quality.

Who needs to register?

Any accounting firm, tax adviser, or company formation agent that files at Companies House on behalf of clients and is supervised for AML purposes must register. Registration is via the Companies House ACSP portal using the firm's AML supervisor details.

Beacon & Ledger's status

Beacon & Ledger Consulting Ltd is AAT-supervised for AML purposes and is ACSP-authorised. We continue to file on behalf of clients without interruption.

What you should check

  • Confirm your AML supervisor has you on their register
  • Register at gov.uk ACSP registration before October 2026
  • Update your Companies House contact email and firm details

If you use an accountant to file at Companies House, check with them that they are ACSP-registered. Contact Beacon & Ledger if you have questions about your filings.