United Kingdom

Europe ⋅ OECD Member ⋅ Fully Adopted and Final Rules

new account self-certification collection start on

1 January 2026

first reportable year

2026

FIRST filing DEADLINE

31 May 2027

REGISTRATION DEADLINE

1 January 2027

Due Diligence Standards

Self-Cert Collection - New Accounts

Must be obtained upon establishing the relationship

Self-Cert Collection - Pre-existing Accounts

Must be collected by 31 December 2026

Record Retention Period

5 years

Local Information Collection and Reporting Requirements

Information Collection Requirements: For UK users, the following TINs are expected to adhere to local format:

- Individuals - National Insurance Number (NINO)
- Companies/LLPs - Company Registration Number (CRN)
- Partnerships/Trusts - Unique Taxpayer Reference (UTR)
- Limited liability partnerships (LLPs) - CRN

Penalty Framework

The UK provides Extensive Penalty information on their webpage IEIM8000620 - Overview of penalties.
Penalties range from £100 per reportable user or person for due diligence, reporting, or notification failures, £300 per reportable user for which transactions continue where no self-cert obtained after deadline, up to £5,000 for serious breaches such as late reporting, record-keeping failures, or failure to provide information, with daily continuing penalties of up to £600 per day where non-compliance persists.

Effortless CARF Compliance

Questions around jurisdiction-specific CARF compliance?

Service providers who are likely in scope of the CARF reporting requirements are invited to get in touch with Taxbit for further information.

Our team of compliance experts can help walk through your jurisdiction-specific reporting requirements and best practices for operational readiness.

Jurisdiction Selector

See how CARF implementation varies across jurisdictions

United Kingdom

United Kingdom

Jurisdiction Overview

Official Sources

Questions around jurisdiction-specific CARF compliance?

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