Key Points
- Companies House issued 983,000 non-compliance letters between November 2025 and May 2026 over identity verification failures
- Around 5.5 million companies are currently on the UK register, highlighting the scale of non-compliance concerns
- Approximately 183,000 controlling shareholders are in default of new identity verification requirements
- The reforms stem from the Economic Crime and Corporate Transparency Act 2023 (ECTA)
- Full enforcement powers are expected to take effect from November 2026 after a transitional period
- Companies House has already removed 145,000 registered office addresses and 115,000 officers’ addresses suspected of misuse
- The Insolvency Service has opened 19 investigations following referrals linked to suspected illicit activity
- Reform aims to improve the UK’s corporate transparency and reduce misuse of company structures for financial crime
What is driving Companies House’s identity verification crackdown under new UK law?
The UK’s corporate registry is undergoing one of the most significant reforms in its history following the introduction of the Economic Crime and Corporate Transparency Act 2023 (ECTA). The legislation is designed to strengthen the integrity of company data held at Companies House and reduce the risk of fraud, money laundering, and identity misuse.
Under the new framework, Companies House has gained powers to require identity verification for company directors, persons with significant control (PSCs), and certain other corporate officers. The rollout of the system began in November 2025, introducing a staggered compliance period running through to November 2026.
According to Spotlight on Corruption via a Freedom of Information Act request, Companies House issued 983,000 non-compliance letters between November 2025 and May 2026 to entities that had failed to meet the new identity verification requirements. The scale of enforcement action highlights the magnitude of the challenge facing the registry.
The data also shows that as of March 2026 there were approximately 5.5 million companies on the UK register, meaning that the warning letters affected nearly one-fifth of all registered entities.
Who is affected by Companies House identity verification requirements?
The new identity verification regime applies primarily to individuals responsible for company control and governance. This includes:
- Company directors of both new and existing companies
- Persons with Significant Control (PSCs), including controlling shareholders
- Individuals involved in company incorporation filings under the new rules
As of May 2026, Companies House reported that 183,000 controlling shareholders were in default of identity verification requirements.
The rules currently apply in phases. New companies and filings are subject to verification requirements immediately, while existing company officers and shareholders are being brought into compliance during a transitional period.
However, gaps remain in the framework. The government has yet to confirm a timeline for extending mandatory verification to:
- Limited partnerships
- Corporate directors of companies
- Corporate members of Limited Liability Partnerships (LLPs)
- Officers of corporate controlling shareholders
This phased approach means compliance obligations vary depending on corporate structure, creating complexity for UK businesses navigating regulatory change.
How is Companies House enforcing identity verification compliance?
Companies House has begun issuing formal non-compliance letters as its first enforcement step under the new regime. These letters serve as a warning mechanism ahead of stronger statutory enforcement powers expected from November 2026.
The regulator has described this phase as a transitional period, during which individuals and companies are expected to regularise their status.
A spokesperson for Companies House has not issued additional public comment on the FOI findings, but internal enforcement activity is already underway.
The registry is also beginning to refer more serious cases to other enforcement bodies. According to Companies House, some cases have been passed to the Insolvency Service, which has the authority to investigate and close down companies suspected of being fraudulent or illegally operated.
These referrals have already resulted in 19 ongoing investigations into potentially illicit activity.
What penalties can Companies House impose for non-compliance?
Under the Economic Crime and Corporate Transparency Act 2023, Companies House will gain a broader range of enforcement tools once the full regime is operational.
Potential penalties include:
- Financial penalties, with fines currently capped at up to £2,000 in serious cases
- Disqualification of directors
- Criminal prosecution for the most serious breaches
- Administrative action against company records and filings
The severity of enforcement will depend on the nature of the breach, with repeat offenders facing more significant sanctions.
However, the relatively low financial penalty cap has already raised questions among compliance professionals about whether fines alone will act as a sufficient deterrent.
Companies House has indicated that enforcement will be supported by intelligence-led investigations and coordination with other agencies, including the Insolvency Service.
How is Companies House addressing historic data integrity issues?
The identity verification programme is part of a broader effort to address longstanding weaknesses in the UK corporate registry.
Historically, Companies House operated primarily as a disclosure-based system, meaning it accepted information at face value without verifying its accuracy. This allowed significant misuse of the register, including cases involving false or humorous entries such as fictional or symbolic directors.
This lack of verification has been widely criticised for enabling the UK company system to be exploited by criminals, including kleptocrats and fraudsters seeking to obscure ownership structures and move illicit funds.
As part of the reform programme, Companies House has already taken significant remedial steps. Matt Pennell, Head of Intelligence at Companies House, said in May that since March 2024 the registry had:
- Removed 145,000 registered office addresses
- Removed 115,000 company officers’ addresses
- Rejected or removed 73,000 incorporation documents suspected of being used without consent
These actions reflect a wider attempt to cleanse the register ahead of full enforcement.
What does identity verification mean for UK company compliance obligations?
For UK companies and directors, the new regime introduces a higher compliance burden, particularly during the transition period.
Companies are now expected to ensure that:
- Directors complete identity verification checks before filing certain documents
- Persons with Significant Control are properly verified and recorded
- Company information submitted to Companies House is consistent with verified identities
The rollout has already resulted in the issuance of approximately 3.81 million personal identity codes as of March 2026, indicating significant uptake among compliant entities.
However, businesses that fail to complete verification risk having filings rejected or flagged, which can affect incorporation processes, confirmation statement submissions, and other statutory obligations.
Companies affected by these changes may need to review their filing processes or seek professional support with company formation, confirmation statement filing, and director changes to ensure ongoing compliance with Companies House requirements.
What are the implications for UK anti-financial crime enforcement?
The reforms to Companies House are widely regarded as a cornerstone of the UK’s anti-financial crime framework.
The registry plays a critical role in corporate transparency and is reportedly searched billions of times annually by law enforcement, financial institutions, and compliance professionals. However, weaknesses in verification have historically undermined its reliability.
The changes introduced under ECTA aim to reposition Companies House as a trusted source of verified corporate data rather than a purely declaratory register.
Despite this, enforcement gaps remain, particularly during the transitional period and in relation to corporate structures not yet fully covered by verification requirements.
The effectiveness of the reforms is expected to be assessed in the UK’s upcoming Financial Action Task Force (FATF) mutual evaluation in 2027, where corporate transparency will be a key area of scrutiny.
What risks do UK directors and businesses face during the transition period?
During the phased rollout, directors and business owners face several compliance risks:
- Delays or rejection of filings due to incomplete verification
- Potential enforcement action for failure to comply with identity requirements
- Increased scrutiny of company records and beneficial ownership structures
- Administrative disruption during incorporation or restructuring
Directors of existing companies should ensure their identity verification is completed ahead of the full enforcement deadline in November 2026 to avoid penalties or restrictions on company activity.
Businesses undertaking structural changes, including director updates or ownership adjustments, may need to ensure filings are fully compliant with the new verification framework.
Professional assistance with company formation processes and ongoing compliance filings, including VAT registration and PAYE registration where applicable, may help reduce administrative risks during the transition period.
Will Companies House enforcement be strong enough to deter fraud?
The effectiveness of the new regime will ultimately depend on enforcement intensity once full powers are in place.
While Companies House has begun issuing nearly one million warning letters and escalating cases to the Insolvency Service, concerns remain that enforcement capacity and penalties may need further strengthening to deter sophisticated financial crime.
The UK government’s broader objective is to ensure that corporate structures cannot be used to obscure ownership or facilitate illicit financial flows. The success of this objective will depend on the consistency and scale of enforcement beyond the transitional phase.
What happens next in Companies House reform implementation?
The next stage of implementation will focus on:
- Expanding enforcement powers from November 2026
- Completing identity verification for all existing directors and PSCs
- Addressing remaining gaps in corporate entity coverage
- Strengthening cross-agency enforcement with HMRC and insolvency authorities
As the transition period progresses, companies are expected to face increasing scrutiny of their filings and ownership disclosures.
