Company directors have been given additional time to prepare for significant changes to UK accounts filing requirements, following confirmation that the next phase of Companies House reforms will now take effect from 1 April 2028.
The reforms, which form part of the government's wider programme to improve corporate transparency and strengthen the integrity of the UK company register, were originally scheduled to begin on 1 April 2027. Following extensive consultation with businesses, accountants, software providers, and other stakeholders, implementation has been postponed by 12 months.
What Is Changing?
The reforms introduce several important changes that will affect how companies prepare and file their annual accounts.
Profit and Loss Accounts Required for Small and Micro Companies
Small companies and micro-entities will be required to file a profit and loss account with Companies House.
However, recognising concerns around commercial confidentiality, the government has confirmed that these businesses will be able to opt out of having their profit and loss information published on the public register. Further details on how this opt-out process will operate are expected in due course.
Mandatory Digital Filing
All companies will be required to file annual accounts digitally using commercial software in iXBRL format.
This change is intended to improve data quality, reduce filing errors, and support greater automation within Companies House systems. Companies that already use accounting software or engage accountants to submit filings electronically may experience little disruption, but directors should confirm arrangements with their advisers well in advance.
End of Abridged Accounts
The option to file abridged accounts will be removed.
Companies currently relying on abridged accounts should review their reporting processes and prepare for the new filing requirements.
Stronger Audit Exemption Declarations
Companies claiming an audit exemption will be required to provide a strengthened eligibility statement.
Directors should ensure they fully understand the conditions for audit exemption, as Companies House is expected to increase scrutiny of exemption claims as part of its broader enforcement and verification agenda.
Complete Accounts Filed Together
The reforms will require all component parts of a company's accounts and reports to be submitted together as a single filing package.
This aims to improve consistency and reduce discrepancies between documents submitted to the registrar.
Restrictions on Shortening Accounting Reference Periods
Companies will face tighter controls on shortening their accounting reference periods, reducing the number of times this option can be used.
Directors considering changes to financial year-end dates should review future flexibility carefully before the new rules come into force.
What Directors Need to Do
The postponement provides businesses with a significant preparation window. Companies will effectively have one full accounting year, plus a further nine months, giving approximately 21 months to adapt systems and processes before the reforms become mandatory.
For many businesses, the immediate actions should include:
Confirming with accountants or company secretarial providers whether current filing arrangements already support iXBRL submissions.
Reviewing whether any reliance is placed on abridged accounts.
Assessing the impact of filing profit and loss information with Companies House.
Ensuring governance processes support accurate audit exemption declarations.
Planning for fully digital filing if paper-based or manual processes remain in use.
The Bigger Picture
These reforms are part of the ongoing implementation of the Economic Crime and Corporate Transparency Act, which gives Companies House enhanced powers to improve the reliability and transparency of information held on the public register.
For directors, the message is clear: while the implementation date has moved back, the direction of travel remains unchanged. Digital filing, greater transparency, and stronger compliance obligations will become increasingly central to company reporting requirements over the coming years.
Businesses that use the additional preparation time to modernise their reporting processes and strengthen governance arrangements will be best positioned to meet the new requirements when they take effect in April 2028.
Companies House has indicated that it will contact registered email addresses between 16 and 18 June 2026 with further information and links to detailed guidance.