July 22, 2026 · Gullia Filing Team
2026 UK Confirmation Statement: Filing Deadlines and Requirements
A UK Confirmation Statement (Form CS01) must be filed by every Limited company at least once every 12 months to verify company data with Companies House.
A UK Confirmation Statement (Form CS01) must be filed at least once every 12 months, and for 2026, the filing must be submitted within 14 days of the end of the review period. Failure to file this document is a criminal offense that can lead to director prosecution or the company being struck off the register.
What is the purpose of the 2026 UK Confirmation Statement?
The Confirmation Statement is a compliance requirement designed to ensure the information held by Companies House about your business is accurate. Unlike annual accounts, which focus on financial performance, the CS01 focuses on administrative data. In 2026, this includes verifying your registered office, the identity of directors, and the list of shareholders.
Since the full implementation of the Economic Crime and Corporate Transparency Act (ECCTA), the 2026 Confirmation Statement also serves as an annual declaration that the company has followed its legal obligations regarding identity verification for all relevant officers. It is no longer just a checkbox exercise: it is a formal verification of your company's legal standing.
When is the CS01 filing deadline in 2026?
Your 2026 deadline is determined by your "review period," which usually begins on the date of incorporation or the anniversary of your last filing. Every company has a 12 month review period. Once that period ends, you have exactly 14 days to deliver the statement to Companies House.
| Feature | 2026 Requirement |
|---|---|
| Review Period Frequency | Every 12 Months |
| Filing Window | 14 Days after review period ends |
| Mandatory Form | Form CS01 |
| Identity Verification | Required for all filers |
| Lawful Purpose Statement | Mandatory for all 2026 filings |
If you miss this 14 day window, your company is at risk. While Companies House often sends reminders, the legal responsibility resides with the directors. If you have moved offices or changed your UK Ltd business formation details without updating the registry, the Confirmation Statement is the mechanism used to catch and rectify these discrepancies.
Which company details are verified on the 2026 statement?
The 2026 statement acts as a snapshot of your corporate structure. You must check and confirm the following data points:
- Registered Office Address: This must be an "appropriate address" where documents can be delivered and acknowledged.
- SIC Code: The code that describes your primary business activity.
- Share Capital: The total number of shares issued and their aggregate nominal value.
- Shareholder List: Any changes to who owns shares in the company.
- PSC Register: Details of individuals with significant control (usually those holding more than 25 percent of shares or voting rights).
If any of this information has changed during the year, you may need to file separate update forms before the CS01 can be accepted. Specifically, changes to directors or PSCs must be reported via their respective forms before the confirmation can be finalized.
What are the 2026 Companies House filing fees?
As of 2026, Companies House maintains a digital first fee structure. Filing your Confirmation Statement online is significantly cheaper than paper based submissions. The annual fee covers all filings of the CS01 within a 12 month period. This means if you choose to file multiple confirmation statements in a single year (for example, to synchronize your review period with your financial year), you only pay the fee once every 12 months.
For most businesses, UK tax and accounting providers handle this fee as part of an annual compliance package. Ensuring the fee is paid promptly is essential, as the statement will not be marked as "filed" until both the data and the payment are successfully processed.
What happens if you do not file a Confirmation Statement?
The consequences of non compliance in 2026 are severe. If the statement is not filed, the Registrar of Companies may assume the company is no longer carrying on business or in operation and will take steps to strike it off the register.
When a company is dissolved via strike off, all its assets (including bank account balances and property) technically become the property of the Crown (Bona Vacantia). Furthermore, directors can face personal prosecution and fines in the Magistrates Court, which can lead to a criminal record and disqualification from acting as a director in the future.
2026 UK Compliance Checklist for Founders
To ensure your business stays in good standing, follow this compliance sequence for 2026:
- Monitor the Review Date: Check your last filing date on the Companies House register to identify your 2026 window.
- Verify Identities: Ensure all directors and PSCs have completed their biometric identity verification under ECCTA rules.
- Confirm the SIC Code: Update your trade classification if your business model has pivoted.
- Register Updates: Confirm that your SAIL address (where you keep your statutory registers) is current.
- Submit CS01: File the statement via the Companies House digital portal within 14 days of your review date.
How Gullia Filing helps
Gullia Filing manages the entire UK compliance lifecycle for international and domestic founders. We track your review periods, ensure all PSC data is current, and handle the formal submission of your 2026 Confirmation Statement to prevent penalties or strike off actions. To ensure your UK company remains in good standing, talk to a filing analyst today.
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Questions about: 2026 UK Confirmation Statement: Filing Deadlines and Requirements
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For 2026, you have a strict 14 day grace period following the end of your one year review period. If your review period ends on June 1, 2026, your filing deadline is June 15, 2026. This period is shorter than the timeframe allowed for annual accounts, and missing it can lead to company strike off action by Companies House.
