August 16, 2026 · Gullia Filing Team
2026 UK Confirmation Statement Deadlines and Filing Guide
A complete 2026 guide for UK founders on filing Form CS01, including mandatory deadlines, updated filing fees, and the specific information you must verify annually.
A UK Confirmation Statement (Form CS01) is a mandatory annual filing that verifies a company's essential details are accurate on the public register, and it is due within 14 days of the end of your 12 month review period. Failure to file this document is a criminal offense that can lead to the prosecution of directors and the striking off of the company from the register.
Why is the 2026 Confirmation Statement mandatory for UK companies?
The Confirmation Statement serves as a snapshot of your company's legal structure, ensuring that Companies House holds current data for lenders, investors, and government agencies. Unlike a tax return which focuses on financial performance, the CS01 confirms administrative data such as your registered office address, director details, and shareholder information. In 2026, the transparency requirements under the Economic Crime and Corporate Transparency Act mean that keeping this data accurate is more critical than ever for maintaining your UK Ltd company status.
When is the 2026 filing deadline for my company?
Your 2026 filing deadline is exactly 14 days after your review period ends, which is typically the anniversary of your company's incorporation or the anniversary of your last filing. Every company has a 12 month review period, and while you can file early to start a new period, you cannot exceed the 12 month window without triggering a late status. You can check your specific deadline on the Companies House Service (CHS) portal by searching for your company name and viewing the Next Statement Due date.
What information must be confirmed on Form CS01 in 2026?
To successfully file your statement in 2026, you must review and, if necessary, update several key data points. The form requires you to confirm that no changes have occurred or to report updates regarding your SIC code (Standard Industrial Classification), which describes your business activity. You must also verify the list of shareholders, the distribution of shares, and the information regarding Persons with Significant Control (PSC).
2026 Filing Requirements Checklist
- Registered Office Address: Ensure this is a physical location where documents can be served.
- Single Alternative Inspection Location (SAIL): Confirm if records are kept away from the registered office.
- Officers: Verify the names and service addresses of all directors and secretaries.
- Statement of Capital: Update the total number of shares and their aggregate nominal value.
- PSC Register: Identify any individual who holds more than 25 percent of shares or voting rights.
What are the 2026 Companies House filing fees?
As of 2026, the fee for filing a Confirmation Statement online is 34 GBP, while the paper filing fee remains significantly higher at 62 GBP to encourage digital compliance. This fee is paid once per 12 month review period. If you choose to file multiple updates via Form CS01 within the same year, you only pay the fee for the first filing of that period.
| Filing Method | 2026 Processing Fee | Processing Time |
|---|---|---|
| Digital (WebFiling) | 34 GBP | Immediate/24 Hours |
| Paper (Post) | 62 GBP | 10 to 15 Days |
| Software (API) | 34 GBP | Immediate |
What happens if a UK company misses the filing deadline?
If you miss the 14 day grace period following your review period, Companies House will issue a formal warning to the registered office, and the company's status will be marked as overdue on the public record. Unlike late accounts, there is no automatic civil financial penalty for a late Confirmation Statement, but the legal consequences are more severe. The Registrar may assume the company is no longer carrying on business and begin the process to strike it off the register, which results in the business being dissolved and its assets becoming the property of the Crown (Bona Vacantia).
How to handle errors in previously filed statements
If you discover that a previously submitted 2026 Confirmation Statement contained incorrect information, you must file a second CS01 to rectify the data or use form RP04 to second file a document that is currently on the register. For founders managing multiple jurisdictions, ensuring your UK compliance and maintenance is up to date is essential to avoid cross-border operational issues. Inaccurate filings regarding Persons with Significant Control can lead to fines and are monitored closely by UK authorities in 2026.
How Gullia Filing helps
Gullia Filing manages the entire administrative lifecycle for UK Limited companies, ensuring your 12 month review period is monitored and your Form CS01 is filed accurately before the 14 day deadline expires. Our team verifies your SIC codes, PSC registers, and share capital statements to maintain your company in good standing with Companies House. To ensure your UK entity remains compliant throughout 2026, talk to a filing analyst.
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Questions about: 2026 UK Confirmation Statement Deadlines and Filing Guide
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Your 2026 review period ends exactly one year after the date of your last Confirmation Statement or, if it is your first year, one year after the date of incorporation. For example, if your company was incorporated on June 10, 2025, your first review period ends on June 9, 2026. You then have a 14 day window to submit Form CS01 to Companies House. You can verify this specific date by logging into the Companies House Service portal and checking the 'Next statement due' field.
