Confirmation statement deadline checker
Enter a company's incorporation date, and its last made-up-to date if it has filed one, to see when the next two confirmation statements are due. No sign-up, and nothing is stored.
On the certificate of incorporation, or the company's Companies House page.
The “made up to” date on the last confirmation statement filed. Leave blank for a new company, or one whose statements have all been made up to the end of their review period.
How the deadline is worked out
A confirmation statement (form CS01) confirms the information Companies House holds about a company. It is due within 14 days after the end of a review period, and the review period depends on whether the company has filed one before.
No statement filed yet. The Companies Act 2006, section 853A, makes the first review period the 12 months beginning with the day of incorporation. Twelve months beginning on 10 March end on 9 March, so the period ends the day before the anniversary and each later period ends on the same date a year on. GOV.UK's guidance puts it more loosely as “12 months after” incorporation; the checker follows the Act.
A statement already filed. Each later review period begins the day after the date the last statement was made up to, so the next one ends on that date's anniversary. This is why a statement filed early moves every later deadline: the made-up-to date, not the incorporation date, now sets the cycle.
29 February. A period anchored on 29 February ends on the last day of February: 28 February in most years and 29 February in a leap year.
The deadline does not move for a weekend or bank holiday. The date Companies House shows on the company's own page is the one it will hold the company to, so treat this checker as a way to understand and plan, and check that page before relying on it.
Frequently asked questions
When is a confirmation statement due?
Within 14 days after the end of the company's review period. GOV.UK says you must file at least one confirmation statement every 12 months and can file up to 14 days after the review period has ended.
When does the first review period end?
The Companies Act 2006 (s.853A) makes the first review period the 12 months beginning with the day of incorporation, so it ends the day before the first anniversary. A company incorporated on 10 March 2025 has a review period ending 9 March 2026, and the statement is due by 23 March 2026.
What happens if a statement is filed early?
GOV.UK says that if you file early, a new review period will start. The next period runs from the day after the date the statement was made up to, so the next statement is due 14 days after that date's anniversary. Enter the made-up-to date in the checker to see it.
What does it cost to file?
GOV.UK lists the fee as £50 to file online and £110 by post. The fee is charged once in each 12-month payment period, which Companies House counts separately from the review period.
What if the confirmation statement is late?
GOV.UK says you can be fined up to £5,000 and the company may be struck off if you do not file it.
Do dormant companies have to file one?
Yes. GOV.UK says every company, including dormant and non-trading companies, must file a confirmation statement at least once every year.
Related tools
Companies House deadline check looks up live dates for up to 10 company numbers. UK statutory deadline calculator works out accounts, Corporation Tax and CT600 dates from a year end. Companies House penalty estimator covers late accounts.
Sources: Companies Act 2006, section 853A; GOV.UK, Running a limited company: confirmation statement and Filing your company's confirmation statement, read 3 November 2026. This tool is general guidance, not legal advice.