UK limited companies · checked 4 November 2026
Companies House deadline checker
Every UK limited company has two Companies House filings each year, the annual accounts and the confirmation statement, plus a corporation tax return to HMRC. Enter two or three dates and see when each is due, and what you owe if you're already late.
The three yearly deadlines
| Filing | Who it goes to | When it's due |
|---|---|---|
| Annual accounts | Companies House | 9 months after the year end (private), 6 months (public). First accounts: 21 months after incorporation (private), 18 months (public). |
| Confirmation statement | Companies House | Within 14 days after the statement date, at least once every 12 months. A fee is due each time. |
| Corporation tax return (CT600) | HMRC | 12 months after the end of the accounting period. The tax itself is due 9 months and 1 day after it. |
If your year end is the last day of a month, the accounts deadline is the last day of the month too. A 30 June year end is due 31 March, not 30 March.
Late filing penalties for accounts
| How late | Private company | Public company |
|---|---|---|
| Up to 1 month | £150 | £750 |
| 1 to 3 months | £375 | £1,500 |
| 3 to 6 months | £750 | £3,000 |
| More than 6 months | £1,500 | £7,500 |
The penalty doubles if the previous year's accounts were also late. It is charged to the company automatically, and only a few reasons are accepted on appeal (serious illness, a fire or flood, a Companies House error). See how to appeal a Companies House late filing penalty.
A late confirmation statement
There's no automatic fine, but not filing is a criminal offence for the company and its directors, and Companies House can start striking the company off the register. Since 18 November 2025 the statement also can't be filed until every director has verified their identity, so check your director ID verification deadline first.
Directors living outside the UK
Many UK companies are run from India, the US, the UAE or Nigeria after being set up through a formation agent. The deadlines are the same wherever you live, the penalties are charged to the company, and Companies House letters go to the registered office, which is often the agent's address. If your agent's service has lapsed, you may not see the reminders at all.
Own a US LLC too? Check what it owes
Sources: Companies Act 2006 s441-s453; The Companies (Late Filing Penalties) and LLPs Regulations 2008; Companies House guidance "Accounts filing deadlines" and "File your confirmation statement"; HMRC "Company Tax Returns" guidance. Guidance, not legal or tax advice.