Guides to the rules

What a UK limited company has to file, when, and what happens if it doesn’t. Each guide shows the official source for every fact, and says when it was last checked.

Last checked 3 October 2026. Looking for how Philofounder itself works? Read the product guide.

Companies House deadline calculatorEnter your incorporation date to see when your confirmation statement, accounts and Corporation Tax are due.

Filing

Confirmation statement: due date, fee and what to check firstThe review period, the 14-day window, the fee, and the details to update before you file.

These guides are general information about Companies House and HMRC rules for private limited companies in the UK, not legal, tax or accounting advice for your company. More guides are added as they are checked.