Deadlines
Business deadline calendar UK
A plain-English overview of the Companies House, HMRC and small-business admin dates Business Sorted helps owners organise.
Last checked: 16 July 2026. Always confirm your own dates in official records.
| Deadline | Body | Plain-English note |
|---|---|---|
| First accounts | Companies House | Usually 21 months after registration for a private limited company's first accounts. |
| Annual accounts | Companies House | Usually 9 months after the company's financial year ends. |
| Confirmation statement | Companies House | Recurring Companies House filing used to confirm company information is accurate. |
| Corporation Tax payment | HMRC | Usually 9 months and 1 day after the accounting period ends for companies with taxable profits up to GBP 1.5 million. |
| Company Tax Return | HMRC | Usually 12 months after the end of the accounting period it covers. |
| Self Assessment | HMRC | For the 2025 to 2026 tax year, online returns and payment are due by 31 January 2027. |
How Business Sorted uses deadlines
Business Sorted separates filing and payment tasks, attaches official source links, and turns deadlines into reminders and preparation steps.
Download a printable calendar
Use the printable version to collect official due dates before adding them to your Business Sorted account.
Download Business Deadline Calendar PDF