Annual filings
| Filing | Deadline | Cost |
|---|---|---|
| Annual accounts (first set) | 21 months after incorporation | Free online |
| Annual accounts (subsequent) | 9 months after year-end | Free online |
| Confirmation Statement | 14 days after review period | £34 online |
| Corporation Tax return (CT600) — HMRC | 12 months after accounting period | Free |
| Corporation Tax payment — HMRC | 9 months + 1 day after period end | n/a |
Event-driven filings
- AP01 / TM01 — appoint or terminate a director (14 days)
- CH01 — change a director's details (14 days)
- AD01 — change registered office (no statutory deadline but file promptly)
- PSC01-09 — changes to people with significant control (14 days)
- SH01 — return of allotment of shares (1 month)
Late-filing penalties for accounts
| Days late | Private company |
|---|---|
| Up to 1 month | £150 |
| 1–3 months | £375 |
| 3–6 months | £750 |
| Over 6 months | £1,500 |
Penalties double if accounts are also late the following year.
How to stay compliant
- Add deadlines to a shared calendar (use our deadline tool)
- Authorise your accountant on Companies House so they can file on your behalf
- Diary the Confirmation Statement renewal date — it sneaks up
- Reply to every email from Companies House — they default to digital communication now
Missed a deadline? File immediately. The earlier you file after the deadline, the lower the penalty.