Compliance calculator
Late Filing Penalty Calculator
Estimate Companies House and HMRC self assessment penalties for a late filing.
| Filing penalty | £150 |
| Late payment penaltyNot applicable to Companies House | £0 |
| Estimated total penalty | £150 |
Companies House penalties for a private limited company: £150 (up to 1 month late), £375 (1–3 months), £750 (3–6 months), £1,500 (over 6 months) — doubled if you were also late the previous year. HMRC self assessment: £100 immediate penalty after 31 January even if no tax is owed, daily penalties after 3 months, and further penalties at 6 and 12 months, plus separate late-payment penalties on tax owed. These are simplified estimates — HMRC's rules include further nuances. If you've missed a deadline, act quickly and talk to an accountant; penalties can sometimes be appealed with a reasonable excuse.
Figures use published 2026/27 UK tax rates and are simplified estimates for guidance only — not tax, accountancy, or financial advice. Your actual liability depends on your full circumstances; confirm withGOV.UK or a qualified accountant before acting.