April 19, 2026 · 1 min read

Dormant company filing: what you still have to do

Last reviewed by Priya Mehta ACA.

When is a company “dormant”?

Dormant for Companies House means no “significant accounting transactions” during the year. Dormant for HMRC (Corporation Tax) is slightly different — bank interest and certain small transactions can disqualify you. Check both.

What a dormant company must still file

  • Dormant accounts (AA02) with Companies House, annually.
  • Confirmation statement (CS01) with Companies House, annually.
  • Notify HMRC of dormant status — after which CT600s are usually not required until activity resumes.

Risks of ignoring the obligations

Companies House will propose strike-off after persistent non-filing — and you will lose the company name and any assets inside it. Directors can also be personally disqualified. If you don’t need the company at all, a formal strike-off (DS01) is cheaper and cleaner than forgetting.

Ask us about our fixed annual dormant filing fee.