What is Companies House WebFiling?

By Ben Davies · Updated 5 October 2026

Companies House WebFiling is Companies House's own online service for filing forms such as the confirmation statement and director changes. For a dormant company's accounts it is narrow: its dormant accounts form is only for a company that has never traded, it sends nothing to HMRC, and it closes for accounts on 1 April 2028.

Why it doesn't fit most dormant companies

• Never-traded companies only. A company that traded before going dormant can't use its dormant accounts form. It can still be dormant, but its accounts have to show what it still owes, is owed or holds from its trading years. See can a dormant company have assets and liabilities?
• Half the job at most. WebFiling is a Companies House service. It can't file a CT600 — the Company Tax Return, which goes to HMRC. If HMRC has sent the company a notice to deliver a Company Tax Return, the company owes both, and WebFiling covers only the accounts.
• It's going. Companies House has confirmed that all company accounts filed on or after 1 April 2028 must go through commercial software. See what changes when WebFiling closes for accounts.

What DormantFile does

We file both from one dashboard. Your dormant accounts go straight to Companies House through its filing route for software, whether the balance sheet is just the share capital or carries figures from the years the company traded. The nil CT600 goes to HMRC whenever HMRC asks for one. We watch each filing until it's accepted.

We also remind you before every Companies House deadline, starting 90 days out, including the confirmation statement, which you file yourself. Late filing penalties on the accounts start the day after the deadline. Plans start at £19/year.

• How it works: How to file dormant company accounts
• See what it costs: Pricing