Dormant accounts are a filing status, not a tax election

The record

Companies House applies its own test for whether a company is dormant, separate from HM Revenue and Customs' test for the same word. Its guidance states a company is dormant if it has had no significant transactions in the financial year, and specifically excludes filing fees paid to Companies House, late-filing penalties, and money paid for shares at incorporation from counting as significant. A company that is both dormant and qualifies as small under the separate small-company thresholds guidance can file dormant accounts instead of full accounts, and does not have to include an auditor's report.

Both guidance pages are explicit that dormant status changes nothing about the underlying filing obligations: a dormant company must still file a confirmation statement and annual accounts every year, and does not need to notify Companies House when it restarts trading, since its next non-dormant set of accounts will show that on its own.

What the documents establish

The two guidance pages, read together, show that dormant for Companies House and dormant for Corporation Tax are separate notifications governed by separate rules: a company can be dormant under one test and not the other, and qualifying for the simplified Companies House filing additionally requires meeting the small-company thresholds, not dormancy alone. Nothing in either document describes dormant status as a tax election; HMRC's own dormant-for-tax notification is a distinct process the guidance treats as a separate topic, referenced but not merged with the Companies House filing route.

The operating read

Editorially, a pre-revenue startup incorporated ahead of trading should treat the dormant-accounts route as a Companies Act filing simplification, not as a way to defer tax registration or avoid HMRC entirely; a company can still owe HMRC a dormant-for-tax notification, or lose that status the moment it takes a taxable transaction, regardless of what it files at Companies House. Founders sometimes overlook that share payments at incorporation and Companies House filing fees do not, on their own, break dormancy for Companies House purposes, which is useful for genuinely inactive holding structures but is not a general licence to defer bookkeeping.

What to check before you decide

Before filing, or relying on another company's filing, of dormant accounts, check the following.

• Has the company had any transaction beyond the specific exclusions Companies House lists, such as a bank charge, a supplier payment, or revenue, that would break dormancy?
• Does the company also meet the small-company thresholds required to use the simplified dormant-accounts filing, separate from dormancy itself?
• Has the company separately notified HMRC of its dormant-for-Corporation-Tax status, or does it still need to file a Company Tax Return despite dormant Companies House accounts?

Dormant-account status is a filing simplification available to genuinely inactive companies that also meet the small-company test, not a tax status in its own right. The two guidance pages keep the two questions separate, and a filing that conflates them risks missing an HMRC obligation entirely.