Company Accounts Explained: Dormant, Micro-Entity & Small

Company accounts are the annual financial statements every UK company must file at Companies House. How much detail you see depends on the company's size: small, micro-entity and dormant companies are allowed to file less than large ones. Understanding the format is the key to reading — and not over-reading — what a company has filed. Here's what the main types mean.

Why accounts exist

Every registered company must prepare and file annual accounts, so that owners, lenders, suppliers and the public can see its financial position. Accounts are filed for each financial year, and there are filing deadlines — generally within nine months of the year end for a private company, with different rules for a company's first accounts. Deadlines and any late-filing penalties are set by Companies House; check the current rules on GOV.UK.

The main types you'll see

• Full accounts — the fullest picture: profit and loss, balance sheet and notes. Larger companies file these.
• Small-company accounts — companies that meet the "small" thresholds can file reduced accounts, often without a full profit-and-loss account. Most companies you research fall here.
• Micro-entity accounts — the very smallest companies file a highly simplified balance sheet with minimal notes. Useful for confirming existence and rough net worth, but light on detail.
• Dormant company accounts — a dormant company has had no significant transactions in the year and files very simple accounts confirming that. Dormant doesn't mean defunct — it's often a company holding a name, an asset or a future plan.

How to read them

A few practical points:

• Detail scales with size. Don't read a lack of a profit figure as evasion — small and micro companies are entitled to omit it. Judge a company against the format it's allowed to file.
• Look at the trend, not one year. Net worth rising or falling across several years tells you more than a single snapshot.
• Timeliness matters. Late or overdue accounts are a red flag worth weighing alongside everything else — see how to research a UK company.

Accounts as a signal

For prospecting and monitoring, accounts are a rich signal beyond the numbers themselves. A first set of non-dormant accounts can mark a company starting to trade; a jump in size can mark growth. Tracking when companies file — and surfacing those with overdue accounts — is one way teams use the register. See company monitoring, or the wider UK company database for filtering companies by what they've filed.

To see accounts in context on a real company, search the live register. For how filings fit together, read how to read a filing history.