How to Check a UK Company's Financial Health

1. Start with the register, not the accounts

Find the company on the Companies House register and check the basics first: is it active, how long has it traded, and does it file on time? A company that files late — or has a gap in its filing history — is telling you something before you read a single number.

2. Identify the account type

UK companies file different levels of detail. Micro-entity accounts are a balance sheet with almost no notes; small-company accounts add a little more; full accounts include a profit and loss account. Knowing which type you are reading sets realistic expectations for what you can conclude.

3. Read the trend, not the snapshot

One profitable year proves little. Compare at least two or three filing periods: is turnover growing or shrinking, and are margins holding up? A company growing fast while its margins collapse may be buying work at unsustainable prices — a classic precursor to trouble in contracting.

4. Check the balance-sheet buffer

Net assets and shareholder equity are the cushion that absorbs a bad year. Thin equity means one loss-making contract can push the company into negative territory. Negative equity means the company already owes more than it owns — not automatically fatal, but a serious question mark.

5. Look for the visible red flags

• Late or missing filings
• Shrinking or negative shareholder equity
• Sustained operating losses
• Rapid turnover growth with collapsing margins
• Auditor resignations or qualified opinions, where an audit is required

6. Remember what filed accounts cannot tell you

Accounts are backward-looking and can be up to 18 months old by the time they are filed. They show no payment behaviour, no bank position and nothing since the balance-sheet date. Treat a filed-accounts check as the foundation of your decision, then layer on references, credit terms and contract protections.