To check a company’s credit rating, search its registered name or company number with a business credit reference agency such as Experian, Equifax, Creditsafe or Dun & Bradstreet. Then review Companies House filings, charges and any insolvency records. There is no single official UK business credit score, and an agency rating cannot guarantee payment. Compare it with county court judgments, your customer’s payment habits and your own credit exposure. Long-standing clients deserve the same scrutiny as new customers, especially as outstanding balances grow.
Why Old Clients Become a Hidden Risk
Many businesses run a credit check when opening an account, then stop monitoring a customer who always pays. Yet historic reliability cannot guarantee future solvency. The Insolvency Service reported that approximately one in 200 companies in England and Wales entered insolvency in the 12 months to August 2026. That rate covers registered companies generally, not just established customers, but shows why trading history alone is not enough.
| Why old clients are risky | How it shows up |
|---|---|
| Limits are never reviewed | A historic limit no longer reflects the client’s finances |
| Exposure creeps up | Larger orders increase the balance at risk |
| Terms quietly stretch | Repeated late payments become accepted practice |
| Trust replaces evidence | Reviews stop because the customer seems reliable |
| Circumstances change | Directors, ownership, lenders or markets change |
Experian makes a similar recommendation in its credit control guidance: regularly recheck existing customers because financial circumstances can change without warning.
How to Check a Company’s Credit Rating
- Confirm the legal entity. Match the customer name and company number on your agreement or invoice with its registered identity. A trading name may conceal a different contracting company.
- Start with the free register. Companies House publishes filing history, directors, charges and company status. Our guide to Companies House checks for credit control explains how to interpret the information.
- Run a credit report. Use an established agency or our credit checking service to examine its risk score, available payment data and recorded judgments.
- Check formal notices. Search The Gazette for relevant winding-up petitions, insolvency appointments and other official notices.
- Compare your own ledger. A customer taking 20 more days to pay than last year warrants investigation, even when an external score remains strong.
- Record your decision. Document the date, information reviewed, approved credit limit and next review date.
How Business Credit Scores Work
Agencies use different models and scales. The same business may receive different assessments because providers weight financial data and payment behaviour differently.
| Provider | Typical score | Notes |
|---|---|---|
| Experian | Commercial Delphi, 0–100 | Scores of 81–90 indicate low risk; 91–100 very low risk |
| Creditsafe | Typically 1–100 | Higher scores generally indicate lower predicted failure risk |
| Dun & Bradstreet | Multiple ratings and indicators | PAYDEX assesses payment behaviour; other scores examine failure risk |
| Equifax | Proprietary business ratings | Check the report’s current scale and risk explanation |
Always use each provider’s published bands, rather than comparing numbers directly. A score of 65 does not have the same meaning across agencies. Experian’s Commercial Delphi considers information such as accounts, payment performance and company characteristics. Scores are estimates based on available information, not assurances that an invoice will be paid.
Warning Signs on Long-Standing Customers
A score describes risk at a point in time. For established customers, changing behaviour may be more informative.
- Slower payments. Compare each customer’s average payment time with its previous pattern, not only your total debtor days.
- Late filings. Overdue accounts or confirmation statements may indicate administrative or financial difficulties, but do not prove insolvency.
- New registered charges. Secured borrowing may affect what unsecured creditors recover, depending on security and priority.
- New directors or owners. Changes in control can alter purchasing and payment decisions.
- Requests for greater credit. Larger limits or extended terms can indicate pressure on working capital.
- More invoice disputes. Repeated unexpected queries may delay collections and deserve investigation.
- A sudden increase in orders. Growth is welcome, but can also concentrate exposure in one customer.
Another development affects what creditors can see. From April 2028, small companies and micro-entities will have to file profit and loss accounts with Companies House, but may opt out of publishing those figures publicly. The changes will not automatically give trade creditors fuller financial statements. Your own payment records therefore remain an important source of timely risk information.
How Often Should You Review Existing Clients?
An annual check is a practical starting point for ordinary credit accounts, with quarterly monitoring for major exposures and immediate reviews after missed payments, credit-score downgrades or adverse notices. Higher-risk sectors or large balances may warrant more frequent attention. Set a schedule suited to your business.
First, rank customers by outstanding balance and share of total sales. Review the largest concentrations, including older accounts with growing limits. Our guides to aged debtors reporting and credit control KPIs explain useful measures. Our article on using technology to prevent late payment covers automated reminders and risk monitoring.
What to Do if an Old Client Looks Risky
A weaker score does not necessarily justify ending a valuable relationship. Manage the exposure proportionately and document any changes.
- Reduce the credit limit or renegotiate payment terms where your contract permits.
- Request deposits or staged payments before accepting unusually large orders.
- Consider security beyond personal guarantees and an enforceable retention of title clause for appropriate goods.
- Discuss emerging concerns early, while communication remains constructive.
- Escalate overdue invoices through a documented process, using our guide on when to escalate an invoice.
If the customer enters insolvency, unsecured debts may recover little or nothing. Our guides to recovering debt from insolvent customers and supply chain protection during administrations explain practical options. Our article on rising financial distress highlights broader warning signs.
For difficult accounts, outsourced credit control can manage reminders and reporting. Construction suppliers may use our construction debt collection team, while international debt collection supports overseas cases. Our B2B debt collection tips explain escalation, and our onboarding guide addresses prevention.
Frequently Asked Questions
Is there an official UK business credit rating?
No. Agencies calculate commercial scores using proprietary models. Companies House provides official company information, but does not issue a universal business credit rating.
Can I check any company’s credit rating?
You can review publicly available company records and purchase many commercial credit reports. Sole traders and individuals are subject to additional privacy and data protection considerations.
How often should I re-check existing customers?
Review at least annually as a practical baseline, more frequently for significant exposure, and promptly after missed payments, adverse filings or material changes.
Does a high score mean a company will pay me?
No. A credit score estimates risk and cannot guarantee prompt payment. Combine external reports with your own ledger, recent behaviour and agreed terms.
Check the Clients You Trust Most
Your longest-standing customers can hold your largest unreviewed balances. Speak to our team for a free, no-obligation discussion about credit checks, exposure limits or recovering overdue invoices.
