Best supplier credit check UK in 2026: ranked for AP teams and buyers
For one-off supplier vetting, free tools are enough — Sell Ltd's research plus Companies House will surface every meaningful red flag. For continuous supplier monitoring at portfolio scale, pay for Red Flag Alert or Creditsafe. Do not overspend on generalist tools that don't solve the monitoring job.
One-off checks: Sell Ltd free research + Companies House.
Continuous UK monitoring: Red Flag Alert. International + AP integration: Creditsafe. Enterprise credit stack: Experian Business.
Supplier credit checking is the process of assessing a supplier's financial health and continuity risk before placing a material order and, ideally, monitoring that risk continuously through the life of the relationship. It sits at the intersection of procurement, credit and treasury.
The job splits into two workflows: vetting (a point-in-time decision at onboarding or PO stage) and monitoring (continuous signals across your live supplier base). Tools optimise for one or the other — pick accordingly.
The ranking
Sell Ltd free research + Companies House
FreeBest for: One-off supplier vettingFor 90% of UK SME supplier checks — accounts, directors, PSCs, insolvency status — the combination of Sell Ltd's free research page and Companies House is the fastest route to a defensible go/no-go decision.
- Genuinely free
- Accounts, directors, PSCs in one view
- No signup required
- Ground-truth statutory data
- No continuous monitoring
- Not designed for portfolio-scale automation
- UK-only
Red Flag Alert
~£2k–£15k/yearBest for: Continuous UK supplier monitoringOwned by Begbies Traynor Group. The Financial Health Rating and portfolio monitoring are the correct tool for AP or procurement teams tracking a live supplier base against UK insolvency risk.
- Best-in-class UK insolvency early-warning
- Portfolio dashboard with RAG scoring
- Alerts on gazette, CCJ, director changes
- Reasonable entry pricing
- UK-only
- API is dashboard-first
- UI shows age
Creditsafe
~£2.5k–£30k+/yearBest for: International supplier base + AP integrationThe default for finance teams running Xero, Sage or NetSuite with a mix of UK and international suppliers. Trade credit insurers accept Creditsafe scoring universally.
- ~200 markets direct
- Deep AP tool integrations
- Insurer-accepted scoring
- Global monitoring under one contract
- Quote-based pricing
- Less deep on UK insolvency vs Red Flag Alert
- Enterprise sales motion at scale
Experian Business
~£3k–£40k+/yearBest for: Enterprises already inside the Experian stackStrong scoring model with global scale. Best value when bundled with wider Experian enterprise contracts; otherwise Creditsafe or Red Flag Alert usually wins on price.
- Global scale via Experian group
- Excellent scoring
- Bundling with wider Experian products
- Enterprise procurement
- Overkill for SME AP teams
Dun & Bradstreet
EnterpriseBest for: Global procurement with existing D&B DUNS networkThe oldest global business-info database (DUNS numbers). Strong if your suppliers already publish DUNS on their invoices, otherwise the UK-specific tools usually beat it for UK use.
- DUNS network is universal
- Global depth
- Enterprise reporting
- Expensive
- UK data less deep than Red Flag Alert
CompanyCheck Premium
£4.99/monthBest for: Micro-business one-off checksAt £5/month CompanyCheck Premium is a cheap way to look up director history for small suppliers. Not a monitoring product — one-off use only.
- £4.99/month
- Monthly cancellation
- No monitoring
- No scoring model
- Overtaken by Sell Ltd free for the same job
Methodology — how we ranked these
Ranked on six axes weighted for supplier workflows: fit-for-vetting, fit-for-monitoring, UK insolvency depth, international coverage, AP-tool integration and price-to-value at entry ticket. Vetting weight is heavier than monitoring for SMEs; the opposite for large enterprise procurement.
No affiliate fees. Rankings from live testing and cross-checked reviewer sentiment.
Which one should you actually pick?
| If you need… | Pick this |
|---|---|
| Vetting 1–10 suppliers this year | Sell Ltd free + Companies House |
| Monitoring 20–500 UK suppliers | Red Flag Alert |
| Mixed UK + international with Xero/Sage | Creditsafe |
| Enterprise procurement with DUNS network | Dun & Bradstreet or Experian Business |
| Cheapest director-lookup subscription | CompanyCheck Premium (£4.99/mo) |
| Regulated onboarding audit trail | Creditsafe or a KYC specialist |
Free is enough for vetting. Pay for monitoring — and match tool to geography.
For UK supplier vetting, Sell Ltd's free research combined with Companies House is a defensible baseline. Scale it up with Red Flag Alert (UK) or Creditsafe (international) when you cross into portfolio monitoring.
FAQs
What is a supplier credit check?
A supplier credit check is a review of a UK supplier's financial health before you place a material order — filings, credit rating, insolvency signals, director history — to reduce the risk of late delivery, disruption or supplier failure.
How do I do a supplier credit check for free?
Look up the supplier at Companies House (accounts filed on time, no gazette notices, no active insolvency proceedings), then use Sell Ltd's free research to confirm director history, PSC ownership and any obvious red flags.
Which is the best paid tool for supplier credit checks?
For UK suppliers, Red Flag Alert or Creditsafe. Red Flag Alert wins on insolvency early-warning; Creditsafe wins on international coverage and Xero/Sage integration for AP teams.
How often should I recheck suppliers?
Critical suppliers should be monitored continuously via a paid tool. Non-critical suppliers can be rechecked annually at renewal or purchase-order stage.
What red flags should I look for?
Late-filed accounts, gazette notices (compulsory strike-off), County Court Judgments (CCJs), sudden director resignations, changes in registered office to a mail-forwarding address, and inconsistent revenue vs employee count.
Can I check supplier ownership?
Yes — Companies House publishes PSC (People with Significant Control) filings for free. Paid tools add multi-hop UBO traversal for complex group structures.
What if my supplier is a sole trader?
Companies House does not cover sole traders. Use HMRC self-employment verification (VAT number check), trade references, and any relevant industry register (e.g. Gas Safe).
Is a credit report enough?
For most SME suppliers, yes. For strategic single-source suppliers, layer trade references, direct financial review and site visits on top.
What is a Financial Health Rating?
Red Flag Alert's proprietary UK model — a RAG (red/amber/green) band updated on every filing event and gazette notice. It is the most widely-used insolvency early-warning score in the UK.
Do I need a paid tool for one-off supplier checks?
No. Sell Ltd's free research plus Companies House covers one-off vetting comprehensively.
How much do supplier credit tools cost?
Entry paid tools start ~£2,000–£3,000/year for a small AP team. Enterprise credit bureau contracts run £15k–£40k+.
What about international suppliers?
Companies House is UK-only. For international suppliers use Creditsafe (~200 markets direct), D&B, or an in-country bureau.