What it means
Every sale on credit is an unsecured loan to your customer, made without a bank's underwriting team behind it. Credit checking is the lightweight version of that underwriting, scaled to the size of the exposure you are taking on.
The main sources are consistent across most markets. Credit reference agencies publish a score and a suggested maximum exposure; company registries hold filed accounts, charges over assets and any late filing history; trade references reveal how the customer actually pays; and your own ledger shows what has happened with them before.
Checking should be proportionate. A $2,000 order does not justify the time a $200,000 exposure deserves, so most businesses set tiers: a basic agency check below one threshold, filed accounts and references above it, and full review plus a personal guarantee above another.
The second half of the discipline is monitoring, which many businesses skip. Customers deteriorate after you approve them, so alerts on county court judgements, changes of director, late filings and score movements are often more valuable than the original check, because they arrive while you still have time to reduce exposure.
The economics are stark once you look at them. Losing an unpaid debt does not just cost you the profit on that order, it costs you the cash you spent producing it, and replacing that cash requires a large volume of additional profitable sales.
In practice
Real-world examples.
Example
A steel stockholder runs an agency check on a new customer and finds two recent county court judgements totalling $34,000. It offers payment in advance instead of a $75,000 credit line, and the customer fails eight months later.
Example
A recruitment firm monitors its top 20 clients for changes at the company registry. An alert on a late accounts filing prompts a call, reveals a funding delay, and the firm quietly halves the client's credit limit before the problem becomes public.
Example
A catering supplier reviews filed accounts for a fast-growing customer and sees revenue doubling while cash reserves fall. It grants the requested limit but shortens terms from 60 days to 30, keeping the relationship while cutting exposure.
Formula
Calculation
Additional sales needed to recover a bad debt = Cost of the lost goods or services / Gross margin percentage.
Suppose a distributor supplies an order worth $60,000 at a gross margin of 25%. The cost of goods in that order is $60,000 x 0.75 = $45,000. If the customer fails and pays nothing, the business loses the $45,000 of cash it actually spent, on top of the $15,000 of profit it never earns.
To recover that $45,000 of lost cash through trading, the business needs additional sales of $45,000 / 0.25 = $180,000. In other words, one $60,000 bad debt has to be replaced by three times its value in new business simply to get back to where the company started. Spending $40 on a credit check that prevents this is trivially worthwhile.Case study
Seen in the real world.
The following scenario is illustrative and fictional. Ironvale Components, an invented engineering supplier, checked credit thoroughly at account opening and never again, on the reasonable-sounding basis that its customers were long established.
One customer of nine years' standing gradually stretched from 45 days to 78 days while its balance grew to $140,000. Because the account had been approved in year one and nobody re-ran it, Ironvale missed a change of ownership, a new charge registered over the customer's assets, and a sharp fall in its agency score.
When the customer entered administration, Ironvale recovered about $11,000 on a $140,000 exposure, a loss that at a 25% gross margin required roughly $516,000 of replacement sales to make good. Its illustrative response was to add automatic monitoring alerts on every account over $25,000 and a hard rule that any customer stretching more than 15 days beyond terms triggers a fresh check.
Watch out
Common mistakes.
- Checking a customer once at account opening and never revisiting it. Most large bad debts come from long-standing customers whose position quietly deteriorated after approval.
- Relying only on the headline credit score. The score is a starting point; filed accounts, payment behaviour on your own ledger and the pattern of recent changes carry at least as much information.
- Assuming a large, well-known customer is automatically safe. Size affects the probability of failure but not the size of your loss, and a big customer usually means a bigger exposure.
Questions
People also ask.
How much does a credit check cost?
Basic agency reports are typically a few tens of dollars, and monitoring subscriptions are modest, which is negligible against the cost of a single bad debt.
Does checking a business customer affect their credit score?
No. Commercial searches on a company are not treated the way repeated personal credit applications are, so routine checking causes the customer no harm.
What if a good prospect fails the check?
Trade with them on safer terms rather than refusing outright: payment in advance, a smaller limit, shorter terms, a deposit, or credit insurance on the balance.
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