What it means
A default is not the same as a missed payment. Most lenders define default as a breach serious enough to end the normal repayment arrangement, commonly 90 days past due or a formal event such as insolvency, whereas a single late instalment is simply delinquency.
The rate matters because credit losses fall straight to the bottom line. A business selling on credit terms with a 2% default rate on $20,000,000 of annual sales is losing $400,000 a year, which for a company on a 5% net margin is the profit from $8,000,000 of turnover.
There are two ways to count it and they answer different questions. A count-based rate divides defaulted accounts by total accounts and tells you how common failure is, while a value-based rate divides defaulted balances by total balances and tells you how much money is genuinely exposed.
Comparisons need care because definitions vary. One lender may count an account as defaulted at 90 days, another at 120 days, and a third only once it has been written off, so a headline rate is meaningful mainly against the same lender's own history or a like-for-like peer.
The rate is also a lagging indicator, because defaults show up months after the lending standards that caused them. Credit teams therefore watch early warning signs such as first-payment misses and rising delinquency alongside the default rate itself.
In practice
Real-world examples.
Example
A furniture retailer offering 12-month interest-free credit tracks a default rate of 3.5% by value. Because its gross margin is 45%, it can absorb that level of loss, but a rise above 6% would wipe out the margin advantage the credit offer was designed to create.
Example
A commercial lender reports a default rate of 1.2% in a stable year and 4.8% two years after loosening its approval criteria. The lag makes the point that default rates measure past underwriting quality, not current lending policy.
Example
A software company selling annual licences on 60-day terms measures a default rate of just 0.4% because its customers are large corporates. It uses that figure to argue for extending payment terms to 90 days as a competitive sales lever.
Formula
Calculation
Default rate by number = defaulted accounts / total accounts x 100. Default rate by value = defaulted balances / total outstanding balances x 100.
An equipment finance company has 4,000 active loans on its book with total outstanding balances of $80,000,000. During the year, 120 of those loans went into default, and the balances attached to them totalled $3,200,000.
Default rate by number = 120 / 4,000 = 0.03 = 3.0%
Default rate by value = $3,200,000 / $80,000,000 = 0.04 = 4.0%
The value-based rate is higher than the count-based rate, which tells the credit committee something useful: the loans that defaulted were larger than average. The average defaulted loan was $3,200,000 / 120 = $26,667, against a book average of $80,000,000 / 4,000 = $20,000, so the failures were concentrated in bigger deals.Case study
Seen in the real world.
Meridian Tool Hire is a fictional, illustrative plant hire business created to show how a default rate is read. It rented equipment on 30-day account terms and reported a default rate of 2.0% by number for three years running, which management treated as proof that its credit control was fine.
A new finance manager recalculated the figure by value and found 4.6%, because the accounts that failed were disproportionately the large construction customers with $60,000 to $90,000 balances rather than the small tradespeople. On $25,000,000 of credit sales, that gap was the difference between $500,000 and $1,150,000 of losses.
Meridian responded by capping unsecured exposure per customer at $40,000 and requiring a director's guarantee above that. Within eighteen months the value-based rate had fallen to 2.8%, and the illustrative point stands: the way you count a default rate determines whether you see the real problem.
Watch out
Common mistakes.
- Using default rate and delinquency rate as if they meant the same thing. Delinquency covers any overdue payment, while default is the more serious breach that usually follows months of non-payment.
- Quoting a count-based rate when the exposure is uneven. If the failures cluster in large accounts, the number of defaults understates the money at risk, sometimes badly.
- Comparing default rates across lenders without checking definitions. A 90-day trigger and a write-off trigger produce very different percentages from identical loan books.
Questions
People also ask.
What is a normal default rate?
It depends entirely on the market, ranging from well under 1% in prime secured lending to double digits in high-risk consumer credit, so the only useful benchmark is a comparable book.
Does a rising default rate always mean bad lending?
Not necessarily, since a downturn raises defaults across every lender, which is why credit teams compare their movement against the wider market.
How does the default rate feed into the accounts?
It is the main input to the expected credit loss provision, so a change in the rate directly changes the bad debt charge in the income statement.
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