Why bad debt expense matters to a first-time founder
Recording this expense prevents profit and receivables from looking stronger than they are. It makes the cost of extending customer credit visible and helps founders compare collection quality over time. The timing and method depend on the accounting framework and the evidence available.
Examples of bad debt expense
A US wholesaler has $500,000 of credit sales and estimates that 2% will not be collected. It records $10,000 of bad-debt expense and an allowance that reduces the reported value of receivables. A later customer failure may use that allowance rather than create a new surprise.
Common misunderstanding
Bad-debt expense is not the unpaid invoice itself. Bad debt describes the amount considered uncollectable; the expense is its effect on reported profit. Some methods estimate expected losses before specific customers fail, while a direct write-off records a loss when a particular balance becomes uncollectable.
When to use it
Use it when closing monthly or annual accounts if you sell on credit. Base estimates on invoice age, customer circumstances and past collection results, then update them when evidence changes. Ask an accountant which method and tax treatment apply rather than copying a convenient percentage.