Write-Off

A write-off is the accounting action of removing an uncollectible receivable, or a worthless or fully consumed asset, from a company's books and recognising the resulting loss immediately in the income statement. It reflects an economic reality that has already happened: the value the write-off removes was effectively lost before the entry was made, and the accounting entry simply catches the books up to that fact rather than causing the loss itself.

The most frequent write-off in day-to-day business is a bad debt write-off, where a business concludes a customer's outstanding invoice, identified through an aged receivable report, will never be collected and removes it from accounts receivable entirely. Inventory that has become obsolete, damaged or unsellable is written off in the same way, as are fixed assets that have been destroyed, scrapped or made obsolete before the end of their expected useful life. Loan losses at banks and lenders are also written off once recovery is deemed unlikely, closing out a loan that has already been fully reserved for.

Many businesses do not wait for a specific loss to occur before accounting for the risk of one; instead they build an allowance for doubtful accounts in advance, estimated from historical collection patterns, and charge the expected loss to the income statement gradually over time. When a specific account is actually confirmed uncollectible, the write-off simply reduces both the receivable and the pre-existing allowance, with no further hit to profit at that point because the expense was already recognised earlier through the allowance. A business that has not built an allowance in advance instead takes the full hit to the income statement at the moment the write-off occurs.

A write-off removes an asset's value entirely, treating it as worth nothing going forward, whereas a write-down, closely related to impairment, reduces an asset's book value to a lower but still positive figure that better reflects what it is actually still worth. A company might write down inventory that can only be sold at a discount, while fully writing off inventory that has become completely unsellable. Both are distinct from ordinary depreciation, which spreads an asset's cost down gradually and predictably over its useful life rather than recognising a sudden, unscheduled loss.

Write-offs reduce reported profit in the period they are recorded, and in many tax jurisdictions a properly documented write-off is also deductible for tax purposes, reducing the company's taxable income in that period as well — though tax authorities typically require specific evidence that the amount is genuinely uncollectible or worthless before allowing the deduction, rather than accepting a general estimate of expected losses. Because a large write-off can meaningfully distort a single period's reported earnings, analysts often separate write-offs out from ongoing operating results when judging a company's underlying trend in profitability.

Writing an account off the books does not necessarily mean a business stops trying to collect it; many companies continue pursuing seriously overdue accounts, directly or through a third-party collections agency, even after the balance has already been removed from accounts receivable for accounting purposes. If a previously written-off amount is later recovered, the business records it as a recovery, effectively reversing the earlier loss, rather than as new revenue, since no new sale has actually occurred. This is also why a large write-off in one period is sometimes followed by a small offsetting recovery in a later one, and analysts generally expect a reasonably steady pattern of write-offs relative to a company's receivables or loan book, treating a sudden spike as a signal worth investigating rather than ordinary background noise. Lenders in particular track a borrower's write-off rate closely over time, since a steady upward trend in write-offs relative to the size of the loan book is often one of the clearest early signs that underwriting standards have loosened before any single large loss makes the problem obvious.