Write-off

A write-off is a reduction of the recognized value of something. In accounting, this is a recognition of the reduced or zero value of an asset. In income tax statements, this is a reduction of taxable income, as a recognition of certain expenses required to produce the income.

Income tax

In income tax calculation, a write-off is the itemized deduction of an item's value from a person's taxable income. Thus, if a person in the United States has a taxable income of $50,000 per year, a $100 telephone for business use would lower the taxable income to $49,900. If that person is in a 25% tax bracket, the tax due would be lowered by $25. Thus the net cost of the telephone is $75 instead of $100.

Accounting

In business accounting, the term write-off is used to refer to an investment (such as a purchase of sellable goods) for which a return on the investment is now impossible or unlikely. The item's potential return is thus canceled and removed from ("written off") the business's balance sheet. Common write-offs in retail include spoiled and damaged goods. In commercial or industrial settings, a productive asset may be subject to write-off if it suffers failure or accident damage that is infeasible to repair, leaving the asset unusable for its intended purpose.