Inventory must be tested for obsolescence using the lower-of-cost-or-market method. Obsolete inventory must be written down (expensed) in the income statement which results in lower earnings. Thus, failure to recognize obsolescence understates expenses and overstates earnings.

Delaying expenses involves deferring recognition to a future period. Delaying expense is the result of capitalizing a cost instead of immediately recognizing the cost in the income statement. This is not the same as failing to recognize inventory obsolescence.

Investors typically focus more on operating income than nonrecurring and non-operating income. Thus, firms may have an incentive to increase operating income by misclassifying an operating expense as a nonrecurring or non-operating item. Therefore, failure to recognize obsolescence is not an example of misclassification.