Conservatism Principle
An accounting guideline that directs companies to record losses and liabilities as soon as they are probable, but to delay recognizing gains until they are realized.
What is Conservatism Principle?
The conservatism principle (also called prudence) is a foundational accounting concept that directs companies to err on the side of caution when uncertainty exists: anticipated losses and liabilities should be recognized as soon as they become probable, while anticipated gains should not be recognized until they are realized or virtually certain. This asymmetric treatment of gains and losses helps prevent the overstatement of assets and income. Practical applications include writing down inventory to net realizable value when market prices fall below cost, recording contingent liabilities for probable lawsuits, and using the allowance method for doubtful accounts. The conservatism principle supports investor confidence by reducing the risk of financial statements overstating a company's financial position.
Example
A company carries $10 million of seasonal merchandise on its balance sheet at cost. Due to changing consumer preferences, the merchandise's net realizable value falls to $7 million. Under the conservatism principle (and the lower of cost or net realizable value rule under ASC 330), the company immediately recognizes a $3 million inventory write-down, reducing both the asset value and earnings. However, if the merchandise had increased in value to $12 million, the company would not record any gain — unrealized gains are not recognized until the inventory is actually sold.