realization principle

Picture an apple orchard. In spring the trees blossom, in summer the apples swell, and only in autumn do you pick and sell them. It would be wishful to count your money in spring just because the blossoms look promising. The realization principle is the accountant's version of waiting until the apples are actually picked and sold: don't claim a profit until the sale is essentially complete and reasonably certain.

More precisely, the realization principle says revenue is recognized when it is both earned (the company has substantially done what it promised) and realized or realizable (the company has received cash, or a claim to cash such as a receivable, that is reasonably collectible). Both conditions matter. A signed order with nothing delivered is not realized; a delivered product to a customer who clearly can never pay is delivered but not realizable. Only when you have done the work and hold a solid claim to payment do you book the revenue. For instance, shipping goods to a creditworthy customer on credit is realized even though no cash has changed hands yet.

This principle is the conceptual ancestor of today's detailed five-step model and sits at the heart of accrual accounting. It is also the reason mere increases in an asset's market value — like land you own rising in price — are usually not recorded as revenue: the gain hasn't been realized through a transaction. A frequent confusion is treating signing a contract, or a rise in value on paper, as if it were earned income; the realization principle deliberately holds the line until a real, collectible exchange has occurred.