Depreciation, also known as depreciation, is the expense share that will be shown in line with the wear and tear of the assets purchased for use by the enterprises. In businesses, they normally use the items they buy for more than 1 year. However, it is also possible for all kinds of assets to undergo deformation over time. In such cases, the assets must be written off over their economic life. In order to write expenses, these assets must be divided into the accounting periods in which they are used. Certain conditions are required to allocate depreciation. The first of these is the condition that the asset has been used for more than 1 year. The asset, whose use has exceeded this period, must have been subject to wear, tear and wear. It must be included in the inventory and ready for use on the valuation day.