Straight-Line Method Depreciation is a popular method of accounting for the gradual loss in value of physical assets over time. It assumes that an asset will depreciate evenly, with the same amount being expensed on a periodic basis over the lifespan of the asset. This method is advantageous because it allows businesses to track the declining value of their assets and recognize any resulting losses accordingly. As such, it provides a more accurate picture of true profitability over time. By utilizing the Straight-Line Method, businesses can make smarter decisions about when and how to replace aging assets.