Declining Balance Method (also known as the 'Reducing Balance Method') is an accelerated depreciation method used in accounting. Unlike its simpler cousin, the straight-line depreciation method which spreads the cost of an asset evenly over its life, the declining balance method front-loads the expense. This means a larger portion of an asset's cost is recognized as a depreciation expense in the early years of its use, and a smaller portion in the later years. This approach is based on the commonsense idea that many assets, like a new car or a computer, lose more of their value and are most productive when they are new. For a value investing practitioner, understanding this method is crucial because it can significantly impact a company's reported net income and, more importantly, its cash flow. It paints a different picture of a company's profitability and financial health than other depreciation methods.
The magic of the declining balance method lies in applying a fixed depreciation rate to the asset's declining book value each year, rather than its original cost. The book value is simply the asset's original cost minus the accumulated depreciation to date.
The annual depreciation expense is calculated as follows: Depreciation Expense = Book Value at Beginning of Year x Depreciation Rate The most common variant is the Double-Declining Balance Method, where the depreciation rate is exactly double the straight-line rate. For example, if an asset has a useful life of 5 years, its straight-line depreciation rate is 20% per year (1 / 5 years). The double-declining rate would be 40% (20% x 2). A key rule to remember is that an asset cannot be depreciated below its estimated salvage value—the amount it's expected to be worth at the end of its useful life. Once the book value hits the salvage value, depreciation stops.
Let's see this in action. Imagine a company, “Speedy Deliveries,” buys a new van for $50,000. The van has a useful life of 5 years and an estimated salvage value of $5,000.
The straight-line rate is 1 / 5 years = 20% per year.
The rate we'll use is 20% x 2 = 40% per year.
Notice how the depreciation expense starts high ($20,000) and shrinks each year, perfectly illustrating the “declining balance.”
This isn't just an accounting quirk; it has real-world implications for investors analyzing a company's financial statements.