Depreciation Principles

In an annual report, depreciation represents the systematic allocation of an asset's value over its period of use. This reflects the economic consumption of the asset's future benefits and ensures that costs are matched with revenue, which in turn gives a truer picture of the company's profitability and financial position.

The choice of depreciation method and period can considerably affect financial ratios such as operating profit and equity, which makes it a critical parameter for both internal decision-makers and external analysts.

For a stock analyst, a deep understanding of a company's depreciation policy means the ability to identify potential manipulations or aggressive accounting principles that can conceal underlying weaknesses. For example, an abnormally long depreciation period can mask rapidly deteriorating competitiveness or technical obsolescence.

By comparing the company's policy with industry standards and historical trends, the analyst can reveal whether reported profits are sustainable or rest on temporary accounting adjustments.

In practice, applying the principles means determining, for each asset, its acquisition value, residual value and its economic life. The most common method is straight-line depreciation, where the cost is allocated equally over the years. Alternatively, progressive or declining methods can be used, reflecting that an asset generates its greatest benefit at the beginning of its life.

For specialized assets, such as machinery with rapid technological development, a combined method with higher depreciation in the first years may be more representative. It is crucial to document assumptions about life and residual value, since these are subjective judgments that must be justified in the administration report.

For an analyst, it is important not only to look at the reported depreciation, but to revise it based on one's own assumptions. By assuming a more realistic life or a lower residual value, the analyst can calculate a 'revised' EBITDA and operating margin, which gives a more robust picture of the company's core operations.

This is particularly relevant for companies with large, obsolete asset bases where the historical accounting no longer reflects the actual economic consumption.