Historical frame
- Kind
- scandal
- Period
- 1992 through part of 1997
- Jurisdiction
- United States
Waste Management makes the boundary between supportable estimate revision and deliberate expense avoidance visible through useful-life and salvage-value decisions.
Questions to carry forward
- What operational evidence could support a change in useful life or salvage value?
- How would each estimate change affect depreciation, carrying amount, income, and later periods?
Claim disciplineEvidence boundaries
- The source is an SEC complaint against named former officers and states allegations.
- A favorable change in an estimate is not itself fraud; intent, support, consistency, disclosure, and the full evidence pattern matter.
Waste Management owned large fleets and other long-lived assets. Depreciation therefore depended on estimates that materially affected annual expense. The SEC alleged that executives extended useful lives and increased salvage values without adequate support, among other actions used to meet predetermined earnings targets.
The case is not evidence that estimates are unreliable by nature. A change in expected service or disposal value can be legitimate when current information supports it. The professional question is whether the method and inputs reflect the asset's expected use, not whether the resulting expense happens to please management.
Students should recompute the direction and multi-period effect before judging conduct: a longer useful life or higher salvage value generally reduces current depreciation and increases carrying amount. Then inspect maintenance records, retirement experience, operating plans, market evidence, approvals, and the timing and consistency of changes.