In the case of Charles Ilfeld Co. v. Hernandez, Collector of Internal Revenue in 1933, the Supreme Court ruled on a tax dispute between a corporation and the federal government. The Charles Ilfeld Company had paid an income tax under protest and then sued for its refund, arguing that it should be allowed to deduct from gross income certain amounts representing depreciation on property sold during the taxable year but not replaced until after its close. The lower courts sided with the company; however, upon reaching the Supreme Court, this decision was reversed. The court held that deductions for depreciation are only allowable as such when they reflect actual capital loss sustained within a given fiscal period due to exhaustion or wear and tear of property used in trade or business throughout that period. Therefore, if there is no evidence showing any decrease in value during said time frame due to these factors (exhaustion or wear), no deduction can be claimed. This ruling clarified how businesses could claim deductions related to asset depreciation on their taxes - specifically emphasizing timing matters regarding when assets were sold versus replaced.

In the dissenting opinion for Charles Ilfeld Co. v. Hernandez, it was argued that the majority's decision contradicted established principles of tax law and policy. The dissenting justices believed that a taxpayer should not be allowed to deduct losses from previous years against income earned in subsequent years without any limitation on time or amount. They contended this would create an unfair advantage for businesses with fluctuating incomes over those with steady earnings, as well as potentially leading to abuse by taxpayers seeking to manipulate their taxable income across different periods. Furthermore, they pointed out that such deductions could significantly reduce government revenue and undermine its ability to fund public services effectively.