Which of the following does not qualify as a capital expenditure?

Capital expenditures refer to the funds used by a business to acquire, upgrade, or maintain physical assets such as property, buildings, machinery, and equipment. These expenses typically provide long-term benefits and enhance the value or capacity of the assets.

Routine maintenance repairs on existing equipment do not qualify as capital expenditures because they involve costs necessary to maintain the asset's existing functionality rather than improve its value or extend its useful life. These types of costs are typically classified as operating expenses, as they are incurred during the normal course of business and do not provide future economic benefits beyond the current accounting period.

On the other hand, purchasing new machinery, upgrading office buildings, and building a new warehouse all represent investments that increase the value of the company's assets or extend their useful life. These expenses are expected to provide benefits over multiple accounting periods, solidifying their classification as capital expenditures.