What are expenses not related to core business operations called?

Expenses not related to core business operations are referred to as non-operating expenses. These expenses include costs that a company incurs that are not directly tied to its primary business activities, such as interest expenses, losses from investments, or one-time costs.

Identifying non-operating expenses is crucial for understanding a company's overall financial performance, as they do not reflect the operational efficiency of the business's core activities. These expenses are typically reported separately from operating expenses on financial statements to provide clearer insights into how well the core business is performing without the impact of unrelated costs.

In contrast, other terms such as operational expenses, which encompass costs directly associated with day-to-day business functions, or selling expenses, which are specifically tied to the marketing and selling efforts of a product or service, would not apply to expenses that fall outside the realm of core operations. Non-core expenses could also suggest a broader categorization, but they are not specifically recognized as a financial term in the same way that non-operating expenses are. Therefore, non-operating expense is the most precise term for expenses not related to core business operations.