Answer:

Overhead refers to the ongoing business expenses not directly attributed to creating a product or service. ... In short, overhead is any expense incurred to support the business while not being directly related to a specific product or service.

A sales tax is a tax paid to a governing body for the sales of certain goods and services.

a tax on the amount by which the value of an article has been increased at each stage of its production or distribution.

Overhead costs refer to all indirect expenses of running a business. ... For example, if you have a service-based business, then apart from the direct costs of providing the service, you will also incur overhead costs such as rent, utilities, and insurance.