What type of form is used to track the spending of a business?

The expense report is specifically designed to track and detail the spending of a business. It serves as a formal document where employees can itemize their expenditures related to business activities, such as travel, meals, and supplies. This report allows organizations to oversee their spending, ensure that expenses are legitimate, and facilitate the reimbursement process for employees.

In contrast, an invoice is generally a request for payment by a supplier for goods or services provided, focusing on accounts receivable rather than tracking expenses internally. A balance sheet provides a snapshot of a company's financial position at a specific point in time, detailing assets, liabilities, and equity, but it does not offer an ongoing view of spending. A purchase order is used to formally request the purchase of goods or services, which can later be reflected in expense reports but does not directly track spending as it occurs.