"An expense report shows in detail how much money an employee spent on behalf of the company. The reports could be saved as electronic files or printed out. In the report, the worker usually breaks down costs like gas, office supplies, meals, and transportation. Also, they have to include a receipt, an invoice, or some other proof for every expense they report.
Lastly, the report is sent to the right people in charge and the finance department for a final look and approval. Workers may sometimes be able to get a small cash advance to help pay for immediate expenses. In this case, the employee is required to give back any money that wasn't used and show proof of the original payment.
Expense reports are usually sent out once a year, three times a year, or once a month. The chief financial officer or head of finance can use quarterly, annual, or monthly expense reports to keep track of how much the company spent during that time. Also, it shows you where you can cut costs to bring in more money." Learn more: https://blog.happay.com/expense-reports/