Per diem definition

What is Per Diem?

Per diem is a daily allowance for expenses incurred that is paid by an employer to its employees. This payment is usually associated with employee travel, and is the standard amount that the employer expects its staff to spend on hotels, meals, and incidentals while on the road. A simplified form of per diem is the standard mileage rate paid to employees who drive their own cars while on company business.

Advantages of Per Diem Reimbursement

There are two key advantages associated with the use of per diem allowances, which are as follows:

  • Minimal expense report review time. By paying a standard daily amount, the employer can dispense with having to review employee expense reports.

  • Employees can earn more. Employees can take advantage of a per diem arrangement by deliberately spending less than the per diem amount and then taking payment of the designated per diem amount.

Related AccountingTools Course

Expense Report Best Practices

Which Per Diem Rates to Use

An employer can pay any per diem amount it wants, but there are some standards that are generally followed. For example, employers pay the standard mileage rate published by the Internal Revenue Service each year. Another source of per diem information is the General Services Administration, which regularly publishes a guide that states travel and entertainment reimbursement costs for a large number of cities.