SM - a master's degree in science Master of Science, MSc, MS master's degree - an academic degree higher than a bachelor's degree but lower than a doctor's degree
DEFINITION of 'Per Diem Payments'. Generally, a specified amount that employers will pay to employees as reimbursement for various expenses. Per diem payments usually assume a set dollar limit, such as $30 per day for meals or $100 per day for lodging. These payments are usually made for employee travel expenses.er diem payments are usually counted as nontaxable income to employees, up to a certain amount, and any excess reimbursement is included in box 12 of the W-2 form. The IRS allows a preset amount to be excluded from taxation for each type of per diem expense. RELATED TERMS.
Stephanie White/Photodisc/Getty Images. Per diem, which means âper dayâ in Latin, constitutes a form of payment to cover expenses incurred on business trips. Permissible expenditures for per diem pay include food, lodging and incidental expenses, which include room service, laundry, dry cleaning, tips and fees. The federal government maintains a handful of laws regarding per diem expenses, including a chart of permissible per diem rates.