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.
Reimbursement on a per diem basis is the actual payment of a flat sum to cover meal and incidental expenses each day in lieu of actual costs. With per diem, the traveler is not required to provide receipts for meals and incidentals.ne option is for the traveler to use the actual meal expense method for the entire trip. If his/her colleague(s) is claiming the per diem method then the total daily per diem requested by the colleague(s) must be reduced for the meal (15% breakfast, 25% lunch, 60% dinner).