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.
To keep things simple, the Internal Revenue Service (IRS) allows the use of per diem (Latin meaning âfor each dayâ) rates. Per diem rates are the equivalent of a fixed amount paid to employees to compensate for lodging, meals, and incidental expenses incurred when traveling on business rather than using actual expenses. These rates are also used for federal income tax purposes.