Carpe_DiemSimplified per-diem increase for post-Sept. 30, 2013 travel.  An employer may pay a per-diem amount to an employee on business-travel status instead of reimbursing actual substantiated expenses for away-from-home lodging, meal and incidental expenses (M&IE). If the rate paid doesn’t exceed IRS-approved maximums, and the employee provides simplified substantiation, the reimbursement isn’t subject to income- or payroll-tax withholding and isn’t reported on the employee’s Form W-2. In general, the IRS-approved per-diem maximum is the GSA per-diem rate paid by the federal government to its workers on travel status. This rate varies from locality to locality. Instead of using actual per-diems, employers may use a simplified “high-low” per-diem, under which there is one uniform per-diem rate for all “high-cost” areas within the continental U.S. (CONUS), and another per-diem rate for all other areas within CONUS. The IRS released the “high-low” simplified per-diem rates for post-Sept. 30, 2013 travel. The high-cost area per-diem increases $9 to $251, and the low-cost area per-diem increases $7 to $170.