This document is about a performance audit conducted by the U.S. Department of Labor's Employee Benefits Security Administration on certain Thrift Savings Plan (TSP) operations at the Defense Finance and Accounting Service (DFAS). The audit covered DFAS's role as a payroll service provider for active duty uniformed service members of the U.S. Army, U.S. Air Force, and U.S. Navy. The audit objectives were to determine if DFAS implemented procedures to accurately and timely process TSP contributions, loans, separations, and other related activities, as well as test compliance with relevant laws and regulations. The report includes findings, recommendations, and the status of prior recommendations.