Federal employees choosing between the Civil Service Retirement System (CSRS) and the Federal Employees Retirement System (FERS) should consider their unique features. CSRS, for those hired before 1984, offers a more generous pension without Social Security or Thrift Savings Plan (TSP) participation. FERS, applicable to employees hired after 1983, includes a three-part system: a basic... https://www.federalpensionadvisors.com/post/csrs-vs-fers