FBI employees accrue annual leave (vacation) and sick leave throughout their careers. Upon retirement, any unused sick leave is converted into additional service credit, which can increase their pension amount. For example, a full year of unused sick leave can add 1%–1.7% to an agent’s FERS pension. Annual leave, on the other hand, is paid out as a lump sum, providing a financial cush... https://www.federalpensionadvisors.com/post/fbi-retirement-benefits