Understanding Minimum Retirement Age (MRA) for FERS Postponed Retirement The Minimum Retirement Age (MRA) is a crucial factor in determining eligibility for FERS postponed retirement. It ranges from 55 to 57, depending on your year of birth. Reaching your MRA with at least 10 years of creditable service makes you eligible for postponed retirement. However, if you claim your benefits... https://www.federalpensionadvisors.com/post/fers-postponed-retirement