FEDERAL EMPLOYEES · FERS / TSP / FEHB
The federal package works only when the pension, TSP, Social Security, and FEHB land on compatible dates.
A correct high-3 estimate with the wrong retirement category can still be materially wrong. Immediate, postponed, and deferred retirement are not synonyms—and health coverage can be the expensive difference.
Standard FERS formulaAt age 62 or older with at least 20 years, the basic formula uses 1.1% × high-3 × service. Otherwise it generally uses 1.0%. Eligibility, reductions, and special-category service are separate tests.