>>80% of your last year salary This was under the old retirement system called CSRS. If you entered service after 1987 you are under FERS where 20 years of ser

>>80% of your last year salary This was under the old retirement system called CSRS. If you entered service after 1987 you are under FERS where 20 years of service gets you 20% pension, and you get additional 1% for every additional year. So 40 years you get 40% pension, not great.