To effectively manage your retirement income, it's crucial to understand how taxes apply to your federal benefits. Your FERS annuity, Social Security benefits, and TSP withdrawals are all subject to federal income tax, taxed as ordinary income according to your tax bracket. Below, we outline how each source is taxed, beginning with your FERS annuity. https://www.federalpensionadvisors.com/post/understanding-taxes-on-fers-annuity