Yes, the FERS pension is generally subject to federal income tax, as it is treated as taxable income. The tax you owe depends on factors like your total taxable income and other benefits, such as Social Security. Similar to other pensions, your monthly FERS benefit is added to your income and taxed according to your tax bracket. Additionally, some states tax pensions, while others do ... https://www.federalpensionadvisors.com/post/is-fers-pension-taxable