Your FERS pension is taxable at the federal level since it is considered income. The taxes you pay are determined by your total taxable income, including Social Security or other benefits. The monthly pension amount is added to your income and taxed according to your bracket. State taxation varies; some states tax pensions, while others do not. Understanding tax laws is a critical asp... https://www.federalpensionadvisors.com/post/is-fers-pension-taxable