Q. I am 59-years-old with 10 years of FERS service. Can I make a one-time, lump-sum withdrawal now and then make withdrawals monthly when I retire at 62?
A. When you reach age 59 1/2, you may take an age-based, in-service, partial lump-sum withdrawal from your TSP account. You may then initiate monthly payments from your account — which are considered a form of full withdrawal — after you retire.