TSP Rule of 55 vs Traditional Retirement Withdrawals Traditional retirement withdrawals from the TSP typically begin at age 59½ to avoid penalties. However, the TSP Rule of 55 provides a unique advantage for early retirees. If you separate from service in or after the year you turn 55, you can access your funds without penalty. This contrasts with other plans like IRAs, which still ... https://www.federalpensionadvisors.com/post/tsp-rule-of-55