Military.com | By Scott Spiker The Thrift Savings Plan is getting a big makeover, giving military families a powerful new tool to invest for retirement. For years, the Thrift Savings Plan (TSP) has offered military members and federal employees an attractive set of low-cost investment options for building up retirement funds during their working years. Now, the TSP Modernization Act is providing a new set of withdrawal options for generating flexible income in retirement. Effective Sept. 15, 2019, TSP participants can: Make multiple withdrawals Remain in TSP after age 70.5 Schedule flexible payments For those in the military, this is the second significant enhancement to the TSP in the last two years. With the implementation of the Blended Retirement System on Jan. 1, 2018, service members began receiving an automatic contribution to their TSP account equal to 1% of their base pay and matching contributions on the first 5% of their own pay invested in the TSP. (They earn a dollar-for-dollar match for the first 3% and 50 cents on the dollar up to the next 2%.)