"...Military savers are discovering the special advantages a Roth-type Thrift Savings Plan provides to them, given that their taxable income is dampened by tax-free allowances and periodic tax-exempt combat tours.
The Roth TSP choice became available only in May 2012. TSP account balances so far average only $2,500 for all uniformed personnel. But the military participation rate in Roth TSP tells the tale. While uniformed personnel have 15 percent of all TSP accounts, they are 46 percent of Roth TSP participants...."