Federal Retirement Thrift Investment Board
The Federal Retirement Thrift Investment Board administers the Thrift Savings Plan, a tax-deferred retirement account similar to a 401(k).
Phone number
1-404-233-4400
Toll-free number
1-877-968-3778
TTY
1-877-847-4385
Main address
Thrift Savings PlanPO Box 385021
Birmingham, AL 35238
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