tsp average rate of return
To learn more about the TSP Summary of Returns, go to https://www.tsp.gov/investmentfunds/returns/returnSummary.shtml. The long term rate of investment return used by the Civil Service Retirement Fund Board of Actuaries is 5.75%. We set the default rate for before retirement at 5.75% and rate of return after retirement at 4.0% with a valid range of 0% to 20% for each. You should choose assumptions--or range of assumptions--that are right for you based on your particular circumstances.