This page was updated on October 3, 2016.

Loan interest rate for new loans is 1.625%.
Elective Deferral Limit (I.R.C. Section 402(g)): The elective deferral limit for 2015 and 2016 is $18,000. See the Fact Sheet Annual Limit on Elective Deferrals.
I.R.C. Section 415(c) Limit: The limit for 2015 and 2016 is $53,000. 
Catch-Up Contributions: The limit on catch-up contributions for 2015 and 2016 is $6,000. If you are at least age 50 (or will become age 50 during the calendar year) and if you have made or will make the maximum amount of employee contributions for the calendar year (e.g., $18,000 in 2015 and 2016), you may also make catch-up contributions to your TSP account. See the Fact Sheet "Catch-Up Contributions."
Annuity interest rate index: 1.500% for annuities purchased in October 2016, and 1.375% for annuities purchased in September 2016. You can also view historical annuity interest rates.
Your account balance is updated each business day. To access your account balance on this web site, you will need your TSP account number (or custom user ID) and your Web password. To obtain your account balance from the ThriftLine, you will need your TSP account number and 4-digit TSP Personal Identification Number (PIN).