This page was updated on March 26, 2015.

Loan interest rate for new loans is 1.875%.
Elective Deferral Limit (I.R.C. Section 402(g)): The elective deferral limit for 2015 is $18,000. For 2014 it was $17,500. See the Fact Sheet Annual Limit on Elective Deferrals.
I.R.C. Section 415(c) Limit: The limit for 2015 is $53,000. For 2014 it was $52,000.
Catch-Up Contributions: The limit on catch-up contributions for 2015 is $6,000. For 2014 it was $5,500. 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 $17,500 in 2014), you may also make catch-up contributions to your TSP account. See the Fact Sheet "Catch-Up Contributions."
Annuity interest rate index: 2.125% for annuities purchased in April 2015, and 2.000% for annuities purchased in March 2015. 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).