With the enactment of Public Act 19-117 the Teachers' Retirement Board of Directors  adopted an interest rate of 4.00% to be credited to the Regular Account and the Supplemental Account (pre 1989 1% Contributions, if applicable).  This interest rate will be applied to the June 30th balances of the prior year.  This rate will be applied to regular and supplemental account balances on a prorated basis if withdrawn.

Effective June 21, 2023, the Teachers’ Retirement Board of Directors adopted a simplification to the calculation of the rate of interest credited to voluntary accounts which relies directly on the actual fiscal year to date rate of return published by the State Treasurer’s office and the 6.9% assumed rate of return of the Plan.  The Board adopted an investment rate of return of 9.80% to be applied to Voluntary Account balances.  This investment rate of return will be applied to the June 30th balances of the prior year.