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Chapter 7: Payment Options
Eligible optional service or repayment of refunds purchases before retirement will add to your service credits for retirement eligibility.
Several options are available to pay for optional service or refunds. The table below will help you select an option.
Employer Guide Chapter 7: Optional Service Credit & Payment Options
Revised August 2024
Credit for several types of optional service can be obtained by verifying the service and making a contribution to TRS. In general, the amount due for the service credit is equal to the contributions that would have been required if the service had been earned under TRS plus interest.
TRS Certifies $6.04 Billion State Contribution for Fiscal Year 2024
SPRINGFIELD, IL – The Teachers’ Retirement System Board of Trustees certified a $6.04 billion state government contribution for the System in fiscal year 2024.
Tier 1 Retired
Tier 1 members in Teachers' Retirement System of the State of Illinois first contributed to TRS before Jan. 1, 2011 or have pre-existing creditable service with a reciprocal pension system prior to Jan. 1, 2011. Retired TRS Tier 1 members collect a lifetime monthly retirement benefit. Members cannot outlive their benefits.