The gist
The TRS SSP is a separate optional 457(b) account that supplements the pension. Eligible newer members at participating employers can be automatically enrolled at 3% unless they opt out or change the election.Quick facts
- The Illinois TRS Supplemental Savings Plan is a 457(b) deferred compensation plan separate from the defined-benefit pension
- Eligible members first employed in a TRS-covered position on or after January 1, 2023 can be automatically enrolled at 3% of pre-tax compensation
- Active full-time or part-time contractual TRS members at participating employers may participate, while retired and inactive members cannot contribute
What the SSP adds to the regular TRS pension
The Illinois TRS Supplemental Savings Plan is a separate 457(b) deferred compensation account designed to supplement the defined-benefit pension. Pension contributions and pension service still operate under the regular TRS rules. SSP contributions instead go into an individual account administered by Voya, and the participant chooses how those assets are invested. The account therefore adds a savings component without replacing the pension formula or converting TRS into a defined-contribution-only system.
Eligibility is narrower than simply being connected to a school. TRS says active full-time or part-time contractual members of participating employers can participate. Retired and inactive members are not eligible to contribute. Employers must adopt the SSP for their eligible employees to use it. Before changing a contribution election, first verify that your employer appears on TRS’s participating-employer list and that TRS classifies your position as SSP-eligible.
How automatic enrollment works for newer TRS members
TRS implemented automatic enrollment for eligible members first employed in a TRS-covered position on or after January 1, 2023. If the employer participates and the member does not cancel or make another election before the automatic-enrollment effective date, TRS says 3% of pre-tax compensation is deferred to the SSP each pay period. New members receive notices and generally have 30 days after their information is processed to make an enrollment or opt-out choice before automatic deductions begin.
Automatic enrollment does not make participation mandatory. An eligible member can opt out or choose a different contribution election under the plan process. TRS also states that automatically enrolled participants may have a special 90-day window from the first automatic contribution to request a permissible withdrawal of those automatic contributions, subject to the plan’s rules. That special withdrawal is different from the general distribution rules that apply later.
| Feature | Current SSP rule | What to check |
|---|---|---|
| Plan type | 457(b) deferred compensation plan | Separate from the TRS pension |
| Automatic-enrollment group | Eligible members first employed on/after Jan. 1, 2023 | Employer must participate |
| Default contribution | 3% of pre-tax compensation | Member can opt out or change election |
| Pre-enrollment decision window | Generally 30 days after processing/notice | Use the effective date in your notice |
| Permissible withdrawal | Up to 90 days after first automatic contribution for eligible auto-enrolled participants | Different from normal withdrawal rules |
How to review an SSP election before changing payroll
Begin with the actual payroll percentage or dollar election shown in the SSP participant system. If you work for more than one participating employer, TRS plan materials warn that a contribution election can apply across eligible compensation at multiple employers, so review the combined deduction rather than looking at one paycheck in isolation. Also confirm whether your contributions are pre-tax, Roth after-tax if available under your election, or a mix permitted by the current plan.
Then review investment direction and plan fees in the current SSP materials. Automatically enrolled contributions default to the target-date fund closest to the participant’s expected retirement date at age 65 unless the participant changes the investment. The plan highlights also describe administrative fees and distribution options that can change over time. Use the current participant disclosure rather than an old flyer when deciding how the account fits beside the guaranteed pension benefit.
SSP versus a district 403(b)
Many Illinois districts also offer a 403(b) through outside vendors. The SSP's advantages are low, institutional-level fees and a single statewide plan you keep across districts. Some district 403(b) products carry high fees and surrender charges, especially annuity-based ones.
If your district offers an SSP match, prioritize the SSP at least up to the match. Beyond that, compare fees: the SSP is usually the cheaper home for retirement savings, but a well-run district 457(b) or low-cost 403(b) can be fine too.
Checklist before you decide
- Check whether your district participates in the SSP.
- If auto-enrolled, decide whether 3% is the right rate for you.
- Find out if your district offers an SSP employer match.
- Compare SSP fees with any district 403(b) you are using.
- Increase your contribution rate whenever your salary rises.
Questions people ask
Is the Illinois TRS SSP the same as my pension?
No. The SSP is a separate 457(b) savings account that you fund and invest. Your pension is a formula based on service and salary. Contributing to the SSP does not change your pension.
Am I automatically enrolled in the SSP?
If you were first employed in a TRS-covered position on or after January 1, 2023 and your district participates, you are auto-enrolled at 3% of pay unless you opt out. Members hired earlier can enroll voluntarily.
How much can I contribute to the SSP in 2026?
The 2026 basic limit is $24,500. Members 50 and older can add $8,000; members ages 60–63 can add $11,250 instead of $8,000.
Official sources
Sources were reviewed on September 1, 2026. Rules and member records maintained by the retirement system control.
Illinois TRS — Supplemental Savings PlanOfficial source ↗Illinois TRS — SSP member FAQsOfficial source ↗Illinois TRS — SSP employer FAQsOfficial source ↗This article provides general educational information. It is not a benefit determination or financial, tax, or legal advice. Confirm account-specific information with the retirement system.