Illinois public school teachers do not get Social Security from their teaching jobs. Their teaching salaries are not subject to the Social Security payroll tax, and classroom years do not build Social Security credits. Teachers who worked in other Social Security-covered jobs can still collect federal benefits based on that work, and as of January 2025 those benefits are no longer reduced because of an Illinois teaching pension.
Why Teaching in Illinois Doesn’t Earn Social Security
Federal law lets state and local governments keep employees out of Social Security if they are covered by a qualifying public pension. Illinois uses that option for its public school teachers. Educators outside Chicago participate in the Teachers’ Retirement System (TRS); Chicago public school teachers participate in the Chicago Teachers’ Pension Fund (CTPF).1Chicago Teachers’ Pension Fund. Pension Fundamentals
Neither group pays the 6.2% Social Security tax on teaching wages. TRS members instead contribute 9% of gross creditable earnings to the state pension: 7.5% for the retirement annuity, 0.5% for cost-of-living increases, and 1% for survivor benefits.2Teachers’ Retirement System of the State of Illinois. Chapter 4: Contributions Because nothing goes to Social Security, teaching years generate no federal retirement credits. The pension is the retirement benefit for that work.
When Illinois Teachers Do Qualify for Social Security
Plenty of Illinois teachers qualify for Social Security anyway, just not because of teaching. Any job that withholds Social Security tax counts: work before entering the classroom, summer or evening jobs in the private sector, or a second career after leaving education. Those wages build credits like anyone else’s.
You need 40 credits to qualify for Social Security retirement benefits, which works out to roughly 10 years of covered work. In 2026, one credit is earned for every $1,890 in covered wages, with a maximum of four credits per year — so $7,560 in covered earnings during 2026 gives you the full four.3Social Security Administration. Social Security Credits and Benefit Eligibility Your eventual monthly payment is calculated from your highest 35 years of covered earnings. A teacher with 10 to 15 years of covered work will draw a smaller Social Security check than someone who spent a full career in Social Security-covered employment, but the check is real and it is theirs.
The 2025 Repeal of WEP and GPO
For decades, two federal rules cut into Social Security payments for people who also received a pension from non-covered work like Illinois teaching. On January 5, 2025, the Social Security Fairness Act was signed into law, repealing both rules retroactive to January 2024.4Social Security Administration. Social Security Fairness Act: Windfall Elimination Provision (WEP) and Government Pension Offset (GPO)
The Windfall Elimination Provision
The WEP reduced Social Security retirement benefits for anyone who also earned a pension from non-covered work. The standard Social Security formula replaces a higher percentage of earnings for lower earners. A teacher’s covered wage record often looked small because it captured only pre-teaching or part-time work, so the formula treated them as low earners and paid proportionally more. The WEP lowered that percentage and could shave several hundred dollars off a monthly payment.5Social Security Administration. Program Explainer: Windfall Elimination Provision
The Government Pension Offset
The GPO hit spousal and survivor benefits. If you received a non-covered pension and were also eligible for Social Security on a spouse’s record, the GPO reduced that spousal or survivor benefit by two-thirds of your monthly pension. A teacher with a $3,000 TRS pension faced a $2,000 offset, which was enough to wipe out a $1,500 spousal benefit entirely.6Social Security Administration. Program Explainer: Government Pension Offset
What Changed for Illinois Teachers
Both provisions are gone. Because the repeal reaches back to January 2024, the Social Security Administration recalculated benefits for everyone previously affected. By mid-2025, SSA had issued more than 3.1 million payments totaling $17 billion in retroactive adjustments. Affected beneficiaries received a lump sum covering the increase from January 2024 forward, plus a higher ongoing monthly payment.4Social Security Administration. Social Security Fairness Act: Windfall Elimination Provision (WEP) and Government Pension Offset (GPO)
If you are a retired Illinois teacher whose Social Security had been reduced under WEP or GPO, your payments should already reflect the increase. If you are still teaching and plan to claim Social Security later, your TRS or CTPF pension will not reduce that federal benefit.
Medicare Is Separate — And Teachers Still Get It
Medicare works differently from Social Security retirement, and this trips people up. Federal law requires all state and local government employees hired after March 31, 1986, to pay the 1.45% Medicare Hospital Insurance tax on their wages, with a matching 1.45% from the school district.7eCFR. 42 CFR 406.15 – Special Provisions Applicable to Medicare Qualified Government Employment Those payments earn credit toward premium-free Medicare Part A at age 65. Even a teacher with no Social Security retirement benefit at all still gets Medicare on the same terms as any other worker.
Teachers hired before April 1, 1986, who never paid Medicare taxes through any job may not automatically qualify for premium-free Part A. In that case, Part A can be purchased. The 2026 monthly premium is either $311 or $565, depending on how many quarters of Medicare-taxed work you or your spouse accumulated.8Medicare. Costs
What TRS Provides in Place of Social Security
Because teaching wages do not earn federal credits, Illinois teachers cannot claim Social Security Disability Insurance based on their classroom work, and their survivors cannot claim Social Security survivor benefits from it either. TRS provides its own versions of both.
If a non-work-related condition leaves you unable to teach, TRS pays a temporary disability benefit equal to 40% of your contract salary rate. Both Tier 1 and Tier 2 members can qualify if they meet the service requirements.9Teachers’ Retirement System of the State of Illinois. Chapter 14: Disability Benefits
TRS also pays death and survivor benefits. A dependent beneficiary, typically a spouse of at least one year, a minor child, or a dependent parent, can choose between a lump sum and a monthly survivor benefit. A non-dependent beneficiary receives only a lump sum. For an annuitant or an inactive member with 20 or more years of service, an eligible surviving spouse’s monthly benefit is generally about two-thirds of the member’s earned benefit at the time of death.10Teachers’ Retirement System of the State of Illinois. Chapter 15: Death Benefits These payments come from TRS, not from SSA, and they exist precisely because federal survivor and disability coverage is not built during teaching years.