Teaching Assistant salary in Illinois
Updated Updated for 2026 tax law
A teaching assistant in Illinois earns a median of $36,990 a year ($17.78/hour equivalent), 0.6% above the national median of $36,780. Illinois ranks #21 of 51 states. About 64,210 people do this job in Illinois.
Take-home pay in Illinois
At the Illinois median, a single filer keeps about $30,215 a year after federal, FICA and Illinois taxes — $1,162 every two weeks. Try your own numbers with the Illinois paycheck calculator.
- Gross pay
- $1,422.69
- Federal income tax
- −$86.88
- Social Security (6.2%)
- −$88.21
- Medicare (1.45%)
- −$20.63
- Illinois income tax
- −$64.85
- Take-home pay
- $1,162.12
Annual breakdown
- Gross
- $36,990
- Federal
- $2,259
- FICA
- $2,830
- State + local
- $1,686
- Net
- $30,215
- Marginal federal rate
- 12.0%
- Marginal state rate
- 5.0%
2026 federal brackets (Rev. Proc. 2025-32) and 2026 state rules. Estimates assume wages are your only income and use annual liability, so your actual withholding can differ slightly.
How Illinois compares
| Rank | State | Median salary |
|---|---|---|
| #1 | Washington | $49,120 |
| #2 | District of Columbia | $46,920 |
| #3 | Maine | $46,750 |
| #4 | California | $46,490 |
| #5 | Vermont | $43,800 |
| #21 | Illinois | $36,990 |
| #49 | Louisiana | $27,400 |
| #50 | Mississippi | $25,840 |
| #51 | Alabama | $24,070 |
See the national teaching assistant salary page for the full pay range and all states.
BLS occupation: Teaching Assistants, Except Postsecondary (SOC 25-9045), May 2025, state estimates.
Frequently asked questions
How much does a teaching assistant make in Illinois?
The median salary is $36,990 a year and the average is $38,950 (BLS May 2025).
Is Illinois a good state for teaching assistants?
Illinois ranks #21 of 51 states for median pay in this job, 1% above the national median of $36,780.
What is $36,990 after taxes in Illinois?
About $30,215 a year ($1,162 every two weeks) for a single filer in 2026.
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Estimates for information only — not tax, legal or financial advice.