Software Engineer salary in Illinois
Updated Updated for 2026 tax law
A Software Engineer in Illinois earns a median of $132,110 a year ($63.51/hour equivalent), 2.8% below the national median of $135,980. Illinois ranks #16 of 50 states. About 56,310 people do this job in Illinois.
Take-home pay in Illinois
At the Illinois median, a single filer keeps about $95,169 a year after federal, FICA and Illinois taxes — $3,660 every two weeks. Try your own numbers with the Illinois paycheck calculator.
- Gross pay
- $5,081.15
- Federal income tax
- −$786.17
- Social Security (6.2%)
- −$315.03
- Medicare (1.45%)
- −$73.68
- Illinois income tax
- −$245.95
- Take-home pay
- $3,660.33
Annual breakdown
- Gross
- $132,110
- Federal
- $20,440
- FICA
- $10,106
- State + local
- $6,395
- Net
- $95,169
- Marginal federal rate
- 24.0%
- 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 | California | $174,410 |
| #2 | Washington | $166,540 |
| #3 | New York | $166,180 |
| #4 | Massachusetts | $165,210 |
| #5 | Oregon | $142,720 |
| #16 | Illinois | $132,110 |
| #48 | Louisiana | $102,800 |
| #49 | South Dakota | $96,310 |
| #50 | Mississippi | $95,330 |
See the national Software Engineer salary page for the full pay range and all states.
BLS occupation: Software Developers (SOC 15-1252), May 2025, state estimates.
Frequently asked questions
How much does a Software Engineer make in Illinois?
The median salary is $132,110 a year and the average is $136,540 (BLS May 2025).
Is Illinois a good state for software developers?
Illinois ranks #16 of 50 states for median pay in this job, 3% below the national median of $135,980.
What is $132,110 after taxes in Illinois?
About $95,169 a year ($3,660 every two weeks) for a single filer in 2026.
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Estimates for information only — not tax, legal or financial advice.