Salaries › IT Support Specialist › Illinois
IT Support Specialist Salary in Illinois (2026)
$28.78 per hour · take-home ≈ $47,314/year ($3,943/month) for a single filer
IT Support Specialist pay range in Illinois
| Percentile | Annual wage | Meaning |
| 10th percentile (entry) | $40,440 | Lowest-paid 10% earn less than this |
| 25th percentile | $47,190 | A quarter earn less |
| Median (50th) | $59,860 | Half earn more, half earn less |
| 75th percentile | $76,660 | Top quarter starts here |
| 90th percentile (top) | $96,040 | Highest-paid 10% earn more than this |
BLS reports 26,060 IT Support Specialist jobs in Illinois (occupation code 15-1232, “Computer User Support Specialists”).
Gross vs. take-home in Illinois
A median IT Support Specialist salary of $59,860 doesn’t all reach your bank account. After federal income tax, Social Security, and Medicare, plus Illinois state income tax, a single filer keeps about $47,314 — an effective tax rate of 21.0%.
| Gross (median) | $59,860 |
| Federal income tax | −$5,003 |
| Social Security + Medicare | −$4,579 |
| Illinois state income tax | −$2,963 |
| Take-home (annual) | $47,314 |
| Take-home (monthly) | $3,943 |
Want your exact numbers — married, 401(k), different salary? Use the free Illinois paycheck calculator on PaycheckTally.
Frequently asked questions
- How much does a IT Support Specialist make in Illinois?
- The median IT Support Specialist salary in Illinois is $59,860 per year ($28.78 per hour) according to the latest BLS data. The middle 50% earn between $47,190 and $76,660.
- What is the take-home pay for a IT Support Specialist in Illinois?
- On the median salary of $59,860, a single filer in Illinois takes home about $47,314 per year ($3,943 per month) after federal tax, FICA, and state income tax — an effective tax rate of 21.0%.
- How many IT Support Specialist jobs are there in Illinois?
- BLS counts 26,060 IT Support Specialist jobs in Illinois in the latest survey (May 2025).
Top-paying states for IT Support Specialists
Other salaries in Illinois
Sources and methodology
Wage and employment figures: BLS OEWS May 2025 (state file, released April 2026) — the U.S. Bureau of Labor Statistics Occupational Employment and Wage Statistics survey, the most authoritative public salary dataset. Take-home estimate: 2026 federal brackets, FICA, and verified Illinois state tax rules (single filer, standard deduction, no credits or local taxes). Estimates only — not financial advice.
- BLS OEWS — official occupational wage data.
- PaycheckTally — interactive 2026 take-home calculator for Illinois.