How Much Do Computer Systems Analysts Make in Illinois?
Median wage from BLS May 2025 — and the after-tax number the salary sites skip. Tax year 2026.
Quick answer
According to payandtaxes.com's analysis of BLS May 2025 data and 2026 tax law, the median Computer Systems Analysts in Illinois earns $101,570 per year and takes home $75,402 ($6,283/month) — a keep-rate of 74.2%, with 20,610 employed in the state.
Free. No signup. Single filer, standard deduction — full model.
| Gross pay | $8,464.17 |
| Federal income tax | $1,126.27 |
| Social Security | $524.78 |
| Medicare | $122.73 |
| Illinois state income tax | $406.91 |
| You keep | $6,283.47 |
How much do Computer Systems Analysts make in Illinois?
The median Computer Systems Analysts in Illinois earns $101,570 per year (BLS May 2025), about $48.83 per hour.
What is that after taxes?
$101,570 gross in Illinois keeps $75,402 after federal income tax ($13,515), FICA ($7,770) and state income tax ($4,883) — $6,283 per month, a 74.2% keep-rate.
How does Illinois compare to the national median for Computer Systems Analysts?
The Illinois median is $4,280 below the national median of $105,850.
Which state pays Computer Systems Analysts the most?
Rhode Island has the highest median gross for Computer Systems Analysts at $134,630 — but compare take-home, not gross: state taxes change the order.
Computer Systems Analysts salary in every state · Illinois paycheck calculator · Illinois minimum wage