How Much Do Private Detectives and Investigators 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 Private Detectives and Investigators in Illinois earns $60,210 per year and takes home $47,723 ($3,977/month) — a keep-rate of 79.3%, with 1,300 employed in the state.
Free. No signup. Single filer, standard deduction — full model.
| Gross pay | $5,017.50 |
| Federal income tax | $420.43 |
| Social Security | $311.09 |
| Medicare | $72.75 |
| Illinois state income tax | $236.30 |
| You keep | $3,976.93 |
How much do Private Detectives and Investigators make in Illinois?
The median Private Detectives and Investigators in Illinois earns $60,210 per year (BLS May 2025), about $28.95 per hour.
What is that after taxes?
$60,210 gross in Illinois keeps $47,723 after federal income tax ($5,045), FICA ($4,606) and state income tax ($2,836) — $3,977 per month, a 79.3% keep-rate.
How does Illinois compare to the national median for Private Detectives and Investigators?
The Illinois median is $8,990 above the national median of $51,220.
Which state pays Private Detectives and Investigators the most?
Oregon has the highest median gross for Private Detectives and Investigators at $76,480 — but compare take-home, not gross: state taxes change the order.
Private Detectives and Investigators salary in every state · Illinois paycheck calculator · Illinois minimum wage