How much does a Probation Officers and Correctional Treatment Specialists actually take home in Illinois?
5.0% flat rate — 22.3% effective total tax rateData: BLS OEWS 2024 + IRS/State Tax Brackets 2024 • Updated 2026-04-06
Some links are affiliate links. See our disclosure.
Detailed line-by-line tax calculation for a Probation Officers and Correctional Treatment Specialists earning $66,150 in Illinois (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $66,150 | — |
| Federal Income Tax | -$6,394 | 9.7% |
| Illinois State Income Tax | -$3,274 | 5.0% |
| Social Security (OASDI) | -$4,101 | 6.2% |
| Medicare | -$959 | 1.5% |
| Total Taxes | -$14,728 | 22.3% |
| Take-Home Pay | $51,421 | 77.7% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Probation Officers and Correctional Treatment Specialists in Illinois.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $47,080 | -$9,597 | $37,482 | 20.4% |
| 25th Percentile (P25) | $51,970 | -$10,800 | $41,169 | 20.8% |
| Median (P50) | $66,150 | -$14,728 | $51,421 | 22.3% |
| 75th Percentile (P75) | $89,190 | -$22,700 | $66,489 | 25.5% |
| 90th Percentile (P90) | $98,590 | -$25,953 | $72,636 | 26.3% |
After federal income tax ($6,394), state tax ($3,274), and FICA ($5,060), a Probation Officers and Correctional Treatment Specialists in Illinois takes home $51,421 per year — or $4,285 per month. The effective tax rate of 22.3% is relatively low compared to the national range.
Where does a Probation Officers and Correctional Treatment Specialists keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Illinois ranks #16 out of 48 states for Probation Officers and Correctional Treatment Specialists after-tax take-home pay.
A Probation Officers and Correctional Treatment Specialists in Illinois earning a median salary of $66,150 will take home approximately $51,421 per year after federal income tax ($6,394), state income tax ($3,274), and FICA ($5,060). That is $4,285 per month or $1,977 per bi-weekly paycheck.
The effective total tax rate for a Probation Officers and Correctional Treatment Specialists in Illinois is 22.3%, broken down as: federal income tax 9.7%, Illinois state tax 5.0%, and FICA (Social Security + Medicare) 7.7%. This assumes a single filer with the standard deduction for 2024.
Illinois has a 5.0% flat rate. On a Probation Officers and Correctional Treatment Specialists's median salary of $66,150, the state income tax amounts to $3,274 per year, which is an effective state rate of 5.0%.
After all taxes, a Probation Officers and Correctional Treatment Specialists in Illinois takes home approximately $4,285 per month, or about $24.72 per hour (based on a standard 2,080-hour work year). These figures assume a single filer, standard deduction, and no additional pre-tax deductions.
We start with the 2024 BLS median salary of $66,150 for Probation Officers and Correctional Treatment Specialists in Illinois, then subtract: federal income tax using 2024 IRS brackets ($14,600 standard deduction), Illinois state income tax (5.0% flat rate), Social Security (6.2% up to $168,600), and Medicare (1.45%). The result — $51,421/yr — does not include local taxes, pre-tax deductions (401k, HSA), or tax credits.
This estimate assumes a single filer using the 2024 standard deduction ($14,600), with W-2 employment income only. It does not account for: itemized deductions, tax credits (e.g. earned income credit, child tax credit), local/city taxes, pre-tax contributions (401k, HSA, FSA), self-employment tax, or additional income sources. Actual take-home pay may differ. Consult a tax professional for personalized advice.
Our Methodology · Data Sources · Salary: BLS OEWS · Tax: IRS + State DOR