Last updated: 2025 BLS data · Page refreshed:
How much does a Computer User Support Specialists actually take home in Illinois?
5.0% flat rate — 21.3% effective total tax rateData: BLS OEWS 2025 + IRS/State Tax Brackets 2024 • Updated 2026-05-19
Detailed line-by-line tax calculation for a Computer User Support Specialists earning $59,860 in Illinois (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $59,860 | — |
| Federal Income Tax | -$5,199 | 8.7% |
| Illinois State Income Tax | -$2,963 | 5.0% |
| Social Security (OASDI) | -$3,711 | 6.2% |
| Medicare | -$867 | 1.5% |
| Total Taxes | -$12,741 | 21.3% |
| Take-Home Pay | $47,118 | 78.7% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Computer User Support Specialists in Illinois.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $40,440 | -$7,964 | $32,475 | 19.7% |
| 25th Percentile (P25) | $47,190 | -$9,624 | $37,565 | 20.4% |
| Median (P50) | $59,860 | -$12,741 | $47,118 | 21.3% |
| 75th Percentile (P75) | $76,660 | -$18,365 | $58,294 | 24.0% |
| 90th Percentile (P90) | $96,040 | -$25,070 | $70,969 | 26.1% |
After federal income tax ($5,199), state tax ($2,963), and FICA ($4,579), a Computer User Support Specialists in Illinois takes home $47,118 per year — or $3,926 per month. The effective tax rate of 21.3% is relatively low compared to the national range.
With an effective total rate of 21.3%, a Computer User Support Specialists in Illinois keeps $47,118 of $59,860 gross — roughly typical for U.S. middle-income earners once federal, FICA and state taxes are combined.
Illinois applies a flat state income tax — every dollar of wage income is taxed at the same rate. For this Computer User Support Specialists salary that contributes $2,963 to the 5.0% effective state-tax burden.
Federal tax on this Computer User Support Specialists salary is $5,199 (41%), but combined state ($2,963, 23%) + FICA ($4,579, 36%) make up the other 59% of the bill.
Moving this same Computer User Support Specialists salary to a zero-state-tax state would yield around $50,082 net — a gain of $2,963 (6.3%) per year versus Illinois.
Illinois ranks #31 of 51 states for Computer User Support Specialists after-tax pay — lower half of the national distribution. Either gross wages trail the national median, state tax is elevated, or both.
Translated into paycheck cadences, $47,118 net/year works out to $3,927/month or $1,812/bi-weekly for this Computer User Support Specialists in Illinois — the numbers that actually hit a checking account after every deduction.
Where does a Computer User Support Specialists keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Illinois ranks #31 out of 51 states for Computer User Support Specialists after-tax take-home pay.
A Computer User Support Specialists in Illinois earning a median salary of $59,860 will take home approximately $47,118 per year after federal income tax ($5,199), state income tax ($2,963), and FICA ($4,579). That is $3,926 per month or $1,812 per bi-weekly paycheck.
The effective total tax rate for a Computer User Support Specialists in Illinois is 21.3%, broken down as: federal income tax 8.7%, Illinois state tax 5.0%, and FICA (Social Security + Medicare) 7.6%. This assumes a single filer with the standard deduction for 2024.
Illinois has a 5.0% flat rate. On a Computer User Support Specialists's median salary of $59,860, the state income tax amounts to $2,963 per year, which is an effective state rate of 5.0%.
After all taxes, a Computer User Support Specialists in Illinois takes home approximately $3,926 per month, or about $22.65 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 2025 BLS median salary of $59,860 for Computer User Support 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 — $47,118/yr — does not include local taxes, pre-tax deductions (401k, HSA), or tax credits.
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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