Last updated: 2025 BLS data · Page refreshed:
How much does a Computer Network Support Specialists actually take home in Illinois?
5.0% flat rate — 22.7% 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 Network Support Specialists earning $68,530 in Illinois (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $68,530 | — |
| Federal Income Tax | -$6,917 | 10.1% |
| Illinois State Income Tax | -$3,392 | 5.0% |
| Social Security (OASDI) | -$4,248 | 6.2% |
| Medicare | -$993 | 1.5% |
| Total Taxes | -$15,552 | 22.7% |
| Take-Home Pay | $52,977 | 77.3% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Computer Network Support Specialists in Illinois.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $47,510 | -$9,703 | $37,806 | 20.4% |
| 25th Percentile (P25) | $58,670 | -$12,448 | $46,221 | 21.2% |
| Median (P50) | $68,530 | -$15,552 | $52,977 | 22.7% |
| 75th Percentile (P75) | $84,410 | -$21,046 | $63,363 | 24.9% |
| 90th Percentile (P90) | $104,950 | -$28,153 | $76,796 | 26.8% |
After federal income tax ($6,917), state tax ($3,392), and FICA ($5,242), a Computer Network Support Specialists in Illinois takes home $52,977 per year — or $4,414 per month. The effective tax rate of 22.7% is relatively low compared to the national range.
With an effective total rate of 22.7%, a Computer Network Support Specialists in Illinois keeps $52,978 of $68,530 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 Network Support Specialists salary that contributes $3,392 to the 5.0% effective state-tax burden.
Federal tax on this Computer Network Support Specialists salary is $6,918 (44%), but combined state ($3,392, 22%) + FICA ($5,243, 34%) make up the other 56% of the bill.
Moving this same Computer Network Support Specialists salary to a zero-state-tax state would yield around $56,370 net — a gain of $3,392 (6.4%) per year versus Illinois.
Illinois ranks #32 of 48 states for Computer Network 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, $52,978 net/year works out to $4,415/month or $2,038/bi-weekly for this Computer Network Support Specialists in Illinois — the numbers that actually hit a checking account after every deduction.
Where does a Computer Network Support Specialists keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Illinois ranks #32 out of 48 states for Computer Network Support Specialists after-tax take-home pay.
A Computer Network Support Specialists in Illinois earning a median salary of $68,530 will take home approximately $52,977 per year after federal income tax ($6,917), state income tax ($3,392), and FICA ($5,242). That is $4,414 per month or $2,037 per bi-weekly paycheck.
The effective total tax rate for a Computer Network Support Specialists in Illinois is 22.7%, broken down as: federal income tax 10.1%, 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 Computer Network Support Specialists's median salary of $68,530, the state income tax amounts to $3,392 per year, which is an effective state rate of 5.0%.
After all taxes, a Computer Network Support Specialists in Illinois takes home approximately $4,414 per month, or about $25.47 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 $68,530 for Computer Network 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 — $52,977/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