Last updated: 2025 BLS data · Page refreshed:
How much does a Insulation Workers, Mechanical actually take home in Illinois?
5.0% flat rate — 26.5% effective total tax rateData: BLS OEWS 2025 + IRS/State Tax Brackets 2024 • Updated 2026-05-19
Detailed line-by-line tax calculation for a Insulation Workers, Mechanical earning $100,400 in Illinois (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $100,400 | — |
| Federal Income Tax | -$13,929 | 13.9% |
| Illinois State Income Tax | -$4,969 | 5.0% |
| Social Security (OASDI) | -$6,224 | 6.2% |
| Medicare | -$1,455 | 1.4% |
| Total Taxes | -$26,579 | 26.5% |
| Take-Home Pay | $73,820 | 73.5% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Insulation Workers, Mechanical in Illinois.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $57,350 | -$12,124 | $45,225 | 21.1% |
| 25th Percentile (P25) | $62,360 | -$13,417 | $48,942 | 21.5% |
| Median (P50) | $100,400 | -$26,579 | $73,820 | 26.5% |
| 75th Percentile (P75) | $115,280 | -$31,730 | $83,549 | 27.5% |
| 90th Percentile (P90) | $115,290 | -$31,734 | $83,555 | 27.5% |
After federal income tax ($13,929), state tax ($4,969), and FICA ($7,680), a Insulation Workers, Mechanical in Illinois takes home $73,820 per year — or $6,151 per month. The effective tax rate of 26.5% is moderate compared to the national range.
A Insulation Workers, Mechanical in Illinois loses 26.5% of gross pay to taxes — higher than the ~25% national midpoint. Of the $100,400 gross, $73,821 lands in the paycheck after federal ($13,929), state ($4,970), and FICA ($7,681) withholding.
Illinois applies a flat state income tax — every dollar of wage income is taxed at the same rate. For this Insulation Workers, Mechanical salary that contributes $4,970 to the 5.0% effective state-tax burden.
Federal tax on this Insulation Workers, Mechanical salary is $13,929 (52%), but combined state ($4,970, 19%) + FICA ($7,681, 29%) make up the other 48% of the bill.
Moving this same Insulation Workers, Mechanical salary to a zero-state-tax state would yield around $78,790 net — a gain of $4,970 (6.7%) per year versus Illinois.
For Insulation Workers, Mechanical after-tax pay, Illinois ranks #6 of 44 states — top quartile. High gross wages or low state-tax burden (or both) drive the strong ranking.
Translated into paycheck cadences, $73,821 net/year works out to $6,152/month or $2,839/bi-weekly for this Insulation Workers, Mechanical in Illinois — the numbers that actually hit a checking account after every deduction.
Where does a Insulation Workers, Mechanical keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Illinois ranks #6 out of 44 states for Insulation Workers, Mechanical after-tax take-home pay.
A Insulation Workers, Mechanical in Illinois earning a median salary of $100,400 will take home approximately $73,820 per year after federal income tax ($13,929), state income tax ($4,969), and FICA ($7,680). That is $6,151 per month or $2,839 per bi-weekly paycheck.
The effective total tax rate for a Insulation Workers, Mechanical in Illinois is 26.5%, broken down as: federal income tax 13.9%, 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 Insulation Workers, Mechanical's median salary of $100,400, the state income tax amounts to $4,969 per year, which is an effective state rate of 5.0%.
After all taxes, a Insulation Workers, Mechanical in Illinois takes home approximately $6,151 per month, or about $35.49 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 $100,400 for Insulation Workers, Mechanical 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 — $73,820/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