Last updated: 2025 BLS data · Page refreshed:
How much does a Materials Engineers actually take home in Illinois?
5.0% flat rate — 28.3% effective total tax rateData: BLS OEWS 2025 + IRS/State Tax Brackets 2024 • Updated 2026-05-19
Detailed line-by-line tax calculation for a Materials Engineers earning $126,620 in Illinois (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $126,620 | — |
| Federal Income Tax | -$19,927 | 15.7% |
| Illinois State Income Tax | -$6,267 | 5.0% |
| Social Security (OASDI) | -$7,850 | 6.2% |
| Medicare | -$1,835 | 1.5% |
| Total Taxes | -$35,881 | 28.3% |
| Take-Home Pay | $90,738 | 71.7% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Materials Engineers in Illinois.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $71,780 | -$16,676 | $55,103 | 23.2% |
| 25th Percentile (P25) | $91,570 | -$23,524 | $68,045 | 25.7% |
| Median (P50) | $126,620 | -$35,881 | $90,738 | 28.3% |
| 75th Percentile (P75) | $136,710 | -$39,574 | $97,135 | 28.9% |
| 90th Percentile (P90) | $165,710 | -$50,188 | $115,521 | 30.3% |
After federal income tax ($19,927), state tax ($6,267), and FICA ($9,686), a Materials Engineers in Illinois takes home $90,738 per year — or $7,561 per month. The effective tax rate of 28.3% is moderate compared to the national range.
A Materials Engineers in Illinois loses 28.3% of gross pay to taxes — higher than the ~25% national midpoint. Of the $126,620 gross, $90,739 lands in the paycheck after federal ($19,927), state ($6,268), and FICA ($9,686) withholding.
Illinois applies a flat state income tax — every dollar of wage income is taxed at the same rate. For this Materials Engineers salary that contributes $6,268 to the 5.0% effective state-tax burden.
Federal income tax ($19,927) accounts for 56% of the total tax bill — the single largest deduction. FICA adds $9,686 (27%), and state tax the remaining $6,268 (17%).
The state-tax gap is substantial: a Materials Engineers earning this gross in a no-income-tax state would net about $97,006 — an extra $6,268 (6.9%) annually compared with Illinois.
For Materials Engineers after-tax pay, Illinois ranks #9 of 45 states — top quartile. High gross wages or low state-tax burden (or both) drive the strong ranking.
Translated into paycheck cadences, $90,739 net/year works out to $7,562/month or $3,490/bi-weekly for this Materials Engineers in Illinois — the numbers that actually hit a checking account after every deduction.
Where does a Materials Engineers keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Illinois ranks #9 out of 45 states for Materials Engineers after-tax take-home pay.
A Materials Engineers in Illinois earning a median salary of $126,620 will take home approximately $90,738 per year after federal income tax ($19,927), state income tax ($6,267), and FICA ($9,686). That is $7,561 per month or $3,489 per bi-weekly paycheck.
The effective total tax rate for a Materials Engineers in Illinois is 28.3%, broken down as: federal income tax 15.7%, 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 Materials Engineers's median salary of $126,620, the state income tax amounts to $6,267 per year, which is an effective state rate of 5.0%.
After all taxes, a Materials Engineers in Illinois takes home approximately $7,561 per month, or about $43.62 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 $126,620 for Materials Engineers 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 — $90,738/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