Last updated: 2025 BLS data · Page refreshed:
How much does a Bioengineers and Biomedical Engineers actually take home in Illinois?
5.0% flat rate — 25.5% effective total tax rateData: BLS OEWS 2025 + IRS/State Tax Brackets 2024 • Updated 2026-05-19
Detailed line-by-line tax calculation for a Bioengineers and Biomedical Engineers earning $89,520 in Illinois (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $89,520 | — |
| Federal Income Tax | -$11,535 | 12.9% |
| Illinois State Income Tax | -$4,431 | 4.9% |
| Social Security (OASDI) | -$5,550 | 6.2% |
| Medicare | -$1,298 | 1.4% |
| Total Taxes | -$22,814 | 25.5% |
| Take-Home Pay | $66,705 | 74.5% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Bioengineers and Biomedical Engineers in Illinois.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $48,370 | -$9,915 | $38,454 | 20.5% |
| 25th Percentile (P25) | $49,040 | -$10,079 | $38,960 | 20.6% |
| Median (P50) | $89,520 | -$22,814 | $66,705 | 25.5% |
| 75th Percentile (P75) | $112,400 | -$30,731 | $81,668 | 27.3% |
| 90th Percentile (P90) | $138,110 | -$40,086 | $98,023 | 29.0% |
After federal income tax ($11,535), state tax ($4,431), and FICA ($6,848), a Bioengineers and Biomedical Engineers in Illinois takes home $66,705 per year — or $5,558 per month. The effective tax rate of 25.5% is moderate compared to the national range.
With an effective total rate of 25.5%, a Bioengineers and Biomedical Engineers in Illinois keeps $66,705 of $89,520 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 Bioengineers and Biomedical Engineers salary that contributes $4,431 to the 4.9% effective state-tax burden.
Federal tax on this Bioengineers and Biomedical Engineers salary is $11,535 (51%), but combined state ($4,431, 19%) + FICA ($6,848, 30%) make up the other 49% of the bill.
Moving this same Bioengineers and Biomedical Engineers salary to a zero-state-tax state would yield around $71,136 net — a gain of $4,431 (6.6%) per year versus Illinois.
Illinois sits near the bottom (#32 of 37) for Bioengineers and Biomedical Engineers after-tax earnings. Relocation, negotiation, or credential stacking typically show the clearest ROI in bottom-quartile states.
Translated into paycheck cadences, $66,705 net/year works out to $5,559/month or $2,566/bi-weekly for this Bioengineers and Biomedical Engineers in Illinois — the numbers that actually hit a checking account after every deduction.
Where does a Bioengineers and Biomedical Engineers keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Illinois ranks #32 out of 37 states for Bioengineers and Biomedical Engineers after-tax take-home pay.
A Bioengineers and Biomedical Engineers in Illinois earning a median salary of $89,520 will take home approximately $66,705 per year after federal income tax ($11,535), state income tax ($4,431), and FICA ($6,848). That is $5,558 per month or $2,565 per bi-weekly paycheck.
The effective total tax rate for a Bioengineers and Biomedical Engineers in Illinois is 25.5%, broken down as: federal income tax 12.9%, Illinois state tax 4.9%, 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 Bioengineers and Biomedical Engineers's median salary of $89,520, the state income tax amounts to $4,431 per year, which is an effective state rate of 4.9%.
After all taxes, a Bioengineers and Biomedical Engineers in Illinois takes home approximately $5,558 per month, or about $32.07 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 $89,520 for Bioengineers and Biomedical 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 — $66,705/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