Last updated: 2025 BLS data · Page refreshed:
How much does a Geoscientists, Except Hydrologists and Geographers actually take home in Illinois?
5.0% flat rate — 26.2% effective total tax rateData: BLS OEWS 2025 + IRS/State Tax Brackets 2024 • Updated 2026-05-19
Detailed line-by-line tax calculation for a Geoscientists, Except Hydrologists and Geographers earning $96,950 in Illinois (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $96,950 | — |
| Federal Income Tax | -$13,170 | 13.6% |
| Illinois State Income Tax | -$4,799 | 5.0% |
| Social Security (OASDI) | -$6,010 | 6.2% |
| Medicare | -$1,405 | 1.5% |
| Total Taxes | -$25,385 | 26.2% |
| Take-Home Pay | $71,564 | 73.8% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Geoscientists, Except Hydrologists and Geographers in Illinois.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $65,290 | -$14,431 | $50,858 | 22.1% |
| 25th Percentile (P25) | $74,390 | -$17,579 | $56,810 | 23.6% |
| Median (P50) | $96,950 | -$25,385 | $71,564 | 26.2% |
| 75th Percentile (P75) | $149,030 | -$44,083 | $104,946 | 29.6% |
| 90th Percentile (P90) | $177,670 | -$54,003 | $123,666 | 30.4% |
After federal income tax ($13,170), state tax ($4,799), and FICA ($7,416), a Geoscientists, Except Hydrologists and Geographers in Illinois takes home $71,564 per year — or $5,963 per month. The effective tax rate of 26.2% is moderate compared to the national range.
A Geoscientists, Except Hydrologists and Geographers in Illinois loses 26.2% of gross pay to taxes — higher than the ~25% national midpoint. Of the $96,950 gross, $71,564 lands in the paycheck after federal ($13,170), state ($4,799), and FICA ($7,417) withholding.
Illinois applies a flat state income tax — every dollar of wage income is taxed at the same rate. For this Geoscientists, Except Hydrologists and Geographers salary that contributes $4,799 to the 5.0% effective state-tax burden.
Federal tax on this Geoscientists, Except Hydrologists and Geographers salary is $13,170 (52%), but combined state ($4,799, 19%) + FICA ($7,417, 29%) make up the other 48% of the bill.
Moving this same Geoscientists, Except Hydrologists and Geographers salary to a zero-state-tax state would yield around $76,363 net — a gain of $4,799 (6.7%) per year versus Illinois.
Illinois ranks #15 of 50 states for Geoscientists, Except Hydrologists and Geographers after-tax pay — comfortably in the upper half.
Translated into paycheck cadences, $71,564 net/year works out to $5,964/month or $2,752/bi-weekly for this Geoscientists, Except Hydrologists and Geographers in Illinois — the numbers that actually hit a checking account after every deduction.
Where does a Geoscientists, Except Hydrologists and Geographers keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Illinois ranks #15 out of 50 states for Geoscientists, Except Hydrologists and Geographers after-tax take-home pay.
A Geoscientists, Except Hydrologists and Geographers in Illinois earning a median salary of $96,950 will take home approximately $71,564 per year after federal income tax ($13,170), state income tax ($4,799), and FICA ($7,416). That is $5,963 per month or $2,752 per bi-weekly paycheck.
The effective total tax rate for a Geoscientists, Except Hydrologists and Geographers in Illinois is 26.2%, broken down as: federal income tax 13.6%, 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 Geoscientists, Except Hydrologists and Geographers's median salary of $96,950, the state income tax amounts to $4,799 per year, which is an effective state rate of 5.0%.
After all taxes, a Geoscientists, Except Hydrologists and Geographers in Illinois takes home approximately $5,963 per month, or about $34.41 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 $96,950 for Geoscientists, Except Hydrologists and Geographers 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 — $71,564/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