Last updated: 2025 BLS data · Page refreshed:
How much does a Soil and Plant Scientists actually take home in Illinois?
5.0% flat rate — 24.3% effective total tax rateData: BLS OEWS 2025 + IRS/State Tax Brackets 2024 • Updated 2026-05-19
Detailed line-by-line tax calculation for a Soil and Plant Scientists earning $79,490 in Illinois (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $79,490 | — |
| Federal Income Tax | -$9,328 | 11.7% |
| Illinois State Income Tax | -$3,934 | 5.0% |
| Social Security (OASDI) | -$4,928 | 6.2% |
| Medicare | -$1,152 | 1.5% |
| Total Taxes | -$19,344 | 24.3% |
| Take-Home Pay | $60,145 | 75.7% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Soil and Plant Scientists in Illinois.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $48,160 | -$9,863 | $38,296 | 20.5% |
| 25th Percentile (P25) | $62,690 | -$13,531 | $49,158 | 21.6% |
| Median (P50) | $79,490 | -$19,344 | $60,145 | 24.3% |
| 75th Percentile (P75) | $107,280 | -$28,959 | $78,320 | 27.0% |
| 90th Percentile (P90) | $141,510 | -$41,331 | $100,178 | 29.2% |
After federal income tax ($9,328), state tax ($3,934), and FICA ($6,080), a Soil and Plant Scientists in Illinois takes home $60,145 per year — or $5,012 per month. The effective tax rate of 24.3% is relatively low compared to the national range.
With an effective total rate of 24.3%, a Soil and Plant Scientists in Illinois keeps $60,145 of $79,490 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 Soil and Plant Scientists salary that contributes $3,935 to the 5.0% effective state-tax burden.
Federal tax on this Soil and Plant Scientists salary is $9,329 (48%), but combined state ($3,935, 20%) + FICA ($6,081, 31%) make up the other 52% of the bill.
Moving this same Soil and Plant Scientists salary to a zero-state-tax state would yield around $64,080 net — a gain of $3,935 (6.5%) per year versus Illinois.
Illinois ranks #14 of 46 states for Soil and Plant Scientists after-tax pay — comfortably in the upper half.
Translated into paycheck cadences, $60,145 net/year works out to $5,012/month or $2,313/bi-weekly for this Soil and Plant Scientists in Illinois — the numbers that actually hit a checking account after every deduction.
Where does a Soil and Plant Scientists keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Illinois ranks #14 out of 46 states for Soil and Plant Scientists after-tax take-home pay.
A Soil and Plant Scientists in Illinois earning a median salary of $79,490 will take home approximately $60,145 per year after federal income tax ($9,328), state income tax ($3,934), and FICA ($6,080). That is $5,012 per month or $2,313 per bi-weekly paycheck.
The effective total tax rate for a Soil and Plant Scientists in Illinois is 24.3%, broken down as: federal income tax 11.7%, 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 Soil and Plant Scientists's median salary of $79,490, the state income tax amounts to $3,934 per year, which is an effective state rate of 5.0%.
After all taxes, a Soil and Plant Scientists in Illinois takes home approximately $5,012 per month, or about $28.92 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 $79,490 for Soil and Plant Scientists 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 — $60,145/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