Last updated: 2025 BLS data · Page refreshed:
How much does a Ship Engineers actually take home in Illinois?
5.0% flat rate — 27.5% effective total tax rateData: BLS OEWS 2025 + IRS/State Tax Brackets 2024 • Updated 2026-05-19
Detailed line-by-line tax calculation for a Ship Engineers earning $115,310 in Illinois (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $115,310 | — |
| Federal Income Tax | -$17,212 | 14.9% |
| Illinois State Income Tax | -$5,707 | 5.0% |
| Social Security (OASDI) | -$7,149 | 6.2% |
| Medicare | -$1,672 | 1.5% |
| Total Taxes | -$31,741 | 27.5% |
| Take-Home Pay | $83,568 | 72.5% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Ship Engineers in Illinois.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $52,870 | -$11,022 | $41,847 | 20.8% |
| 25th Percentile (P25) | $77,770 | -$18,749 | $59,020 | 24.1% |
| Median (P50) | $115,310 | -$31,741 | $83,568 | 27.5% |
| 75th Percentile (P75) | $123,300 | -$34,666 | $88,633 | 28.1% |
| 90th Percentile (P90) | $136,310 | -$39,427 | $96,882 | 28.9% |
After federal income tax ($17,212), state tax ($5,707), and FICA ($8,821), a Ship Engineers in Illinois takes home $83,568 per year — or $6,964 per month. The effective tax rate of 27.5% is moderate compared to the national range.
A Ship Engineers in Illinois loses 27.5% of gross pay to taxes — higher than the ~25% national midpoint. Of the $115,310 gross, $83,568 lands in the paycheck after federal ($17,213), state ($5,708), and FICA ($8,821) withholding.
Illinois applies a flat state income tax — every dollar of wage income is taxed at the same rate. For this Ship Engineers salary that contributes $5,708 to the 5.0% effective state-tax burden.
Federal tax on this Ship Engineers salary is $17,213 (54%), but combined state ($5,708, 18%) + FICA ($8,821, 28%) make up the other 46% of the bill.
Moving this same Ship Engineers salary to a zero-state-tax state would yield around $89,276 net — a gain of $5,708 (6.8%) per year versus Illinois.
Illinois ranks #12 of 24 states for Ship Engineers after-tax pay — comfortably in the upper half.
Translated into paycheck cadences, $83,568 net/year works out to $6,964/month or $3,214/bi-weekly for this Ship Engineers in Illinois — the numbers that actually hit a checking account after every deduction.
Where does a Ship Engineers keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Illinois ranks #12 out of 24 states for Ship Engineers after-tax take-home pay.
A Ship Engineers in Illinois earning a median salary of $115,310 will take home approximately $83,568 per year after federal income tax ($17,212), state income tax ($5,707), and FICA ($8,821). That is $6,964 per month or $3,214 per bi-weekly paycheck.
The effective total tax rate for a Ship Engineers in Illinois is 27.5%, broken down as: federal income tax 14.9%, 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 Ship Engineers's median salary of $115,310, the state income tax amounts to $5,707 per year, which is an effective state rate of 5.0%.
After all taxes, a Ship Engineers in Illinois takes home approximately $6,964 per month, or about $40.18 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 $115,310 for Ship 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 — $83,568/yr — does not include local taxes, pre-tax deductions (401k, HSA), or tax credits.
Some links are affiliate links. See our disclosure.
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