Last updated: 2025 BLS data · Page refreshed:
How much does a Environmental Engineers actually take home in Idaho?
5.8% flat rate — 28.5% effective total tax rateData: BLS OEWS 2025 + IRS/State Tax Brackets 2024 • Updated 2026-05-19
Detailed line-by-line tax calculation for a Environmental Engineers earning $117,520 in Idaho (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $117,520 | — |
| Federal Income Tax | -$17,743 | 15.1% |
| Idaho State Income Tax | -$6,816 | 5.8% |
| Social Security (OASDI) | -$7,286 | 6.2% |
| Medicare | -$1,704 | 1.4% |
| Total Taxes | -$33,549 | 28.5% |
| Take-Home Pay | $83,970 | 71.5% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Environmental Engineers in Idaho.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $69,780 | -$16,578 | $53,201 | 23.8% |
| 25th Percentile (P25) | $104,000 | -$28,709 | $75,291 | 27.6% |
| Median (P50) | $117,520 | -$33,549 | $83,970 | 28.5% |
| 75th Percentile (P75) | $151,730 | -$46,361 | $105,368 | 30.6% |
| 90th Percentile (P90) | $165,810 | -$51,634 | $114,175 | 31.1% |
After federal income tax ($17,743), state tax ($6,816), and FICA ($8,990), a Environmental Engineers in Idaho takes home $83,970 per year — or $6,997 per month. The effective tax rate of 28.5% is moderate compared to the national range.
A Environmental Engineers in Idaho loses 28.5% of gross pay to taxes — higher than the ~25% national midpoint. Of the $117,520 gross, $83,970 lands in the paycheck after federal ($17,743), state ($6,816), and FICA ($8,990) withholding.
Idaho applies a flat state income tax — every dollar of wage income is taxed at the same rate. For this Environmental Engineers salary that contributes $6,816 to the 5.8% effective state-tax burden.
Federal tax on this Environmental Engineers salary is $17,743 (53%), but combined state ($6,816, 20%) + FICA ($8,990, 27%) make up the other 47% of the bill.
The state-tax gap is substantial: a Environmental Engineers earning this gross in a no-income-tax state would net about $90,786 — an extra $6,816 (8.1%) annually compared with Idaho.
For Environmental Engineers after-tax pay, Idaho ranks #11 of 50 states — top quartile. High gross wages or low state-tax burden (or both) drive the strong ranking.
Translated into paycheck cadences, $83,970 net/year works out to $6,998/month or $3,230/bi-weekly for this Environmental Engineers in Idaho — the numbers that actually hit a checking account after every deduction.
Where does a Environmental Engineers keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Idaho ranks #11 out of 50 states for Environmental Engineers after-tax take-home pay.
A Environmental Engineers in Idaho earning a median salary of $117,520 will take home approximately $83,970 per year after federal income tax ($17,743), state income tax ($6,816), and FICA ($8,990). That is $6,997 per month or $3,229 per bi-weekly paycheck.
The effective total tax rate for a Environmental Engineers in Idaho is 28.5%, broken down as: federal income tax 15.1%, Idaho state tax 5.8%, and FICA (Social Security + Medicare) 7.7%. This assumes a single filer with the standard deduction for 2024.
Idaho has a 5.8% flat rate. On a Environmental Engineers's median salary of $117,520, the state income tax amounts to $6,816 per year, which is an effective state rate of 5.8%.
After all taxes, a Environmental Engineers in Idaho takes home approximately $6,997 per month, or about $40.37 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 $117,520 for Environmental Engineers in Idaho, then subtract: federal income tax using 2024 IRS brackets ($14,600 standard deduction), Idaho state income tax (5.8% flat rate), Social Security (6.2% up to $168,600), and Medicare (1.45%). The result — $83,970/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