Last updated: 2025 BLS data · Page refreshed:
How much does a Materials Engineers actually take home in Idaho?
5.8% flat rate — 27.7% effective total tax rateData: BLS OEWS 2025 + IRS/State Tax Brackets 2024 • Updated 2026-05-19
Detailed line-by-line tax calculation for a Materials Engineers earning $105,820 in Idaho (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $105,820 | — |
| Federal Income Tax | -$15,121 | 14.3% |
| Idaho State Income Tax | -$6,137 | 5.8% |
| Social Security (OASDI) | -$6,560 | 6.2% |
| Medicare | -$1,534 | 1.5% |
| Total Taxes | -$29,354 | 27.7% |
| Take-Home Pay | $76,465 | 72.3% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Materials Engineers in Idaho.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $57,250 | -$12,586 | $44,663 | 22.0% |
| 25th Percentile (P25) | $60,200 | -$13,336 | $46,863 | 22.2% |
| Median (P50) | $105,820 | -$29,354 | $76,465 | 27.7% |
| 75th Percentile (P75) | $133,030 | -$39,358 | $93,671 | 29.6% |
| 90th Percentile (P90) | $154,080 | -$47,241 | $106,838 | 30.7% |
After federal income tax ($15,121), state tax ($6,137), and FICA ($8,095), a Materials Engineers in Idaho takes home $76,465 per year — or $6,372 per month. The effective tax rate of 27.7% is moderate compared to the national range.
A Materials Engineers in Idaho loses 27.7% of gross pay to taxes — higher than the ~25% national midpoint. Of the $105,820 gross, $76,466 lands in the paycheck after federal ($15,121), state ($6,138), and FICA ($8,095) withholding.
Idaho applies a flat state income tax — every dollar of wage income is taxed at the same rate. For this Materials Engineers salary that contributes $6,138 to the 5.8% effective state-tax burden.
Federal tax on this Materials Engineers salary is $15,121 (52%), but combined state ($6,138, 21%) + FICA ($8,095, 28%) make up the other 48% of the bill.
The state-tax gap is substantial: a Materials Engineers earning this gross in a no-income-tax state would net about $82,603 — an extra $6,138 (8.0%) annually compared with Idaho.
Idaho ranks #27 of 45 states for Materials Engineers after-tax pay — lower half of the national distribution. Either gross wages trail the national median, state tax is elevated, or both.
Translated into paycheck cadences, $76,466 net/year works out to $6,372/month or $2,941/bi-weekly for this Materials Engineers in Idaho — the numbers that actually hit a checking account after every deduction.
Where does a Materials Engineers keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Idaho ranks #27 out of 45 states for Materials Engineers after-tax take-home pay.
A Materials Engineers in Idaho earning a median salary of $105,820 will take home approximately $76,465 per year after federal income tax ($15,121), state income tax ($6,137), and FICA ($8,095). That is $6,372 per month or $2,940 per bi-weekly paycheck.
The effective total tax rate for a Materials Engineers in Idaho is 27.7%, broken down as: federal income tax 14.3%, Idaho state tax 5.8%, and FICA (Social Security + Medicare) 7.6%. This assumes a single filer with the standard deduction for 2024.
Idaho has a 5.8% flat rate. On a Materials Engineers's median salary of $105,820, the state income tax amounts to $6,137 per year, which is an effective state rate of 5.8%.
After all taxes, a Materials Engineers in Idaho takes home approximately $6,372 per month, or about $36.76 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 $105,820 for Materials 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 — $76,465/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