Last updated: 2025 BLS data · Page refreshed:
How much does a Mechanical Engineers actually take home in Colorado?
4.4% flat rate — 27.6% effective total tax rateData: BLS OEWS 2025 + IRS/State Tax Brackets 2024 • Updated 2026-05-19
Detailed line-by-line tax calculation for a Mechanical Engineers earning $124,430 in Colorado (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $124,430 | — |
| Federal Income Tax | -$19,401 | 15.6% |
| Colorado State Income Tax | -$5,474 | 4.4% |
| Social Security (OASDI) | -$7,714 | 6.2% |
| Medicare | -$1,804 | 1.5% |
| Total Taxes | -$34,395 | 27.6% |
| Take-Home Pay | $90,034 | 72.4% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Mechanical Engineers in Colorado.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $75,100 | -$17,412 | $57,687 | 23.2% |
| 25th Percentile (P25) | $95,710 | -$24,430 | $71,279 | 25.5% |
| Median (P50) | $124,430 | -$34,395 | $90,034 | 27.6% |
| 75th Percentile (P75) | $149,790 | -$43,537 | $106,252 | 29.1% |
| 90th Percentile (P90) | $170,810 | -$50,978 | $119,831 | 29.8% |
After federal income tax ($19,401), state tax ($5,474), and FICA ($9,518), a Mechanical Engineers in Colorado takes home $90,034 per year — or $7,502 per month. The effective tax rate of 27.6% is moderate compared to the national range.
A Mechanical Engineers in Colorado loses 27.6% of gross pay to taxes — higher than the ~25% national midpoint. Of the $124,430 gross, $90,034 lands in the paycheck after federal ($19,402), state ($5,475), and FICA ($9,519) withholding.
Colorado applies a flat state income tax — every dollar of wage income is taxed at the same rate. For this Mechanical Engineers salary that contributes $5,475 to the 4.4% effective state-tax burden.
Federal income tax ($19,402) accounts for 56% of the total tax bill — the single largest deduction. FICA adds $9,519 (28%), and state tax the remaining $5,475 (16%).
Moving this same Mechanical Engineers salary to a zero-state-tax state would yield around $95,509 net — a gain of $5,475 (6.1%) per year versus Colorado.
For Mechanical Engineers after-tax pay, Colorado ranks #6 of 51 states — top quartile. High gross wages or low state-tax burden (or both) drive the strong ranking.
Translated into paycheck cadences, $90,034 net/year works out to $7,503/month or $3,463/bi-weekly for this Mechanical Engineers in Colorado — the numbers that actually hit a checking account after every deduction.
Where does a Mechanical Engineers keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Colorado ranks #6 out of 51 states for Mechanical Engineers after-tax take-home pay.
A Mechanical Engineers in Colorado earning a median salary of $124,430 will take home approximately $90,034 per year after federal income tax ($19,401), state income tax ($5,474), and FICA ($9,518). That is $7,502 per month or $3,462 per bi-weekly paycheck.
The effective total tax rate for a Mechanical Engineers in Colorado is 27.6%, broken down as: federal income tax 15.6%, Colorado state tax 4.4%, and FICA (Social Security + Medicare) 7.7%. This assumes a single filer with the standard deduction for 2024.
Colorado has a 4.4% flat rate. On a Mechanical Engineers's median salary of $124,430, the state income tax amounts to $5,474 per year, which is an effective state rate of 4.4%.
After all taxes, a Mechanical Engineers in Colorado takes home approximately $7,502 per month, or about $43.29 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 $124,430 for Mechanical Engineers in Colorado, then subtract: federal income tax using 2024 IRS brackets ($14,600 standard deduction), Colorado state income tax (4.4% flat rate), Social Security (6.2% up to $168,600), and Medicare (1.45%). The result — $90,034/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