Median salary: $92K (Mechanical Engineer) vs $120K (Software Engineer). Salary ranges overlap between 65K–130K and 80K–200K. The take-home difference depends on state taxes, cost of living, and where in the salary range you fall.
At the national median, Mechanical Engineers earn $92K and Software Engineers earn $120K. After federal taxes and FICA (calculated without state tax to isolate the salary effect), Mechanical Engineers take home $73,497 vs $93,195 for Software Engineers.
The $28K salary advantage for Software Engineers doesn’t translate dollar-for-dollar to take-home. Because of progressive federal tax brackets, the Software Engineer’s higher salary is taxed at a higher marginal rate. Of the $28K gross difference, only $19,698 reaches the Software Engineer’s pocket — the rest goes to taxes.
Mechanical Engineers face an effective tax rate of 20.1% at median, while Software Engineers pay 22.3%. The higher rate for Software Engineers reflects more income being pushed into higher federal brackets.
The best states differ for each profession because salary adjustments vary by state cost index and interact differently with tax brackets. A state that’s great for a $92K earner may not be optimal for a $120K earner.
All 50 states showing estimated salary and take-home for both professions. Sorted by which states give Mechanical Engineers the largest take-home advantage over Software Engineers.
| State | Mechanical Engineer Salary | Mechanical Engineer Take-Home | Software Engineer Salary | Software Engineer Take-Home | Difference | Higher |
|---|---|---|---|---|---|---|
| West Virginia | $76K | $59,712 | $100K | $75,797 | $-16,085 | Software Engineer |
| Mississippi | $76K | $59,771 | $100K | $75,875 | $-16,104 | Software Engineer |
| Oklahoma | $80K | $62,585 | $104K | $78,728 | $-16,143 | Software Engineer |
| Michigan | $84K | $63,039 | $109K | $79,189 | $-16,150 | Software Engineer |
| Arkansas | $79K | $62,349 | $103K | $78,624 | $-16,276 | Software Engineer |
| Kentucky | $83K | $63,016 | $108K | $79,353 | $-16,337 | Software Engineer |
| Alabama | $81K | $61,911 | $106K | $78,311 | $-16,400 | Software Engineer |
| Missouri | $82K | $62,674 | $107K | $79,106 | $-16,433 | Software Engineer |
| Indiana | $83K | $63,472 | $108K | $79,947 | $-16,475 | Software Engineer |
| Ohio | $83K | $63,638 | $108K | $80,163 | $-16,525 | Software Engineer |
| South Carolina | $85K | $65,037 | $110K | $81,584 | $-16,547 | Software Engineer |
| New Mexico | $84K | $64,648 | $109K | $81,276 | $-16,629 | Software Engineer |
| Iowa | $82K | $63,346 | $107K | $79,984 | $-16,637 | Software Engineer |
| Kansas | $83K | $64,090 | $108K | $80,752 | $-16,661 | Software Engineer |
| Nebraska | $84K | $65,385 | $109K | $82,233 | $-16,848 | Software Engineer |
| Louisiana | $84K | $65,549 | $109K | $82,445 | $-16,897 | Software Engineer |
| Georgia | $86K | $64,813 | $112K | $81,754 | $-16,942 | Software Engineer |
| Wisconsin | $86K | $65,000 | $112K | $81,998 | $-16,998 | Software Engineer |
| Illinois | $86K | $65,019 | $112K | $82,023 | $-17,004 | Software Engineer |
| North Dakota | $85K | $67,495 | $110K | $84,766 | $-17,271 | Software Engineer |
| Idaho | $87K | $65,369 | $114K | $82,932 | $-17,563 | Software Engineer |
| South Dakota | $85K | $68,573 | $110K | $86,160 | $-17,587 | Software Engineer |
| Tennessee | $83K | $67,166 | $108K | $84,753 | $-17,587 | Software Engineer |
| Minnesota | $91K | $66,967 | $119K | $84,873 | $-17,905 | Software Engineer |
| North Carolina | $87K | $66,508 | $114K | $84,425 | $-17,917 | Software Engineer |
| Montana | $89K | $68,118 | $116K | $86,121 | $-18,003 | Software Engineer |
| Delaware | $94K | $69,461 | $122K | $87,538 | $-18,077 | Software Engineer |
| Texas | $86K | $69,276 | $112K | $87,567 | $-18,291 | Software Engineer |
| Arizona | $89K | $69,162 | $116K | $87,481 | $-18,319 | Software Engineer |
| Utah | $91K | $68,562 | $119K | $86,958 | $-18,396 | Software Engineer |
| Maine | $90K | $67,907 | $118K | $86,304 | $-18,397 | Software Engineer |
| Pennsylvania | $90K | $67,977 | $118K | $86,395 | $-18,418 | Software Engineer |
| Vermont | $97K | $71,498 | $126K | $90,181 | $-18,683 | Software Engineer |
| Wyoming | $86K | $69,276 | $113K | $88,271 | $-18,994 | Software Engineer |
| Colorado | $97K | $72,747 | $126K | $91,803 | $-19,056 | Software Engineer |
| Oregon | $101K | $71,814 | $132K | $90,974 | $-19,160 | Software Engineer |
| Rhode Island | $97K | $73,238 | $126K | $92,441 | $-19,203 | Software Engineer |
| Virginia | $95K | $72,057 | $124K | $91,346 | $-19,289 | Software Engineer |
| Florida | $92K | $73,497 | $120K | $93,195 | $-19,698 | Software Engineer |
| Nevada | $93K | $74,201 | $121K | $93,899 | $-19,698 | Software Engineer |
| Maryland | $103K | $75,841 | $134K | $95,797 | $-19,956 | Software Engineer |
| New Jersey | $106K | $75,939 | $138K | $95,906 | $-19,967 | Software Engineer |
| Connecticut | $102K | $75,898 | $133K | $96,089 | $-20,191 | Software Engineer |
| New York | $115K | $79,805 | $150K | $100,874 | $-21,069 | Software Engineer |
| Massachusetts | $109K | $80,007 | $142K | $101,183 | $-21,176 | Software Engineer |
| Washington | $101K | $79,829 | $132K | $101,448 | $-21,619 | Software Engineer |
| New Hampshire | $99K | $78,422 | $130K | $100,081 | $-21,659 | Software Engineer |
| California | $131K | $89,440 | $170K | $112,725 | $-23,285 | Software Engineer |
| Alaska | $117K | $91,085 | $152K | $115,118 | $-24,033 | Software Engineer |
| Hawaii | $177K | $119,550 | $230K | $153,689 | $-34,139 | Software Engineer |
Job Security & Demand: Mechanical Engineers and Software Engineers serve different market needs, which affects job security differently. The demand for mechanical engineers depends on corporate investment and industry growth, while software engineer demand is driven by business growth and specialization needs. Both careers offer reasonable stability for experienced professionals.
Growth & Advancement: Career advancement paths differ significantly. Mechanical Engineers have a salary range of 65K–130K, with the higher end typically requiring either specialization or management responsibilities. Software Engineers range from 80K–200K, with similar advancement dynamics. Education requirements, licensing, and geographic flexibility all influence which career ultimately provides better lifetime earnings.
Work-Life Balance & Lifestyle: Work-life balance, benefits, and non-monetary compensation vary considerably between these careers. Beyond raw take-home pay, consider retirement benefits (pensions vs 401k matching), healthcare coverage quality, schedule flexibility, and whether the role supports remote work — which has significant tax implications if you can choose your state of residency.