Last updated: 2025 BLS data · Page refreshed:
How much does a Petroleum Engineers actually take home in Washington?
No state income tax — 23.9% effective total tax rateData: BLS OEWS 2025 + IRS/State Tax Brackets 2024 • Updated 2026-05-19
Detailed line-by-line tax calculation for a Petroleum Engineers earning $134,800 in Washington (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $134,800 | — |
| Federal Income Tax | -$21,890 | 16.2% |
| Washington State Income Tax | -$0 | 0.0% |
| Social Security (OASDI) | -$8,357 | 6.2% |
| Medicare | -$1,954 | 1.4% |
| Total Taxes | -$32,202 | 23.9% |
| Take-Home Pay | $102,597 | 76.1% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Petroleum Engineers in Washington.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $107,690 | -$23,771 | $83,918 | 22.1% |
| 25th Percentile (P25) | $129,510 | -$30,528 | $98,981 | 23.6% |
| Median (P50) | $134,800 | -$32,202 | $102,597 | 23.9% |
| 75th Percentile (P75) | $176,740 | -$44,972 | $131,767 | 25.4% |
| 90th Percentile (P90) | $184,360 | -$46,911 | $137,448 | 25.4% |
Washington has no state income tax, which means a Petroleum Engineers keeps $102,597 of their $134,800 salary — 76.1% of gross pay. Only federal income tax and FICA reduce the paycheck, making Washington one of the most tax-friendly states for this occupation.
With an effective total rate of 23.9%, a Petroleum Engineers in Washington keeps $102,597 of $134,800 gross — roughly typical for U.S. middle-income earners once federal, FICA and state taxes are combined.
Washington is one of the few states with zero state income tax for wage earners. For a Petroleum Engineers, that means the only deductions are federal income tax and FICA — no additional state withholding. This typically adds several thousand dollars per year compared to comparable states with income tax.
Federal income tax ($21,890) accounts for 68% of the total tax bill — the single largest deduction. FICA adds $10,312 (32%), and state tax the remaining $0 (0%).
Washington ranks #6 of 16 states for Petroleum Engineers after-tax pay — comfortably in the upper half.
Translated into paycheck cadences, $102,597 net/year works out to $8,550/month or $3,946/bi-weekly for this Petroleum Engineers in Washington — the numbers that actually hit a checking account after every deduction.
Where does a Petroleum Engineers keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Washington ranks #6 out of 16 states for Petroleum Engineers after-tax take-home pay.
A Petroleum Engineers in Washington earning a median salary of $134,800 will take home approximately $102,597 per year after federal income tax ($21,890), state income tax ($0), and FICA ($10,312). That is $8,549 per month or $3,946 per bi-weekly paycheck.
The effective total tax rate for a Petroleum Engineers in Washington is 23.9%, broken down as: federal income tax 16.2%, Washington state tax 0.0%, and FICA (Social Security + Medicare) 7.6%. This assumes a single filer with the standard deduction for 2024.
No, Washington does not levy a state income tax on wages. This means a Petroleum Engineers in Washington only pays federal income tax and FICA taxes, resulting in a lower overall tax burden compared to most other states. The total effective rate is 23.9%.
After all taxes, a Petroleum Engineers in Washington takes home approximately $8,549 per month, or about $49.33 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 $134,800 for Petroleum Engineers in Washington, then subtract: federal income tax using 2024 IRS brackets ($14,600 standard deduction), Washington state income tax (no state income tax), Social Security (6.2% up to $168,600), and Medicare (1.45%). The result — $102,597/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