Federal Income Tax: We apply 2026 marginal tax brackets based on your filing status. Your gross pay is annualized, then pre-tax deductions (401k, health insurance) and federal allowance exemptions ($4,700 per allowance) are subtracted to determine federal taxable income. Tax is calculated progressively across each bracket.
Oregon State Tax: Oregon uses three brackets for 2026: 4.75% on the first $18,400 (single) or $36,800 (married), 6.75% up to $250,000/$500,000, and 9.9% above that. Oregon allowance exemptions are $2,490 each. The 0.1% statewide transit tax is applied separately to all gross wages with no exemptions.
FICA Taxes: Social Security tax is 6.2% of gross wages up to the $168,600 wage base cap. Medicare is 1.45% on all wages, plus an additional 0.9% surtax on wages above $200,000 (single/HoH) or $250,000 (married). These are calculated on gross pay before pre-tax deductions.
Data Sources: Federal brackets from IRS Revenue Procedure 2025-11. Oregon brackets from Oregon Department of Revenue 2026 withholding tables. FICA rates and wage base from SSA announcements for tax year 2026.
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Try Free Budget Tools →Oregon has three tax brackets: 4.75% on the first $18,400 (single), 6.75% up to $250,000, and 9.9% on income above $250,000. Married filing jointly thresholds are $36,800 and $500,000.
Maximize pre-tax deductions like 401(k) contributions and health insurance premiums. Claim the correct number of allowances on your W-4 and OR-W-4. Review your withholding annually to avoid over-withholding.
Oregon imposes a 0.1% statewide transit tax on all wages. This funds public transportation improvements statewide. It applies to all employees regardless of where they live or work within Oregon.
File a new OR-W-4 form with your employer. You can adjust your state allowances to change how much Oregon tax is withheld from each paycheck. Changes typically take effect within one or two pay periods.
Washington has no state income tax, while Oregon's top rate is 9.9%. However, Oregon has no sales tax, while Washington charges 6.5-10.5% sales tax. The better state for you depends on your income level and spending habits.