Oregon Paycheck Calculator
Use one pay period, the 2026 Form W-4 settings, and the Oregon certificate fields shown by the calculator. Federal, state, local, and supported employee payroll items are calculated separately so the estimate can be audited.
How to use this calculator
Enter tax year, gross pay, pay frequency, filing status, total pre-tax deductions, the portion exempt from FICA, separate year-to-date wage bases, Form W-4 Steps 2 through 4, and the displayed Oregon withholding-certificate, locality, and payroll-program settings.
Review the 2026 IRS and Oregon source dates, certificate entries, which deductions are actually FICA-exempt, every year-to-date wage base, locality, exemptions, and whether the employer pays any employee program premium.
Read the estimate basis, estimated net pay, federal and FICA items, Oregon income tax withholding, supported local and payroll-program items, and total estimated taxes and premiums.
Formula
Oregon estimated net pay = gross pay − pre-tax deductions − 2026 federal withholding − Social Security − Medicare − calculated Oregon withholding − supported local taxes and employee payroll premiums.
Worked example
If a Oregon pay period has $2,000 gross pay, no pre-tax deduction, and the displayed federal, FICA, state, and local taxes total $410, estimated net pay is $1,590.
Assumptions and limits
- Oregon withholding must use current state formulas, with statewide transit and applicable local payroll items shown separately when required. This is a 2026 planning estimate, not payroll or tax advice; employer benefit treatment, reciprocity, exemptions, supplemental wages, and unlisted local programs can change the actual check.
- Oregon Paycheck Calculator treats the entered values as estimates and does not infer missing project, account, or personal details.
- Calculations retain working precision except where the cited method requires an intermediate rounding step; displayed values are then formatted separately. Source rules and dated rates must be rechecked when they change.
Sources
- Internal Revenue Service: Publication 15-T, Federal Income Tax Withholding MethodsFederal payroll withholding methods and tax-year tables. Reviewed 2026-08-14.
- Oregon Department of Revenue: Payroll Withholding and Transit TaxesThe Payroll Withholding and Transit Taxes rules and withholding guidance. Reviewed 2026-08-14.
- Internal Revenue Service: Publication 15-T (2026), Federal Income Tax Withholding MethodsOfficial formula or method source used by this calculator. Reviewed 2026-08-14.
- Social Security Administration: Contribution and Benefit Base DeterminationOfficial formula or method source used by this calculator. Reviewed 2026-08-14.
- Internal Revenue Service: Questions and Answers for the Additional Medicare TaxOfficial formula or method source used by this calculator. Reviewed 2026-08-14.
- Internal Revenue Service: Publication 15-B (2026), Employer's Tax Guide to Fringe BenefitsOfficial formula or method source used by this calculator. Reviewed 2026-08-14.
- Oregon Department of Revenue: 2026 Oregon Withholding Tax Formulas, 150-206-436Official formula or method source used by this calculator. Reviewed 2026-08-14.
- Oregon Department of Revenue: Statewide Transit Tax employee withholdingOfficial formula or method source used by this calculator. Reviewed 2026-08-14.
- Paid Leave Oregon: 2026 employee contribution rate and maximum wagesOfficial formula or method source used by this calculator. Reviewed 2026-08-14.
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Verification
How this calculator is checked
Trust comes from reproducible evidence, not model confidence. You can inspect the formula, assumptions, worked example, and cited sources on this page.
- Versioned calculationFormula logic is kept separate from the interface and covered by automated registry and behavior checks.
- Cited evidenceSources linked for independent checking: 9.
- Transparent AI useAI may assist drafting or adversarial review. Agreement between models is not proof, and no human expert review is claimed unless a named reviewer is shown.
Frequently asked questions
How does the Oregon Paycheck Calculator work?
Oregon estimated net pay = gross pay − pre-tax deductions − 2026 federal withholding − Social Security − Medicare − calculated Oregon withholding − supported local taxes and employee payroll premiums.
What information should I enter in the Oregon Paycheck Calculator?
Enter tax year, gross pay, pay frequency, filing status, total pre-tax deductions, the portion exempt from FICA, separate year-to-date wage bases, Form W-4 Steps 2 through 4, and the displayed Oregon withholding-certificate, locality, and payroll-program settings, then verify the 2026 IRS and Oregon source dates, certificate entries, which deductions are actually FICA-exempt, every year-to-date wage base, locality, exemptions, and whether the employer pays any employee program premium.
What should I verify before using this Oregon Paycheck Calculator result?
Oregon withholding must use current state formulas, with statewide transit and applicable local payroll items shown separately when required. This is a 2026 planning estimate, not payroll or tax advice; employer benefit treatment, reciprocity, exemptions, supplemental wages, and unlisted local programs can change the actual check.
Last updated 2026-08-25 · 2026.3.0 · content-2026-08-14 · Published by YunFanLabs