Oregon Income Tax Calculator - Estimate Oregon state income tax from federal taxable income using the graduated brackets, standard deduction, and kicker credit.

The Oregon income tax calculator estimates the individual income tax you owe to the state of Oregon before you file Form OR-40. It starts from your federal taxable income, then layers on the Oregon-specific rules that turn that federal figure into Oregon taxable income. This matters because Oregon does not tax your federal adjusted gross income directly; it uses federal taxable income, applies Oregon additions and subtractions, subtracts a modest standard deduction, and then charges a schedule of graduated brackets rather than a single flat rate. Oregon also runs a unique kicker credit that returns surplus revenue to taxpayers in certain years.

• • Pre-filing estimate: See your expected Oregon liability, including the kicker, before submitting the return so there are no surprises.
• • Withholding check: Compare the year-end estimate against what your employer withheld through the year on each paycheck.
• • Kicker modeling: Estimate the refundable kicker percentage for the 2023 and 2024 tax years so you know the credit coming back.

Most Oregon residents file Form OR-40, and the calculation always hinges on the same bridge: federal taxable income in, Oregon taxable income out, brackets applied, kicker added. The calculator makes that bridge visible instead of hidden inside tax software.

If you want to understand the federal half of the picture first, the federal income tax calculator walks through how federal taxable income and brackets are built before state adjustments begin.

The calculator follows the same steps the Oregon Department of Revenue uses on Form OR-40. First it takes federal taxable income, adds back Oregon additions, and subtracts Oregon subtractions to reach Oregon AGI. It then subtracts the Oregon standard deduction to get Oregon taxable income, and applies the graduated four-bracket schedule to that income. When a kicker year applies, a percentage of the base tax is returned as a credit.

• Federal taxable income: Your IRS Form 1040 line 15 amount, the starting point for Oregon tax.
• Additions: Income Oregon adds back, such as interest from state and local bonds of other states.
• Subtractions: Income Oregon removes, such as certain retirement income and the federal deduction for qualified business income.
• Standard deduction: A flat dollar amount that lowers Oregon taxable income before the brackets are applied (2024 single $2,590; married joint $5,180; head of household $5,180).
• Kicker year: Selects the surplus-credit percentage: 44.1% for the 2023 tax year (2024 returns) or 5.6% for the 2024 tax year (2025 returns).

Because Oregon uses graduated brackets, the math is stepwise: each slice of income is taxed at its own marginal rate. A single filer's first $4,050 is taxed at 4.75%, the next $6,150 at 6.75%, the next $114,800 at 8.75%, and income above $125,000 at 9.9%.

The effective rate shown at the bottom divides your final Oregon tax by your federal taxable income, so you can see the real bite as a share of your income rather than just the top 9.9% marginal rate.

According to the Oregon Department of Revenue, Oregon residents file Form OR-40 and compute tax on Oregon taxable income using a graduated four-bracket schedule after starting from federal taxable income and applying the standard deduction.

For the withholding side, the Oregon paycheck calculator shows how this same tax is taken from each paycheck.

A few terms drive every Oregon income tax result. Understanding them keeps your estimate honest and helps you spot why your number differs from a paycheck stub.

The Oregon income tax calculator starts from your federal taxable income, and the AGI calculator rebuilds that figure from your income before you carry it into this tool.

The deduction does one job and the brackets do another: the deduction shrinks the income the brackets touch, while each bracket shrinks the rate that slice pays.

One Oregon quirk is worth flagging: married filing jointly and head of household brackets are exactly double the single thresholds, which generally favors couples who file jointly because more of their income lands in the lower-rated slices.

If you are unsure what your federal taxable income is, the AGI calculator rebuilds it from your income before you carry it into this tool.

Enter your numbers top to bottom. Every field has a sensible default, so you can run a quick estimate and then refine it.

1. 1 Enter federal taxable income: Type the taxable income from your IRS Form 1040, line 15.
2. 2 Pick filing status: Choose single, married joint, head of household, or married separate to set the right bracket widths and standard deduction.
3. 3 Add adjustments: Enter Oregon additions and subtractions only if they apply to your return.
4. 4 Select kicker year: Pick the surplus-credit year (2023 at 44.1%, 2024 at 5.6%, or none) if you want the credit included.
5. 5 Read the results: Review Oregon AGI, taxable income, base tax, kicker credit, and effective rate.

A single filer with $60,000 of federal taxable income and no adjustments sees $57,410 of Oregon taxable income; the graduated brackets produce about $4,738 of base tax, a 7.90% effective rate. Adding a $10,000 Oregon subtraction drops taxable income and base tax by roughly $875 at the 8.75% marginal slice that income sits in.

Families with children should also review the child tax credit calculator, since the federal credit changes your refund even though Oregon does not conform to it.

An estimate you can trust before filing saves money and stress in three concrete ways.

• • Catch withholding gaps: Compare the estimate to year-to-date withholding so you avoid a large April balance due.
• • Model the kicker: See the refundable credit for surplus years so you are not surprised by a larger-than-expected refund.
• • Transparent math: Every bracket step is shown, so you understand why the number is what it is rather than accepting a black box.

The Oregon income tax calculator is informational and does not file anything; it exists to help you plan. Treat the output as an estimate that approximates Form OR-40, not a substitute for the official form or a tax professional.

Running the same income with and without the kicker makes the credit concrete: the same $60,000 of taxable income drops from about $4,738 of base tax to a net bill reduced by the 5.6% or 44.1% credit depending on the surplus year.

For the withholding side, the Oregon paycheck calculator shows how this same tax is taken out of each paycheck through the year.

A one-time bonus changes federal taxable income, so the bonus tax calculator helps model supplemental income before you estimate state tax.

Five inputs move your Oregon tax the most. Knowing which ones apply to you keeps the estimate accurate.

• • Itemized deductions, credits, and certain subtractions are simplified to editable inputs rather than fully modeled.
• • Local taxes and the partial Oregon exemption credit are simplified; always confirm against the current Form OR-40 instructions before filing.

The estimate follows the graduated four-bracket structure Oregon uses on Form OR-40, the approach set out in the broader Taxation in the United States overview.

Remember that this tool covers only the state return. For year-specific amounts, always confirm against the current Oregon Department of Revenue Form OR-40 instructions before filing, since the standard deduction is indexed and can shift.

If you are weighing joint versus separate filing, the marriage penalty calculator shows how the doubled joint brackets interact with your choice in Oregon.

According to Tax Foundation - Oregon, Oregon's top individual income tax rate is 9.9% and Oregon levies a unique kicker credit returning surplus revenue when collections exceed the forecast.

If you are weighing joint versus separate filing, the marriage penalty calculator shows how the doubled joint brackets interact with your choice.