How to Complete the Oregon OR-W-4 Employee Withholding Form

The Oregon OR-W-4 form is the Oregon Withholding Statement and Exemption Certificate, the document your employer uses to calculate how much Oregon income tax to pull from each paycheck. You fill it out when you start a job and update it whenever your tax picture shifts. Oregon keeps its own version because the redesigned federal W-4 no longer collects the allowance data Oregon’s withholding tables rely on.

To complete it, you pick a filing status on line 1, work through Worksheet A (and Worksheet B or C if your situation calls for them) to arrive at an allowance number for line 2, add any extra per-paycheck withholding on line 3 or claim an exemption on line 4, sign, and give it to your employer’s payroll office.

When to Submit a New Form

Oregon law requires employers to withhold state income tax at the time wages are paid.¹ You need a new or updated OR-W-4 whenever one of these happens:

You start a new job. The form has to be in before your first paycheck is calculated.
Your filing status changes through marriage, divorce, or the death of a spouse.
Your dependents change: a birth, an adoption, or a dependent leaving the household.
You pick up a new income source such as a second job, rental income, or freelance work.
Your deductions or credits shift significantly, such as a new mortgage, large medical expenses, or qualifying for an Oregon credit you didn’t have before.

If you claimed exempt last year, you have to refile by February 15 or your employer will begin withholding at a flat 8 percent of your wages.² That rate rarely matches real liability, so renew on time.

Line 1: Filing Status

The three choices don’t line up with the labels on your tax return, so read carefully:³

Single. Use this if you’ll file as single, married filing separately, or head of household on your Oregon return.
Married. Use this if you’ll file as married filing jointly or as a qualifying surviving spouse.
Married, but withhold at the higher single rate. Use this if you’re married but want more tax taken from each check. It’s a common choice when both spouses work or one spouse has significant outside income.

Your choice here determines which withholding table your employer uses, so getting it right prevents the most common over- and under-withholding problems.

Worksheet A: Personal Allowances

Worksheet A is where most people start. Every allowance you claim reduces the tax withheld, so claiming the correct number keeps your paycheck withholding close to your actual annual tax bill.³

Line A1: enter 1 for yourself, unless someone else can claim you as a dependent.
Line A2: enter 1 for your spouse if you’re married and plan to file jointly.
Line A3: enter the number of dependents you’ll claim on your Oregon return.
Line A4: add lines A1 through A3.
Line A5: if wages from this job exceed $8,300 per month (or $16,600 if you marked one of the Married boxes), enter 0. Otherwise enter the number from line A4.

The income cap on line A5 exists because allowances can under-withhold high earners too aggressively. Above the threshold, the allowances from this worksheet zero out and you lean on Worksheet B or C for fine-tuning.

If Worksheet A covers your full situation (one job, no unusual deductions, no significant non-wage income), copy the number from line A5 straight to line 2 of the form. You’re done with the worksheets.

Worksheet B: Deductions, Adjustments, and Credits

Use Worksheet B if you expect Oregon itemized deductions well above the standard deduction, if you have federal adjustments to income such as student loan interest or IRA contributions, or if you qualify for Oregon tax credits beyond the standard exemption credit. The 2026 Oregon standard deduction is $2,910 for single filers claiming fewer than three allowances, and $5,820 for single filers claiming three or more allowances or for married filers.⁴ If your itemized deductions don’t exceed those amounts, Worksheet B won’t help.

The worksheet converts dollar amounts into allowance equivalents payroll systems can use:³

Line B1: your estimated 2026 federal losses or adjustments to income.
Line B2: your estimated 2026 Oregon deductions or subtractions above the standard deduction.
Line B3: add B1 and B2.
Line B4: divide line B3 by $3,200 and round to the nearest whole number. Each $3,200 in deductions equals one allowance.
Line B5: your estimated 2026 Oregon tax credits, other than the regular exemption credit.
Line B6: divide line B5 by $250 and round to the nearest whole number.
Line B7: add B4 and B6.
Line B8: enter the number from Worksheet A, line A4.
Line B9: add B7 and B8. This is your total allowance count if you have only one job and no other income.

Move the number from line B9 to line 2 of the form, unless you also need Worksheet C.

Worksheet C: Multiple Jobs and Other Income

Worksheet C is the one people skip and regret at tax time. If you hold more than one job at once, your spouse also works, or you receive non-wage income like rental payments or freelance earnings, this worksheet prevents the under-withholding that happens when each employer applies its own set of low-rate brackets to your wages.³

Complete Worksheet C only once, even if you have several jobs. The result tells you what to put on each job’s OR-W-4.

Line C1: your estimated 2026 Oregon additions and non-wage income.
Line C2: divide line C1 by $3,200 and round to the nearest whole number.
Line C3: look up your value in the multiple-jobs table below. If you have only one job, enter 0.
Line C4: add C2 and C3.
Line C5: enter the number from Worksheet B, line B7 or B9, or from Worksheet A, line A4, depending on which worksheet you used.
Line C6: compare C5 and C4 to work out your allowances for each job.

The Multiple-Jobs Table for Line C3

For single, head of household, or married filing separately filers:

No job pays more than $3,300 per month: enter 2.
Only one job pays more than $3,300 per month: enter 4.
At least two jobs each pay more than $3,300 per month: enter 6.

For married filing jointly or qualifying surviving spouse filers:

No job pays more than $4,100 per month: enter 3.
Only one job pays more than $4,100 per month: enter 6.
At least two jobs each pay more than $4,100 per month: enter 9.

Splitting the Result Across Jobs

After comparing C5 and C4, you land in one of three cases:³

C5 is greater than C4. Subtract C4 from C5. Enter that result on line 2 of the OR-W-4 for one job that pays less than $8,300 per month ($16,600 if married). Enter 0 on line 2 for all other jobs. Skip the rest of the worksheet.
C5 equals C4. Enter 0 on line 2 for all jobs. Skip the rest.
C4 is greater than C5. Enter 0 on line 2 for all jobs, then continue to line C7 to calculate an additional dollar amount per paycheck. Multiply the net additional income figure on line C7 by $280 to estimate the extra tax, then divide by the pay periods remaining in the year to get the per-paycheck amount for line 3.

The detail people miss: you give a separate OR-W-4 to each employer, but the worksheets get done only once. Any extra withholding goes on just one job’s form, and every other job’s form carries 0 on lines 2 and 3.

Line 4: Claiming Exemption from Withholding

If you expect to owe no Oregon income tax for the year, you can tell your employer to withhold nothing. Two things must be true: you had no Oregon tax liability last year and got a full refund of any tax withheld, and you expect the same result this year.⁵ You can also claim exempt if your wages aren’t subject to Oregon taxation at all, such as certain tribal members working on reservation land.

To claim it, enter the appropriate exemption code on line 4a and write “Exempt” on line 4b.³ The codes are listed in the form’s instructions; pick the one that matches your situation even if more than one technically applies.

The exemption expires on February 15 of the following year.⁵ Miss the deadline and your employer must withhold at the flat 8 percent rate.² If you realize mid-year that you will owe tax after all, file a new OR-W-4 right away rather than waiting for the exemption to lapse.

Submitting the Form

Sign the form and give it to your employer’s payroll or HR department. You don’t send it to the Oregon Department of Revenue yourself.⁶ Most employers apply the new withholding within a pay cycle or two.

The Department of Revenue can review your allowances or exemption claim. Your employer may be required to send a copy of your OR-W-4 to the department, and if the department finds your claimed allowances lack a reasonable basis, it can direct your employer to disregard the form and withhold at 8 percent instead.² Keep a personal copy of every OR-W-4 you turn in. If a dispute comes up, you’ll want proof of what you filed.

If you want to pressure-test your numbers before signing, Oregon offers a free withholding calculator through its Revenue Online portal. Enter wages, filing status, number of jobs, and credits, and it shows the per-paycheck result under different allowance choices.⁷

Penalties for Getting It Wrong

If you claim allowances or an exemption without a reasonable basis, the Department of Revenue can assess a $500 penalty against you on top of any tax owed.⁸ The department can waive the penalty if your year-end tax liability turns out to be fully covered by credits and estimated payments, but that’s a gamble most people shouldn’t take.

If your withholding falls short, interest accrues on the underpayment at the rate the department sets each year under ORS 305.220.⁹ You can generally avoid underpayment interest by making sure your total withholding and estimated payments equal at least 90 percent of your current-year tax or the applicable percentage of your prior-year tax, whichever is smaller. The specific prior-year percentage is set annually by the department.

A Note for Cross-State Workers

Oregon generally taxes wages based on where the work is physically performed, and Oregon has no reciprocity agreement with any neighboring state.¹⁰ If you live in Oregon but commute to Washington, your Washington-source wages aren’t subject to Oregon withholding. If you live in Washington and work in Oregon, your employer must withhold Oregon tax on the Oregon wages. Remote workers who split time between states may need withholding in both. Raise this with payroll at the start, because fixing it after year-end is far harder.

1
OregonLaws. Oregon Code 316.167 – Withholding of Tax Required
2
Oregon Department of Revenue. 2026 Oregon Combined Payroll Tax Report
3
Oregon Department of Revenue. 2026 Form OR-W-4, Oregon Withholding Instructions
4
U.S. Department of the Interior. Tax Changes Implemented Pay Period 2026-04: MI and OR
5
Oregon Public Law. OAR 150-316-0237 – Employees Exempt from Withholding
6
Oregon Department of Revenue. 2026 Form OR-W-4 Oregon Withholding Statement and Exemption Certificate
7
Oregon Department of Revenue. Do a Paycheck Checkup with the Oregon Withholding Calculator
8
OregonLaws. Oregon Code 316.177 – Reliance on Withholding Statement or Exemption Certificate
9
OregonLaws. Oregon Code 316.587 – Effect of Underpayment of Estimated Tax
10
OregonLaws. Oregon Code 316.162 – Definitions for ORS 316.162 to 316.221