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Official form guide
Form W4RU: W-4 (ru)
IRS Form W-4 (ru) is a Certificate of Employee Withholding, filed to tell the Internal Revenue Service how much federal income tax to withhold from an employee's wages. This form covers the 2026 tax year.
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IRS Form W4RU - W-4 (ru)
IRS Form W-4 (ru) is a Certificate of Employee Withholding, filed to tell the Internal Revenue Service how much federal income tax to withhold from an employee's wages. This form covers the 2026 tax year.
Risk Radar
Scan points- 1Failing to complete all relevant steps (2-4) means withholding calculations may be inaccurate for your paychecks.
- 2Omitting Step 1(b) and not confirming your name matches your Social Security card.
- 3Failing to complete Steps 2 through 4 when they apply to you, leading to incorrect withholding.
- 4Forgetting to use the W-4 App if you are filling out the form after January 1st.
- 5Not marking 'Single' or 'Married filing separately' in Step 1(c) correctly.
Plain English
This form tells your employer exactly how much federal income tax to take out of each paycheck for you. By filling it out, you control how much money goes into your hands versus what is sent to the IRS. You must provide this document to your employer so that withholding matches your expected tax liability.
Submission Date
- Filing date: 2026-01-13 09:10:49
- Preparation window: collect IDs, supporting records, and signatures in advance.
- Final review: verify names, dates, and required fields before submission.
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What this form is for
- Use this form when you need your employer to withhold federal income tax from your wages according to specific circumstances.
- Do not use it when you do not have a job or are not receiving wages that require federal income tax withholding.
- Check Form W-4 (ru) instead when you need to complete the Certificate of Employee Withholding for the 2026 tax year.
Form selector
Use this form or another form?
Have multiple jobs simultaneously
The real amount withheld depends on income from all positions.
✓ Check Step 2 (Work for Spouse) first.
Are married and filing jointly, but your spouse also works
You must address the work situation in Step 2 to ensure correct withholding.
✓ Check Step 2 (Work for Spouse).
Have income from self-employment or side jobs
If you have side income, use Option 1 of Step 2 (or the online calculator) for accuracy.
✓ Check Step 2(a).
Deadline or filing window
The Form W-4 is used continuously throughout the year to govern payroll withholdings. If you fill it out after the start of the year, or expect changes, use the IRS calculation app to determine the correct amount now. You should re-run the calculation at the beginning of the next year.
Checklist
What you need before filling it out
Personal Data (Name, SSN)
Your full legal name, middle initial, address, city/state/ZIP code, and Social Security Number. · Step 1(a) & 1(b)
Filing Status (Single/Married Filing Separately)
Check box for Single or Married filing separately. · Step 1(c)
Child Tax Credits
Number of children under age 17 multiplied by $2,200. · Step 3(a)
Other Dependents
Number of dependents multiplied by $500. · Step 3(b)
Other Income (Non-wage)
Total expected income like interest, dividends, or pension not automatically taxed. · Step 4(a)
Extra Withholding Amount
Specific dollar amount desired to be withheld per pay period. · Step 4(c)
Before you submit
- 1Fill out all required personal data in Step 1 (Name, Address, SSN).
- 2Check the appropriate box for your filing status in Step 1(c).
- 3Complete Step 2 if you have multiple jobs or are married with a working spouse.
- 4Calculate and enter total child tax credits in Step 3(a) and add to other adjustments in Step 3(b).
- 5Determine and enter the amount for Other Income (non-wage) in Step 4(a).
- 6Specify any desired extra withholding amount per pay period in Step 4(c).
- 7Sign the form, affirming under penalty of perjury.
How to file this form
- 1Complete Step 1 by entering your personal data and checking your filing status.
- 2Complete Step 2 if you have multiple jobs or are married with a working spouse; otherwise, proceed to Step 3.
- 3Calculate and enter the total tax credits from children (Step 3a) and other dependents (Step 3b) in Step 3.
- 4Enter any additional income (Step 4a), deductible amounts (Step 4b), or extra withholding amount (Step 4c) as necessary, then sign in Step 5.
Known limitations
- 1The Form W-4 (ru) does not apply if no specific adjustments are made to indicate how much federal income tax should be withheld from wages.
- 2If an employee has a spouse who files jointly, or is a qualifying widow, the form must reflect this status in Step 1(c).
- 3The Form W-4 (ru) requires that employees with multiple jobs use the Worksheet on page 3 to determine the correct withholding amount for Step 4(c).
Field map
Compact field-by-field guide
Personal Info
2 items
Your legal name and current mailing address.
Your taxpayer identification number — must match IRS records.
Filing Status
1 items
Single, Married Filing Jointly, or Head of Household (for withholding purposes).
Dependents
1 items
Number of qualifying children and other dependents.
Adjustments
1 items
Additional income not from jobs or adjustments to withholding.
Withholding
1 items
Additional amount you want withheld from each paycheck.
Certification
1 items
Your tax entity type: Individual, Corporation, Partnership, etc.
Signatures
1 items
Sign and date to certify under penalty of perjury.
Almost done reviewing the fields?
Fillable formOpen in Editor->The current edition is revision 20/26, which covers the 2026 tax year. The source directs users to use an online calculator at www.irs.gov/W4App for determining the most accurate withholding amounts.
What changed or needs a fresh check
- Edition date — confirm revision 20/26.
- Tax Year covered — confirm 2026 on Form W-4 (ru).
- OMB No. — confirm 1545-0074.
- Signature — sign under penalty of perjury, affirming the form is true and complete.
Quick Facts
Downloads
After you file
- 1Employees must provide the completed Form W-4 (ru) to their employer.
- 2The employee must sign the form before sending it in, as the form is not valid without a signature.
- 3Employees should keep a copy of the Form W-4 (ru) for their records.
- 4If changes occur in personal or financial situations, employees must fill out a new Form W-4 (ru).
- 5The employee should use the IRS Tax Withholding Estimator tool on www.irs.gov/W4App if they have concerns about Step 4(a).
Sources
- SRCForm W-4 (ru) is a Certificate of Employee Withholding, filed to tell the Internal Revenue Service how much federal income tax to withhold from an employee's wages. (Instructions p.1)
- SRCThe form covers the 2026 tax year. (Form p.1)
- SRCEmployees must provide Form W-4 (ru) to their employer. (Instructions p.1)
- SRCIf you have concerns about Step 4(a), you can enter an additional amount that should be withheld for each pay period in Step 4(c). (Instructions p.2)
- SRCThe IRS Tax Withholding Estimator tool is available at www.irs.gov/W4App, and it should be used under several conditions listed on page 2. (Instructions p.1 & p.2)
- SRCEmployees must complete the Form W-4 (ru) if their personal or financial situation changes to alter the information recorded on the form. (Instructions p.2)
- SRCThe required fields for Step 1 include Name/Middle Initial, Last Name, Address, City/State/ZIP, and Social Security Number. (Instructions p.1)
- SRCIf an employee has multiple jobs or is married with a working spouse, they must complete Step 2 of the Form W-4 (ru). (Instructions p.1)
Common confusion points
Should I complete Steps 2 through 4?
This depends on whether you have multiple jobs or are married and your spouse also works. If neither applies, skip to Step 5.
→ Check the instructions: Complete steps 2-4 ONLY if they apply to you; otherwise, proceed to step 5.
When should I use the IRS Withholding Estimator (www.irs.gov/W4App)?
Use it when filing after year start, planning part-year work, expecting changes in marital status/jobs/dependents/deductions, or receiving dividends/capital gains/SS benefits/bonuses/other income.
→ Review the list of conditions on page 2 to confirm if your situation requires using the estimator.
What is the difference between Step 4(a) and Step 4(c)?
Step 4(a) allows you to enter an additional amount for *each* pay period, while Step 4(c) is used to input a result from the multiple-job worksheet.
→ If using the estimator or having multiple jobs, ensure the correct box/field is being filled in.
When must I file a new Form W-4 (ru)?
You must fill out a new Form W-4 (ru) if changes in your personal or financial situation cause a change to the information on the form.
→ Review Step 1(c) and page 2 instructions to identify what constitutes a 'change' requiring an update.
What happens if the withholding is too low?
If less tax is withheld, you will generally owe tax (and possibly a penalty) when filing your tax return.
→ Check this statement on page 2; it confirms that under-withholding usually results in owing money later.
Does my name have to match my Social Security card exactly?
Yes, the form asks: 'Does your name match the name on your Social Security card?' If not, contact SSA or check online.
→ Referencing Step 1(b) confirms this requirement and provides the SSA phone number (800-772-1213).
Workflow map
Related forms and next steps
Before
Current
After
Often used with
⚠ If something goes wrong
- If you have concerns about Step 4(a), you can use additional amounts in Step 4(c) to adjust withholding.
Questions about IRS Form W4RU
What is IRS Form W4RU used for?
This form tells your employer exactly how much federal income tax to take out of each paycheck for you. By filling it out, you control how much money goes into your hands versus what is sent to the IRS. You must provide this document to your employer so that withholding matches your expected tax liability.
Who must file IRS Form W4RU?
An individual who earns wages must file IRS Form W-4 (ru) with their employer to determine proper federal income tax withholding.
What information does IRS Form W4RU require?
The form collects personal data in Step 1, including name and address. It also gathers information regarding marital status/filing status (Step 1(c)), dependents (Step 3), other income (Step 4(a)), deductions (Step 4(b)), and any additional withholding amounts (Step 4(c)).
When is IRS Form W4RU due?
The form is used to determine withholdings for the current year, but you should use the IRS W-4 App if you are filling it out after the start of the year or expect changes in family status, dependents, income, etc.
Where do I file IRS Form W4RU?
The form must be provided directly to your employer. The Internal Revenue Service (IRS) reviews these withholdings; for more detailed instructions and calculation help, check www.irs.gov/W4App.
How do I complete IRS Form W4RU?
First, complete Step 1 with personal details. Next, address Steps 2 through 4 based on your situation (e.g., multiple jobs). Finally, sign the form in Step 5 under penalty of perjury to certify its accuracy before submitting it to your employer.
What happens if IRS Form W4RU is filed incorrectly?
If the Form W-4 is filled out incorrectly, the IRS will review the withholdings, which means either too much or too little tax will be taken from your paychecks throughout the year.
Should I complete Steps 2 through 4?
This depends on whether you have multiple jobs or are married and your spouse also works. If neither applies, skip to Step 5. Check the instructions: Complete steps 2-4 ONLY if they apply to you; otherwise, proceed to step 5.
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