How to Fill Out Form W-4 in 2026
Step-by-step guide to getting your tax withholding exactly right.
What is Form W-4?
Form W-4 (Employee's Withholding Certificate) tells your employer how much federal income tax to withhold from your paycheck. Filling it out correctly prevents you from owing taxes or receiving a surprise refund at filing time.
The form was redesigned in 2020 to replace "allowances" with a simpler approach based on income, deductions, and dependents.
W-4 Part 1: Personal Information
Line 1a: Your name, address, and SSN
Line 1b: Your Social Security Number
Line 1c: Address (if different from job site)
Line 1d: City, state, and ZIP code
W-4 Part 2: Filing Status
Select your filing status from:
- Single or Divorced
- Married Filing Jointly
- Married Filing Separately
- Head of Household
Note: Your W-4 filing status doesn't have to match your actual tax return status, but it should be similar to ensure accurate withholding.
W-4 Part 3: Dependent and Other Credits
Enter the number of dependents to account for the child tax credit ($2,000 per child under 17).
Example: If you have 2 dependent children, enter "2" to reduce your withholding and increase your paycheck.
You can also claim other credits like education credits if eligible.
W-4 Part 4: Other Income
If you have multiple jobs, income from a spouse, or other income sources, disclose them here to ensure correct withholding.
Multiple Jobs Worksheet: If you have more than one job, use this worksheet to calculate proper withholding across all jobs.
W-4 Part 5: Deductions
If your deductions are significantly different from the standard deduction, enter the difference here:
Example: If you'll itemize deductions of $35,000 vs. the standard deduction of $14,600 (both single), your extra deductions = $20,400.
This reduces your withholding and increases your paycheck.
W-4 Part 6: Extra Withholding
If you want extra tax withheld from each paycheck (to avoid owing at tax time), enter the amount per pay period here.
Common scenarios for extra withholding:
- Multiple jobs with significant income
- Spouse has separate income
- Expecting to owe taxes
- Prefer larger refund
When To Update Your W-4
- 📍 Marriage or Divorce: Your filing status changes
- 👶 Birth or Adoption: New dependent means new child tax credit
- 💼 New Job: Multiple jobs affect withholding
- 💰 Major Raise: Income increase may push you to higher bracket
- 🏠 Large Refund/Owing: Last year's surprise means adjust this year
Get Your Withholding Right
Use our free withholding calculator to estimate your correct withholding before filling out your W-4.
Calculate Withholding