W-4 Form Guide
Learn how to fill out your W-4 form correctly to ensure the right amount of tax is withheld from your paycheck.
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. The amount withheld depends on your filing status, income, dependents, and other factors.
This guide describes the 2026 Form W-4. The IRS revises the form each year, so download the current version from IRS.gov before you fill it out.
When to Fill Out a W-4
- • When you start a new job
- • After marriage or divorce
- • When you have or adopt a child
- • If you have additional income
- • When your deductions change significantly
Goals of Proper Withholding
- Avoid owing taxes at filing time
- Maximize your take-home pay
- Prevent penalties and interest
- Keep your money working for you
- Better budget throughout the year
Step-by-Step Guide to Filling Out Form W-4
Personal Information
Enter your basic information:
- • Full name (first, middle initial, last)
- • Social Security Number
- • Address
- • Filing status (check only one box)
Tip: Your filing status on W-4 should generally match your tax return filing status.
Multiple Jobs or Spouse Works
Complete this step if you:
- • Have more than one job at a time, OR
- • Are married filing jointly and your spouse also works
You have three options:
Option A: Online Estimator (Recommended)
Use the IRS Tax Withholding Estimator at IRS.gov for the most accurate results. If you (or your spouse) have self-employment income, use the Estimator rather than the worksheet or checkbox.
Option B: Multiple Jobs Worksheet
Complete the Multiple Jobs Worksheet included with Form W-4, and enter the result in Step 4(c) of the W-4 for the highest-paying job only.
Option C: Check the Box
If there are only two jobs total (for example, you and your spouse each have one job), check box 2(c) on the W-4 for both jobs. This works best when the two jobs pay about the same; otherwise it may withhold more than needed.
Important: If you use the checkbox, it must be checked on both jobs' W-4s. If you use the worksheet, its result goes on the highest-paying job's W-4 only. Complete Steps 3 through 4(b) on only one W-4; withholding is most accurate if you do this on the W-4 for the highest-paying job.
Claim Dependents
If your total income will be $200,000 or less ($400,000 or less if married filing jointly), you can claim your dependents.
Calculation:
- • Qualifying children under 17: Multiply number of children by $2,200
- • Other dependents: Multiply number of other dependents by $500
- • Add the two amounts and enter the total
Example: If you have 2 children under 17 and 1 elderly parent you support: (2 × $2,200) + (1 × $500) = $4,900
Other Adjustments (Optional)
This step is optional but can help fine-tune your withholding:
4(a): Other Income
Include income not from jobs (interest, dividends, retirement income). This increases withholding.
4(b): Deductions
If you plan to itemize deductions or claim other deductions beyond the standard deduction, enter the amount here. This decreases withholding.
Common deductions: mortgage interest, charitable contributions, state/local taxes
New for 2026: The Step 4(b) Deductions Worksheet now also covers the new deductions for qualified tips, qualified overtime pay, qualified car loan interest, the senior deduction for people 65 and older, and the charitable deduction for people who don't itemize. You can use it even if you take the standard deduction.
4(c): Extra Withholding
Enter any additional amount you want withheld from each paycheck. Useful if you're self-employed on the side or want to ensure you don't owe at tax time.
Sign the Form
Sign and date the form. Without your signature, the form is not valid!
Remember: Your employer cannot process your W-4 without your signature.
Common W-4 Scenarios
Single, One Job, No Kids
This is the simplest scenario:
- Step 1: Enter personal information, check "Single"
- Step 2: Leave blank
- Step 3: Leave blank
- Step 4: Leave blank (unless you have other income/deductions)
- Step 5: Sign and date
Married, Both Spouses Work
Requires coordination:
- Step 1: Check "Married filing jointly"
- Step 2: Use option (a), (b), or (c); if you use the checkbox, check it on both spouses' W-4s
- Steps 3 and 4(a)-4(b): Complete on one W-4 only, preferably the higher-paying job
- Step 4: Add extra withholding if needed
- Step 5: Sign and date
Single Parent (Head of Household)
More favorable tax brackets:
- Step 1: Check "Head of household"
- Step 2: Complete if you have multiple jobs
- Step 3: Claim your qualifying children
- Step 4: Add deductions or extra withholding
- Step 5: Sign and date
Working Multiple Jobs
Prevent under-withholding:
- Two jobs total: check box 2(c) on both W-4s
- Or use the Multiple Jobs Worksheet and enter the result on the highest-paying job's W-4 only
- Complete Steps 3 through 4(b) on one W-4 only (preferably the highest-paying job)
- Consider extra withholding in Step 4(c)
- Review your withholding mid-year
Claiming Exempt From Withholding
You can claim exemption from federal income tax withholding only if you had no federal income tax liability last year and expect none this year. If you qualify, follow the exemption instructions on the current Form W-4.
An exemption lasts for one calendar year. To keep it for 2027, give your employer a new W-4 claiming exemption by February 16, 2027. If you don't, your employer will start withholding federal income tax again.
Don't Forget Your State Form
Form W-4 covers federal withholding only. Your state has its own form:
- • Indiana: Form WH-4, which also sets your county of residence and county of work for county income tax
- • Kentucky: Form K-4
If you live in Indiana and work in Kentucky (or the reverse), ask us which forms your employer needs.
Important Tips
Review Annually
Check your withholding every year, especially after major life changes like marriage, divorce, or having children.
Check Your Paystub
After submitting a new W-4, review your next paystub to ensure the withholding amount looks correct.
Find the Balance
Aim for a small refund or small amount owed. A large refund means you're giving the government an interest-free loan.
Use Calculators
The IRS Tax Withholding Estimator and our withholding calculator can help you determine the right amount.
Need Help with Self-Employment Taxes?
If you're self-employed or receive 1099 income, use our Estimated Tax Calculator to estimate your quarterly tax payments.