W-4 form: fill out and sign online, free to start
Form W-4 is the Internal Revenue Service's “Employee's Withholding Certificate.” In its words: “Complete Form W-4 so that your employer can withhold the correct federal income tax from your pay.” (IRS, About Form W-4)
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Also searched as: W4, W-4, Form W-4, W4 form, Employee's Withholding Certificate.
W-4 at a glance
| Agency | Internal Revenue Service (IRS) |
|---|---|
| What it is for | Complete Form W-4 so that your employer can withhold the correct federal income tax from your pay. |
| Who fills it | The employee, so that the employer can withhold the correct federal income tax from their pay. |
| Who it goes to | "Give Form W-4 to your employer." (printed on the form) |
| Signature | The form has a signature line in Step 5, Sign Here. |
| Revision | 2026 |
| Last checked | |
| Official form and instructions | Official form (PDF) · Official instructions |
For what to enter on each line, read the agency's instructions.
How to fill out the W-4 with PDFinish
Open the form. Press Fill it now. The form opens in Finish PDF in your browser. Nothing is uploaded.
Type in the boxes. Click a box and type, or tick a checkbox. Add your signature in the Sign step and press Lock to put your entries into the page.
Save your copy. Name the file and download it. Your original blank form is never changed.
Questions about the W-4 form
Is the W-4 form free to fill out here?
Free to start. Your 2 free uses in total need no account. Filling in a form and signing it are free; the file you download counts as one of your free uses. After that, start your 7-day free trial of Pro or buy Pro for $2.99 a month.
Is my information uploaded?
No. The form is filled in your browser and never uploaded, so what you type, including any Social Security number or other tax ID, stays on your device. We do not record what you type.
Is this the latest version of Form W-4?
It is the version the agency listed as current when we last checked on 2026-10-26: 2026. We compare our copy with the agency's every week. If the agency updates the form, this page says so and points to the official link until we update ours.
Can I sign the W-4 electronically?
Whether an electronic signature is accepted is up to whoever asked you for the form, unless the agency says otherwise. Check the agency's instructions at https://www.irs.gov/forms-pubs/about-form-w-4. PDFinish places a picture of your signature on the page; it is not a certificate-based digital signature.
Where do I send the W-4?
In the agency's words: "Give Form W-4 to your employer." (printed on the form) Read the agency's instructions at https://www.irs.gov/forms-pubs/about-form-w-4.
What do I put in each box of the W-4?
We do not tell you what to enter. The agency's own instructions explain each line: https://www.irs.gov/forms-pubs/about-form-w-4.
Related forms
- W-9 form: Request for Taxpayer Identification Number and Certification
- I-9 form: Employment Eligibility Verification
- W-4P form: Withholding Certificate for Periodic Pension or Annuity Payments
- W-2 form: Wage and Tax Statement
- 941 form: Employer’s QUARTERLY Federal Tax Return
- All forms
- Our own fillable templates
Sources
- IRS, About Form W-4: irs.gov/forms-pubs/about-form-w-4 (checked October 26, 2026)
- Official form (PDF): irs.gov/pub/irs-pdf/fw4.pdf (checked October 26, 2026)
- Official instructions: irs.gov/forms-pubs/about-form-w-4 (checked October 26, 2026)
PDFinish is not affiliated with the IRS or any government agency. The forms are the agency's own, unchanged.
General information, not tax, legal or immigration advice.