Form W-4: Employee's Withholding Certificate
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JustFill is not affiliated with IRS. This is an independent third-party tool to help you complete Form W-4. Always download the current blank form from the official source and verify your completed copy before signing or submitting. Official Form W-4 from IRS
Form W-4, Employee's Withholding Certificate, is the IRS form a US employee gives their employer so the correct amount of federal income tax is withheld from each paycheck. You complete Step 1 (personal info and filing status) and Step 5 (sign), plus optional Steps 2–4 for multiple jobs, dependents, and adjustments. You give it to payroll, not the IRS. With JustFill you upload the blank IRS W-4 PDF, the AI auto-detects each field, and you fill and download the completed W-4 free.
Form W-4 is the IRS document an employee gives their employer so the right amount of federal income tax is withheld from each paycheck. Every new hire in the United States completes a W-4 on or before their first day, and existing employees update it whenever their tax situation changes — marriage, divorce, a second job, a new child, or large itemized deductions. The 2020 redesign removed allowances; employees now report income and adjustments directly.
What each section of Form W-4 asks for. JustFill’s AI will detect these fields automatically when you upload the PDF — review the breakdown below so you know what to enter.
Full legal name, address, Social Security number, and filing status (single, married filing jointly, or head of household).
Complete only if you hold more than one job at a time or are married filing jointly and your spouse also works. Choose one of three methods (estimator, worksheet, or checkbox).
Report qualifying children under 17 and other dependents to get the Child Tax Credit and Credit for Other Dependents applied to withholding.
Interest, dividends, retirement income, or other non-job income you want extra withholding for.
Itemized deductions above the standard deduction (use the Deductions Worksheet).
Any additional flat-dollar amount you want withheld from each paycheck.
Employee signature and date. Without a signature the form is invalid.
Employer's name, address, first-date-of-employment, and EIN — completed by the employer for IRS records, not by the employee.
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Use one authorized employee record per spreadsheet row, map the columns to Form W-4, review every draft, and export selected PDFs together. JustFill prepares drafts; it does not sign, certify, or submit them.
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We load the official IRS blank for you — no download needed. Or upload your own copy below.
Upload your form
Choose a PDF, a Word file or an image from your files, or photograph a paper form.
PDF, Word (.docx), JPG, PNG, WebP, HEIC, GIF and BMP. Free account required, no credit card.
Your first download is free, with no watermark. After that: a watermark, or a $7 one-time pack (25 clean PDF downloads + 25 AI credits). AI detection covers up to 15 pages per run.
By uploading, you confirm you have the legal right to use this document.
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Official source: Form W-4 on IRS’s website
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