Fill W-9 Form Online Free
IRS Form W-9 is used by U.S. persons (including resident aliens) to provide their correct taxpayer identification number (TIN) to businesses that will report income paid to them. Freelancers, independent contractors, and vendors are typically asked to submit a W-9 before their first payment. Our AI fills every line — name, business name, tax classification, address, and TIN — in under 20 seconds.
In short: Request for Taxpayer Identification Number and Certification. Use DocFills to complete every field on the official PDF in under a minute — free, no signup to preview.
Who needs Form W-9?
- Freelancers and independent contractors
- Single-member LLCs receiving 1099 income
- Consultants billing U.S. companies
- Vendors providing services to businesses
What's on the Form W-9?
Here are the key fields our AI will handle for you.
Name
Your legal name as it appears on your tax return.
Business name
Only if different from your legal name (DBA, LLC name, etc.).
Federal tax classification
Individual/sole proprietor, C Corp, S Corp, Partnership, Trust/Estate, or LLC.
Exemptions
Leave blank unless you are a specific type of exempt entity.
Address
Where the requester should mail your Form 1099 at year-end.
TIN
Your SSN if you are an individual, or your EIN if you are a business.
How to fill Form W-9 online
- 1
Open the template
Click "Fill Now" — we load the official Form W-9 PDF for you.
- 2
Let AI fill it in
Answer a few quick questions or use your saved vault data. AI handles the rest.
- 3
Download the PDF
Review, make any last tweaks, and download a completed PDF ready to file.