How to fill out and sign a W-9 online
A W-9 asks a contractor or vendor for their name, business name, tax classification, Taxpayer Identification Number (TIN) and address, plus a signature and date. You can complete the whole thing online: upload the IRS W-9 PDF, type into the fields, then add your signature and the date, and download the finished form. Because a W-9 carries sensitive tax information, sending a sealed, verifiable copy is safer than a plain email attachment, every signed PDF gets a tamper-evident fingerprint and can be gated behind a one-time access code.
Drop your document here and sign it now. PDF, Word and Excel all work: a .docx or .xlsx is laid out in your browser exactly as it was written, so there is nothing to convert first. Add a signature, a date, a company stamp or a watermark, then download it sealed. Free to start, no account, and the file is never uploaded to open it.
How to fill out and sign a W-9 online, step by step
- Upload the W-9 PDF, Download the current Form W-9 from the IRS, then drop it into Quick Sign. Fillable fields are detected automatically.
- Fill in your details, Type your name, business name, federal tax classification, exemptions if any, address, and TIN (SSN or EIN). Tick the correct classification box.
- Sign and date it, Place a signature field, sign by drawing, typing or uploading your signature, and add the date in the certification section.
- Send it securely, Download the completed W-9, or send it to the requester behind a one-time access code so only they can open it. Every page carries a verification link.
What you get
- Type straight into the W-9’s fields, no printing or scanning.
- Sign by drawing, typing or uploading your signature.
- Send behind a one-time email/SMS code to protect your TIN.
- Tamper-evident seal and audit certificate on the finished form.
- Free to start; $1.50 to download or unlimited on a paid plan.
Frequently asked questions
Can I fill out a W-9 online for free?
Yes. Upload the IRS W-9 PDF to Quick Sign, type in your details, sign and date it. It is free to complete; you pay $1.50 only when you download, or nothing on a paid plan.
Is an electronically signed W-9 acceptable?
The IRS permits electronic signatures on Form W-9 when the e-signature meets its requirements (association with the record, signer intent, and a retained record). A signed PDF with an audit trail helps satisfy those conditions.
How do I protect my TIN when sending a W-9?
Send the completed W-9 through PDF Verified behind a one-time access code delivered by email or SMS, so only the intended requester can open it, rather than emailing your SSN or EIN as a plain attachment.
Do I need an account?
No account is required to fill and sign. An account helps if you want to reuse your saved signature or send the form securely to the requester.
What PDF Verified is, and what it is not
PDF Verified is a tool for preparing, signing, stamping and checking documents. It is not a law firm, a compliance service or a forensic examiner, and nothing here is legal, financial or compliance advice. Requirements differ by country, by document type and by the party asking, so check what applies to your document before you rely on it, and take advice where the document matters. You are responsible for the documents you create, sign and send, and for having the authority to do so: signing or stamping in somebody else name, or as an organisation you do not represent, is forgery whatever tool is used. To the extent the law allows, we accept no liability for how a document made with this tool is used or relied on. The full position is in our terms of service.