W9er
Form W-9 · Request for Taxpayer Identification Number and Certification
W9er

The fast and secure way to send a W-9.

Three short steps. We fill in the latest IRS form and email it straight to whoever asked for it.

Start your W-9

$0.99 per send · No account · Or start from ChatGPT or Claude ↓

  • No printer.Type your signature in the browser. No scanning, no juggling PDFs or e-signature apps.
  • Never stored.Encrypted, used once to fill and send your W-9, then deleted.
  • Latest form.Always the current IRS revision, so nobody sends it back.
  • Under a minute.Fill it in, check out, and it's in their inbox.

Part IStart it from your AI assistant

Let your assistant do the easy parts.

  1. 1Copy the prompt and paste it into ChatGPT, Claude or any assistant.
  2. 2Answer its questions about the easy parts: name, address, recipient.
  3. 3Open the link it gives you, then add your tax ID and signature here.
How the handoff works
I need to send a W-9. Help me do it with W9er. Read https://w9er.cc/llms.txt for the link format, then ask me for the non-sensitive details and build me a prefill link. Do not ask for my SSN, EIN or signature. I'll enter those on the secure form myself.

Part IIFrequently asked questions

Is my tax information secure?

Yes. It stays in your browser until you check out. Then it's encrypted, used once to fill out and email your W-9, and deleted. We never keep a copy.

How does the signature work?

Type your name. The IRS accepts typed signatures on W-9s as long as they're dated, which we handle automatically.

Why $0.99?

The small fee helps us maintain the service and cover email delivery costs.

Can I use it for my business?

Yes. Sole proprietors, corporations, LLCs, partnerships, trusts, any entity type. We keep the form on the latest revision.

What happens after I send?

Your recipient gets it immediately and you're BCC'd, plus a separate confirmation email. Form data is cleared from your browser. We keep no copies.

Can my AI assistant start it for me?

Yes. ChatGPT, Claude and other assistants can hand you a link with your name, address and the recipient already filled in. You still enter your tax ID and sign here, so they never pass through the chat.