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Fill out Form W-9

Request for Taxpayer Identification Number and Certification. The IRS's own form, ready to type on: click a field, type, sign and date it, and download. What you type never leaves this device.

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About this form

The form a US business asks for before it pays you as a contractor or vendor: your name, tax classification, address and taxpayer identification number.

This is the IRS's own PDF, Rev. March 2024, as published at irs.gov. The IRS explains who needs it and how to fill it in on its Form W-9 page, which also lists any newer revision: check before you send it.

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In your code

Filling Form W-9 for many people? POST /v1/fill takes the IRS's PDF by its URL and the values by the form's own field names, which POST /v1/extract lists with "include": ["fields"]. One document per fill.

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curl https://api.pdfedge.com/v1/fill \
  -H "X-API-Key: $PDFEDGE_KEY" -H "Content-Type: application/json" \
  -d '{"file":"https://www.irs.gov/pub/irs-pdf/fw9.pdf","data":{"topmostSubform[0].Page1[0].f1_01[0]":"Riverside Rowing Club"}}'

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