W-9 Vendor File Checklist

A W-9 is one of the basic documents many businesses collect before paying a vendor. But it often gets saved with random file names or mixed into long email threads.

Quick answer
Create one folder per vendor and track whether the W-9 is received, readable, current enough for your process, and saved in the right place.

Checklist

  • vendor legal name matches payment setup
  • W-9 is readable
  • tax classification is filled out
  • signature/date is present if required by your process
  • file saved in vendor folder
  • tracker updated
  • missing information requested by email

Folder naming examples

Bad file nameBetter file name
scan123.pdfABC-Plumbing-W9-2026.pdf
document.pdfGreen-Cleaning-W9-2026.pdf
new vendor form.pdfNorth-Texas-HVAC-W9-2026.pdf

Reminder

This is an organization checklist, not tax advice. Your accountant or company policy should guide specific tax documentation rules.

Need vendor paperwork cleaned up?

If COIs, W-9s, licenses, expiration dates, and vendor folders are scattered everywhere, DamnJobs can help organize the mess.