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Updating Vendor Information (W9 Form)

Why update my Vendor Information?

An updated W-9 is needed for:

  • Change of Address
  • Tax ID Update, and/or
  • DBA Change

Start by downloading the W-9 form.    Click Here

Complete the downloaded W-9 with the following information:
  • Your current name or business name
  • DBA
  • Address
  • Tax ID, and
  • Tax Status
  • Your signature and Date
Submitting W-9 changes is easy

  • Simply print, complete and sign the W-9 form.
  • Scan and email the completed/signed form to
  • Or you may mail it to:

    Travis County Auditor's Office
    P.O. Box 1748
    Austin, Texas 78767
    ATTN: Disbursements Auditing

  • Thanks for helping us “go green”.

Need Additional Support?

For technical support
email Team FSIR at:

 - or - 

512-854-8345   (M-F 8a-5p)

For account related questions
email Accounts Payable at:

 - or - 

512-854-9125   (M-F 8a-5p)

*Let the receptionist know you have an account related question. They'll get you routed to the right folks to address your needs.