Skip to main content
Avalara Help Center

Avalara Vendor Form and W-9

This article applies to:AvaTax

Download Avalara's W-9 for 2022.

Download the Avalara Client Trust W-9.

Corporate office address

Avalara, Inc.
255 S. King St.
Suite 1800
Seattle, WA 98104
Corporate Website:

Corporate phone number

(206) 826-4900



Federal Tax ID

# 91-1995935
C Corporation 


Scott McFarlane


Ross Tennenbaum

Payments and payment method:

Your Account Manager will send you a link from Sertifi, Inc. in order to complete your payment information and verification. 

Accounts receivable  

To reach the Accounts Receivable department, submit a support case

Payment terms

Avalara’s payment terms are outlined in your contract.

  • Was this article helpful?