A copy of Avalara's W-9 for 2020 is now available.
Corporate office address
255 S. King St.
Seattle, WA 98104
Corporate phone number
Federal Tax ID
Payments and payment method:
Your Account Manager will send you a link from Sertifi, Inc. in order to complete your payment information and verification.
To reach the Accounts Receivable department, submit a support case.
Avalara’s payment terms are outlined in your contract.