​Vendor Information

To receive payment from Thurston County a payee must complete and submit a Vendor Information Account Form and pass a TIN/MATCH in the IRS Data Base. 

Please contact the County Office or Department you are doing business with to obtain the necessary form to apply for a new account or update an existing one. The completed form may be submitted to our office by fax at 360.357.2481 or by mail to:

Attn: Accounts Payable
Auditor's Financial Services
2000 Lakeridge Dr SW
Olympia, WA  98502