Partner with Commercial, Legal, Operations, Billing, and IT teams to operationalize taxability determinations in ERP, billing, and order-to-cash systems, supporting accurate tax calculation, exemption certificate management, and customer invoicing. Develop, maintain, and periodically refresh product and service taxability matrices for sales and use tax, VAT, GST, and other indirect tax purposes, ensuring accurate tax treatment across jurisdictions, customer types, and transaction categories.