The duties and responsibilities of a Billing Specialist include sending invoices and account updates to clients, receiving, sorting, and tracking incoming payments, addressing and resolving client questions and issues relating to invoices, and providing regular, accurate reports of billing data.A Billing Specialist oversees the tasks of sending new invoices to clients and ensuring all outstanding invoices are paid in full and on time. They are client-focused and assist them with any issues with invoices. Monitor and follow up on outstanding invoices, ensuring timely payment from clients. Respond to client inquiries regarding billing and payment. Resolve billing issues, such as discrepancies or disputes, by communicating with clients and other stakeholders. Maintain accurate and complete billing records and reports.