An accounts officer manages the financial bookkeeping of a business or organization. Each day, an accounts officer processes invoices, records payments, and track expenses of the organization. Communicating with customers is a regular duty of this job. An accounts officer sends bills to customers; processes refunds; interacts with collection agencies on past-due accounts; and, works to resolve billing disputes. Some organizations rely on an accounts officer to create and monitor internal auditing procedures and to solve a problem when accounting numbers are not balanced.