Assistant controllers are financial professionals who assist the controller in the accounting department of a company or organization. Responsibilities of an assistant controller include working with the controller on the preparation of financial statements, participating in annual audits, managing invoices, meeting industry guidelines, and following state and federal accounting laws. Assistant controllers’ duties include reconciling accounts on a quarterly basis, and they must have skills in developing financial reports for forecasting and reporting. Assistant controllers are generally not required to have their CPA designation.