In this work, the authors have examined the concept of “standards” and “standardization” relating to public finance and public financial control. It was recognized that national financial systems activities should be based on generally accepted international standards in order to enhance professionalism and efficiency. Attention was paid to the peculiarities of national standards of the United States of America and European Union countries, in particular the United Kingdom of Great Britain, Lithuania, Georgia. As part of the analysis of the Association Agreement on Public Internal Financial Control, it was determined that cooperation between Ukraine and the European Union, the European Atomic Energy Community, and their Member States takes place through harmonization with the following international standards: the Institute of Internal Auditors (EA IIA), The International Federation of Accountants (IFAC) and International Organisation of Supreme Audit Institutions (INTOSAI). Much attention was paid to the concept of public internal financial control developed by the European Commission to provide a viable model capable of assisting national governments in revising internal controls in the field of finance and modernizing them in accordance with international standards and best practice in countries- members of the European Union. The scope of the aforementioned concept, its essence, its main elements, and features was determined. The standards of the international organization INTOSAI were analyzed, containing the guiding principles of the audit activity, the peculiarities of their implementation and direction; the activities of the International Professional Association of Internal Auditors EC IIA (European Confederation of Institutes of Internal Auditing); standards developed by the International Federation of Accountants (IFAC); the activities of the Committee of Sponsoring Organizations of the Treadway Commission COSO. In addition, the article identified the essential elements of an efficient and effective internal financial control system. Keywords: standardization, state financial control, international standards.