Despite the rather long period of solving environmental issues and research, the problems of attracting green financial instruments as sources of financing and stimulating the development and implementation of clean technologies have not been sufficiently studied. The aim of the study is to: conduct a theoretical analysis of the available data; identify trends and study green financial instruments and propose their classification; formulate hypotheses for the development of green financial instruments; and apply empirical methods of analysis to identify the dynamics of the development of environmental taxation in the EU budget. A theoretical analysis of available sources identified existing green financial instruments, which were classified as: (a) aimed at improving existing technologies for the production of goods and services through the development of greening and eco-modernization projects that contribute to the reduction of greenhouse gas emissions; (b) aimed at the development and implementation of innovative projects that change the technology for the production of goods and services, completely eliminating the emission of greenhouse gases. The hypotheses put forward for the study of the management of green financial instruments through the use of financial management mechanisms are formulated through theoretical analysis based on the environmental taxation of production technologies.

Anthropogenic emissions increase the concentration of greenhouse gases, including carbon dioxide, which necessitates the promotion of environmental protection as one of the most urgent tasks of European environmental policy. The reduction of greenhouse gas emissions and the development of clean technologies in production also depends on the impact of environmental taxation; in this regard, a methodology for analyzing its impact and assessment on the development of eco-friendly technologies is proposed. An analysis of environmental tax revenues to the budgets of the EU countries revealed the insufficiency of environmental revenues to cover the costs of environmental protection from the damage caused by greenhouse gas emissions, which requires the transformation of the system of fiscal mechanisms. The total receipts of all environmental taxes in the EU budget for the period 2000–2020 increased by 53%, and the receipts from taxes on greenhouse gas emissions into the atmosphere increased by 71% in the EU budget, with a tax rate increase of 1.5-fold over this period. The application of the proposed methodology made it possible to determine, on the basis of the correlation coefficient, a high connection strength of +0.971 for the period 2000–2020 between the receipts of the environmental tax for greenhouse gas emissions into the atmosphere and the total values of all environmental taxes, as well as a fairly strong feedback of +0.913 from the receipts of the environmental tax to the EU budget with gross domestic product. Therefore, it is proposed to use differentiated environmental tax rates for different stages of the development of clean technologies.

Introduction. Financial outsourcing services contribute to the effective management of economic relations arising in the process of the formation and use of financial resources. With the unchanged goal of financial outsourcing, its services are being transformed, associated with the development of the financial market and the emergence of innovative financial instruments, technologies and mechanisms. Aim and tasks. The purpose of the article is to form a methodology for studying financial markets, growth points and development trends of "green" finance and tools for sustainable business development that require the transformation of financial outsourcing services. Results. A review of sustainable business development based on the methodology of researching the green financial market and financial instruments was carried out, which consists in the use of biometric, predictive, and other methods of analysis that allow timely identification of innovative financial instruments, their development trends, empirical data on their significance, sources of funding, scale, models and trends in the development of economic relations arising in the process of environmental modernization of production. The proposed methodology for researching the financial market will make it possible to transform financial outsourcing services in a timely manner, especially for clients engaged in the development and implementation of engineering innovations aimed at developing a sustainable economy based on green finance. Conclusions. The dynamics of the development of green bonds is significantly ahead of the dynamics of the development of the financial market as a whole. The concept of organizing regional sustainable financial systems is proposed, the infrastructure of which includes a financial outsourcer that contributes to the effective attraction and use of financial resources for sustainable business development. A classification of client groups of financial outsourcing services is proposed depending on the size of business entities and the involvement of specific financial instruments and management mechanisms carried out by an outsourcer, which provides capital management using financial management mechanisms, accelerating its turnover and reuse.

Трансформація функцій фінансів дозволяє надавати замовникам аналітико-стратегічні та орієнтовані на додану вартість/цінність послуги, виступати як бізнес-партнер та консультант; стати учасником та лідером процесу прийняття рішень; впливати на покращення показників функціонування у масштабах всієї компанії. Напрямком трансформації функцій фінансів є інструментарії фінансового аутсорсингу (F&A), що забезпечує передиктивні методи обробки наборів Open даних для оптимізації доходної частини місцевих бюджетів, що дозволяє виявити додаткові джерела фінансування, які можуть бути спрямовані на стимулювання розвитку малого та середнього бізнесу в Україні. Трансформація функцій фінансів забезпечується аутсорсинговою компанією, яка здійснює облік, складає звітність та розробляє рішення, спрямовані на покращення управління фінансовою діяльністю клієнтів.

Subject. The introduction of projects for digital economy development necessitates the improvement of the management efficiency of various elements of the financial system. Objectives. The aim of the study is to justify the need to use business analytics tools in managing the financial system in the digital economy, to show that in the model of financial outsourcing it is possible to apply the tools of predicative analysis, which is performed based on digital analytics platforms. Methods. The study rests on the use of one of the methods of predicative analysis, i.e. the method of correlation analysis. Results. Business analytics tools enable to unveil the most significant factors in the development of the income part of local budgets. The correlation matrix obtained through the analytical digital platform demonstrate that the strongest correlation in the income part of local budgets belongs not only to tax revenues, but also to inter-budget transfers. Business analytics tools help provide recommendations for increasing the amount of tax revenues to local budgets. The management cost can be reduced by using financial and tax outsourcing models. The paper shows that the use of modern predicative analysis tools will increase the management efficiency and enhance the effect of indirect financing by reducing the cost of tax administration. Conclusions. To accelerate the transition to the digital economy and to the digital region, it is important to actively use business analytics techniques and the methodology for modeling the innovative intelligent systems for decision-making, including the use of artificial intelligence tools.