Proceedings of the International scientific and practical conference ―Modern Research and Education‖ (May 2-4, 2026) / Publisher website: www.naukainfo.com. – Warsaw, Poland, 2026. - 523 p.

37 principle ( efficiency and effectiveness ) on which the budget system of Ukraine is built is not fully implemented, it is impossible to achieve proper stability of the financial system. In addition, this may act in the future (under appropriate circumstances) as a destabilizing factor for the stability of the country's financial system. After all, the budget system is a component of the financial system, and a failure in its effective functioning or the implementation of an ineffective, including insufficiently effective, budget policy will negatively affect the integrity of the effective functioning of the financial system, which can certainly undermine its stability. That is, the stability of the budget system and each budget in particular (state and local) is an important element in ensuring the stability of the entire financial system of the country. The National Bank of Ukraine should analyze not only the general condition of the country's financial sector, but also the relationships between its main players, including the public finance sector, because the financial crisis of 2008-2009 clearly demonstrated the need for such measures to prevent future crises. Currently, it is necessary to combat systemic risks that threaten the stability of the financial system. Since, in adverse circumstances, they can lead to the fact that the system will temporarily be unable to properly perform its functions. An example of such a situation can be the difficult period of our modern history of 2014-2015 and the beginning of Russia's full-scale invasion of the territory of Ukraine (02/24/2022), when the banking system of Ukraine was actually paralyzed. There was a massive outflow of deposits, when it was impossible to freely dispose of funds, there were restrictions on withdrawing funds from deposits, etc. The National Bank of Ukraine must anticipate and prevent such situations, control possible risks and shocks. Determine whether the financial system has a margin of safety to withstand catastrophic consequences for the economy, the coherence of budgetary policy, the inefficiency of the use of budgetary funds, etc. In the current conditions, the issue of both studying the vulnerability of the financial system and developing effective tools to prevent possible future risks, forming the basis for the stability, reliability, dynamism and continuity of the