The theoretical, methodological and practical principles of budget planning are considered in the work. The main economic and political factors that affect the quality of budget planning in a crisis economy are highlighted. The quality and efficiency of budget indicators planning during destructive events, internal and external threats are analyzed. The effectiveness of the state budget policy largely depends on effective budget planning. The principles of medium-term budget planning (Budget Declaration), which were introduced in our country and which aim to determine the general budget indicators for the next three years, should ensure the implementation of medium-term and long-term budget programs. However, the changing macroeconomic situation in the country and global economic challenges force the Budget Declaration to be revised annually. The main document of budget planning is the law on the State Budget of Ukraine for next year, and therefore the accuracy and completeness of its implementation depends on both medium-term budget planning and budget policy. The revenue part of the State Budget of Ukraine has a decisive influence on the formation expenditure’s part of the State Budget of Ukraine and a significant impact on the formation of local budgets. Therefore, the quality and accuracy of revenue planning is a necessary guarantee of socio-economic development of the state in the planned budget period. The execution of the revenue side of the state budget is also greatly influenced by foreign economic factors, which are not always predictable even for developed economies with a long history of budget risk forecasting, and for Ukraine sometimes become catastrophic, because our country does not have reserve funds as countries with developed economies. The purpose of the article is to consider and evaluate the theoretical and methodological and practical provisions of budget planning and develop on this basis practical recommendations for its improvement. In view of this, the paper revealed different approaches to the definition of «budget planning». The article considers the existing approaches to planning the revenue and expenditure side of the state budget. The authors identified factors that affect the quality of budget planning. The paper presents proposals for improving the efficiency of budget planning.