There are several threats and opportunities in the context of digitalisation of the economy as a whole and as a financial market. Mega regulators need to consider these conditions to increase the competitive position of national financial markets. Evaluation and ranking are a well-proven management tool for making strategic decisions. In this regard, it is necessary to form a methodological basis for forming an assessment of the digitalisation level of the financial market. Based on the comparative approach the authors compared the most famous world indices, those are presenting the digitalisation level of the economy and society. The authors proposed an approach to forming a methodology for assessing the digitalisation level of the financial market. At the same time, the view of the Basel Committee on Banking Supervision on the significant impact of fin-tech & big-tech on the risks of the financial market was considered there. Although, the authors examined the materials of the G20 Global Partnership for Financial Inclusion (GPFI), Alliance for Financial Inclusion (AFI), the World Bank and considered the Financial Inclusion Indicators developed by the Bank of Russia. The author's approach consists of three integrated groups of indicators included in the Final Index of the digitalisation level on the financial market: "Digital infrastructure of the financial market", "Customer loyalty related to financial products and services within digital form", "Level of the financial market risk".