Constant innovations in finance and technology and different levels of their development worldwide necessitate investigating universal integrated indexes. It will enable a general assessment of the digitization of financial services and allow carrying out a comparative inter-nation analysis. The authors proposed to evaluate the level of digitalization of financial services (DFSI) based on three components: digital inclusion, financial inclusion, and digital financial services. The suggested approach includes several steps: 1) forming an array of input data by eight indicators; 2) establishing the priority of indicators and calculating their weights by using the Fishburne formula; 3) calculating the integral index of digitization of financial services by using the weighted sum method. According to the obtained DFSI values, the European countries were divided into four groups: with a high, medium, low, and critically low level of digitalization of financial services. Countries with a high level of DFSI are