The aim of the publication is to present the factors that influenced the current model of identity identification methods in the preparation and submission of financial statements and to define the criteria for assessing the optimal type of electronic signature. Financial statements are prepared in an electronic form and bear a qualified electronic signature, a trusted signature or a personal signature. Therefore, a universal solution for public entities is applied. However, the digitization of financial statements is distinguished by the fact that public authorities have created a number of portals and applications supporting the use of electronic signatures, in particular trusted signatures. Determining the preferred type of electronic signature depends on the degree of use by a specific entrepreneur of electronic communication in business transactions. A qualified electronic signature is a paid instrument, while a trusted signature and personal signature are free tools.