The case of Sustaxo is an example of practical solution for sustainable finance implementation. The goal of the Sustaxo is to create a real-time economy dashboard application based on the taxonomy of European sustainable finance, which would simplify the preparation of analyses and reports required by financial institutions and large companies and would also be available to small companies. The creation of the solution is based on the principles of real-time economy, bringing together data from within the organization, from partners and from national information systems with the least administrative burden, so that the green transition creates a competitive advantage for Estonian companies instead of obstacles.