The offices are currently testing a concept for innovative identity management. Current tax processes are still paper-based and thus offer a large target for forgeries and errors. The digital tax ID should now be an efficient solution to these problems. With the digital ID, data about the status and information for the tax office are stored on the blockchain. The data can thus be viewed easily and securely and secured against forgery by the decentralized network. First, a prototype is being tested in order to optimize the feasibility and implementation of the digital processes and make them suitable for use.