Unbind. If you can bind multiple enterprises, you can unbind them by directly logging in. If a person works as a part-time tax agent in several enterprises, he needs to provide the relevant power of attorney or agency agreement of each employer for identity information collection, and other duplicate information does not need to be provided many times. Real-name authentication According to the relevant regulations of real-name taxation, after the natural person completes the user registration of the electronic tax bureau for the first time, he needs to collect and authenticate the real-name information before handling the tax-related (charging) business. Real-name authentication is a process of associating registered users of electronic tax bureau with real-name information.