Legal analysis: the legal person change process of electronic tax bureau is: 1. Apply to the tax authorities for registration of change within 30 days from the date when the administrative department for industry and commerce handles the registration of change of legal person; 2. Submit business license, tax registration certificate and other materials; 3, the tax bureau after the audit, for the change of registration.

Legal basis: Article 16 of the Law of People's Republic of China (PRC) on the Administration of Tax Collection, if the contents of tax registration of taxpayers engaged in production and business operations change, they shall report to the tax authorities for the change or cancellation of tax registration with relevant documents within 30 days from the date when the administrative department for industry and commerce handles the change registration or before applying for cancellation of registration with the administrative department for industry and commerce.