Taxpayers should collect, fill in and submit the following application materials at the tax registration management post of the competent tax authority within 30 days after the change: 1. Taxpayers need to change their tax registration due to the change of industrial and commercial registration: (1) Application for change of registration; (2) the registration form of industrial and commercial change and the industrial and commercial license (registration certificate) and their copies; (3) the resolution of the taxpayer to change the contents of the tax registration and the relevant certification materials; (4) the original tax registration materials issued by the tax authorities (original, copy, registration form, etc.). ); (5) Tax registration change form; (6) Taxpayer's tax registration form (involving tax changes); (7) Other relevant information. 2. Where the contents of tax registration are changed due to factors other than the change of industrial and commercial registration: (1) Apply for registration of change; (2) the resolution of the taxpayer to change the contents of the tax registration and the relevant certification materials; (3) the original tax registration information issued by the tax authorities (original, copy, registration form, etc.). (4) tax registration change form; (5) Taxpayer's tax registration form (involving tax changes); (6) Other relevant information. The tax registration management post examines and accepts whether the forms filled in by taxpayers meet the requirements and whether the attached materials are complete and meet the requirements. 1. Check the change registration form and attached materials submitted by taxpayers, and check whether the contents are accurate and whether there are any omissions. 2, change the legal representative, use the legal representative's ID number for audit comparison, check whether there is a record of failure to fulfill tax obligations. (4) The tax authorities that issue certificates shall review and handle the change of tax registration within 30 days from the date of acceptance. If the contents of the taxpayer's tax registration form and tax registration certificate change, the tax authorities shall renew the tax registration certificate according to the changed contents; If the contents of the taxpayer's tax registration form have changed but the contents of the tax registration certificate have not changed, the tax authorities shall not issue a new tax registration certificate.