3. If the contents of the taxpayer's tax registration change, it shall report to the original tax registration authority with relevant documents within 30 days from the date when the administrative department for industry and commerce or other organs handle the change registration; If the contents of the taxpayer's tax registration change and it is not necessary to go to the administrative department for industry and commerce or other organs for registration of change, it shall, within 30 days from the date of change, report to the original tax registration authority with relevant documents.