Legal analysis: The telephone number for reporting tax evasion is 12366. According to relevant regulations, informants can report by letter, telephone or interview. When reporting, I should explain my name, ID number, work unit, home address and other relevant information to the local tax authorities that accept tax evasion cases.

Legal basis: Article 3 of the Tax Law of People's Republic of China (PRC) stipulates that the collection and suspension of taxes, as well as tax reduction, exemption, tax refund and overdue tax, shall be implemented in accordance with the provisions of the law; Where the State Council is authorized by law, it shall be implemented in accordance with the administrative regulations formulated by the State Council.

No organ, unit or individual may, in violation of the provisions of laws and administrative regulations, arbitrarily make decisions on tax collection, suspension, tax reduction, exemption, tax refund, overdue tax and other decisions inconsistent with tax laws and administrative regulations.