According to the Anhui Provincial Taxation Bureau website of the State Administration of Taxation, the social credit code is not a tax number. There are differences between the two, as follows: Social Credit Code: Also known as the Unified Social Credit Code, it is an 18-digit code used for the identification of legal persons and other organizations. It is assigned by the industrial and commercial registration department to enterprises, institutions, individual industrial and commercial households, etc. It contains information such as organization code, registration number, verification digit, etc., which is used to identify the identity and credit information of the enterprise, and is helpful for corporate account inquiries, financial statement filing, tax declaration, and credit management. The social credit code is a nationwide unique legal identity code that remains unchanged for life. It consists of five registration management department codes, organization category codes, registration management agency administrative division codes, subject identification codes (organization codes) and check codes. Partially composed. Tax ID: The full name is Taxpayer Identification Number, which is a combination of numbers or letters used by tax authorities to identify taxpayers. Tax ID numbers are mainly used for handling tax-related matters such as tax declarations, tax payments, and tax inspections. In China, the tax ID number usually corresponds to the registration number on the company's industrial and commercial business license, but the tax ID number and the social credit code are not the same number, and their coding rules and uses are different. Therefore, although the social credit code and the tax number are both related to the identification of enterprises, they are two different identification numbers with different coding rules and uses. However, with the implementation of the registration system reform of "three certificates in one, one license and one code", the enterprise's industrial and commercial business license, organization code certificate and tax registration certificate were merged into a business license loaded with a unified social credit code. In this case, the company's social credit code may be used as a tax ID number to handle tax-related matters, but this does not mean that the social credit code is a tax ID number.