After the integration of the three certificates, there will be no separate tax registration certificate, which will be merged into the business license, but tax registration is still required according to regulations. For example, individual industrial and commercial households need to go through tax registration according to law after obtaining the business license.

Legal objectivity:

Article 16 of the Regulations on Individual Industrial and Commercial Households, the registration authority and relevant administrative organs shall publish the conditions, procedures, time limit, all materials to be submitted, and charging standards of individual industrial and commercial households' application for registration and administrative license in a way that is convenient for the public to know. Article 17 of the Regulations on Individual Industrial and Commercial Households shall, after obtaining the business license, handle the tax registration according to law. Where the contents of the tax registration of individual industrial and commercial households change, the tax registration shall be changed or cancelled according to law.