1. To apply for the tax registration certificate, you need to go to the tax department of the jurisdiction. If it is a service industry, you only need to go to the local tax for tax registration; If you are a production or business enterprise, you must register with the national tax department. 2. Tax registration must be handled within one month after obtaining the business license. You can consult the tax department for the information you need to submit when going through the formalities. In general, it is nothing more than the owner's identity certificate, a copy of the business license, and other information related to your business.