Prepare business license, tax registration certificate, legal person registration certificate, legal person ID card, labor contract of all employees, etc. (It is best to call the social security agency first) Go to the social security bureau to go through the insurance formalities. At the same time, it is necessary to determine the current payment base, and social security may require payment from the date of establishment of the enterprise. There may be a late fee. The social security telephone number 1 14 can be found.