Can the employer not pay social insurance for employees with annual salary system?

Violation of the law, social insurance is paid in two parts, one part is social pooling; The other part is personal account; The social pooling part is the tax amount borne by the unit. The annual salary system is just a company's salary management method, which is different from social insurance. It is unreasonable for your company to deduct the social pooling part from its own salary and take the labor contract to labor arbitration.