Legal analysis: the word "buyout length of service" has never appeared in the national standard documents, and the expression of "buyout length of service" is neither standardized nor accurate. At best, the so-called "buyout of seniority" means that enterprises pay high economic compensation and terminate labor contracts through consultation. The termination of the employee's contract with the enterprise and the termination of labor relations only ends with the original enterprise, which has no influence on the employee's future employment. There are two possibilities for employees to leave the original enterprise. One is to become unemployed and stop paying various social security contributions stipulated by the state, but the original length of service is still retained by the new unit, and the length of service of employees is also retained. All kinds of social security contributions stipulated by the state shall be borne by the new unit, and every cent shall not be less. No matter who is unemployed or a new enterprise works until retirement, they all enjoy the retirement benefits stipulated by the state according to the continuous length of service and social security years. Therefore, the length of service of employees is basically unchanged. As for the price of "buyout length of service", it is entirely determined by enterprises according to their own affordability, and the state is not unlimited.

Legal basis: Article 72 of the Labor Law of People's Republic of China (PRC) determines the sources of social insurance funds according to the types of insurance, and gradually implements social overall planning. Employers and workers must participate in social insurance and pay social insurance premiums according to law.