Three to four months. Beijing's social security relief in 2020 will start from February, general enterprises from the end of May, and small and medium-sized enterprises from the end of June, which will last for three to four months. Enterprises can also apply for holdover of social security on their own. Social security relief is like this: pension, unemployment and industrial injury insurance companies are exempted, and individuals are unavoidable; Maternity and medical insurance companies and individuals pay half. During the 20-year epidemic, Beijing reduced enterprise social security from February to June.