I left my last company and went to a new company, saying I couldn't pay social security.

Legal analysis: you can ask the social security department about the situation.

Legal basis: People's Republic of China (PRC) Social Insurance Law.

Article 1 This Law is formulated in accordance with the Constitution for the purpose of adjusting the social insurance relationship, safeguarding citizens' legitimate rights and interests in participating in social insurance and enjoying social insurance benefits, enabling citizens to enjoy the fruits of development and promoting social harmony and stability.

Article 2 The state establishes social insurance systems such as basic old-age insurance, basic medical insurance, industrial injury insurance, unemployment insurance and maternity insurance, so as to guarantee citizens' right to receive material assistance from the state and society in accordance with the law in case of old age, illness, industrial injury, unemployment and maternity.

Article 3 The social insurance system adheres to the principles of wide coverage, basic protection, multi-level and sustainability, and the level of social insurance should be compatible with the level of economic and social development.

Article 4 Employers and individuals who pay social insurance premiums according to law in People's Republic of China (PRC) have the right to inquire about payment records and personal rights and interests records, and ask social insurance agencies to provide social insurance consultation and other related services.