Why is the social security base less this year than last year?

Legal analysis: If your income last year was lower than the year before, then you will pay less social security this year than last year.

Legal basis: Article 2 of People's Republic of China (PRC) Social Insurance Law The state establishes social insurance systems such as basic old-age insurance, basic medical insurance, industrial injury insurance, unemployment insurance and maternity insurance. To ensure citizens' right to receive material assistance from the state and society in accordance with the law in cases of old age, illness, work injury, unemployment and maternity.