How to deal with the inconsistency between social security and tax return base?

Social insurance base, referred to as social insurance base, refers to the social insurance payment base of employees in a social security year. It is determined according to the average monthly wage income of employees from June 1 day to February 1 day in the previous year.

In this way, the base of social security and individual tax declaration is likely to be different, and many provinces and cities are based on the local average wage.