When will the social security be paid in that month?

The processing time for monthly social security increase is from 5th to 25th of each month. According to the social security regulations, the employer must handle social security for employees and pay social security fees according to regulations. Therefore, the employer must go through the formalities of social security increase in time after hiring new employees, and then go through the formalities of social security reduction after employees leave their jobs.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.