If the insured person needs to apply for resignation, he should submit his resignation application 30 days in advance. If he doesn't submit his resignation application 30 days in advance, the enterprise can't declare social security relief. In this way, if employees leave early, they must bear all the social security expenses of the month.

Social security regulations: the application for social security reduction in the current month will take effect the next month, and the application for social security increase in the current month will take effect the same month.