When does social security expire every month?

Legal analysis: the deadline for social security payment every month is 19. Before 19 every month, social security is divided into unit social security and individual social security. For the company's social security, online declaration and self-service payment are adopted. Under normal circumstances, the Social Security Bureau will lock the social security account of the corresponding company on 19 every month. That is, 19 is the demarcation point. Pay the social security fee for the current month before 19, and only pay the social security fee for the next month after 19. Generally, after locking the company books, the Social Security Bureau will deduct the social security expenses of each employee from the social security accounts of each company on the 20th. After 23rd, every employee can check the payment details of his social security account accordingly. 20th to 23rd is the refresh period after social security deduction.