Why did I pay my social security last month this month?

Pay in the current month, use in the current month and pay at the beginning of the month. Every month 1- 10 is the audit period of social security agencies, and the accepted increase and decrease businesses are audited and settled to verify the collection data of the current month; Every month 1 1 to the last working day of the month is the time for accepting the declaration. If the payer has any personnel increase or decrease, it must go through the relevant formalities in the social security agency in time in the current month (the annual declaration does not accept personnel increase or decrease in the current month, except for new units in the current month).