Will it matter if social security is postponed for a few days?

Legal analysis: it will have an impact. Late arrival requires payment and late payment. If you don't pay for a long time, you may be fined.

Legal basis: Article 85 of People's Republic of China (PRC) Social Insurance Law. If the employer fails to pay the social insurance premium in full and on time, the social insurance premium collection agency shall order it to pay within a time limit or make up for it, and impose a 0.5% late fee on a daily basis from the date of default. Failing to pay within the time limit, the relevant administrative departments shall impose a fine of more than one time and less than three times the amount owed.