On what date do you join the company and pay social security?

The social security of the unit shall be paid before the 5th of each month, which shall be the same as that of the whole country. Individuals should pay social security and medical insurance before the 27th of each month. Every company is different.

Take our company as an example: our company will hand it in on June 15 every month, and will join the company before June 15, and leave the company after June 15. Therefore, if you change companies, you can leave after this month 15, and start work before next month 15, and adjust for one month. So it won't break. Beijing requires social security for five consecutive years to enjoy some benefits, and other places don't know if there is such a requirement. If not, it doesn't matter if it is broken. And some units are broken, as long as they can be made up within one year. past years

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