How to merge the social security of the three places? (Suzhou, Shenzhen, Nanjing)

Now the social security number will be the same as your ID number. You can directly ignore how many years of social security you have paid in various places, because when you retire, you can directly check your payment records through the national online database and then merge them.

Therefore, when you retire, you can directly transfer your social security paid in various places back to your household registration (this method is recommended).

Or pay social security in a certain place 15 years or more, you can transfer the social security paid in other places to A, and you can apply for retirement in A. ..