Who should I pay personal social security contributions to?

The payable amount is that individuals and employers bear social security fees according to a certain proportion and hand them over to local social security institutions, so both the payable amount and individual payment amount are handed over to local social security institutions;

The social security agency will divide the social security fees received into two accounts in proportion, one is the overall account of the social security agency and the other is your personal account. We can understand the difference between these two accounts in this way: personal accounts and social security agencies are the same as banks. You can deposit or deduct as much as you take and reimburse, while the overall account has nothing to do with how much you deposit, which represents the local social security level. If insurance is transferred from one city to another, the amount of money in the personal account can be transferred unchanged, and the social security benefits after arriving in the new city are linked to the social security benefits of the new city.