Does the current unit have the obligation to cooperate with my original unit to pay all kinds of social security?

Usually, if you leave a company and need to pay back social security after joining a new company, the new company may need to cooperate with the relevant procedures of your old company to ensure that your social security records can be connected and paid back.

You can refer to the following steps:

Consult the human resources department: first, you can consult the human resources department of your new unit, explain to them the situation that you need to pay back social security, and ask about their policies and procedures.

Provide relevant certificates: You may need to provide resignation certificates or other relevant documents to prove your previous employer and the time period when you need to pay social security.

Contact the original unit: After consultation with the new unit, they may need to contact your original unit to communicate the specific matters of paying social security.

Handling relevant formalities: according to the requirements of the new unit and the original unit, it may be necessary to fill in relevant application forms, provide the required supporting documents, and handle supplementary formalities as required.

It is very important to keep in touch with your new and old units and understand their specific requirements and procedures. If you are in doubt or encounter difficulties, you can consult the local labor inspection department, social security institutions or professional lawyers to get more specific and accurate suggestions.