Can I pay social security in my new company without leaving my job?

Yes, but the original unit will return the social security. If the original unit has not stopped insurance, it is impossible to pay social insurance premiums.

According to the query of Baidu Law Pro. Com, you can pay social security in the new company if you don't leave your job. Because the resignation certificate is a cancellation work order, the original company can be required to cancel the social security, and the new company can pay. If the employee terminates the labor relationship with the original unit in the overall planning area, the original unit shall complete the social security suspension for the employee within 15 days. Employees can pay social security in the new unit when the original unit stops insurance. If the original unit has not stopped insurance, it is impossible to pay social security fees. It is not directly related to whether the company issues a refund order to employees. In the same overall planning area, employees can only pay social security in one unit. Without the surrender of the original unit, the new unit cannot pay. If this happens, employees should find the original unit to deal with it in time.