Social security base is based on basic salary or actual salary.

The social security base is not calculated according to the basic salary or actual salary, but the basic old-age insurance premium is paid according to the proportion of the total wages of employees in this unit stipulated by the state.

When determining the social security contribution base, the following factors should be considered in the total wages payable:

1, hourly wage: including hourly wage, bonus, allowance, overtime pay, etc.

2. Piece-rate wage: including piece-rate price and piece-rate wage for completing quota.

3. Overtime wages: overtime wages paid in accordance with state regulations.

4. Wages paid under special circumstances: wages paid according to the hourly wage standard or a certain proportion of the hourly wage standard due to illness, work-related injury, maternity leave, family planning leave, funeral leave, personal leave, family visit leave, regular leave and other reasons according to national laws, regulations and policies.

The information required for social security is as follows:

1, ID card or other valid documents;

2. Household registration book or residence certificate;

3. Medical insurance card or social security card;

4. Work unit certificate or social security payment certificate;

5, hospital diagnosis certificate, medical expenses list and other related medical documents.

To sum up, different regions and policies may have slightly different requirements. Please consult the local social security bureau or social security service center or inquire about the relevant regulations before handling the specific operation suggestions. At the same time, when handling the transfer procedures, you should take good care of personal identification and other related materials to avoid being lost or stolen by others.

Legal basis:

People's Republic of China (PRC) social insurance law

Article 28

Medical expenses that meet the basic medical insurance drug list, diagnosis and treatment items, medical service facilities standards and emergency rescue shall be paid by the basic medical insurance fund in accordance with state regulations.

Article 29

The medical expenses of the insured shall be paid by the basic medical insurance fund, and shall be directly settled by social insurance agencies, medical institutions and pharmaceutical business units. The administrative department of social insurance and the administrative department of health shall establish a settlement system for medical expenses in different places to facilitate the insured to enjoy the basic medical insurance benefits.