In Jiangsu Lianyungang, the main differences between the social security base of 14,900 yuan and 5,000 yuan are as follows:

1. Payment amount:

• Employee contribution: If the base is 14,900 yuan, the amount paid by employees for each social insurance type will be higher. For example, for pension insurance, if the personal contribution rate is 8%, the monthly personal pension contribution is ​
  ×8%=
  yuan. If the base is 5,000 yuan, the monthly personal pension contribution is ​
  ×8%=
  yuan. The same logic applies to other insurances such as medical, unemployment, etc.

• Employer contribution: Employers also need to contribute more when the base is 14,900 yuan. For instance, for pension insurance, if the employer contribution rate is 16%, the monthly employer contribution is ​
  ×16%=
  yuan when the base is 14,900 yuan, while it is ​
  ×16%=
  yuan when the base is 5,000 yuan.

2. Pension benefits:

• Personal account pension: The higher the social security base, the more funds are accumulated in the personal pension account. When calculating the personal account pension, the amount is calculated as the total amount in the personal account divided by the corresponding number of months. With a base of 14,900 yuan, more money is deposited into the personal account each month, so the accumulated amount is much larger than that with a base of 5,000 yuan. As a result, the personal account pension received during retirement will be higher.

• Basic pension: Although the calculation of basic pension is related to multiple factors such as the average salary of employees in the province, a higher social security base can also have a positive impact on the calculation of the replacement rate, thereby increasing the amount of basic pension. In general, those with a social security base of 14,900 yuan are likely to receive a significantly higher pension than those with a base of 5,000 yuan after retirement.

3. Medical insurance personal account: When the social security base is 14,900 yuan, the amount transferred to the personal medical insurance account is more. Because the transfer amount to the personal medical insurance account is usually calculated as a certain percentage of the social security base. This means that individuals with a higher base can use more funds in the personal medical insurance account for medical treatment, purchase of medicines, etc.

4. Unemployment insurance benefits: Although the specific calculation of unemployment insurance benefits is related to factors such as the length of insurance payment, a higher social security base also has an impact on the amount of unemployment insurance contributions. Generally speaking, the higher the contribution base, the more contributions are made, and in some cases, it may have a certain impact on the amount of unemployment insurance benefits received, but this impact is relatively complex and is also affected by local policies.

In summary, a social security base of 14,900 yuan in Lianyungang, Jiangsu, means higher contributions during the payment period, but also brings the possibility of obtaining more benefits in aspects such as pensions and medical insurance personal accounts in the future compared to a base of 5,000 yuan.