In Huai'an, Jiangsu, a social security base of 20,700 yuan represents a relatively high - end standard within the local social security payment system. Here's a breakdown:

1. Upper - limit benchmark: Generally, the social security payment base has upper and lower limits. The upper limit is often set at 300% of the local average monthly wage of all - caliber urban employed persons in the previous year. If the local average wage in a certain year is such that 300% of it is 20,700 yuan, then this amount becomes the upper - limit standard for social security contributions. For example, if the local average monthly wage of all - caliber urban employed persons in the previous year is 6,900 yuan, 300% of it is ​
   ×=
   yuan.

2. Impact on payment amount:

• For employees: If an employee's monthly wage is 20,700 yuan or higher, the social security contribution is calculated based on this upper - limit base of 20,700 yuan. Take basic pension insurance as an example. If the individual contribution rate is 8%, the individual needs to pay ​
  ×8%=
  yuan per month for pension insurance. The employer also has a corresponding contribution amount based on the base. For instance, if the employer's contribution rate for pension insurance is 16%, the employer needs to pay ​
  ×16%=
  yuan per month.

• For flexible - employed people: If they choose the 20,700 - yuan base to participate in social insurance (such as enterprise employee basic pension insurance), they will bear all the contribution amounts corresponding to this base. For example, for enterprise employee basic pension insurance, if the total contribution rate for flexible - employed people is 20%, they need to pay ​
  ×20%=
  yuan per month.

3. Relationship with social security benefits:

• Pension treatment: In the future, when calculating pensions, a higher payment base like 20,700 yuan usually means that the individual's pension account balance will be relatively high. Because pension calculation is related to factors such as the payment base and payment years. The higher the payment base, the more pensionable salary is accumulated in the individual account, and the higher the pension amount that can be received after retirement.

• Medical insurance and other benefits: In medical insurance, a higher payment base may also mean that the individual's medical insurance account balance is relatively high, which can be used for medical expenses such as seeing a doctor and buying medicine. At the same time, in case of unemployment, work - related injuries, and maternity, the benefits enjoyed may also be related to the payment base, and a higher payment base may bring relatively more benefits.

In conclusion, a social security base of 20,700 yuan in Huai'an is a high - level standard in the local social security system, which has a significant impact on the amount of social security contributions paid by individuals and employers and future social security benefits. It is advisable to consult the local social security department for the most accurate and detailed information regarding local policies.