How to calculate the length of service after retirement without paying social security for one year?

The basic old-age insurance and medical insurance at retirement are calculated according to the payment period.

When employees retire, the basic old-age insurance benefits are calculated according to the payment period, and the continuous length of service before the individual pays the basic old-age insurance is regarded as the payment period, which is combined with the actual payment period.

At present, the provisions of basic medical insurance vary from place to place, with great differences. When the continuous service before the implementation of medical insurance is not stipulated as the payment period, it shall be calculated according to the actual payment period.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.