• Using the KLIPS data, we examine the work status and characteristics of workers who held other jobs at the same time as their main job over the past five years (2018-2022).

• Approximately 2% of all workers appear to have multiple jobs.

• Looking at the personal characteristics of those with multiple jobs, it appears that they are relatively more likely to be older, to have completed high school, and to be heads of household.

- Looking at the characteristics of the main job of those who have multiple jobs, it was found that the industry was agriculture, forestry and fishing, the occupation had a high proportion of production workers, and the proportion of self-employed and full-time employees was high.

- Over the past five years, the proportion of public service workers, office workers, unpaid family workers and part-time workers has shown a clear upward trend.

• In terms of social insurance, the national pension coverage rate of multiple job holders is 37.4% in 2022, which is almost half of the coverage rate of single job holders (64.6%), and the employment insurance coverage rate is also 49.2%, compared with the coverage rate of single job holders (76.3%). It was found to be as low as about two-thirds.

• The average monthly income from the main job of those with multiple jobs was 1.861 million won in 2022, only 68% of the average monthly income of those with single jobs (2.737 million won), but the average total monthly income from all jobs was 2.947 million won, which is higher than those in single jobs.

• As of 2022, the average weekly working hours at the main job of those who have multiple jobs is 30.1 hours, which is about 10 hours shorter than those who have a single job (40.2 hours), but the total working hours of all jobs is 54.6 hours. This shows that multiple workers work 14 hours longer than those working in single jobs.

• Through the analysis results, it can be confirmed that not only the main job, but also the second job of multi-employee workers are located in places where the overall working conditions are poor and unstable. This suggests that there is a need to analyze the labor mobility characteristics of workers in unstable employment and seek appropriate ways to fill in the blind spots in the safety net.