Korean social security system consists of national pension, national health insurance, unemployment insurance and workplace injury insurance. Except for some special cases, it is mandatory to enroll for those social securities in Korea for the salaried employees. The social security contributions are subject to be withheld when salary income is paid.
For 2018, Korean social security rates are as followings:
| Item | Employee | Employer | Note |
| National pension | 4.50% | 4.50% | Contribution range: Min 12,600KRW & Max 195,300KRW |
| National health insurance | 3.12% | 3.12% | |
| Long-term care insurance | 7.38% | 7.38% | Based on NHI |
| Employment insurance | 0.65% | 0.90% | Rates vary from number of employees |
| Workers’ compensation insurance | 0.7%~3.1% | Rates vary from types of business | |
| Total | 8.50% | 8.75% |
