I. National Health Insurance Premium

Employee’s premium = National Health Insurance Premium(①) + Long-Term Care Insurance Premium(②)
① National Health Insurance Premium = (Total income – non-taxable income) × 2.665%
② Long-Term Care Insurance Premium = ① × 6.55%

1. National Health Insurance Premium
1) Monthly income (monthly average income) = Yearly total income (Total income – non-taxable income) ÷ Number of months served
2) Premium: 5.33% (2.665% for employer; 2.665% for employee)
3) In cases where the employee receives wages from two different companies, the monthly premium shall be calculated based on each company’s income and paid separately.

2. Long-Term Care Insurance Premium
Long-Term Care Insurance Premium = National Health Insurance Premium × 6.55%
(Long-Term Care Insurance Premium)

II. National Pension Premium

Standard monthly income =
Annual total income (Total income – non-taxable income) ÷ Number of months worked
Premium: 9% (4.5% for employer; 4.5% for employee)

III. Employment Insurance Premiums

IV. Industrial Accident Compensation Insurance Premiums

1. General Premiums
A single premium shall be applied within the same workplace. In a workplace that operates more than two businesses at different rates, the business that determines the applicable rate shall be as follows:
1) The business with the larger number of employees
2) If there is an equal number of employees, or the number of employees cannot be determined, the business with the higher total wages: or
3) If it is impossible to determine the principal business by 1) or 2) above, the rate shall be determined according to the business with the higher sales of manufactured products or services.

2. Adjustment of Premiums in Exceptional Cases
Applying the same rate for identical industries is designed to create a balance between employers taking significant steps to avoid occupational accidents and employers who do not. In cases where the insurance benefits paid during the previous three years exceeds 85%, or is less than 75%, of the premiums for the same years, the applicable rate for that industry shall be adjusted up or down by a maximum of 50%. This new rate will be applied at the beginning of the following year.

(1) Application of the Premiums
This special premium rate applies to companies that hire 30 employees or more, excluding the construction and logging industries. However, as of July 30, which is the period when the premiums for individual companies are calculated, if the type of industry to which the premiums apply has changed within the previous three years, this special premium application shall not be reflected.

(2) Method of Calculation
1) Ratio of benefits vs. premiums = total insurance benefits paid during the previous three years / total premiums paid during the previous three years × 100
2) The insurance benefits paid for unavoidable reasons due to occupational accidents by a third party, natural disasters, power outages, etc. shall be excluded in calculation.

(3) Date of Application: within 10 days after determination of the general premium rate.