Recently, there have been claims on social media that health insurance premiums for self-employed individuals have suddenly surged. This is due to the reflection of the actual business site income and employee insurance premium adjustment amount from the previous year. Self-employed individuals pay health insurance premiums based on their business income, and differences may arise during the annual tax settlement process as actual income and employee insurance premiums are reflected. Therefore, it appears that for some self-employed individuals, health insurance premiums have surged due to an increase in income from the previous year. Since the health insurance premium imposition system improvement plan has not yet been finalized, the recent surge in health insurance premiums is unrelated to policy changes.