What is the Korean National Pension?
The Korean National Pension System (NPS) is a mandatory social insurance program that provides income security in old age. All Korean residents aged 18 to 59 are required to participate, and benefits are paid from age 65 for life.
- Contribution rate: 9% of standard monthly income, split 4.5% employee and 4.5% employer.
- Eligibility: Minimum 10 years (120 months) of contributions required.
- Benefit formula: Based on the average income of all members (A value) and your personal career average income (B value).
How to Calculate National Pension Benefits
The basic pension amount is calculated using the formula: Replacement Rate x (A + B) x (1 + 0.05n/12), where A is the average income of all members, B is your career average income, and n is the months of contribution beyond 20 years.
- A value (2025): Approximately 2,989,237 won per month, adjusted annually.
- B value: Your personal average standard monthly income across your entire contribution period.
- Replacement rate: Being gradually reduced from 1.5% to 0.4% (for those born after 1969, by 2028 reform).
- Bonus for long contribution: 5% additional per year beyond 20 years of contribution.
Tips for Maximizing Your Pension
- Voluntary enrollment (임의가입): Homemakers, students, and others not subject to mandatory enrollment can voluntarily join to build pension credits.
- Retroactive payment (추납): If you had exempt periods (e.g., unemployment, childrearing), you can make retroactive contributions to increase your benefit.
- Deferred pension (연기연금): Delaying pension receipt by up to 5 years (until age 70) increases your monthly benefit by 7.2% per year.
- Credit system: Military service (6 months) and childbirth (up to 50 months for 2nd+ children) add credited contribution periods.