National Pension & Pension Savings Basics (Korea Retirement Pension, Explained)

Last updated: 2026-06-25

The starting point: the 'three-pillar pension'

It is hard to cover nearly 30 years of retirement with a single tool, so experts advise building pension in three layers. Pillar 1 is the state-run National Pension, the foundation of any retirement plan. Pillar 2 is the retirement pension (DB/DC/IRP) your employer contributes, and pillar 3 is the private pension (pension savings and personal IRP) you build yourself. Think of pillar 1 as covering basic living and pillars 2 and 3 as adding comfort on top. This guide focuses on the foundational National Pension and the highly tax-efficient pension savings.

National Pension: the backbone of retirement income

The National Pension is a public pension that Korean residents aged 18 to under 60 join compulsorily. Workplace members pay 9% of their standard monthly income as contributions, split evenly with the employer at 4.5% each. Local members (the self-employed and others) pay the full 9% themselves. The period paid and the income earned determine the old-age pension you later receive.

The most important point is the minimum coverage period. To receive a monthly old-age pension, your coverage (contribution period) must be at least 10 years (120 months). If you do not reach 10 years, you receive a lump-sum refund of your contributions plus interest. So if career breaks or leave interrupted your payments, using catch-up payment (chunap) or voluntary coverage to fill the period is worthwhile.

The age at which payments begin depends on your birth year. People born in or after 1969 receive it from age 65, while earlier generations are phased between 61 and 64. Depending on circumstances, you can take an early old-age pension up to 5 years sooner (about 6% reduction per year) or a deferred pension that pays more (about 7.2% increase per year).

The estimated benefit reflects both your average covered income and the average income of all members (the A value), in a redistributive structure where lower earners get a higher return on what they paid. To gauge the rough scale, estimate it with the National Pension Calculator, and confirm the exact figure via 'My Pension' at the National Pension Service. Remember the calculator result is only an estimate.

Pension savings: retirement and tax savings together

The National Pension alone struggles to replace your pre-retirement income. The nominal replacement rate is about 40% at 40 years of coverage, and the actual average coverage period is shorter, so the felt rate is even lower. The leading way to fill the gap is pension savings — a private pension product from banks, securities firms and insurers that builds retirement money while delivering powerful tax benefits.

The key is the tax credit. Pension savings earn a credit on contributions up to 6 million KRW per year, with the rate split by income. If your gross salary is 55 million KRW or less (total income 45 million or less), the rate is 16.5%; above that it is 13.2%, both including the local income tax. For example, a worker earning 50 million KRW who contributes 6 million KRW can get back 6,000,000 × 16.5% = 990,000 KRW at year-end settlement.

After filling the pension savings limit (6M KRW), if you have room you can add an IRP (individual retirement pension) for a combined credit up to 9M KRW. One caution: withdrawing credited funds early — before age 55 — triggers a 16.5% other-income tax, effectively returning the benefit you received. Conversely, receiving the money as a pension after age 55 incurs only a much lower pension income tax (3.3–5.5%), so treat pension savings as a long-term, 'leave-it-alone' product. To check your own refund, use the Pension Savings Tax Credit Calculator.

How much retirement money will I need

Once you know the types of pension, the next question is 'how much do I need'. The retirement fund is the amount required to cover the 'net expenses' — your monthly living costs minus the pensions you receive each month, such as the National Pension and retirement pension — over your years in retirement. For example, with 2.5 million KRW of monthly expenses and 0.8 million KRW from the National Pension, you must draw 1.7 million KRW each month from your savings. Covering that shortfall over 30 years can require several hundred million KRW.

That said, your saved assets keep earning, so discounting by a real return that reflects inflation makes the actual lump sum needed smaller than the simple total. Estimate the specific figure with the Retirement Fund Calculator using your own expenses, years and pension, and check at what age your assets run out with the Retirement Simulator.

How to start preparing for retirement

• Fill your National Pension coverage period — pass the 10-year minimum and fill gaps with catch-up or voluntary coverage.
• Start with the pension savings tax credit — filling 6M KRW returns up to 990,000 KRW, effectively a 'guaranteed return'.
• Expand to an IRP if you can — claim a credit up to a combined 9M KRW to build extra pension.
• Review regularly — income, prices and markets change, so recompute your estimated benefit and required fund each year.

All calculator results are reference estimates based on simplified assumptions. Actual amounts change with tax-law revisions, income changes and market conditions, so make important decisions using official sources from the National Pension Service and National Tax Service together with professional advice.

Summary

• Prepare retirement with three pillars: pillar 1 National Pension, pillar 2 retirement pension, pillar 3 private pension (pension savings and IRP).
• The National Pension requires at least 10 years to receive a monthly benefit, and people born in or after 1969 receive it from age 65.
• Pension savings earn a 16.5% (gross salary ≤ 55M) or 13.2% tax credit on up to 6M KRW per year.
• Estimate the retirement fund needed and the asset depletion age with the calculators, but treat the results as reference only.

Last updated: 2026-06-25