Korea’s National Pension for foreigners: contributions, refunds and totalization agreements

This guide is for foreign nationals living and working in South Korea. The short answer: if you are employed here and aged 18–59, you almost certainly pay into the National Pension (국민연금, gungmin yeoneum — Korea’s state-run, mandatory pension plan), and you may be able to reclaim contributions as a lump sum when you leave.

How it works

Korea’s National Pension System (NPS) was established in 1988. It covers almost everyone who earns income in Korea, including foreigners. Coverage is automatic — there is no opt-in form to complete.

There are two categories of membership. If you work for a company that is already enrolled with the NPS, you become a workplace subscriber (사업장가입자, saeopjang ga-ipja). Self-employed foreigners and those not covered through an employer join as local subscribers (지역가입자, jiyeok ga-ipja).

The following groups are exempt from mandatory enrolment:

• International students (D-2 visa) and language trainees (D-4 visa)
• Diplomats and their immediate household
• Nationals of countries whose pension systems do not mandatorily cover Korean citizens living there (reciprocity principle)
• Foreign employees covered by a social security agreement who remain on their home-country scheme and submit a certificate of home-country coverage

Even if you are exempt from mandatory enrolment, you may choose to enrol voluntarily if you meet the age and residency conditions.

Why Korea does it this way

Korea launched the NPS in 1988, starting with large companies, and extended it to all workplaces by 1992 and to the self-employed by 1999. The model follows the same pay-as-you-go logic used in most OECD countries: today’s workers fund today’s retirees, and the fund invests the surplus to cover future shortfalls.

Korea extended NPS coverage to foreign workers in 1995. The rationale was straightforward: foreign workers use the same roads, hospitals, and public services as Korean nationals, so applying the same contribution rules creates parity and avoids incentivising employers to prefer foreigners for cost reasons alone.

For decades the contribution rate sat at 9% — unchanged since 1998. A long-term actuarial review concluded the fund would be depleted by the 2050s without reform. The National Assembly passed a pension reform law, and the first rate increase in 28 years took effect on 1 January 2026.

The numbers that matter

Note: SMI floors and ceilings are revised every July. Always confirm the current figures at nps.or.kr or by calling the NPS international line on ☎1355.

What it means for you

Contribution example

Suppose your monthly salary is ₩3,000,000. Your employer deducts 4.75% — ₩142,500 — from your pay. Your employer adds a matching ₩142,500 directly to the NPS. Your total contribution is ₩285,000 per month, but only ₩142,500 reduces your take-home pay.

The lump-sum refund (반환일시금, banhwan ilsigeum)

Most foreign workers leave Korea before accumulating 10 years of contributions. Rather than lose those payments, eligible nationals can claim a lump-sum refund (반환일시금) after departing Korea permanently. The refund returns all contributions — both the employee and employer halves — plus interest, calculated using the three-year fixed-deposit interest rate applied across the insured months. You effectively receive back roughly double the amount deducted from your salary, plus interest.

Eligibility for the lump-sum refund depends on your nationality and visa history:

• E-8, E-9, or H-2 visa holders: eligible regardless of nationality, once you have departed Korea.
• Nationals of countries with a social security agreement covering lump-sum refunds: eligible. This list currently includes the United States, Canada, Germany, France, Australia, India, Brazil, the Philippines, and others — verify the current list at nps.or.kr, as agreements evolve.
• Nationals of countries with a reciprocity arrangement: eligible. Examples include Thailand, Indonesia, Malaysia, Cambodia, and others.
• Other nationals: in principle, the lump-sum refund is not available. Check with the NPS directly, as treaty coverage changes.

To apply: submit the lump-sum refund application form at any NPS branch before leaving, or apply overseas through a Korean embassy or online via the NPS global website. You have five years from the date of eligibility to file.

Totalization agreements

A totalization agreement (사회보장협정, sahoe bojang hyeopjeong — a bilateral treaty that links two countries’ pension systems) solves a specific problem: a worker who spends eight years in Korea and seven years in Germany might not qualify for a full pension in either country on their own. Under the Korea–Germany agreement, those periods can be combined to meet the 10-year minimum in each country.

Korea has such agreements in force with more than 40 countries, including the United States, United Kingdom, Japan, China, Canada, Australia, France, Germany, India, Vietnam, and the Philippines, among others. If your home country is on the list and you expect to draw a pension eventually, ask your home-country pension authority and the NPS whether combining periods makes sense for your situation. Note that not every agreement covers lump-sum refunds — the two provisions (totalization and refund) are negotiated separately.

Concrete steps

• Check your payslip: pension deductions should appear as 국민연금 each month.
• Confirm your country’s agreement status at nps.or.kr (English version available) or call ☎1355.
• Before leaving Korea, visit an NPS branch or apply online to claim your lump-sum refund. Bring your passport, alien registration card (외국인등록증, oegugin deungnokjeung — the ID card issued to long-term foreign residents), and bank account details for the international transfer.
• If you plan to stay long-term, keep track of your contribution months. Ten years of contributions unlocks a monthly pension at retirement age — a meaningful benefit worth preserving.

FAQ

My employer is not deducting pension contributions. Is that legal?

Only if you are genuinely exempt — for example, you hold a student visa, your country’s agreement keeps you on your home scheme, or you are self-employed and have not yet enrolled. If none of those apply, your employer may be non-compliant. You can report the issue to the NPS (☎1355); unpaid contributions are recoverable, and the employer bears the penalty.

I contributed for less than one month. Can I still get a refund?

Yes. Even a single month of contributions can be refunded as a lump sum, provided your nationality qualifies. The amount will be small — one month of employee and employer contributions plus a modest interest amount — but the right exists. Apply using the standard lump-sum refund form after you have departed Korea.

Will the refund be taxed?

Korea withholds a small amount under the pension income withholding rules when paying lump-sum refunds to departing foreigners. The exact rate depends on the amount and any applicable tax treaty between Korea and your home country. Check with the National Tax Service (국세청, Guksecheong — Korea’s tax authority) or a tax professional for your specific situation before you apply, as you may need to file for a partial refund of the withholding in your home country.

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