Your first Korean payslip is a moment. You look at the gross salary number, feel briefly proud of yourself, then scroll down to the deductions and go — wait, what? There's a line for 국민연금 (National Pension), another for health insurance, and suddenly you're taking home noticeably less than you expected. Nobody warned you about this. Or maybe they did, but it still didn't feel real until you saw it in black and white.
So here's the honest breakdown of how Korea's National Pension works for foreigners — who has to pay, how much, who can get it back, and who, unfortunately, cannot.
Yes, You Have to Pay. From Day One.
Korea's National Pension scheme is mandatory for virtually all employed foreigners. There's no grace period, no minimum employment threshold — if you're on payroll, you're in. The contribution is 9.5% of your monthly salary total, split equally between you and your employer. That means 4.75% comes out of your pocket every month, and your employer quietly matches that amount.
The monthly salary used for the calculation is capped at KRW 6,370,000 — so if you earn more than that, the pension math still only goes up to that ceiling. For 2026 (January to June specifically), the maximum employee contribution works out to KRW 302,570 per month. That's the most you'll pay, no matter how high your salary goes above the cap.
To put it in real terms: if you earn KRW 4,000,000 a month, you're contributing KRW 190,000 to pension every month. That's not nothing.
The one exception worth knowing about: if you're still enrolled in your home country's social security scheme and your home country has a treaty with Korea, you may be able to apply for an exemption. But more on treaties in a moment.
And Then There's Health Insurance on Top of That
While we're talking about mandatory deductions, National Health Insurance (NHI) is also not optional. As of January 2026, the total NHI rate (including long-term care insurance) is around 8.135%, again split roughly equally — so you're contributing about 4.07% of your salary for health coverage. There is a monthly contribution cap, and employer-provided or home-country insurance may allow an exemption in some cases.
So when you add pension and health insurance together, you're looking at roughly 8.8% of your salary going to mandatory social contributions before taxes even enter the picture. For a lot of expats, this is the part of Korean employment that genuinely surprises them.
Actually, employment insurance (고용보험) may also apply depending on your visa type — D-7, D-8, D-9 visa holders are generally required to participate, for example. The employee rate there is 0.90%, so it's smaller, but it adds up.
The Treaty Lottery: Does Your Country Have a Deal with Korea?
This is where things get genuinely interesting — and genuinely unfair, depending on where you're from.
Korea has social security totalisation agreements with around 43 countries. If your home country is on that list, it changes your situation significantly. You can either claim a lump-sum departure refund of all your contributions when you leave Korea permanently, or in some cases, combine your Korean contribution period with your home country's contribution period to qualify for pension benefits back home.
Countries with agreements include the United States, United Kingdom, Germany, France, Japan, Canada, Australia, China, India, the Philippines, Vietnam, and many European nations including Austria, Belgium, Denmark, Finland, Italy, Netherlands, Norway, Poland, Spain, Sweden, and Switzerland, among others. The full list runs to around 43 countries across the Americas, Europe, Asia-Pacific, and a few others.
If your country is on that list: when you eventually leave Korea, you can go to the NPS (National Pension Service) office, file for the departure refund, and get a lump sum of everything you paid in. It won't include interest in the traditional savings sense, but you do get the principal back. For someone who paid KRW 200,000+ a month for a few years, that's a meaningful chunk of money coming back to you.
No Treaty? Then Your Contributions Stay in Korea.
To be blunt about it: if your home country does not have a social security agreement with Korea, you contribute to the pension every month just like everyone else — but when you leave, you cannot claim a refund. The money stays in Korea.
This hits workers from Indonesia, Thailand, Malaysia, Singapore, Bangladesh, and most African and Middle Eastern countries (Iran, Turkey, and Morocco have partial arrangements, though Morocco's agreement wasn't yet in force as of late 2025). For these workers, the pension deduction is essentially a tax they'll never benefit from directly.
That's a hard reality, and it's worth knowing before you sign a contract. To be fair, the Korean system isn't unique in this — plenty of countries have reciprocity gaps — but it stings when you're watching it come off your paycheck.
If you're in this situation, honestly the best thing you can do is confirm your country's status by calling 1355 (the NPS hotline — English service is available). Don't rely on HR to get this right; verify it yourself.
What If You Stay Long-Term?
Here's the silver lining most people don't talk about. If you stay in Korea and keep contributing for 10 years or more, you don't have to take the departure refund at all. You become eligible for an actual Korean pension when you reach retirement age. For long-term expats who end up building their lives here, this is genuinely useful — it means the pension functions the way it's supposed to, rather than just being a deduction you eventually recover.
The contribution period minimum of 10 years is the threshold for pension benefit eligibility. If you have a totalisation agreement with your home country, the periods can be combined — so if you spent 7 years in Korea and 6 years paying into a home-country scheme, those might add up to meet the threshold, depending on the specific treaty terms.
For treaty-country nationals on shorter stays, the departure refund is typically the more practical route. But it's good to know the long-term option exists.
How Do You Actually Claim the Refund?
When you're ready to leave Korea permanently, the process for claiming the departure lump-sum refund runs through the NPS (국민연금공단). You'll need to visit an NPS branch or contact them before your departure.
One heads-up on this: as of early 2026, the NPS English website has been experiencing significant issues — error pages, broken functionality, that kind of thing. Don't count on being able to do this online in English. The recommended approach is to either call 1355 (the NPS hotline, with English-speaking staff available) or visit an NPS branch in person. They can walk you through the forms and documentation needed.
The 1355 number is genuinely your best resource right now. It's staffed, it handles English calls, and it's the most reliable way to get accurate, up-to-date information on your specific situation — especially for anything involving treaty status or the refund process.
The Bigger Picture on Your Paycheck
So to put the whole picture together: working in Korea as a foreign employee, you're looking at approximately 4.75% for national pension, around 4.07% for national health insurance, and potentially 0.90% for employment insurance depending on your visa. That's close to 10% of your gross salary going to mandatory social contributions, before income tax.
It's not unique to Korea — most countries with robust social safety nets have similar deductions. But it is something that catches people off guard when they first see the payslip. Now you won't be caught off guard.
The key question is always whether your home country has a treaty. If it does, think of the pension deduction as a forced savings account you'll unlock when you leave. If it doesn't, the calculus is more complicated — and frankly, that's a conversation worth having with a tax professional or at least with the 1355 hotline before you sign your next contract.
Contribution rates and caps referenced here are based on 2025/2026 figures. Rates are reviewed periodically — confirm current figures with NPS (1355) or a tax professional before making financial decisions.