Pension opt-out in Korean hagwons: what you're offered, what you actually lose, and why most teachers regret it
Some hagwons let new teachers skip National Pension deductions in exchange for higher monthly pay. You keep an extra 4.5% now but lose the employer's matching 4.5%, the lump-sum refund when you leave, and any future claim if you return to Korea long-term.
Park English · 2026-08-29 · 4 min read
A few hagwons — not many, but enough that you'll see the offer — will ask during contract negotiation whether you want to opt out of National Pension. They frame it as a favour. You keep the 4.5% that would have come out of your paycheque each month, your take-home goes up by maybe ₩100,000, and you avoid the paperwork when you leave.
It sounds clean. It is not.
What National Pension actually is
National Pension (국민연금) is Korea's public pension system. If you're on an E-2 visa and earning a salary, you and your employer each contribute 4.5% of your monthly gross. That money goes into the fund. When you leave Korea for good, you file for a lump-sum refund and get back only your half — the employer's half stays in the system. If you worked one year at ₩2.3 million a month, your refund comes to roughly ₩1.2 million, paid three to five months after you apply.
The refund is not optional. You cannot leave it in the system unless you're moving to a country with a totalization agreement and plan to qualify for Korean pension benefits decades from now. For almost everyone, you file the refund form when your visa ends.
What opting out actually means
When a hagwon offers to let you opt out, what they mean is this: they will not enroll you in the system, you will not see the 4.5% deduction each month, and they will not pay their 4.5% either. You are not just skipping your contribution — you are walking away from the employer match.
Run the numbers. On ₩2.3 million gross:
- Your monthly contribution would be ₩103,500.
- The employer's contribution would also be ₩103,500.
- Over twelve months, that's ₩2.48 million going in — half yours, half theirs.
If you opt out, you keep your ₩103,500 each month. You do not keep theirs. At the end of the year, you have saved ₩1.24 million in deductions. But you have lost ₩1.24 million in employer contributions and the ₩1.24 million refund you would have received. The net is not zero — you are down the employer half.
| Scenario | Your deductions (12 months) | Employer contribution (12 months) | Refund when you leave | Net outcome |
|---|---|---|---|---|
| Enrolled | –₩1,240,000 | +₩1,240,000 | +₩1,240,000 | ₩1,240,000 in your pocket later |
| Opted out | ₩0 | ₩0 | ₩0 | ₩0 |
You are trading ₩1.24 million you'd get in a lump sum for ₩1.24 million spread across twelve months. If you desperately need higher monthly cash flow in your first six months, the trade might make sense. For most teachers, it does not.
Why hagwons offer it
Because it cuts their costs. They save 4.5% of your salary for the entire contract. On one teacher, that's over a million won a year they do not have to pay into the system. Some schools are honest about this. Others dress it up as doing you a favour, as though the refund process is so painful you'd rather just skip it.
The refund process is one form. You can file it online or by post. It is not hard.
What you lose if you return to Korea later
This matters less for most people, but: if you ever return to Korea on a long-term visa — marriage, permanent residency, a later work visa — and you re-enter the pension system, any months you opted out of do not count toward your contribution history. That history determines eligibility for Korean old-age pension if you stay in the system for ten years or more.
For a one-year hagwon contract with no plans to return, this is irrelevant. But we have seen teachers come back three years later, settle long-term, and realise they gave up a year of contributions for ₩100,000 a month.
When opting out makes sense
If the hagwon pays you a higher base salary specifically because you are not enrolled — a real increase in gross pay, not just the absence of a deduction — then maybe. Get that in writing. Make sure the contract states the gross figure clearly, and that it is genuinely higher than the standard offer for that role.
If you are returning mid-year from a country where you've already worked and need every won of monthly cash to get set up, and you know for certain you are not staying past one contract, opting out might work. But you are still losing the employer match, which is real money you would have seen again.
For everyone else: enroll, take the deduction, file the refund when you leave. The lump sum is worth more than the marginal monthly increase, and the process is not the nightmare some directors make it out to be.