Leaving Korea: Tax, Pension and What You Are Owed

Departure is an immigration date. It is not a tax date, a pension date or a payment date, and treating it as all four is how people leave money in Korea.

Some of what is owed to you arrives weeks after you fly. Some of what you owe is due the day before.

The real end date is when the last won arrives. That is usually after you have left.

There is no single “tax clearance” for leaving

A recurring assumption is that every departing foreign worker collects some certificate from the tax office before they can fly. That is not how this works.

What actually exists are four separate procedures, and which apply to you depends on your income:

So the first question is not “what do I need to get stamped”. It is whether you have a filing obligation at all:

Employment income only        →  the employer settles it
Business, rental, multiple    →  your own return, and a hard deadline
employments, other global
income

The employer settles employment income with your final pay

Leave mid-year and your employer normally runs a mid-year settlement against that year’s employment income when it pays you for the last time. Over-withheld tax is refunded; under-withheld tax comes out of the final payment.

Before you leave, secure three documents:

If annual deductions — medical, donations, card spending — were not fully reflected at that point, a further refund can be pursued through a return or a claim for correction later. Which is a reason to keep the paperwork rather than a reason to delay leaving. How those deductions work is in year-end settlement for foreign employees.

If you must file, it is due the day before you fly

This catches people with business income, rental income, several employments or other global income. It does not need applying mechanically to someone whose single employment was settled by their employer — and misapplying it in that direction wastes a week of everyone’s time.

Establish which group you are in first. If you are unsure, that uncertainty itself is a reason to ask before booking the flight rather than after.

The pension refund is not “you paid in, you get it back”

Contributing does not create an entitlement to a lump-sum refund. Three routes exist, and two of them turn on nationality:

On the current list, 24 countries qualify by agreement — the United States, Canada, Germany, Australia, France, India, Türkiye and the Philippines among them — and 26 by reciprocity, including Thailand, Malaysia, Indonesia and Kazakhstan.

Applying before you go

Where you qualify, apply at an NPS branch before departure. Typically:

• passport
• alien registration card
• a flight ticket showing the departure date
• the claim form
• bank account details

For an overseas transfer you need the receiving bank’s name, the account number and the SWIFT or BIC code, accurately. Additional documents vary by country and by claim route, so confirm at the branch.

Airport cash exists, and it is not applied for at the airport

The pension service will pay a qualifying refund in foreign currency cash at Incheon on the day you fly. It is genuinely useful and it is widely misunderstood.

apply at an NPS branch, within a month of departure
  → select airport payment
  → former employer files loss of coverage by the day before you fly
  → collect at the airport counter

“My refund” is three different refunds

Money owed to a departing employee comes from three payers on three timetables.

So nothing showing in Hometax does not mean your employer owes you nothing. Before leaving, check both the withholding receipt from your company and your filing and refund record with the tax office. They are different systems and neither knows about the other.

Close the bank account last

The instinct to tidy up before flying is the wrong one here.

Still to arrive, often after departure:

• final salary
• severance pay
• tax refunds
• the pension refund
• your rental deposit

The tax office lets you register an account to receive refunds, and the taxpayer support centre at Incheon handles account-registration business. Where keeping a Korean account is genuinely impossible, ask each payer separately whether it can remit overseas — the pension service can, and that is not the same procedure as a tax refund.

How a deposit comes back, and why it often lands after you have gone, is in protecting a rental deposit in Korea.

If anything is still open, appoint a tax agent

The Framework Act on National Taxes requires a taxpayer who has no domicile or residence in Korea, or who is relocating theirs abroad, to appoint a tax agent to handle national tax matters.

This is not a forwarding address. A tax agent can file returns, make applications and claims, receive documents from the tax office, pay tax and receive refunds on your behalf.

Which makes it the practical answer for anyone leaving with a return still to file, a claim for correction outstanding, a refund not yet paid, or Korean property or business filings continuing.

Appointing one before you go is far easier than arranging it from abroad once the tax office has already written to an address you no longer live at.

A timetable that works

If you were on the 19% flat rate, check its application state and period at the final settlement as well — the 19% flat rate: when it beats the brackets.

The date that actually matters

resignation
  → employer's mid-year settlement
  → is a pre-departure return required?
  → pension refund application
  → national and local refunds identified
  → tax agent appointed if anything remains
  → receiving account kept open
  → departure
  → payments confirmed

Immigration is finished with you at the gate. Tax and pension are not.

The real leaving settlement date is the day the last of your salary, severance, refunds and pension has arrived and no filing obligation remains — and for most people that is somewhere between a month and a year after the flight.

What else has to be unwound before you go, from the car to the lease, is in selling or exporting your car when leaving Korea.