“Duty free” and “tax refund” get used as if they’re the same thing. They aren’t, and the difference decides which paperwork you need. A 보세판매장 — a bonded sales shop, what “duty free” actually means — sells goods that never carry the tax to begin with, under the customs authority’s own law. An 외국인관광객 면세판매장, an ordinary shop the tax office has designated to serve visitors, charges you VAT and individual consumption tax at the till like it would a resident, then lets you claim that tax back before you leave. Korean names the two 사전면세 and 사후면세 — exempted beforehand, refunded afterward — a distinction English drops entirely. Even Korea Customs Service’s own English page calls the refund shops “duty-free shops,” which is the wrong name for what it’s describing. This guide covers the second scheme: reclaiming tax you already paid, as a departing visitor leaving Korea.
What decides your route from here isn’t preference. It’s arithmetic — how much you spent, in one transaction and across the whole trip.
Who actually qualifies
The refund decree itself sets no length-of-stay test; it defers entirely to Korea’s foreign-exchange law. A foreign national counts as a resident — and so falls outside the refund — after doing business in Korea, or after staying 6 months or more; leaving and spending 3 months or more abroad restores non-resident status. An overseas Korean national is treated as a resident once back in Korea 3 months or more, and returns to non-resident status only after taking up business abroad, an international-organisation post abroad, or 2 years or more abroad — a temporary return of up to 3 months still counts toward that clock.
Korea’s tourism board publishes a fourth condition for overseas Koreans, in English: holding permanent residency in another country. The foreign-exchange law the refund decree actually defers to doesn’t contain that condition. Go by the three limbs above — business abroad, an international-organisation post abroad, or two years abroad — not the fourth.
The four amounts that decide your route
Four thresholds, all set by decree, do the actual routing.
Nothing qualifies below ₩15,000 in a single transaction, including the tax. Spend at least that in one go at a designated shop, and get the proper 물품판매확인서 — a plain receipt does not qualify — and you’re in the scheme.
Under ₩1,000,000 per transaction, and under ₩5,000,000 cumulative since you entered Korea, the till can refund you immediately, with nothing to collect at the airport. Cross either wall and you’re pushed onto a route that pays out downtown or after departure instead. Watch the second wall’s arithmetic: five purchases at ₩999,999 total ₩4,999,995, leaving only ₩5 of headroom under the trip cap — nowhere near the ₩15,000 floor a sixth purchase would need. Five near-maximum transactions quietly close the at-till route for the rest of your trip. (The decree doesn’t say outright whether that running total is checked before or after the purchase being rung up counts toward it — treat the tighter reading as the one to plan around.)
The wall also bites unevenly on the money itself. On one designated operator’s published band table, a ₩999,999 purchase returns ₩68,000; a ₩1,000,000 purchase — one won more, and now over the immediate-refund wall — returns ₩75,000. Spending ₩1 more nets ₩7,000 more, because the payout is a flat amount per price band rather than a straight percentage: identical inside a band, and it steps up sharply at the edge.
Up to ₩6,000,000 per transaction, a downtown or pre-departure operator can pay you before you leave, against a security hold — see below. Past that ceiling, no operator can pay before departure; the money comes only after customs confirms the goods have left, through the operator or through the shop’s own remittance.
One coincidence worth naming without reading into it: ₩6,000,000 is also where that same operator’s payout table stops using a flat band and starts paying 90% of the VAT instead. Neither the decree nor the operator connects the two — one is a legal ceiling on how a refund can be paid; the other is where an unrelated pricing table changes shape.
Buying something expensive: a second tax can apply
Ordinary purchases carry VAT — Korea’s rate is 10% — and nothing else. But 개별소비세, individual consumption tax, reaches a specific enumerated list of goods, and for part of that list a 기준가격 shields the ordinary price entirely. Jewellery, precious metals and high-grade furs carry no individual consumption tax on the first ₩5,000,000 of an item’s price; high-grade watches, bags and carpets carry none on the first ₩2,000,000. Only the amount above that per-item threshold is taxed, at 20% — not the whole price. A handbag or watch priced at or under ₩2,000,000 bears no individual consumption tax at all. (One branch of the decree’s list — a separate, quantity-taxed category — wasn’t reachable in this research, so nothing here should be read as the complete list of what the tax touches.)
At the airport: one rule two publishers agree on
Incheon Airport’s own page and Korea Customs Service’s regional customs office publish opposite step orders for the same procedure: the airport has you check in first, then find the kiosk in the departure hall; the customs office’s Korean-language page has you visit the kiosk first, then check in — its English page states no order at all. Neither publisher corrects to match the other, and both are current. What they do agree on, in the customs office’s own instruction, printed in red: the goods go to customs before the bag is checked. Whichever order you end up following, don’t let go of the bag carrying your refund goods until customs has confirmed them — that’s the rule actually deciding whether you keep the refund, not the order of the earlier steps.
Whether an immediate refund taken at the till still requires that same customs stop is genuinely unsettled. One operator’s own page says yes, a purchaser still obtains export confirmation from customs. That same operator’s other page describes departure with no customs step at all. The second operator states plainly that no customs confirmation is needed, because export approval already happens electronically at the moment of payment. The decree conditions the relief on confirmed export and requires the shop to notify customs, but doesn’t settle whether you personally have to present the goods at the airport. Until that’s settled somewhere, allow the time and go to customs anyway — the safer side of this disagreement costs you nothing if it turns out unnecessary, and the other side can cost you the refund.
All of this is Incheon-specific. Gimpo and Gimhae publish an eight-step departure sequence with a generic customs panel and no refund kiosk, counter or hour of their own — nothing here describes what happens if you’re flying out of either.
At Incheon, the staffed counters run 07:00–22:00 at Terminal 1 and 07:00–21:30 at Terminal 2 — Terminal 2 closes half an hour earlier — with automated machines at both running around the clock. No source publishes how long the refund process itself takes, at either terminal; treat those counter hours as your real deadline, not as a queue estimate nobody states.
Taking the money before you’ve left
A downtown or pre-departure payout puts cash in your hand before export is confirmed, against security. One designated operator prices that security at 110% of the refund it’s paying you — not of the tax itself, which is the larger figure — so the charge stays inside the decree’s own limit, which caps security at the tax amount being paid out, not at the refund. If the goods aren’t confirmed exported at the airport, that operator cancels the refund or charges the security, and the decree separately withdraws the immediate-refund route for anything else that visitor buys afterwards, since the underlying export deadline has now been missed. Miss the customs step here and the cost compounds.
That same operator’s own Korean pages don’t agree with each other on this route’s minimum purchase or its deadline — one gives a 25-day clock measured from the refund date, another a 3-month clock measured from the purchase date, with different bands attached to each, and neither page carries a date showing which is current. Go by the paperwork the shop actually gives you rather than by whichever page you found first. And note the whole downtown route here is documented for two of at least five operators active in Korea — a receipt carrying a different company’s mark isn’t covered by any figure in this guide.
Before you fly
Confirm the purchase clears ₩15,000 in one transaction and that you hold the 물품판매확인서, not a plain receipt. Add up your immediate-refund purchases as you go, and stop relying on the till once you’re near ₩1,000,000 in a single sale or ₩5,000,000 across the trip. At the airport, find customs before you let go of your bag, whichever order the signage in front of you implies. And if you took money downtown before departure, treat the export-confirmation step as mandatory, not optional — it’s the one thing standing between the refund you already received and keeping it.
If you’re still deciding how you’re paying for any of this in the first place, see Paying in Korea. And if Incheon’s own terminal layout is still unfamiliar, Incheon Airport to Seoul covers the T1/T2 split from the arrival side.