Quick summary
South Korea’s customs declaration QR code applies only above the US$800 per-person duty-free allowance or US$10,000 in currency, as of 15 October 2026. Declaring goods voluntarily cuts duty by up to 30%, capped at 200,000 won; failing to declare risks a 40% penalty, 60% on a second offence, plus confiscation.
The e-Arrival Card is a separate filing at e-arrivalcard.go.kr that opens 72 hours before arrival, and the two never share a record. The health Q-Code has been optional since July 2023 and is not required in 2026.
South Korea’s customs desk went digital on 13 October 2026. The Korea Customs Service app began letting travelers file a declaration and settle duty in-app, including while in transit at Incheon, instead of queueing for a bank or a customs cashier.
Most arrivals from North America, Europe and Australia and New Zealand will never open it. The customs declaration QR code is for travelers carrying goods above the duty-free allowance or currency above the declaration threshold.
The stakes are money, not just paperwork. A voluntary declaration cuts the duty owed; an undeclared item found on inspection can bring a penalty and confiscation. Two other codes circulate in the same conversation: the e-Arrival Card and the health Q-Code. They serve different purposes.
When Korea’s customs declaration QR applies
The customs checkpoint turns on value, not nationality or cabin. Korea’s duty-free allowance is US$800 per person (15 October 2026). The alcohol, perfume and cigarette limits sit inside that total, not on top of it. Currency is a separate trigger: above US$10,000, a declaration is required whatever is in your suitcase.
The Korea Customs Service treats arrival as a voluntary declaration system. Travelers with goods to declare submit a personal effects declaration; those with nothing to declare use the Nothing to Declare channel. Declaring voluntarily earns a duty reduction of up to 30%, capped at 200,000 won (15 October 2026). Under Korea’s customs rules as of 15 October 2026, an undeclared item found on inspection can draw a 40% penalty, rising to 60% on a second offence, with confiscation on the table.
The discount has a ceiling. It stops growing once the duty owed passes roughly 667,000 won: 200,000 divided by 0.30 no longer covers a full 30%. Below that threshold, the reduction scales with the duty; above it, declaring still removes the penalty, which is worth far more than the discount.
A July 2026 change reported by Newsis relaxes one edge case: same-item duty-free exchanges worth up to US$800 no longer need a declaration on arrival. The replacement can be collected in Korea or mailed on. Goods above the allowance can still be exchanged if declared and taxed on arrival. Korea’s customs declaration for travelers, filed through the Korea Customs Service app or its English-language customs guidance, produces the code officers work from.
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Customs QR vs. e-Arrival Card: two separate filings
The customs declaration and the e-Arrival Card are separate filings. The arrival card’s submission window runs on Korea Standard Time; before it opens, the system will not accept the form.
The two never share a record (confirmed current). Filing one does not satisfy the other: an arrival card does not handle customs, and a customs declaration does not reach immigration.
The arrival card remains the standard requirement for most foreign nationals arriving in 2026, in digital or paper form. Korea’s official e-Arrival Card guide exempts holders of a valid residence card, an approved K-ETA or an e-Group visa; Korean nationals and overseas Koreans on an F-4 visa are not asked for it at all.
Airside transit has its own rule. Travelers who stay inside Incheon’s transit area file no arrival card; those who clear immigration between flights have an e-Arrival Card obligation. If the trip is one-way, Korea’s return-ticket rule is worth reading before you finish the rest of the paperwork.
What happened to the health Q-Code in 2026
The health Q-Code has been optional since 15 July 2023 and is not required in 2026. No COVID-19-related health declaration, vaccination proof or quarantine requirement is in force on arrival, according to 2026 sources.
It remains the third code travelers search for, and the one almost nobody needs. It is neither a customs document nor an immigration document, so its absence from your phone changes nothing at either desk.
It may eventually join the other filings. Kyunghyang Shinmun reported in July 2026 that the government is developing a single QR-based arrival platform, tentatively named K-Arrival One Pass. It was discussed at an interagency meeting on 26 June 2026 involving the justice ministry, the Korea Customs Service and quarantine offices, and is modelled on Japan’s Visit Japan and Singapore’s SG Arrival Card.
How to file before you reach customs
The mobile app handles pre-arrival declarations and, uniquely, in-transit filing at Incheon. The web portal files the same declaration but has no in-app payment.
In the app, duty payments go through credit card or local bank transfer before you reach the queue. Through the portal, payment still means finding a bank or a customs cashier after landing. The app is built for travelers expecting a tax liability or carrying goods above the allowance.
The declaration can be filed before departure. Its confirmation is the record the app generates.
One 2026 change softens the tax hit on goods that come home late. If a declared item is returned, customs can cancel the tax before the payment deadline while it is still unpaid; after payment, a refund route applies instead.
Check your allowance before you pack
The arithmetic belongs at home, not in the arrivals hall. The allowance was last confirmed on 15 October 2026.
- Total your purchases against the US$800 per-person allowance and the 2-liter, 100 ml and 200-cigarette caps before you fly, not after; the alcohol must be worth US$400 or less.
- File the e-Arrival Card inside its 72-hour window at e-arrivalcard.go.kr, and carry the paper arrival card the airline hands out only if you have not filed online.
- Keep the receipt for any declared item you might return, along with the record your app declaration generates; file before departure and keep the confirmation where it opens offline.
- Watch: the proposed K-Arrival One Pass would merge the arrival card, customs and quarantine filings into one QR code if it launches; no launch date has been set.
These steps cost nothing, and the slowest takes minutes from a laptop. The customs figures are still easy to change before landing.
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Questions? Answers.
Do I need a QR code before entering South Korea?
Not always. The customs declaration QR code is only for goods above the US$800 allowance or currency above US$10,000, and the health Q-Code has been optional since July 2023. The e-Arrival Card covers immigration; the customs code covers declarable goods, and one never replaces the other.
What are the Q-Code requirements for entry to Korea in 2026?
None. The Q-Code has been optional since 15 July 2023 and is not required in 2026, and no COVID-19 health declaration, vaccination proof or quarantine rule is in force on arrival.
How do I get a Korea Arrival Card in 2026?
File it through the official e-Arrival Card site, which accepts submissions from 72 hours before arrival on Korea Standard Time. Paper arrival cards are still distributed on flights for travelers who have not filed online.
What is the 3 day rule in Korea?
It describes the e-Arrival Card window: submission opens three days, or 72 hours, before arrival, counted in Korea Standard Time. Filing earlier than that is not possible, and filing later still works because the window stays open through inspection.
Do US citizens need an e-Arrival Card to enter Korea?
The arrival card is required for non-Korean visitors, so US citizens are not automatically exempt. The listed exemptions are a valid residence card, an approved K-ETA or an e-Group visa, and Korean nationals and F-4 visa holders are not asked for one.
