South Korea K-ETA Explained: Validity, 90-Day Stays & Exemption

Who needs to read this

The K-ETA is the ESTA-style layer on top of South Korea's visa-waiver entries, and the two clocks it involves, authorization validity and permitted stay, confuse almost everyone. Read this if:

• You're a tourist or business visitor from a visa-waiver country (US, UK, EU, Canada, Australia, and dozens more)
• You're unsure whether the temporary K-ETA waiver covers your passport right now
• You're a frequent visitor reusing one K-ETA across multiple trips
• You're a long-stay planner assuming the three-year validity means three years of stay (it does not)
• You're counting Korea days for the 90-day allowance or for tax residency

How the rule works

South Korea admits visa-waiver nationals for short stays, and the K-ETA (Korea Electronic Travel Authorization) is the pre-boarding screening layer for those entries, operated by the Ministry of Justice under Korea's Immigration Act. The two separate clocks:

• The K-ETA: apply online at k-eta.go.kr at least 72 hours before boarding, pay 10,000 KRW (about USD 7 to 8, plus roughly 3 percent card processing), and receive an authorization valid for three years from approval (or until passport expiry, if sooner), usable for multiple trips. Approvals from before July 3, 2023 carried two-year validity.
• The stay allowance: set per nationality by the visa-waiver arrangement, granted at the border. The official list shows 90 days for the US, UK (British citizens), and most EU countries, 6 months for Canada, 30 days for many others, and a few special formulas (Russia's 60 days per entry within 90 in 180, for example).
• The K-ETA site is explicit that authorization validity is separate from the visa-free stay period: holding a K-ETA never lengthens a stay.
• Temporary waiver: since 2023, Korea has waived the K-ETA requirement for a published list of countries and regions to stimulate tourism; the Ministry of Justice extended the waiver through December 31, 2026. Exempt travelers can still apply voluntarily (an approved K-ETA lets you skip the paper arrival card).

Counting the days

Your permitted stay is granted at entry under the visa-waiver arrangement, arrival day included, and it is per entry, with no published rolling aggregate for standard 90-day nationalities. The mechanics:

• Arrival day counts. A 90-day grant starting 1 March runs to 29 May.
• Per entry, fresh count. Leaving Korea ends the stay; the next admission grants a new one. Exceptions exist where the country formula itself is windowed (see the published list).
• The officer's grant governs. Whatever is recorded at admission is your deadline, not the generic number for your passport.
• One K-ETA, many trips: the authorization does not deplete with use. What accumulates is your entry history, which officers weigh when a passport starts showing wall-to-wall Korea stays.

Resets, extensions, and edge cases

A new entry resets the stay count, but neither the K-ETA nor the waiver changes what happens at the margins. The edge cases:

• Extensions of a visa-free stay are exceptional, handled by Korea Immigration (HiKorea) and reserved for circumstances like medical emergencies, not tourism. Plan around the granted stay.
• The waiver is temporary and list-based. It currently runs to December 31, 2026, and covers only the countries and regions on the Ministry of Justice's list; everyone else still needs an approved K-ETA before boarding.
• Reissued passport means a new K-ETA, as do changes to criminal record or health information; itinerary details can be updated on an existing authorization instead.
• K-ETA is not for work or study. It covers tourism, family visits, events, and non-commercial business activities; employment or long-term study needs a visa, and misrepresenting purpose is a refusal (and future-ban) risk.
• Longer-stay nationalities: Canada's 6-month allowance is the outlier among major passports; most planning should assume 90 days or fewer.
• Jeju and mainland arrivals both fall under the K-ETA regime when it applies to your passport.

Overstays: consequences and enforcement

Overstaying a visa-free stay violates Korea's Immigration Act and is enforced through fines, departure orders, deportation, and entry bans, scaled to the overstay. What to expect:

• Administrative fines that grow with the length of overstay, settled with immigration before or at departure.
• Departure orders and deportation for longer or aggravated overstays, with entry bans that make future K-ETA and visa applications fail screening.
• Detection is biometric and total: foreign entries and exits are recorded with fingerprints and photographs, and airlines transmit passenger data before boarding, so both the overstay and the attempted return are visible to the system.
• The K-ETA screen remembers. Immigration violations are precisely what the authorization process screens for; a clean history is an asset worth protecting.

Staying compliant

Two clocks, one discipline: know which one you are on, and count from the day you land:

• Check both dates on arrival: your K-ETA expiry (three years from approval) and your granted stay for this entry. Only the second one ends your trip.
• Track your Korea days automatically. iReside's South Korea (K-ETA) preset counts each stay from your location against your nationality's allowance and flags the deadline before flights get expensive.
• Reapply triggers: new passport, changed personal circumstances, or an expired authorization; update, rather than reapply, for itinerary changes.
• Watch the waiver's end date. If the exemption lapses after December 31, 2026, the K-ETA requirement returns for currently waived passports; a voluntary K-ETA now removes the risk of arriving at the airport uncovered.
• Apply only at k-eta.go.kr or the official app; lookalike sites charging inflated fees are a documented problem the Ministry of Justice warns about.

Common mistakes

• Reading the three-year validity as a stay permit. The K-ETA is boarding clearance; the stay is the visa-waiver's 90 days (or your nationality's figure), granted per entry.
• Assuming everyone gets 90 days. Allowances range from 30 days to 6 months by nationality, with windowed formulas for some; check the official per-country list.
• Ignoring the waiver's dates. Advice from 2022 ("you must have a K-ETA") and from 2024 ("nobody needs one") are both wrong depending on passport and date; the current waiver runs to the end of 2026 for listed countries only.
• Letting the authorization expire mid-plan or invalidating it with a passport renewal the week before a trip.
• Using third-party K-ETA sites. Overpriced and sometimes fraudulent; the real fee is 10,000 KRW.
• Treating a K-ETA approval as an entry guarantee. Admission and stay are decided at the border; a K-ETA plus a suspicious entry pattern still ends in secondary inspection.