In Korea, day one of your 90-day stay is the day after arrival

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By Seungyeop Yeom ·

If you land in Korea on the 90-day visa waiver, your count does not start on the day you land. It starts the next day. Enter on 2026-10-01 and your first countable day is 2026-10-02. That puts your 90th day, and your deadline to leave, on 2026-12-30. Not 2026-12-29.

That one-day gap is the whole article. Count the landing day as day one and you plan your exit a day earlier than you had to. HiKorea, the immigration service’s own portal, states the rule in one line: the day you enter is not counted. Everything below works from that line.

The rule, and the two ways people miscount it

HiKorea’s stay-period page says stay periods are calculated from the date of entry, but the day of entry itself is not included in the count. In practice that means your day one is the day after you land, not the day you land.

Here is what that does to a 90-day stay starting 2026-10-01 (a Thursday), done both ways:

Method Count starts Day 90 lands on
Correct (entry day not counted) 2026-10-02 2026-12-30 (Wed)
Wrong (entry day counted as day 1) 2026-10-01 2026-12-29 (Tue)

Counting the entry day as day one does not make you overstay sooner. It makes you think your deadline is a day earlier than it really is. The mistake costs you a day of your trip, not a day of legal stay. This worked example is built by applying HiKorea’s published rule to a sample entry date; it is not a date that appears on a government page itself, so treat the method as the takeaway, not the specific date.

Visa holders count from the entry date too. HiKorea’s page says a visa holder’s expiry date is the period of stay written on the visa, counted from the date of entry.

Does this apply to you

  • If you entered Korea on the 90-day visa waiver → your day one is the calendar day after you landed, not the landing day.
  • If you’re holding a visa → count the period of stay written on the visa from your entry date.
  • If your calculated 90th day lands on a Saturday → your deadline moves to the day after next, skipping Sunday.
  • If your calculated 90th day lands on a public holiday (not a Saturday) → your deadline moves to the next day only.
  • If you’re not sure whether your nationality still needs K-ETA at all, or is on the current temporary exemption → check the current notice rather than assume last year’s status still holds.

Where people get this wrong

Assuming “90 days” means exactly 90 calendar days including the day you land. It doesn’t. Entry day is excluded from the count, which is why the worked example above lands on day 90 = 2026-12-30 rather than 2026-12-29.

Assuming a run of consecutive public holidays pushes your deadline back by more than a day or two. No official source we found says that. Civil Act Article 161 covers only the single case of the last day of a period falling on a Saturday or holiday, not what happens when several holidays land back to back near your deadline. If you’re near a long holiday stretch, don’t assume extra slack beyond the single-day and Saturday rules above.

Assuming the K-ETA temporary exemption now covers every nationality that normally needs K-ETA. It doesn’t. The exemption running 2026-01-01 to 2026-12-31 applies only to the group of countries that was already on the exemption list before this extension. The notice describes the covered countries only as “countries where the temporary K-ETA exemption is currently in effect,” not as every K-ETA-required nationality. The United States is confirmed to be in that already-exempted group. If your passport is from a country that needs K-ETA but wasn’t already on the exemption list, this extension does not cover you.

Assuming paying the notified fine (통고처분) means criminal prosecution comes next anyway. It’s the reverse. The Immigration Act’s Article 106, as quoted in Korean legal guides, says that if you pay the fine as notified, you are not punished again for the same case. Criminal prosecution under Article 94 (up to 3 years in prison or a 30,000,000 KRW fine) is the track that applies when someone doesn’t pay the notified fine and gets referred for prosecution, not something stacked on top of a paid fine.

What overstaying actually costs

The immigration law’s enforcement rule (Annex 7) sets two separate fine schedules for overstaying, listed under two different row labels: 거목 and 허목. They are not two different agencies or two different offenses in the everyday sense; they’re two lines in the same fine table, tied to two different legal grounds. 거목 is tied to Article 17(1), for staying outside the bounds of your permitted status or period. 허목 is tied to Article 25, for continuing to stay past your period without having gotten an extension approved. No official page we could find specifies which of the two applies to an ordinary visa-free tourist who simply stays past their 90 days without ever filing for an extension, and the two schedules are far apart in amount, so don’t assume either one is “the” number that applies to you:

Overstay length 거목 (Art. 94-7) 허목 (Art. 94-17)
Less than 1 month 1,000,000 KRW 200,000 KRW
1–3 months 1,500,000 KRW 500,000 KRW
3–6 months 2,000,000 KRW 1,000,000 KRW
6 months–1 year 4,000,000 KRW 2,000,000 KRW
1–2 years 7,000,000 KRW 5,000,000 KRW
2–3 years 10,000,000 KRW 10,000,000 KRW
3+ years 20,000,000 KRW 20,000,000 KRW

Beyond the notified fine, the Immigration Act’s Article 94 sets a criminal penalty ceiling of up to 3 years in prison or a 30,000,000 KRW fine for the underlying offenses this schedule attaches to. That’s the maximum the law allows for the offense category, not what a first-time visa-free overstay typically draws. The fine schedule above is what a notified penalty (통고처분) looks like in practice.

There was also a self-departure amnesty round that waived these penalties for people who left voluntarily within a set window: 2025-12-01 through 2026-02-28 (90 days). As of today, that round is over. We could not confirm whether a new round is currently running, so don’t assume one is available without checking.

K-ETA: the fee and the exemption, separately

If your nationality requires K-ETA (Korea’s electronic travel authorization) rather than qualifying for straight visa-free entry, the fee is 10,000 KRW, and once issued it’s valid for 3 years from the issue date, or until your passport expires, whichever comes first.

Separately, a temporary K-ETA exemption is running from 2026-01-01 to 2026-12-31. This is not the same thing as visa-free entry becoming universal: it only covers the set of countries that were already on the exemption list before this extension, the United States among them. It does not add any new countries. If you’re checking whether your passport needs K-ETA at all, check your nationality’s current status rather than assuming the 2026 extension changed who’s covered.

What to do, step by step

  1. Calculate your day 90 using your actual entry date and HiKorea’s rule: entry day excluded, count starts the next calendar day.
  2. Check whether that date lands on a Saturday (deadline moves to the day after next) or a public holiday (deadline moves to the next day).
  3. If your nationality needs K-ETA, confirm your current fee and exemption status before you rely on last year’s information. The exemption group did not expand for the current extension.
  4. If you’ve already gone past your deadline and are planning to leave, HiKorea has a self-departure pre-notification page where you register your planned exit in advance of your flight.

Official pages worth bookmarking:

Where to book

There’s nothing to book here. Counting your stay period is a calculation you do yourself against HiKorea’s published rule, not a service anyone sells. If your nationality needs K-ETA, the 10,000 KRW fee is paid directly through the government’s own K-ETA portal at the point you apply, not through any third-party site, and not through this one.

Sources I checked

  1. Korea Immigration Service K-ETA fee and validity pageKorean source
  2. K-ETA temporary exemption extension noticeKorean source
  3. MOFA Embassy Washington notice confirming US inclusionKorean source
  4. Immigration Act Enforcement Rule, Annex 7 fine schedule (PDF)Korean source
  5. Immigration Act Article 94 penalty provisionKorean source
  6. HiKorea stay-period calculation guidance pageKorean source
  7. Gangnam Labor Law Firm blog post walking through a stay-period worked exampleKorean source
  8. Civil Act Article 161 provisionKorean source