Can You Extend a Tourist Visa in Korea? The Short-Stay Rule Explained

The short answer

Yes, a tourist can apply to extend their stay in Korea — but the circumstances are narrow. Under the Immigration Act, any foreigner who wants to remain beyond their permitted stay must obtain an extension permit from the Minister of Justice before the period ends (Article 25). The grounds that actually get approved for short-term visitors are the unavoidable kind: illness that prevents travel, a cancelled or unavailable flight, or another reason that genuinely makes departure impossible.

What is not a ground: ‘I would like a few more weeks of tourism.’ Extensions for continued sightseeing are not the intended use of the rule, and an application without a real reason stands a poor chance. This article is about the rules as published as of August 2026 — whether a specific application succeeds is the reviewing office’s decision.

Who this applies to

Two groups of travellers arrive without a residence permit:

• Visa-free (B-2) entry — most commonly 90 days, available to many nationalities under Korea’s visa-waiver arrangements
• C-3 short-term visit visa — the visa category for tourism, visiting, or short business trips

Both are treated the same way for extension purposes: they are short-term stays, and the extension path is the short-stay one, not the multi-year path used by people with an alien registration card. If you hold a residence status (E-7, F-6, D-2 and so on) the timing, documents and online options differ — that is covered in our general extension of stay guide.

The 30-day cap

The Immigration Act Enforcement Rules (Article 32) set out the extension the head of an immigration office can grant: it covers a foreigner whose permitted stay is expiring, when they cannot depart because there is no vessel or flight available or for other unavoidable reasons. Crucially, the extension an office can approve on its own is capped — if the extension would exceed 30 days, the Minister of Justice’s approval is required.

So the practical ceiling for a routine short-stay extension is around 30 days, and even that is discretionary. Do not plan around receiving the maximum; plan around the reason being genuine and well documented.

How to apply

Window — you can apply from four months before your permitted stay expires, up to the expiry day itself. Applying after expiry is a different, worse situation: it carries a penalty under the Immigration Act, on top of the underlying problem.

Where — in person at the immigration office with jurisdiction over your address in Korea. The official guidance describes submission by you or an authorised agent to that office; you must be physically inside Korea on the day of application. Being outside Korea changes everything — an extension is not something you file from abroad.

Documents — your passport, proof of your current stay (the entry stamp or visa), your accommodation details, and evidence for the reason: a doctor’s certificate for illness, or a cancelled-flight notice. The office decides what suffices for the specific reason you give, so take what you have and let them tell you if more is needed.

In practice the decision turns on the reason. A genuine medical problem or a cancelled flight with proof is a credible application; a vague request is likely to be refused, and you would then be in an overstay position rather than an extension position.

If you overstay

An overstay is treated as an immigration offence, not a paperwork slip. The possible outcomes range from a fine (summary disposition) to a departure order, a recommendation to leave, or forced deportation for longer or repeated overstays — and the record affects every future application, including visas filed from abroad later.

If you have already stayed past your expiry, the situation gets worse the longer it continues. Reporting to immigration and seeking a voluntary departure is generally a better position than being detected. If an extension was refused, ask what the refusal was based on — some refusals are fixable document issues, while others reflect a substantive problem, and a contested case is worth taking to a qualified professional rather than improvising.

Practical advice

• Check your stay dates the day you land. The expiry is tied to your entry; know it before you need to know it.
• If your reason is a cancelled flight or illness, document it — notices, certificates, and keep them in a form you can present.
• Apply before expiry, at the office for your address, in person. Do not try to file this from abroad or treat a late application as equivalent.
• Do not build your trip on an expected extension. The default assumption should be that you leave when your permitted stay ends; an extension is an exception granted on genuine grounds, not a standard option.

Rules and processing are set by the Ministry of Justice and applied by immigration offices, so confirm the current procedure with HiKorea or your local office before relying on this article.