South Korea's D-2 Student Visa and Alien Registration Card, Explained (2026)

Our guides to finding a PhD supervisor in South Korea and finding a funded masters there cover admission and funding mechanics, not what happens once you actually have an offer in hand. This guide is the other half: the D-2 student visa and the Alien Registration Card (ARC) process that follows it, the logistics that decide whether you can legally travel and stay once the admission and funding question is already settled. Most pages covering this topic either conflate it with Korea's separate language-track visa, or quote a financial-proof figure that Korea's own Ministry of Justice changed back in 2023, often without noticing the change happened at all.

D-2 vs. D-4: why the two get confused, and why it matters

D-2 is for full-time, degree-seeking students, a bachelor's, master's, or PhD program at a Korean university. D-4 covers non-degree study, most commonly a Korean-language program run through a university-affiliated language institute. The confusion is understandable: a real share of international students start on D-4 specifically to build Korean proficiency before applying to a degree program, then move to D-2 once admitted. That move depends on meeting the degree program's own admission requirements, it isn't a status upgrade you get automatically for finishing a language course, and the two visas carry different financial-proof thresholds and different part-time work rules. If you're reading guidance about "Korea's student visa" without it specifying which of the two it means, treat that as a sign the page is generalizing rather than describing your actual situation.

What a D-2 application actually requires

Your university issues a Certificate of Admission once you accept your offer, a document meant to confirm both your academic standing and your financial capacity, which you then submit as part of your visa application. Academic documents, degree certificates and transcripts from outside Korea, generally need to be authenticated, either through an apostille or Korean consular legalization, before they're accepted. You'll also need to submit financial evidence meeting the current threshold (more on that below), your passport, a completed application form, and passport-style photos meeting your consulate's specific format. Some guidance we found, though not consistently across university-issued sources, also lists a police clearance or criminal record certificate from your home country, and from any country where you've lived more than six months in the past five years, as a requirement. Because we couldn't confirm this is applied uniformly, treat it as something to check directly with the specific embassy or consulate processing your application rather than assuming it either does or doesn't apply to you.

The financial-proof figure that most guides get wrong

This is the single most common source of outdated information we found researching this post. Korea's Ministry of Justice lowered the D-2 minimum bank balance from a flat $20,000 USD to 20 million KRW for universities in the Seoul metropolitan area, and 16 million KRW for universities outside it, effective July 3, 2023, and switched to assessing the amount in Korean won rather than US dollars. That's a real, documented policy change, not a rumor. What makes this genuinely confusing for applicants is that several university-issued visa guides, some dated well into 2025 and 2026, still list the pre-2023 USD figures alongside, or instead of, the won amounts. We can't tell you with confidence which number your specific consulate or university will actually apply to your case, because the sources that should agree on this don't. Confirm the exact current amount, the currency it's assessed in, and how recent your bank statement needs to be directly with your university's international office and the consulate handling your application, rather than budgeting around any single figure, including the ones in this paragraph.

Can you switch to D-2 after you're already in Korea?

Generally, no, not from every starting visa type. University guidance we reviewed states plainly that students on certain short-term, non-student visa categories cannot convert their status to D-2 while physically in Korea, they would need to leave and apply for the D-2 visa at a Korean embassy or consulate in their home country instead. If you're currently in Korea on something other than an existing student visa and hoping a degree admission lets you transition in place, don't assume that's possible. Confirm the specific conversion rules for your current visa type with an immigration office or your university well before you need the answer, since discovering you need to leave the country at the last minute is a far worse problem than planning around it early.

ARC registration: the 90-day clock starts the moment you land

Under Article 31(1) of Korea's Immigration Act, any foreign national staying longer than 90 days must register for an Alien Registration Card within that window, and because essentially every international degree student is in Korea well past 90 days, this isn't an optional step to get to eventually, university guidance treats registering as soon as possible after arrival as the standard expectation. A detail easy to miss: you generally register at the immigration office with jurisdiction over your school or residence, not whichever office happens to be most convenient. KAIST students, for instance, register at the Daejeon office rather than Seoul Immigration, and registering at the wrong office can delay the process. Typical requirements include a completed application form, your passport, a certificate of enrollment, proof of tuition payment, photos meeting a specific size spec (sources vary slightly on the exact dimensions, so check your university's current list), and a fee commonly cited around 30,000 won. Processing commonly takes about a week, during which the immigration office retains your passport, and most universities run group registration days for incoming students, with HiKorea's online booking system as the fallback if you miss that window, though slots there can fill up, so don't treat it as an unlimited backup option.

A naming wrinkle worth knowing before you search further

"Alien Registration Card" isn't actually the card's current official name. Korea's Ministry of Justice dropped the word "alien" from the card's English title in 2021, renaming it the Residence Card, and gave it a physical redesign in 2023 that added a larger photo and a QR code. In practice, "ARC" is still the term most students, universities, and even some official pages use informally, so it isn't wrong to search for it that way, but knowing the terminology shifted helps explain why you'll find a mix of "ARC" and "Residence Card" across otherwise-current sources, rather than assuming one of them is outdated.

What most guides skip: renewing as a multi-year PhD student

Nearly every piece of ARC guidance online, including most university pages, is written for the moment you arrive, not for what happens three or five years into a PhD. In reality, a multi-year doctoral student files more than one extension of stay over the course of their program, through HiKorea, as their visa and ARC approach expiration, and the timing and paperwork for that aren't fixed for the whole program. At KAIST, for example, you can apply for an extension starting four months before expiration, but students in later semesters (KAIST's own guidance flags the ninth semester or later for the broader graduate population and the fifth semester or later specifically for PhD candidates) must additionally submit a research-student confirmation form and a thesis schedule. At Korea University, students who've moved past coursework into the dissertation-only research stage route their extension through a separate internal petition submitted via the university's own student portal, with university approval required before the request ever reaches HiKorea, a different path from the more straightforward renewal coursework-stage students file. If you're several years into a Korean PhD, don't assume the renewal process that worked the first time is the same one you'll use for your last extension, confirm your specific stage's current requirements with your university's international office well ahead of your ARC's expiration date.

Getting the visa and ARC mechanics right only matters once you actually have a funded place in a Korean lab to go to. GradScoutFunding searches for professors by field and country, confirms they're actively publishing, and drafts a personalized outreach email grounded in a real recent paper of theirs, for you to review and send yourself, it never sends anything automatically. The free tier gives 100 credits with no card required, and paid credit packs are one-time purchases that never expire.

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