The Ultimate Application Checklist: What to Prepare Before Applying

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1. Essential Academic & Personal Documents

Every application needs the same core set of documents, regardless of which university you’re applying to:

  • Degree transcript — the official list of every course you took and the grade you got. Not the same thing as your certificate.
  • Degree certificate — the document issued at graduation stating you completed your degree. Universities usually want both, not one or the other.
  • Passport copy — check the expiry date carefully. Aim for at least 5–6 years of remaining validity if possible, so you’re not stuck renewing your passport at a Korean immigration office partway through your degree.
  • Language test score (TOEFL / IELTS / TOPIK) — requirements vary by university and program, so confirm the specific minimum on your target program’s page rather than assuming. As a general benchmark, IELTS Band 6 or higher is commonly expected these days for English-taught programs.

Start collecting these early — transcripts and certificates in particular can take your home university’s registrar a few weeks to issue, especially if you need multiple certified copies.

2. Apostille & Legalization Requirements Explained

This is usually the only part of the process that costs real money out of pocket — but only after you’ve already been accepted, since it’s for the visa stage, not the application stage.

Here’s why it’s needed: any official document you bring out of your home country to use abroad generally has to be notarized or apostilled first, so the receiving country’s government and university can trust it’s genuine. This involves your government, official notary/apostille bodies, and sometimes certified translation services.

In my case, the documents I had notarized and apostilled were:

  • Degree certificate
  • Degree transcript
  • Birth certificate (some universities/visa processes ask for this too)

Requirements differ by country, so confirm the exact list and process with your home country’s foreign affairs ministry or the Korean embassy — don’t assume your country’s process matches someone else’s.

3. Proof of Funding & Recommendation Letters

Proof of funding is what tells the university (and later, the visa office) that you can actually afford to study there. If you’re going the direct-lab-funding route rather than GKS, this usually comes in the form of a confirmation letter from your professor or the graduate school, stating the tuition waiver and/or monthly stipend amount you’ve been offered. Ask for this explicitly and in writing once a professor agrees to take you on — don’t rely on a verbal or email agreement alone, since you’ll need an actual signed/stamped letter for both the university application and later the visa application.

Recommendation letters are usually required from 2–3 academic referees — normally former professors or supervisors who can speak to your research ability, not just your grades. A few tips that make a real difference:

  • Ask referees at least 3–4 weeks before the deadline, not days before — professors write dozens of these and need time.
  • Give each referee a short brief: your target program, why you’re applying, and 2–3 specific things you’d like them to mention (a project you worked on together, a skill they can vouch for).
  • Pick referees who actually know your work well, not just the most senior/famous person you can find. A specific, detailed letter from someone who supervised you directly carries more weight than a generic one from someone who barely knows you.

4. Setting Up Your Application Prep Vault

Once you’re applying to multiple universities and labs at once, keeping documents organized stops being optional. A simple system that works:

  • One cloud folder per university/program, inside a single parent folder for the whole application season (Google Drive or similar). Keep it separate from your general files so you’re not hunting for things.
  • Consistent file naming, e.g. YourName_Transcript.pdf, YourName_CV.pdf, YourName_CoverLetter_GIST.pdf — most portals just show you a generic uploaded filename in their queue, so a clear name saves you from re-opening files to check what’s what.
  • A master checklist document (spreadsheet or plain doc) listing every university, what documents each one specifically requires, and what’s still missing — requirements genuinely differ between universities, so don’t assume one program’s list matches another’s.
  • Keep both PDF and physical/certified copies of anything apostilled or notarized, since some steps later (visa application, ARC registration) will ask for the originals again.

Having this set up before submission day means you’re never scrambling to find or rename a file five minutes before a portal closes.