First 30 Days in Korea Checklist for Foreigners: Everything You Must Do in 2026

This guide is based on firsthand expat experience and official Korean government sources including the Korea Immigration Service, NHIS, and the Financial Supervisory Commission. Last updated: June 2026

Your first 30 days in Korea are the most bureaucratically demanding — and the most important. The first 30 days in Korea checklist for foreigners starts with one non-negotiable task: booking your Alien Registration Card (ARC) appointment. In this guide, you’ll learn exactly what to do, in what order, and why each step unlocks the next — from getting a SIM card on Day 1 to enrolling in health insurance by the end of Week 4.

Why the Order of These Steps Matters
What to Do on Day 1: Arrival Essentials
How Do You Apply for Your ARC in Korea?
How to Get a Korean Phone Number as a Foreigner
How to Open a Bank Account in Korea as a Foreigner
How Do You Register for National Health Insurance (NHIS)?
What Other Registrations Do You Need in Your First 30 Days?
Frequently Asked Questions
Final Thoughts

Why the Order of These Steps Matters

Korea’s administrative system runs on a dependency chain. You cannot open a bank account without an ARC. You cannot get a postpaid phone plan without a bank account. And you cannot enroll in health insurance without your ARC number. Get the order wrong and you’ll waste weeks going back and forth between offices.

The Master Dependency Chain

Step	Requires	Unlocks
Tourist/prepaid SIM	Passport only	ARC appointment booking, basic communication
ARC (Residence Card)	Visa + passport + address	Bank account, postpaid SIM, health insurance
Korean bank account	ARC + Korean phone number	Salary, rent payments, postpaid phone plan
Postpaid phone plan	ARC + bank account	PASS app, online verification, Korean fintech
NHIS health insurance	ARC + 6 months residency (or employer)	Affordable medical care, visa renewal eligibility

💡 Pro Tip: Print this dependency chain and stick it somewhere visible. Every step you delay at the top creates a cascade of delays below it.

⚠️ Important: Korean regulations change regularly. Always confirm the latest requirements at HiKorea (hikorea.go.kr) or by calling the Immigration Contact Center at 1345 before proceeding.

What to Do on Day 1: Arrival Essentials

The moment you land at Incheon (or Gimpo), your 90-day ARC clock starts ticking. Use your first 24 hours wisely.

Step-by-Step: Your First 24 Hours

Get a prepaid SIM at the airport. KT, SKT, and LG U+ all have booths in the arrivals hall at both Terminal 1 and Terminal 2. Prepaid tourist SIMs cost roughly ₩55,000–₩60,000 for 30 days and only require your passport. This gives you a Korean 010 number immediately — which you’ll need to book your ARC appointment online.
Confirm your address. You need a registered Korean address to apply for your ARC. If your employer or school arranged housing, get the address in Korean immediately. If you’re in a goshiwon or short-term rental, make sure you have the full address including 동 (building) and 호 (unit) number.
Book your ARC appointment on HiKorea. Go to hikorea.go.kr and book the earliest available slot at the immigration office covering your residential area. Slots fill up fast, especially in Seoul. Book before you unpack.
Set up a global debit card bridge. While you wait for your ARC (2–4 weeks), Wise and Revolut work at most Korean card terminals. Download the app and fund it before you arrive.
Download KakaoTalk. This is Korea’s primary messaging app. It works on any foreign number, so set it up immediately. Your landlord, employer, and new Korean friends will all use it.

💡 Pro Tip: Choose KT for your airport SIM if you plan to stay long-term. KT has the most foreigner-friendly onboarding when you later upgrade to a postpaid plan, and English support at their stores is the most reliable among the Big 3.

How Do You Apply for Your ARC in Korea?

The ARC — officially renamed the Residence Card (RC) in 2024, though most people still say ARC — is your legal ID in Korea. Without it, you’re operating on passport-only status, which blocks banking, phone contracts, and healthcare.

A common mistake foreigners make is waiting until week 6 or 7 to apply. Don’t. Processing takes 2–3 weeks, and you must apply within 90 days of entry or face fines of up to ₩10,000,000.

Who Needs an ARC?

Any foreigner staying in Korea for 91 days or more must apply. This includes work visa holders (E-series), students (D-series), and family visa holders (F-series). Tourist visa (C-3) holders under 90 days are exempt.

Step-by-Step: ARC Application

Book your appointment. Visit hikorea.go.kr and schedule a visit at your local immigration office (출입국·외국인청). You must visit the office covering your residential address.
Prepare your documents. Bring: passport, passport-size photos (3.5cm × 4.5cm, white background, at least 2 copies), your visa grant notice or employment/enrollment certificate, proof of address (lease contract or official letter), and the application fee — ₩35,000 as of January 2025 (payable by government revenue stamp, not cash).
Attend your appointment. The in-office process takes 15–30 minutes. An officer will take your fingerprints and photo.
Wait for processing. Expect 2–3 weeks. You can track status by calling 1345 or online through HiKorea.
Pick up your card. Return to the same immigration office with your passport and receipt, or pay an extra ₩3,000 for mail delivery.

⚠️ Important: Do not leave Korea while your ARC is being processed unless you obtain a separate Re-Entry Permit. Leaving may invalidate your application. Confirm current re-entry rules at immigration.go.kr before any travel.

Complete ARC Application Guide for Foreigners in Korea (2026)

How to Get a Korean Phone Number as a Foreigner

A Korean phone number isn’t just for calls. It’s the backbone of identity verification in Korea — your bank OTP, the PASS app, government notifications, and most Korean fintech apps all require a Korean 010 number registered in your name.

Stage 1 (Day 1, No ARC): Prepaid SIM at the Airport

Buy a prepaid tourist SIM at Incheon Airport with your passport only. This gives you a real Korean 010 number immediately. Cost: ₩55,000–₩60,000 for 30 days. Use this number to book your ARC appointment and stay connected while you wait for your card.

Stage 2 (After ARC, Weeks 2–4): Upgrade to a Postpaid Plan

Once your ARC arrives, visit a carrier store (KT, SKT, or LG U+) and upgrade to a postpaid monthly plan (후불요금제). You’ll need your ARC and a Korean bank account. This activates full PASS app verification and unlocks Korean banking apps. Monthly plans start around ₩30,000–₩70,000 depending on data allowance.

💡 Pro Tip: After 3–6 months, switch to an MVNO (알뜰폰) — budget carriers that run on the same networks. Plans start at ₩9,900/month. Check mvnohub.kr (the government MVNO comparison site) for current plans. Your 010 number transfers via number portability (번호이동).

⚠️ Important: Korean law requires all SIM cards to be registered under your exact legal name (명의). Your name on the carrier’s system must match your ARC exactly — or you’ll fail phone verification at the bank. Always confirm with the official source before proceeding.

How to Open a Bank Account in Korea as a Foreigner

Without a Korean bank account, you can’t receive a salary, pay rent by transfer, or set up utilities. Most foreigners open their first account at one of the Big 4 banks: KB Kookmin, KEB Hana, Shinhan, or Woori.

What You Need

Document	Notes
ARC (Residence Card)	Mandatory at most banks. Some branches may accept a passport only, but services will be restricted.
Passport	Always bring even if you have your ARC.
Korean phone number	Required for SMS OTP verification during setup.
Korean address	Bring it written in Korean to avoid back-and-forth.
Account purpose statement	Be ready to say “salary,” “living expenses,” or “tuition” — banks ask this due to AML rules.

Step-by-Step: Opening Your Account

Choose a foreigner-friendly branch. Branches near universities, immigration offices, or business districts have more experience with foreign customers. Avoid small residential branches if possible.
Go in person during business hours. Most banks are open Mon–Fri, 9:00 AM–4:00 PM. Some branches are open Saturday mornings.
Tell them the purpose of your account clearly. “Salary” or “living expenses” reduces the chance of getting a heavily restricted account with low transfer limits.
Set up mobile banking at the counter. Ask staff to help you activate the bank’s app on the spot. This saves significant frustration later.
Expect a restricted account at first. Low daily transfer limits are normal for new foreign customers. Providing employment or enrollment documents can lift the restriction within days.

When many expats first arrive in Korea, they assume any branch will handle their account efficiently — then they show up to a small neighborhood branch and get sent away because the staff have never processed a foreign ARC before. Save yourself this detour by calling ahead.

The Korean government allows the Mobile ARC (issued since January 2025) to be used for bank account opening at six major banks as of March 2025. Confirm current acceptance at fsc.go.kr (Financial Services Commission) before relying on this.

For those who don’t yet have an ARC, Toss Bank is the one major internet bank that allows account opening with just an ARC online — no in-branch visit required.

Best Korean Banks for Foreigners: KEB Hana vs Shinhan vs Woori (2026 Comparison)

How Do You Register for National Health Insurance (NHIS)?

Korea’s National Health Insurance Service (건강보험공단, NHIS) is one of the most affordable healthcare systems in the world. A typical clinic visit costs ₩5,000–₩15,000 out of pocket. But you only access those rates once you’re enrolled.

Who Enrolls and When?

Your enrollment path depends on your situation:

Situation	Enrollment Type	When
Employed by a Korean company	Workplace subscriber (직장가입자)	Day 1 of employment — employer handles it
Student, freelancer, or self-employed	Local subscriber (지역가입자)	Automatically after 6 months of residency
F-2, F-5, F-6 visa holders	Local subscriber (auto)	Upon ARC issuance

How Much Will You Pay?

If you’re employed, your premium is 7.19% of monthly salary (2026 rate) — split evenly with your employer. At a ₩3,000,000 salary, you pay roughly ₩107,850 per month. If you’re a local (regional) subscriber, the minimum monthly premium for foreign residents in 2026 is roughly ₩88,000–₩160,000. Budget the higher end if you are self-employed or a freelancer.

⚠️ Important: Unpaid NHIS premiums will result in your visa extension being denied. Immigration directly checks your payment history. Clear any outstanding balance before your next extension appointment. Confirm the current premium rates at nhis.or.kr/english.

💡 Pro Tip: Call the NHIS multilingual helpline at 033-811-2000 (English, Chinese, Vietnamese) for in-language support. In Seoul, there are in-person Centers for Foreign Residents in Guro-gu, and also in Ansan and Suwon.

The 6-month clock for local subscriber enrollment starts from your entry date — not your ARC registration date. Mark the exact 6-month anniversary of your arrival and expect a bill soon after.

You can start your NHIS enrollment online or confirm your status in person. For most employed workers, enrollment is automatic from your first paycheck.

Check NHIS Enrollment Status (English)

National Health Insurance Korea: Complete Guide for Foreigners (2026)

What Other Registrations Do You Need in Your First 30 Days?

Beyond the Big 4 (ARC, SIM, bank, health insurance), several smaller registrations will make your daily life significantly easier. Don’t let them slip to month 2.

Move-In Report (전입신고) at Your Local Community Center (주민센터)

Within 14 days of moving into your new home, visit your nearest community center (주민센터, Dong Office) and file a move-in report. This registers your official address in Korea’s government system — which is then used for everything from mail delivery to NHIS billing. Bring your ARC, passport, and lease contract. The process takes about 15 minutes and is free.

⚠️ Important: You must also update your ARC address within 14 days of any move. Failure to do so can result in fines. Confirm at hikorea.go.kr or your immigration office.

Kakao Map, Naver Map, and T-money Card

These aren’t bureaucratic requirements, but they’re essential for daily life. Naver Map is more accurate than Google Maps in Korea — download it immediately. A T-money card (available at any convenience store for ₩3,000) lets you tap on and off buses and subways at a discounted fare. Load it at any convenience store or subway fare machine.

30-Day Checklist at a Glance

Day	Task	Where
Day 1	Buy prepaid SIM (passport only)	Incheon Airport terminal
Day 1	Book ARC appointment on HiKorea	hikorea.go.kr
Day 1	Set up Wise/Revolut for interim payments	App download
Day 1–3	Confirm Korean address (in Korean)	Landlord / employer
Day 3–7	File move-in report (전입신고)	Local 주민센터
Day 7–14	Attend ARC appointment	Immigration office
Day 21–28	Pick up ARC	Immigration office
After ARC	Open Korean bank account	Bank branch
After ARC + bank	Upgrade to postpaid phone plan	KT / SKT / LG U+ store
Month 1 (if employed)	Confirm NHIS enrollment with employer	HR / nhis.or.kr
Month 6 (if not employed)	Expect NHIS auto-enrollment bill	Mail / nhis.or.kr

You can also book your ARC appointment directly through the official Korea Immigration Service portal:

Book ARC Appointment on HiKorea

Frequently Asked Questions

How long do I have to apply for my ARC after arriving in Korea?

You have 90 days from your date of entry. Missing this deadline can result in fines of up to ₩10,000,000 under the Korean Immigration Act. Processing takes 2–3 weeks, so apply no later than week 8 to receive your card in time. Confirm the exact deadline calculation at the Immigration Contact Center (1345).

Can I open a Korean bank account before I get my ARC?

Most banks require your ARC to open a full-service account. Some branches may process an account with just a passport, but the account will typically have heavily restricted transfer limits. Toss Bank is the main exception — it allows ARC-based online account opening without a branch visit. In the meantime, use Wise or Revolut for daily spending.

What do I do for healthcare during my first 6 months if I’m not employed?

As a non-employed foreigner, NHIS enrollment is automatic after 6 months of residency. During the first 6 months, you pay 100% of medical bills out of pocket. Most expats maintain private international health insurance for this gap period. Check that your policy covers treatment inside Korea and review the NHIS exemption criteria at nhis.or.kr/english if applicable.

Do I need a Korean phone number to open a bank account?

Yes, at virtually all Korean banks. The phone number is used for SMS OTP verification during account setup and for mobile banking access afterward. Your number must be registered in your exact legal name — the same name as on your ARC — or verification will fail. Set up your SIM before you go to the bank.

How do I register my address in Korea?

Visit your nearest community center (주민센터) with your ARC, passport, and lease contract within 14 days of moving in. File a move-in report (전입신고). This is free and takes about 15 minutes. You must also update this registration every time you move.

Can I leave Korea while waiting for my ARC?

It is strongly advised not to. Your passport may be held or processed by the immigration office during the 2–3 week waiting period. If you must travel, apply for a Re-Entry Permit at your immigration office before departing. Leaving without one can invalidate your ARC application and visa. Confirm at immigration.go.kr before any travel.

Is the ARC the same as the Residence Card?

Yes. The document was officially renamed from Alien Registration Card (ARC) to Residence Card (RC) in 2024. Existing ARC cards remain valid until they expire. New cards issued after 2024 are labeled “Residence Card.” Most expats, banks, and landlords still use the term “ARC” interchangeably in everyday conversation.

Final Thoughts

Your first 30 days in Korea set the foundation for everything that follows. Three actions matter most: book your ARC appointment on Day 1, get a prepaid SIM immediately at the airport, and file your move-in report within 14 days of settling in. Everything else — your bank account, your postpaid phone plan, your health insurance — flows from these three steps.

Korea’s bureaucracy is logical once you understand the dependency chain. The biggest mistakes foreigners make are waiting too long to book the ARC appointment and showing up to the bank without a Korean phone number. Avoid both, and your first month becomes manageable rather than stressful.

For your next steps, read our complete guide on housing options for foreigners in Korea — including jeonse, wolse, and what to check in your lease before signing.