Your first 30 days
Korean money life is a chain: the phone unlocks the ID, the ID unlocks the bank, the bank unlocks everything else. Here’s the order that works — and how much money to have while you build that chain.
Every number here is yours — the tool just adds them up with a safety buffer. If you don’t know a number yet, that’s your cue to go get a real quote.
| One-time cash (move-in + setup) | 300,000 KRW |
| Living until first pay | 2,071,346 KRW |
| Safety buffer (15%) | 355,702 KRW |
| Recommended landing money | 2,727,048 KRW |
A planning estimate from the numbers you enter — no cost-of-living averages are baked in, and nothing you type is stored. Prices and deposits vary hugely by city and situation; replace the defaults with real quotes.
The order that unlocks everything
Most first-month frustration comes from doing things in the wrong order — walking into a bank on day two, or waiting on a payment app that can’t verify you yet. The chain below is the one that actually works.
How much money should I land with?
Enough to cover three buckets: one-time move-in cash (the deposit is the monster), one-time setup (SIM, household basics), and weekly living costs until your first salary — which often lands six or more weeks after you do.
Why is that? Korean salaries are usually paid monthly, and the payroll cutoff means a mid-month start often pays out the following month. Meanwhile the deposit and first rent leave together in week one. That mismatch — money out first, money in later — is the entire first-month problem.
A number that works ≠ a number that verifies you
Buy a prepaid SIM with just your passport — at the airport or a convenience store — and you’re reachable on day one. But it has one hard limit: Korean apps verify identity through a phone line registered to your ID, and a passport-registered prepaid line usually can’t do that.
Why is that? Banks, payment apps, and government sites lean on phone-based identity verification (본인인증), which checks that the line is registered to the same person and ID doing the signing-up. Until your line is tied to your residence card, you have a working phone that can’t vouch for you.
The 90-day ARC clock
Staying more than 90 days? You must register and get a residence card (외국인등록증) — and you apply through an immigration-office visit booked on HiKorea. The visit is the deadline; the card itself commonly takes weeks more to arrive.
Why is that? Appointment slots fill up fast in arrival seasons, and the card is the key to almost everything financial — full banking, phone verification, contracts. Every week you delay booking pushes the whole chain back. Book early in week one, even if the appointment lands weeks later; processing times vary by office, so treat any number you read as a guess and your receipt as the fact.
Your first account comes with training wheels
With the residence card in hand, opening an account is straightforward — but expect it to start as a restricted account (한도제한계좌) with low transfer limits until the bank sees more of you: a salary, a purpose, a paper trail.
Why is that? Korean banks apply anti-fraud limits to fresh accounts, and foreigners hit them hardest because there’s no local history yet. The limits loosen with evidence — an employment contract, salary deposits, time. Plan around it: don’t schedule a big transfer for the week the account opens.
Salary, insurance, housing — what starts on its own
Once the account exists, the system starts moving without you: payroll deducts tax and social insurance before you see the money, and health insurance enrolls you on its own clock — employees through work, and most other residents automatically after six months.
Why is that? The deductions on your payslip (pension, health, employment insurance, income tax) are the default, not an error — and understanding them early prevents the classic “why is my salary smaller than the contract?” shock. Housing is the opposite: nothing there is automatic, and the deposit needs your active defense (확정일자 and 전입신고 — the housing guide walks through it).
Common terms
Questions new arrivals ask
Sometimes, with a passport — but expect limits, and many branches will simply ask you to come back with the card. The realistic plan: survive on a foreign card and some cash first, then open the account properly once the card is in hand. The banking guide covers what each path needs.
Not usually. The domestic payment apps want a Korean bank account plus phone-based identity verification — and that verification wants a line registered to your residence card. It clicks into place in week 3–6, not day one.
No — it just moves differently. A foreign card works at most staffed shops, ATMs marked “Global” give you cash, and a prepaid card covers transit and small payments. The visitor pages cover that survival kit; this page is about building the permanent setup.