Indonesian banks almost always ask for a KITAS (residency permit) before they will open a standard savings account, so your banking timeline lines up with your visa timeline, not your moving date. A tourist visa, even a long one, usually isn't enough on its own. If you are on a spouse or dependent KITAS, the principal visa holder named as your sponsor is often the same person the bank wants on file, match names on your paperwork before you visit. For work rules on that visa type, see whether that visa lets you work or only reside. Bring your passport and your KITAS card, plus a domicile or reference letter if your sponsor or agent can provide one; a tax number (NPWP) is increasingly requested too, even for a basic account.
Walk-ins are possible at a branch of one of the big national banks, but many families bring along a local agent or their visa sponsor for the first visit, since staff often want someone who can vouch for the paperwork and translate if your Indonesian is thin. Expect to fill out forms by hand and provide a local phone number, then wait while the account is processed; a debit card and online banking login usually follow within a week or two, sometimes longer if the branch has to order the card from elsewhere in Indonesia. Ask about the minimum balance and any monthly fee before settling on an account type, since these vary by branch and change without much notice.
Once the account is open, it works like any local bank account for paying rent and settling school invoices, with mobile banking covering the rest. For money coming from family abroad, or payments you need to send home, read up on how to move money between Indonesia and other countries before you count on your new account for anything urgent, since international transfers often run through separate channels. Bank fees and the occasional trip back to the branch for paperwork updates are easy to overlook when budgeting for the move, so fold them into the other recurring costs families forget to plan for.
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