A Thai bank account unlocks daily life here — PromptPay payments, rent transfers, salary, bills. Opening one got harder in 2026 and now depends a lot on your visa and which branch you walk into. Here's the realistic playbook: which banks to try, what to bring, and the fees and SIM details that catch newcomers out.
Opening an account tightened in 2026 and now varies by bank and visa. Bangkok Bank may require a long-stay visa, while Kasikorn (KBank) is often more flexible, sometimes opening with less. Branch managers have real discretion, so be ready to try a second branch or a second bank if the first says no. This is general information, not financial advice — confirm current policy before you rely on it.
| Bank | 2026 stance | Notes |
|---|---|---|
| Bangkok Bank | May require a long-stay visa | Largest network; stricter for tourists/short-stay |
| Kasikorn (KBank) | Often more flexible | Sometimes opens with less; branch discretion applies |
Come prepared with your passport, your visa or long-stay proof, and a proof-of-address letter (from your landlord, condo or sometimes immigration). Once the account is open, link PromptPay to a Thai mobile number — it's how most everyday payments and transfers work in Thailand, with QR codes accepted almost everywhere.
Until your Thai account is open, foreign cards face a flat ฿220 foreigner ATM fee per withdrawal — so take out larger amounts less often. It's worth carrying a multi-currency card (Wise or Revolut) to cut conversion costs in the meantime. Once you have a Thai account and PromptPay, everyday spending becomes near-free.
Mobile banking is tied to your phone, so a Thai SIM (AIS or True) is needed to receive OTPs and run the bank apps — sort this out before or alongside the account. For provider and plan detail, see our SIM & internet guide.
The smooth order is: Thai SIM → proof of address → open account → link PromptPay. Bank policy and visa requirements shift, and branch discretion is real, so treat anything specific here as something to verify with the bank or a professional — it isn't financial advice. Fit this into the wider arrival checklist in our first-30-days guide.
Yes, but it tightened in 2026 and depends on your visa and branch. Bangkok Bank may require a long-stay visa, while Kasikorn (KBank) is often more flexible. Branch managers have discretion, so be prepared to try a second branch or bank. This is general information, not financial advice.
Typically your passport, your visa or long-stay proof, and a proof-of-address letter (from your landlord, condo or sometimes immigration). You will usually also need a Thai mobile number to link PromptPay and run the bank's app.
Thai ATMs charge a flat ฿220 foreigner fee per withdrawal on foreign cards, so take out larger amounts less often. Carrying a multi-currency card such as Wise or Revolut helps cut conversion costs until your Thai account is open.
Yes — a Thai SIM (AIS or True) is needed to receive OTPs and run the bank apps, so arrange it before or alongside opening the account. Once set up, link PromptPay to that Thai number for everyday payments.