Opening a Thai bank account as a foreigner: why every branch tells you something different

No single national checklist governs this — the government's own portal presents account opening as each bank's own requirements decision. Account opening is each bank's own know-your-customer decision, which is why the answer genuinely differs between banks — and between two branches of the same bank. The government's official portal confirms this openly, listing each major bank's requirements separately and noting that 'each bank has different requirements for opening an account.'

The official baseline documents: passport, work permit and proof of address for those working here. Without a work permit, banks want the passport plus at least one further anchor document — the portal's examples include a certificate from your embassy or an international organisation, a foreign government pension certificate, documentation of your account with an overseas bank, a letter of recommendation from a person the bank trusts, or an employer's letter for someone whose work permit is in process. Individual banks add their own items, such as a salary certificate.

Street-level practice in 2025–2026 is tighter than the written lists: major banks generally expect a long-stay reason for being in Thailand (a non-immigrant, LTR or similar visa), a Thai mobile number, a small opening deposit of roughly 500–2,000 baht, and a residence certificate from Immigration is the most reliably accepted address proof. A refusal at one branch does not bind another — trying a different branch, or a branch used to foreigners, is a legitimate and common fix. Avoid paid 'agents' offering to open accounts on tourist entries.