Opening a Thai bank account is one of the first practical steps for anyone planning a long stay in Thailand. It makes paying rent, utilities, and day-to-day expenses far easier, and for visa purposes particularly the retirement visa a Thai bank account is mandatory. Here is what you need to know.
Which Banks Are Most Expat-Friendly?
The four major Thai banks are Bangkok Bank, Kasikorn Bank (KBank), SCB (Siam Commercial Bank), and Krung Thai Bank. Of these, Bangkok Bank and Kasikorn Bank have the best reputation for accepting expat customers with straightforward documentation.
Branch staff acceptance of expats varies significantly between individual branches, even within the same bank. The best strategy is to visit a large branch in an area with a high expat population (e.g. Silom or Sukhumvit in Bangkok, Nimman or Santitham in Chiang Mai) where staff have more experience with foreign customers.
What Documents You Need
- Passport: With a valid long-stay visa. Most branches will not open accounts for 30-day tourist stamps or visa exemptions.
- TM30 receipt: This is a near-universal requirement across all major banks in 2026. The TM30 is the "Notification of Residence" form that your landlord or accommodation provider files with immigration when you stay at a property. Without a TM30 receipt, most branches will decline to open an account regardless of your visa type. If you do not have one, ask your landlord to file it they are legally required to do so.
- Proof of address: Rental contract or utility bill in your name, consistent with the address on your TM30.
- Some banks require a work permit or letter from a school for Non-B visa holders.
Tax Implications of a Thai Bank Account
Money transferred into a Thai bank account from overseas is potentially assessable income under the 2024 foreign income rules. The act of transferring money into Thailand does not in itself create a tax liability what matters is whether that money constitutes assessable income. Savings accumulated before 1 January 2024, and income exempt under Royal Decree 743 (LTR holders) or a tax treaty, are not affected.
For tax reporting purposes, it is useful to keep a separate account for pre-2024 savings and a separate account for post-2023 income transfers, to clearly document the source of funds.