What tax information is needed for U.S. passport holders transferring bank accounts in Thailand?

A U.S. passport holder attempting to transfer their bank account to a new branch in Thailand was advised by Bangkok Bank employees that they would need tax information from the Thai tax authorities. Community members shared their experiences, noting that account transfers between branches often require opening a new account, which can be inconvenient. They also discussed challenges regarding passport updates and obtaining bank statements for immigration purposes, emphasizing the necessity of visiting the home branch for some services. The consensus suggests it may be easier to maintain the existing account or utilize mobile banking to avoid unnecessary charges when accessing funds from a different province.