Why Thai Banks Are Freezing Foreigners’ Accounts Right Now

Every few weeks someone asks me a version of: “My friend’s Thai bank account just got frozen out of nowhere — should I be worried about mine?” The honest answer is that there are two completely different things happening in Thai banking right now, and most of the forum panic mixes them together. Once you separate them, whether you’re actually at risk gets a lot easier to judge.

Two different crackdowns, happening at once

The first is a nationwide anti-scam sweep that has nothing to do with nationality. Since August 2025, Thailand’s Cyber Crime Investigation Bureau has been leading a campaign against “mule accounts” — accounts used to receive and quickly move money from online scams. Reports put the number of accounts frozen or restricted in this campaign at roughly 3 million, the overwhelming majority of them belonging to Thai nationals. Banks can suspend funds in a flagged account for up to three days on their own authority; police can extend that to seven. A dormant account that suddenly receives a lump sum, a name mismatch between a SIM card and the account holder, or transaction patterns that look like they’re passing money through rather than using it — any of these can trigger a hold while the bank verifies what’s going on.

The second is specific to foreigners, and it’s not really about freezing so much as about who gets to hold a personal account at all. Through 2025 and into 2026, Thai banks have progressively tightened which visa categories qualify for a personal account. Tourist visas and visa exemptions are now effectively excluded across all the major banks, and the Destination Thailand Visa — despite running five years — is classified as a tourist visa for banking purposes, which has caught out a number of DTV holders whose accounts were opened validly in 2024 and then frozen during a later compliance audit. The practical floor now is a long-stay visa: Non-Immigrant B, an LTR, or a retirement extension.

What actually gets an account flagged

• A dormant account suddenly receiving money. If you haven’t used an account in months and a large transfer lands in it, that’s a classic mule-account signature, even when it’s entirely innocent.
• Mismatched details. A phone number registered to someone else, or a SIM card name that doesn’t match the account holder, is one of the most commonly cited triggers.
• Visa status that no longer qualifies. As above — this one isn’t about behaviour at all, and a compliance review can catch it years after the account was opened.
• Being flagged as suspicious for any reason. Once flagged, expect to verify your identity in person, sometimes with a biometric face scan, before the hold lifts.

Keeping your account in good standing

1. Hold the account on a long-stay visa — retirement extension, Non-B, or LTR — rather than a tourist entry or DTV, if you plan to bank here for more than a few months.
2. Keep the account active with a predictable pattern. Regular, similar-sized transactions in and out draw far less attention than a dormant account that suddenly moves a large sum.
3. Match your details. If you change phone numbers, update the SIM registration and your bank details together — a mismatch here is an easy, avoidable flag.
4. Respond fast if you're asked to verify. A held account usually clears in days once you show up with ID; ignoring the request is what turns a three-day hold into a much longer one.