I recently applied for mine (non o visa) in the UK. I provided bank statement dating back to 3 months proving UK equivalent to 800k baht. I actually had more in the account. My visa came through within less than a week
The ask:thailand community, consisting of multiple Q/A groups with over 100,000 members, powers this platform. It is not an official government resource. Our members actively contribute to this resource, and while we strive for accuracy, we cannot guarantee its complete reliability. Assistance to travelers is provided as a community service.