Sorry to bother you again but since the immigration offices are closed today until Sunday I have one question before I go there in person point for the first extension of stay for my 08 Visa what other Financial requirements Crockett sakon is it 400000 or 800000 the insurance problem I understand and I can set up myself thank you very much
TLDR : Answer Summary
For the first extension of stay on an O-A Visa in Thailand, you need to demonstrate proof of funds of 800,000 Baht in a Thai bank account under your name for at least 2 months prior to your application. Additionally, you must obtain mandatory health insurance from a recognized provider.