Can I get a one-year extension of stay in Thailand with 800K in the bank on a tourist visa?

yet, insurance or not, I do not recommend flying to Thailand without a proper health insurance, be it mandatory or not

@John *******

yes, is is outdated. It is clearly written on the header

@John *******

even if the embassy does want insurance, they only want minimal insurance for 90 days. A basic travel insurance policy would meet the requirements

@John *******

the advantage is it's easier to open a bank account with a non-O visa. It's become almost impossible to open a bank account without an agent if you're on visa exempt or tourist visa.

@John *******

then not of any concern for you

@John *******

technically no advantage (you DON'T need a 90-days insurance, you will find this out once you apply by the E-visa system). The financial proof however on immigration is 800.000.-THB instead of 10,000.- US$ . . . . . "Required documents to upload in the system (Large and clear JPEG or PDF format):

Passport Biodata Page (Must be valid within 6 months)

Photograph of the applicant, taken within the past six months.

Flight itinerary to Thailand. Itinerary must include the applicant's name, flight number, and date of traveling.

Checking or saving bank statements (every month in the past 3 months) with an ending balance of no less than $10,000 that shows the applicant name.

Passport pages containing all travel records for the past 12 months. "