How can an American prove Social Security and VA benefits for a retirement visa in Thailand?

David Maddocks John is saying that to GET your "Non-O" visa, you do the things listed on the e-visa site, including the part I quoted earlier.

That gets you the Non-O visa and entry into Thailand for 90 days. Once you are there, you will need to get a 1-year "permission to stay", which is NOT a visa.

To get the 1-year permission, you need to get the details from Immigration when you get there, the sooner the better.

For your FIRST 1-year permission, the monthly income you showed to get the visa is (apparently) NOT acceptable to Immigration. So, you need to get a bank account asap, and fund it with 800K Baht (approx $24,000).

That $$$ needs to be in the THAI bank for 2 months before you get the permission to stay, and you can't go lower than that balance for 3 months after getting the permission. That fulfills the monetary requirement for your permission to stay.

During that year, you need to transfer to your Thai bank monthly deposits of at least 65K Baht (approx $2000 USD) every month from the U.S.

For your SECOND and all subsequent annual permissions to stay (on the retirement basis of course), thos monthly deposits must continue every month. Once you get the approval and have the trail of 12 months' payments, you can take out your 800K Baht from the bank.

There's a bit more to it, but those are the essentials.

P.S. On the Washington DC U.S. Thai Embassy site, the amounts for U.S. citizens seem to have increased to 1 million Baht (instead of the 800K), and income of 80K Baht (~$2500) per month.