What income proof is necessary for a NON-O retirement visa in Thailand after the US embassy stopped issuing income letters?

Okay, ONE LAST TIME just so everyone is clear about this

AT THIS TIME <- meaning right now as of yesterday when the immigration office closed, there is NO policy change in regards to the ways to meet the financial requirements for extensions using the income from abroad method. <- That means you use the affidavit of income from abroad notary from your consulate.

The current police rule that states the income letters are good for 6 months from the date they're issued is still in effect AND AT THIS TIME the immigration officers (at least in Bangkok) are stating that IF you get the letter before your consulate stops issuing them AND if you use it before it expires (meaning within 6 months from the date it's issued) they WILL accept it next year from extensions of stays.

There has been NO new policy written on how people will meet the burden of proof as far as showing the minimum income per month. Certainly it will need to be written and implemented but AT THIS TIME, no one really knows what it will be.

There is no change at Immigration Office, also there is no other facility to get this Embassy letter. And you can find multiple discussion about this, so I close the commenting as nothing new can be added till the Thai Immigration Office announce some changes of regulations.