Yes. One must renew before the old one expires. You can do that up to 14 days prior (though the time might be different depending upon your local office). Or you can fly out and come back in.

John Wilson I am sure the poster appreciated the education... though we all knew what they were saying.

@Ruth ******

that is BS. In Thailand outside of BKK or perhaps CM Amex is not readily accepted though. On that point you are right at least.

Visa or M/C not Amex. Not always accepted. Be sure to get a card that does not charge for international transactions.

Talk to a good agent... plenty that are recommended here. Try TVC....

@Gary *****

Or just take a Christmas holiday trip for a week or so to Singapore which is fun over the holidays and then re enter and depending on what country on an exempt for 30 days renewable.

@โจเซฟ ********

Just arrange through TVC a LTV?

@Brandon ***********

well that is true.... if they are following the rules and not applying their own discretion. To say cannot in Thailand especially is dependent upon many factors. However... you are right on general and i certainly would not advise taking the chance. Going through an agent given that many embassies and consulates do not offer an income affidavit any longer.

Get documents together showing 65K Baht per month income to show Thai Immigration or go through an agent with said documents.

Yes you can. Depending upon your home country you may not be able to get a "letter" asking Thai Immigration to transfer the visa from the old to the new. But that should not be a problem. Renewing a US Passport from overseas takes about 6 weeks. Plan on that length of time.... though it might be qicker.