DrJack54

Bangkok immigration. Your link is same site I posted above.

CW? Have you tried this link https://bangkok.immigration.go.th/en/onlineservice-and-publicguide/

Process outlined here. https://aseannow.com/topic/1311886-visa-exempt-to-retirement-extension-process-and-cost/ https://aseannow.com/topic/1297092-non-o-visa-retirement-purpose/ https://aseannow.com/topic/1325238-procedures-for-non-imm-o-and-one-year-retirement-extension-from-a-visa-excempt-30-day-entry/

There are 80 immigration offices. Let's wait for widespread use of this form. Even then could mean.,.Nothing

Be aware that if the non O is based on retirement to obtain 12 month extension using income method, you would need to show 12 monthly transfers.

OP, you could consider an METV which would provide stress free stay up to 9 months and air travel to any nice break places such as Vietnam. No concerns about visa exempt flights.

Ok understand now.. USA, UK, AU stoped providing "address affidavit" Agent can obtain COR at eg Pattaya, however that doesn't help much. You could check it out. Can't see you obtaining COR at CW immigration

How did you get a COR previously to obtain your TDL. BTW: Driving license can renewed up to a year past expiry.

There are many ways to have a 4-5 month stay in Thailand. You seem focused on COR. You will not obtain one at CW without a TM47 report.

I'm missing something with your dates. You are saying that your entry from Vietnam past Jan 3 hence need to enter visa exempt?

There are no 30 day extension to a non O. You can obtain 12 month extension or if married to thai you can also obtain a 60 day extension

Personally I don't think the boarding pass would come into it. I was thinking about my own travel habits when I return to Thailand from Oz. I always fly to Saigon and spend week there and subsequently onto Bangkok. I have ongoing extensions with reentry permit to Thailand however if I did not.....I would obtain an eVisa in Oz for Thailand and use it after my trip to Vietnam.

I was not referring to bankbook update. I was referring to "bank letter". Bank letter can be obtained prior to day of application. If that's not the case in Samui then fine.

Enter prior to Jan 3 to obtain another 60 day stamp. That 60 day permit can be extended by a further 30 days at local immigration office

Most folk apply one or two weeks prior to expiry of 30 day stamp. The 30 day extension is added to expiry of your current stamp. Be aware some strange offices eg Jomitien, sometimes send you away and tell you come back when closer to expiry.

Definitely. I deal with CW and do it pretty much when window opens 45 days early. As most are aware the 12 month extension is added to expiry of current permission of stay. Zero gain by waiting till close to expiry.

Which immigration office will you use? BTW you cannot apply for the non O retirement until you turn 50. Here is a thread that explains process from visa exempt entry stamp to non O retirement https://aseannow.com/topic/1311886-visa-exempt-to-retirement-extension-process-and-cost/ https://aseannow.com/topic/1325238-procedures-for-non-imm-o-and-one-year-retirement-extension-from-a-visa-excempt-30-day-entry/

30 days

https://aseannow.com/topic/1296565-non-b-visa-get-it-in-vientiane-or-savannakhet/

Just my opinion....you could consider return flight to Udon Thani and short minivan to friendship bridge ,(Nong Khai) You don't need an agent. Both Vientiane and Savannakhet require an appointment. @Tod Daniels may have advice..

Where are you located Assume you are just doing a border bounce and not obtaining a Visa in Laos

It happens. You omitted the purpose of my post. "Can obtain at your immigration office or international airport."

Recent extension done at Jomitien. https://aseannow.com/topic/1330770-diy-retiement-extension-jomtien/ https://aseannow.com/topic/1329085-after-completing-retirement-extension/

You state that you WILL turn 50 in January. You cannot obtain a non O prior to turning 50. At most immigration offices you could obtain a certificate of residence however at Bangkok you cannot unless you have a 90 day report..

5-10 days. Apply early. You have enter by date. When you enter you receive stamp according to entry date eg SETV 60 days.