Every Immigration office has different rules. In CM, the first one has to be done in person.

@Steve ******

Depends where you are. printing and filling out the form takes about 3 minutes. My last 90 day report took 30 seconds. Most time consuming part was finding a blue pen.

@Ty *****

I haven't read of any exceptions to the 45 day visa exemption. If you're a passport holder eligible for the new 45 days, it doesn't matter where or how you enter.

Just to clarify Tod's excellent advice above, re your #2 -- you're allowed two visa exempt entries by land in each calendar year. You could go on Oct 1 and again in Dec, then again in Feb 2023 and April 2023. Each entry can be extended once. But you better be sure you meet all the other requirements for entry to Thailand.

When I went thru a similar process 8 and 10 months ago at CM Immigration, they had one additional requirement. They wanted a copy of every page in my bank book. I had only made a copy of the last page. I had to go out and make copies of every page going back to 2015. Fortunately, CM does not require proof that the funds were from abroad or I might not have qualified. I topped up my 800k with cash, withdrawn at ATM's from my US account.

The only other requirement is that every page you submit must be signed in blue ink.

@Tod ********

Correct, I was not on an extension then. I was either on a METV or an old 1 year Non-Imm O issued in the US when they still issued those. They transferred my "walk-in" stamp from Mae Sai when I left from BKK.

Also correct, the US Embassy doesn't really care but I still have never seen anywhere where it says you have to transfer the stamps immediately. Like the OP, I'm curious if I need to make a special trip to Immigration since I'm now on a yearly extension and will be getting a new passport later this year.

@Ellie ******

can you point out where it says stamps must be transferred "immediately". I'm on my third passport here and both previous times had the transfer done at BKK when leaving the country. I just checked the US Embassy website and all they have to say is:

"Thai immigration law requires entry/exit stamps and Thai visas be transferred into new passports. After receiving your new passport, please visit any Thai immigration office to have the visa transferred. The letter to facilitate visa transfers comes standard with all passport renewals and is provided without fee."

@Tod ********

None of the above. I killed my O-A by leaving without a reentry permit. returned visa exempt. Got a 90 day Non-O. Went back about 60 days later for an Extension based on retirement. They added on about 360 days, not a full year as I expected too. Photos if you really want them.

That's the way I assumed it would work but I did my first 1 year extension of a Non-Imm O visa (issued in Chiang Mai) earlier this year and lost about 5 days. Not a big deal but they did not give me a full year from when my 90 day extension was to expire.

It depends on how easy it is to get the TV. If that's easy, do that. If getting the TV is a pain, then come visa exempt, and get an extension at Immigration for an additional 30 days. Buy the train ticket ahead of time to prove you're leaving within the allowed 30+30 days.