@Othmar ***

, Your entry stamp (and extensions) are invalidated when you leave Thailand without a re-entry permit. I understand you have a still valid multiple entry Non-OX visa in your passport. Multiple entry (<- not single entry) visas are valid until the "valid until" date on the visa sticker regardless you are staying inside or outside Thailand.

@Othmar ***

,

@Ray *********

pointed out something essential I missed.

In case you can enter on visa-exempt (1), you still have to wait to apply for Non-O in-country (3) until your current Non-OX expires because you cannot have multiple valid visas at the same time in your passport.

Possible measures, but either may or may not work:

a) ask the embassy that issued your visa to void it before you fly to Thailand again.

b) ask the IO at the entry point to void your visa.

( c) as mentioned already, enter Thailand after your visa expired)

Thank you,

@R**

,

@Oth***

, hope your plan will work smoothly. Good luck changing visas.

Getting a Thai passport and re-entering Thailand on it might be the simplest.

If she has a Thai ID, basically no need to do anything. But she can also apply for a 1-year extension being a former Thai/proving as a Thai citizen on her entry as a US passport holder to reduce any issue.

Thank you, OP, for sharing the information.

This post is about how to get Non-O after Non-OX, NOT about how the annual check-up is handled at the immigration offices. Please check with your local office about their policy regarding 90-day reports and 1-year check-ups when a Non-OX holder keeps staying in Thailand for more than one year.

@John *********

, I wrote 15 "working" days. Chiang Mai actually has 15 working days policy which is 21 calendar days if no national holidays

Q. Will the IO ignore a valid visa on my request?

-> That would be hit or miss. You can ask for it for sure, but the decision to ignore your visa or not is in the officer's hands.

Q. Could I skip step 2. As money is already in the bank for some time.

-> That depends on how fast you can get all the necessary documents for your application. You don't have to apply for 30 days extension if not necessary. Remember, the Chiang Mai office has a minimum of 15 working days remaining policy for an initial in-country visa application. And there are supposed to be 3 holidays in late July and 1 in middle August.

There supposed to be a re-entry permit counter when direct international departure flights are scheduled at Krabi airport. Better to contact Krabi airport directly to be sure. Or get one at the immigration office where you got your extension.

That is what you have to ask your current employer and BOI (OSOS).

Your employer will give you documents (or support you to apply) for cancellation of your work permit and extension of stay. Those documents have the termination date of your employment. You can apply for cancellation a few days or weeks in advance. OSOS MIGHT give you a grace period, but it could be any of 0, 7, 14, or 21 days depending on the BOI company (employer) and maybe some other factors. <- This is also what you need to ask your employer AND BOI.

You need to talk with your current and new employer about the procedures for you to follow.

@Den ***

, In Bangkok, you will need these for a 90-day report

- passport

- filled TM.47 form

- TM.6, if you have one

- TM.30 receipt

along with copies