OJAS

OP - the following link provides info on how to go about applying for a non-O conversion for retirement at your local immigration office, if need be: https://www.immigration.go.th/wp-content/uploads/2022/02/9.FOR-RETIREMENT-PURPOSES-50-YEARS-OLD-NON-O.pdf

Actually a mix of the 2 IS possible under the "combo" method. That said, even this won't be available in the OP's case since, as @norbra has pointed out, he's a monthly transfer short as regards the 65k income method.

But there have been quite a few reports on here of retirees performing land border runs in order to cancel their original non-OA visas following the introduction of mandatory health insurance requirements for holders of such visas past and present.

Assuming that by "visa" you actually mean a non-immigrant annual extension of stay for retirement, marriage, etc, one possibility that you might wish to consider (if reasonably practicable in your case) would be to do a border run, exiting on your expiring Nationality #1 passport and re-entering visa-exempt for 30 days on your new Nationality #2 passport. Then apply for a 90-day non-O conversion with the Nationality #2 passport at your local immigration office as set out in the following link: https://www.immigration.go.th/en/?page_id=2537 Then within 30 days of the revised permission to stay granted under the non-O conversion process expiring, resume seeking annual extensions of stay, this time with your Nationality #2 passport.

But does your French pension provider specifically require life certificates to be witnessed by someone "of suitable social standing" as is the case for the British State Pension? Or are they more easy-going as to who can perform the witnessing function?

Agreed. In a race also involving a snail and a tortoise the Asean Now website would definitely cross the finishing line in last place at the moment!

https://www.rd.go.th/fileadmin/user_upload/AEC/AseanTax-Thailand.pdf

Particularly if these pics had been snapped in the Philippines where triple-lock increases are paid in full!

But legalised fraud, though, unfortunately, if that's not too much of an oxymoron. What particularly gets my goat is that, not content with freezing our state pensions, HMG then goes and adds insult to injury by tax-coding some of us as if we were in receipt of the full current triple-lock whack! And, if that was not bad enough, HMG then goes and rubs further salt into our wounds every couple of years or so by subjecting us to the life certificate witnessing process in just about the most cumbersomely bureaucratic, awkward and antediluvian manner imaginable to Man in the 3rd decade of the 21st Century!!

It is anything but "a fairly simple procedure" when it comes to a document issued by the UK government! https://assets.publishing.service.gov.uk/media/5b173648e5274a190383bc14/Legalisation_info_June_2018.pdf

Well you certainly seem to have a "Me, Mr High & Mighty Ultra-Perfect Westerner" attitude about you with your sneeringly patronising contempt for Thais, don't you? What are you doing in LOS if you really do despise the locals here so much?

It will be for the particular airline that the OP is flying with, rather than the Home Office, to advise on potential check in/airline issues relating to his son!

https://www.immigration.go.th/wp-content/uploads/2022/02/9.FOR-RETIREMENT-PURPOSES-50-YEARS-OLD-NON-O.pdf

It does appear to me unfortunate (to say the least) that those clueless dimwits in the German government who are responsible for overseeing the "weltwärts" programme appear to have had absolutely zero regard to the implications of immigration procedures in both Thailand and presumably other countries where this programme operates as well, insofar as these directly affect participating volunteers. A fundamental oversight, I think!

Still skipping up and down our soi in a state of unbridled ecstasy, fulsomely singing the praises of the With-It Tower Passport Renewal Experience to the highest heavens as being the very best thing since sliced bread, are we?

Could make a difference if you need to apply for your next annual extension before the first 90-day report after your return to Thailand falls due. This is because CW, I gather, now require to see latest 90-day "next date" notifications in considering annual extension of stay applications.

The clock will only be reset from the date you return to Thailand. If in due course you submit an online report within the acceptable timeframe for your revised due date (return date + 89 on the basis that the return date = Day 1 of the 90) - and, crucially, it is accepted - you should be OK. On the other hand, if it is rejected, meaning that you will then need to make a trip in person to CW, it is possible that the IO with whom you deal will spot the fact that you completely missed out on submitting your previous report due on 29 October and gleefully hit you with a 2,000 THB fine as a result.

Might be worth a read: https://www.gov.uk/hmrc-internal-manuals/residence-domicile-and-remittance-basis/rdrm20000

I would personally recommend that you use this passport, rather than your replacement Canadian one, to start all over again with a fresh non-O visa, as suggested by @Red Phoenix. Who knows if the brazenly moronic master of bungling incompetence and ineptitude in the Canadian Passport Office who was responsible for the willful destruction of your previous Canadian passport is still in post in 10 years' time when your new one will be due for renewal? (Although he hopefully doesn't have a twin brother working in the Irish Passport Office!)

As already said you will, but please do make a point of checking that the immigration officer at BKK Arrivals has stamped your passport correctly before leaving their booth. They may also ask to see your flight boarding pass now that the TM6 is no more as far as arrivals by air (but not by land) are concerned.

You are presumably referring to an existing passport which has had the unexpired period of its predecessor added to its 10-year validity period up to a maximum of 9 months. No problems with using such passports to enter Thailand - the 10-year rule to which you refer only applies to Brits (and other non-EU nationals) intending to darken the hallowed turf of those European countries who are subject to the debatable whims and wishes of the EU. Unfortunately, thanks to this typically totally pointless EU rule (which, to the best of my knowledge, has not been replicated by any other country on this great planet of ours), the option of adding unexpired months to the validity period of replacement UK passports is no longer available.☹️

Hopefully you haven't forgotten to let Surin have a completed TM30, though!🙄

Yep, sums up Rayong's attitude towards resetting 90-day reporting clocks at annual extension of stay time perfectly in my experience. Happens some years but not in others. Depends on the particular officer you deal with, as you say - plus, crucially IMHO, which side of the bed they had got out of that morning.

@Mike Teavee - how many digits does your mystical "new SA number" consist of?

In addition many small landlords could, I strongly suspect, be finding themselves dragged into the 40% tax band while thresholds remain frozen.