OJAS

But if you are currently on overstay, do you seriously think that your local immigration will gladly process a 90-day retirement non-O visa conversion for you with no questions asked? Far more likely that you would find yourself on a one-way trip to the IDC and subsequent deportation from Thailand, I would have thought!

Not through a 90-day conversion at his local office, though - at least not officially. The Immigration Bureau guidance states "If you have overstayed, you are not allowed to submit an application for this type of visa": https://www.immigration.go.th/wp-content/uploads/2022/02/9.FOR-RETIREMENT-PURPOSES-50-YEARS-OLD-NON-O.pdf

In any event it's not clear to me what benefit @merijn would derive from obtaining a legalised version of a P60 certificate - quite apart from the fact that the procedures he would need to comply with in order to achieve this end would IMHO be tantamount to using a sledgehammer to crack a nut. The amount of tax he pays to HMRC on his UK-generated income has little bearing on whether said income is deemed assessable in the TRD context. And, rather than leaving things until after obtaining a TIN, he would IMHO be far better off determining sooner rather than later whether he would be liable to tax here in Thailand by reference to the UK/Thailand DTA*. In short, except in the case of income earned before 1 January 2024 regardless of its source, the chances are that he would be, unless he is in receipt of a UK government occupational pension (Civil Service, local authority, military, police, NHS, etc). * https://assets.publishing.service.gov.uk/media/5a80bddc40f0b623026953eb/uk-thailand-dtc180281_-_in_force.pdf

Legalisation of any official UK document, such as the P60 tax form to which @merijnrefers, for use in Thailand is not, unfortunately, a mere matter of someone at the British Embassy in Bangkok simply plonking a stamp on said document. Instead, it involves a cumbersomely bureacratic and time-consuming process as spelt out in considerable detail in the following link: https://www.gov.uk/guidance/documents-for-british-people-abroad#getting-uk-documents-legalised-and-certified In practice this essentially means him having to comply with these 3 steps sequentially by getting his P60 form: (1) legalised by the FCDO's Legalisation Office in the UK; then (2) stamped by the Royal Thai Embassy in London; and finally (3) approved by the Thai Ministry of Foreign Affairs in Bangkok.

As opposed to 2,000 THB WITH a receipt??

Plus how much of his, their and your time?

Is your debit-card-less account also without internet/app access? I can only make cash withdrawals from my dedicated 800k account (should I ever be minded to do so) in person at a branch.

IMHO the blame lies more with the banking "geniuses" who were responsible for designing lousy apps which are inherently cumbersome, awkward and slow to use, rather than with those who are striving to make the best of an extremely bad job in using them. About a year ago I had a brief flirtation with the dreaded Bangkok Bank app, but dumped it after it started playing me up big time whenever I attempted to use it for making scanned QR payments at Big C, Makro, etc. As a result, cash is also king for me nowadays here in LOS. A great pity that Contactless has not caught on here in the way it has back in my home country (UK) as well as in Australia, presumably. However, I understand that the maximum amount for Contactless payments without the need for passcodes, etc is a ridiculously low 1,500 THB in LOS, when compared to around 4,300 THB (£100) in the UK, so that may have something to do with it.

Is there not a risk of being bumped off a flight without a seat reservation, though, if it is over-booked (which you may only find out about at check-in)? Or are Emirates flights never over-booked?

From the BBC news article referred to in the OP: "In 2019, the Conservative government estimated it would cost £600m to fully restore pensions to the level they would have been if they had not been frozen." An amount which IMHO is small beer when compared to the alleged £22bn black hole in the UK's public finances which Rachel Reeves was striving to plug in the recent Budget!

Scaremongering par excellence IMHO.

As have I. In any event, I would prefer not to have to run the risk of accidentally defacing my passport when removing stapled receipts from it every 90 days or so.

I seriously wonder whether the ability to watch a movie like a normal human being might prove a struggle too far for a number of AN posters! 😆

Grammatical splitting of hairs par excellence IMHO.

@JJ Madcow - and/or with the Denmark/Thailand Double Taxation Agreement: https://www.rd.go.th/fileadmin/download/nation/denmark_e.pdf