I was pointing out what COULD happen under the present Thai immigration laws. Chances of anyone getting caught randomly are extremely remote. I've lived in Thailand 15 years, never ONCE have I been requested to show my visa status, and only twice have I had to show driver's licence at road checkpoints and both of those during covid. But......
I was stating the small change to the tax rules is targeting wealthy Thai citizens, not the non-taxable retirees. Sadly, like many on Facebook you twisted what I said and inferred I was applying it to all expats. Many expats work in Thailand so if course they pay tax, many are digital nomads who, should they bring in untaxed money, will have to pay tax. I was referring to one category of expat. If you have full tax residency in Thailand and nowhere else, of course you must pay tax, that's the same everywhere in the world.
Depends on individual circumstances, but it's all there is the DTAs on the TRO website. In my own individual case (and I'm sure there's others in similar situations) I'm a dual tax resident (have been for years - many people believe the 180 day rule is something new, which it most certainly isn't), but due to the tie-breaker contained within my home country's DTA, I retain full tax residency in my home country, which is further backed up by the conditions that my pension is only taxable in the country of residency, which is my home country. I've been in Thailand for 15 years and looked into this years ago, and have never required a tax ID or a tax return as I have the certificate of tax residency from my home country. Naturally those that have severed all ties with their home country might be in a different position, but there's certainly no blanket rule
You do nothing. There are fear mongers out there who actually believe Thailand will tax savings. They cannot get it into their thick heads it's only possible to tax UNTAXED INCOME.