Simple example, I use the 65K pm income method remitting income as it accrues & am from a country that doesn't have a DTA with Thailand... I have always been liable for tax on that income in Thailand, few (I'd bet next to no) Expats pay it.
This is why some immigrations offices are now asking for a tax certificate (or equivalent) when doing extensions based on the 65K pm method.
And that's not "Scaremongering" it's a simple fact...
( You above)
Please post a link to the government, immigration or revenue department, facts of your statement.
( relevant part in bold ) and also state the immigration offices in question.
Thanks