are you such a fuckwit that you cannot read Thai tax law for yourself? The Revenue Department publishes the tax law in English. You have no idea if I am an international tax professional or not. You have no idea if I studied law or not. Your statements are demonstrably incorrect. Again use your brain and read the tax law for yourself.
you really are a special kind of stupid. You continue to quote bullshit websites. Quote Thai tax law as a source. Go to the Revenue Code and educate yourself.
what exactly are you asking? To get your UK marriage certificate translated? To get your UK marriage certificate legalised? To apply for your first Non-O based on marriage or to apply for an extension of stay based on an existing Non-O?