I have an Elite visa and am switching to an LTR visa, which has a tax exemption via royal decree. I have received advice from a director at a top firm per the following:
"An Elite Visa (Privilege Visa) Holder cannot join any tax benefits or tax exemptions for foreign income. They never could and ** they never will **. Only the LTR visa scheme is the safe haven. We discussed this topic a few weeks ago with the Director General of the Head Revenue Department Bangkok."
There is no way an exemption will be negotiated for this visa.