Yep!…and that 180 day tax resident thing may not save you legally…a lot of people on that visa are admittedly disclosing evidence of there intent to do remote work in Thailand…you could be liable for tax on the days you actually work in Thailand weather or not your even paid in Thailand…check out sect 41 on the Thai revenue in English website….first paragraph…interesting to see how that may be interpreted as any business carried on in Thailand etc…can be subject to tax…hope I’m wrong but this could be a nightmare….good luck!