@Sefton *******

Thanks for your comments guys. I've read up on the PE rule. But my role is HR, which I understand to be an auxiliary role which doesn't establish PE. After reading all the comments in this post, I'm thinking it best that I arrange my travel to be less than 180 days in Thailand and go to other countries in the other half of the year.

@John *********

But the thing I was reading said something about a Permanent Establishment rule. The fact that I'm a W-2 employee remote working in Thailand and the US company not taking out Thai taxes, puts them at a risk of being non-tax compliant. Do you know anything about this or how serious the issue might be?

@John *********

Thank you John. I think you hit on what I was looking for. I was more concerned about the company I'm working for in the US being tax compliant. I didn't want them to get in trouble or be hit with a huge tax bill from Thailand. I'm a W-2 employee. And I'm reading other places online that suggest I should go to 1099 independent contractor, so that the entire tax compliance rest on me only and not on the company I work for. So that way it mitigates the company's risk.