Freelancer Working Abroad, Living In Thailand

[fatfather]

I'm on the way to quitt my employment and change over to freelance work. I'll work abroad but live in Thailand. How to manage this here in Thailand without running in problems with tax authorities here? I'll need a tax number for billing my customers. Do I have to found a company even no money is made here in Thailand, does a tax number require a work permit how to establish my freelance job legally?

[Sunbelt Asia]

You don't state what kind of work you will be doing? If your work is done online but inside the Kingdom of Thailand then that is considered working in Thailand and you will need to set up a company with the usual 2 million baht capital and Thai employees to obtain a work permit.