I know it's a long way off but I thought I would be proactive and go into the Revenue Department Chonburi and ask some questions about getting a TIN (tax identification number).
It was very quiet there on a Friday morning, took a queue number and waited only 5 minutes to be called, good so far.
First problem, none of the people on the counter spoke ANY English, but with a bit of mime and showing my Resident Certificate that was issued for the purpose of obtaining a Tax ID, I got an application form in Thai.
I had read on line that this form was available in English, not so at Chonburi, only Thai,
I did confirm that you need copy of Passport ID page and current Visa stamp as well as the Certificate of Residence to obtain the Tax ID number for Personal Income Tax (PIT).
Every one was friendly enough, just not very helpful because of the language problem, not their fault, it's their country,
I wanted to ask a number of questions but I will have to go back with an interpreter for that,
Has anybody got any better information that might help?