@Marc *******
Hypothetical Case:
1) I am tax resident since 2024.
2) My foreign income is 100,000 baht per month.
3) I bring monthly 79,000 baht into Thailand.
4) I pay zero tax in my home country.
A )Do I need to get a TIN?
B ) Do I need to pay tax in Thailand?
No matter what you answer, I will prove you wrong.