Personal income tax, I mean.

As business visa's are for 3 months only, do you pay tax on any salary you get. Anyone for example, teachers, do you pay tax yourself or does your school pay it?

I read it's 20 per cent, is that true?

Thanks for your replies.

I teach and the school pays my tax. I think it's somewhere in the region of 1500 Baht per month, although I did get a bill to contribute 5000 Baht more last year. I gave them my sons birth certificate and I should get some money back, so I've been told.