Income that is subject to withholding tax can be categorized as follows:
The minimum amount of assessable income to be subjected to tax withholding for both categories 1 and 2, paid to a tax liable recipient according to a single contract, is a total of 1,000 THB or more.
Source: The Revenue Department, 90 Phaholyothin 7, Phayathai, Phayathai, Bangkok 10400
Tel. +66 2272 8000