Every Thai company limited is subject to the corporate income tax (CIT) on its total annual net profit at the end of every year. The tax rate will vary between 15-30% depending on the kind of business. However, the company may be exempted from paying tax for a maximum period of 8 years, or pay less tax if it is promoted by BOI. Foreign company not carrying on business in Thailand is subject to a final withholding tax (WHT) on certain types of assessable income (e.g. interest, dividends, royalties, rentals, and service fees) paid from or in Thailand. The rate of tax is generally 15%, except for dividends, which is 10%, while other rates may apply under the provisions of a double tax treaty (DTT).