1. Ordinary and necessary expenses. However, the deductible amount of the following expenses is allowed at a special rate: - 200% deduction of Research and Development expense, - 200% deduction of job training expense, - 200% deduction of expenditure on the provision of equipment for the disabled
2. Interest, except interest on capital reserves or funds of the company
3. Taxes, except for Corporate Income Tax and Value Added Tax paid to the Thai government;
4. Net losses carried forward from the last five accounting periods;
5. Bad debts;
6. Wear and tear;
7. Donations of up to 2% of net profits;
8. Provident fund contributions;
9. Entertainment expenses up to 0.3% of gross receipt but not exceeding 10 million baht;
10. Further tax deduction for donations made to public education institutions, and also for any expenses used for the maintenance of public parks, public playgrounds, and/or sports grounds;
11. Depreciation: Provided that in no case shall the deduction exceed the following percentage of cost as shown below. However, if a company adopts an accounting method, which the depreciation rates vary from year to year, the company is allowed to do so provided that the number of years over which an asset depreciated shall not be less than 100 divided by the percentage prescribed below.