Business Practices | Accounting Rules | Tax Rates | Intellectual Property | Legal Framework | Standards
Banks are open between 9.30am to 3.30pm, Monday to Friday. Foreign exchange counters are generally open between 7.00am to 8.00pm. Banks in department stores follow the opening hours of the stores which are usually 10.00am to 8.00pm. In some limited locations there are currency converting machines which convert foreign bank notes. These are open 24 hours.
Government offices are usually open between 8.30am to midday and 1.00pm to 4.30pm, Monday to Friday.
| New Year's Day | 1 January |
| Makha Bucha Day | 21 February |
| Chakri Day | 6 April |
| Substitution for Chakri Day | 7 April |
| Songkran Days | 13-15 April (12-16-17 in some areas) |
| Labour Day | 1 May |
| Coronation Day | 5 May |
| Ploughing Day | 9 May |
| Visakha Bucha Day | 19 May |
| Asarnha Bucha Day | 17 July |
| Buddhist Lent Day | 18 July |
| H.M. The Queen's Birthday | 12 August |
| Chulalongkorn Memorial Day | 23 October |
| H.M. The King's Birthday | 5 December |
| Constitution Day | 10 December |
| New Year'sEve | 31 December |
| Labor Day | 1 May |
| H. M. The Queen's Birthday | 12 August |
| H. M. The King's Birthday | 5 December |
| Constitution day | 10 December |
-On accounting, the basic accounting principles practiced, for example, in the United States or Europe, are accepted in Thailand, as are the various accounting methods and conventions as sanctioned by law. The Institute of Certified Accountants and Auditors of Thailand is the authoritative group promoting the application of generally accepted accounting principles. Any accounting method adopted by a company must be used consistently and may be changed only with approval of the Revenue Department. On consolidation: local companies with either foreign or local subsidiaries are not required to consolidate their financial statements for tax and other government reporting purposes, except for listed companies which must submit consolidated financial statements to the Securities and Exchange Commission of Thailand. Regarding auditing, requirements and Standards Audited financial statements of any juristic entities (a limited company, a registered partnership, a branch, or representative office, or a regional office of a foreign corporation, or a joint venture) must be certified by an authorized auditor and submitted to the Revenue Department and (except for joint ventures) to the Commercial Registrar for each accounting year. Auditing standards conforming to international auditing standards are, to the greater extent, recognized and practiced by authorized auditors in Thailand. Each company has to produce a balance sheet and a profit and loss account for each accounting year. The external control of accounts must be given to a body of auditors chosen by the company and by the commercial department of the ministry of Treasury.
-Dividends paid by a limited company, registered under Thai law, to another Thai limited company or to a company registered under the law governing the Stock Exchange of Thailand may be exempt from corporate income tax, if the holding of the shares in the payer company is in compliance with conditions prescribed in the Revenue Code.
- A reduction or exemption from tax may be granted to juristic entities in accordance with tax treaties between Thailand and foreign countries.
- A corporate income tax exemption for a period of 3 to 8 years may be granted to promoted businesses under the Investment Promotion Act.
In addition, dividends, fees for goodwill, copyright or other rights received from the promoted businesses may also be exempt from income tax in the hands of the recipient. Regarding Deductible Expenses and Allowance:
Generally, expenses incurred exclusively for the purpose of generating income or for the purpose of business, are tax deductible. However, the deduction of some expenses and allowances must comply with the rules prescribed in the Revenue Code like:
- Depreciation Allowance: Any accounting method of depreciation which is generally accepted can be used, but the depreciation rates cannot exceed the rates specified in the Royal Decree issued under the Revenue Code. Accelerated depreciation may be allowed for cash registering machines and machinery and/or accessories used in research and technological development. - Reserves set aside from premiums of an insurance business as well as reserves set aside as provision for bad or doubtful debts from credit extension by banks or finance and securities or credit foncier companies are allowed as deductions. Other reserves are not allowed. - Contribution to a provident fund for employees, established in accordance with Ministerial Regulations, is deductible. - For tax purposes, bad debts may be written off only in accordance with the procedures and conditions prescribed by Ministerial Regulations. - Operating losses may be carried forward for five accounting periods to offset against future profits.
Withholding taxes apply to various categories of income paid to juristic entities. The amount of tax to be withheld depends on the category of income and the tax status of the recipient. The withholding tax rates on some important categories of income are as follows:
(1) Rates on Dividends - 10% on dividends paid to domestic and foreign corporations (2) Rates on Interest - 1% on interest paid by financial institutions (banks, finance or credit foncier companies) to domestic companies that are not financial institutions - 10% on interest paid by financial institutions to associations and foundations - 15% on interest paid to foreign corporations (final tax payment) (3) Rates on Royalties - 3% on royalties paid to domestic companies and partnerships (juristic partnerships) - 10% on royalties paid to associations and foundations - 15% on royalties paid to foreign corporations (final tax payment) (4) Others - 15% on capital gains, service fees, professional fees and rent paid to foreign corporations (final tax payment) - 3% on service fees and professional fees paid to domestic corporations or permanent branch offices of foreign corporations - 5% on service fees and professional fees paid to non-permanent branch offices of foreign corporations The withholding tax rates applied to foreign corporations may be reduced or exempted under tax treaties.
| Individual income tax | Progressive rate from 0 to 37% |
| From THB 0 to 150,000 | 0% |
| From THB 150,001 to 500,000 | 10% |
| From THB 500,001 to 1,000,000 | 20% |
| From THB 1,000,001 to 4,000,000 | 30% |
| From THB 4,000,001 and over | 37% |
- transport expenses spent in good faith by an employee or a holder of office exclusively, and wholly for carrying out his/her duties;
- medical expenses paid by an employer for an employee and his/her family;
- share of profits obtained from a non-registered ordinary partnership or a group of persons;
- income from sale of securities on the Stock Exchange of Thailand
Some deductions are also in place and are detailed on the Revenue Depatment web site.
| Type of property and law | Validity | International agreements signed |
| Patent Patent Act (No.3) B.E.2542 (1999) |
20 years |
Patent Cooperation Treaty (PCT) |
| Trademark Trademark Act B.E. 2534 (1991) |
10 years renewable |
Nice agreement |
| Design Patent Act B.E. 2522 (1979), as amended by Patent Act (No. 2) B.E. 2535 (1992) and Patent Act (No. 3) B.E. 2542 (1999) |
10 years. | |
| Copyright |
50 years. | |
| Industrial Models Patent Act BE 2522 |
10 years. |
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Last updates: November 2009