By Royal Command of His Most Excellent Majesty King Bhumibol Adulyadej, it is hereby proclaimed that :-

      Whereas it is deemed proper to prescribe rules, methods, conditions and rates for deduction of wear and tear and depreciation of assets

      Be it, therefore, enacted a Royal Decree by the King's Most Excellent Majesty, in exercise of the power under Section 221 Of the Constitution of the Kingdom of Thailand, and Section 65 bis (2) of the Revenue Code as amended by the Revenue Code Amendment Act (No.25) B.E. 2525, as follows:

      Section  1   This Royal Decree is called the "Royal Decree Issued Under the RevenueCode Regarding Deduction of Wear and Tear (No.406) B.E. 2545.

      Section  2   This Royal Decree shall come into force on and from the date following the date of its publication in the Government Gazette.

      Section  3   There shall be added the following provision to become Section 4 Septem of Royal Decree Issued under the Revenue Code Regarding Deduction of Wear and Tear (No.145) B.E. 2527

      Section 4   Septem Deduction of wear and tear and depreciation in respect of an asset in the category of permanent building that a company, which is a Regional Operating Headquarters, purchased or acquired for the purpose of carrying on its business shall be allowed on the date of purchase or acquisition at the rate of 25 percent of cost value, and the residual cost value shall be depreciated in accordance with the conditions and at the rate prescribed in Section 4. The afore-said rule shall be applied to assets purchased or acquired from 1 January B.E.2545.

      For the purpose of this Section, there shall be applied the definitions of "Regional Operating Headquarters" and "Supporting services" under the Royal Decree Issued under the Revenue Code Regarding Reduction and Exemption from Revenue Taxes (No.405) B.E. 2545."