On June 16, 2026, Mr. Ekniti Nitithanprapas, Deputy Prime Minister and Minister of Finance, revealed after the Cabinet meeting that the meeting resolved to approve the implementation of the Global Minimum Tax. This sets a minimum corporate income tax rate of 15% for large multinational enterprises (MNEs), in accordance with international regulations that Thailand, as a member of the Organisation for Economic Co-operation and Development (OECD), has agreed upon at the Ministry of Finance.<\/p>\n\n
The Cabinet approved Thailand’s official exchange of Global Minimum Tax information with other countries. The submission of data to the Revenue Department and the commencement of information exchange are scheduled for June 2027. Furthermore, the Minister of Finance or an authorized representative has been empowered to transmit such data to international organizations and member jurisdictions. “The primary objective of this policy is to close loopholes used by multinational companies to shift profits to tax havens to avoid tax liabilities in the countries where they actually conduct business. The Revenue Department estimates that collecting a Top-up Tax under this mechanism will generate approximately 10 billion baht in annual revenue.” <\/p>\n\n
Mr. Ekniti stated that, however, enforcing the 15% minimum tax rate will directly impact multinational companies that previously received incentives from the Board of Investment (BOI), which may result in their effective tax rates falling below the international minimum threshold. The government is therefore preparing to restructure incentives. Instead of using tax reduction mechanisms that conflict with the 15% ceiling, the government will provide subsidies or tax credits in formats recognized by the OECD.<\/p>\n\n
“The Ministry of Finance is currently in the process of amending the Revenue Code to accommodate these changes. Additionally, the BOI’s Competitiveness Enhancement Fund serves as another supporting mechanism for investors.”<\/p>\n\n
Mr. Ekniti further noted that the Cabinet also approved three other tax measures: <\/p>\n\n
1. Reducing the e-Withholding Tax rates from the previous levels of 5%, 3%, and 2% to just 1%. This measure will remain in effect until December 2027 and is expected to boost private sector liquidity by approximately 27 billion baht.<\/p>\n\n
2. Promoting the business sector’s transition to a digital tax system by allowing a double deduction for expenses related to investments in e-Tax Invoice systems to reduce the administrative burden of documentation.<\/p>\n\n
3. Social promotion measures allowing a double tax deduction for donations supporting education and sports through the e-Donation system. This measure is scheduled to remain in effect until December 2027.<\/p>\n