The Fiscal Year 2027 Budget Expenditure Act has been published in the Royal Gazette following a Royal Command to enact it into law. The act establishes a total budget of 3.788 trillion baht for FY 2027 and will officially commence on October 1, 2026. The Ministry of Finance and the Budget Bureau are empowered to oversee and distribute the national budget.

The Royal Gazette website published the act on September 30, 2026, after His Majesty King Maha Vajiralongkorn Bodindradebayavarangkun commanded its proclamation. This action was deemed appropriate to establish the budget for the fiscal year 2027, with the advice and consent of Parliament. The act contains stipulations regarding its title, effective date, and the responsibilities of the Prime Minister and the Minister of Finance in its execution.
Specifically, the act designates the budget for fiscal year 2027 as the Fiscal Year 2027 Budget Expenditure Act. It will take effect on October 1, 2026, with the Prime Minister and the Minister of Finance charged with its enforcement.
Chapter 1, titled “General Provisions,” details the primary allocations. The total budget for FY 2027 amounts to 3,788,000,000,000 baht, distributed as outlined in the act. The Ministry of Finance is authorized to disburse the national budget in accordance with the specific items and amounts stipulated in this Act, or as allocated by the Budget Bureau, or as transferred or adjusted in compliance with the law.
Source: https://’ratchakitcha.soc.go.th/documents/131367.pdf

