The government is studying the feasibility of introducing a windfall tax on refineries. The Fiscal Policy Office (FPO) has acknowledged it is studying the feasibility of introducing a windfall tax on refinery businesses in Thailand. A windfall tax imposed on refineries is generally applied in two groups of countries: those that drill oil and those that import crude oil for refining. The calculation of a windfall tax for refineries generally follows two approaches. The infrastructure land windfall tax aimed to promote tax fairness and encourage contributions from those who benefit from public infrastructure investments that result in higher land prices.

Source: Bangkok Post March 27, 2026 21:41 UTC