Thaksin Shinawatra Files Lawsuit Against Revenue Department Over Tax Assessment

According to a report by Matichon Online on September 16, 2026, former Prime Minister Thaksin Shinawatra has filed a lawsuit against the Thai Revenue Department. The legal challenge concerns a tax assessment of 15 billion baht, which Thaksin argues constitutes double taxation.

Thaksin’s legal team contends that this assessment is redundant, citing the previous seizure of 46 billion baht in proceeds from the sale of Shin Corp shares. The lawsuit seeks to contest the validity of the current tax demand in light of these prior financial actions.

For residents and expatriates in Thailand, this development highlights ongoing high-profile legal proceedings involving prominent political figures and the national tax authority. While such cases are primarily matters of administrative and tax law, they often draw significant public attention and can influence the broader political climate.

At this stage, the matter remains before the court. It is yet to be confirmed how the judiciary will rule on the claim of double taxation or what the ultimate impact of this litigation will be on the Revenue Department’s assessment policies. Observers are waiting for further court hearings to clarify the legal standing of the tax demand.