You are using an outdated browser and your browsing experience will not be optimal. Please update to the latest version of Microsoft Edge, Google Chrome or Mozilla Firefox. Install Microsoft Edge

March 6, 2025

Thailand Extends Jurisdictional Powers of Tax Court to Criminal Tax and Customs Disputes

On February 18, 2025, the Thai Senate approved an amendment to the Act on the Establishment of and Procedures for the Tax Court. This follows the July 2024 approval by the Thai cabinet and subsequent preparation of supporting secondary legislation. This important amendment to procedural law, once it takes effect, will extend the exclusive jurisdictional powers of the Tax Court to all criminal tax, customs, and excise tax claims in addition to the court’s existing jurisdiction over all such civil claims.

The amendment, while now formally approved by the legislature, is awaiting the king’s signature and will take effect 180 days after its publication in the Government Gazette. Based upon its projected publication date, the amendment will likely take effect by the end of the third quarter of this year.

This development is set to offer a more sophisticated Tax Court litigation process for highly specialized and often complex criminal tax and customs claims, something with which Thailand’s traditional criminal courts have struggled. It also ensures that all tax and customs matters are adjudicated before the same court, saving time, party costs, and judicial resources. This appears likely to result in more consistent adjudication of criminal tax and customs disputes, a benefit for the Thai government and party litigants alike.

Any ongoing criminal tax and customs claims already commenced with the respective criminal courts on the date on which the amendment becomes effective will remain under the exclusive jurisdiction of those criminal courts. The Tax Court will have exclusive jurisdiction over all other claims.

This important legislative change offers those managing or otherwise facing civil and/or criminal Thai tax or customs disputes the opportunity to more effectively plan and execute a uniform defense strategy before a single, qualified forum.

RELATED INSIGHTS​ 

May 8, 2026
The global trade environment for Thai exporters in 2026 has shifted significantly. Recent enforcement developments in both the United States and the European Union show a clear shift in trade policy: regulators are no longer focused solely on tariff levels, but also on whether products genuinely originate where exporters claim they do. Adding to this complexity, the US Supreme Court’s February 2026 decision striking down the use of the International Emergency Economic Powers Act (IEEPA) to impose tariffs has upended the legal basis for a major pillar of US tariff policy, creating significant legal and commercial uncertainty for exporters worldwide, including in Thailand. For Thai companies integrated into regional supply chains, this change carries material implications. Although the IEEPA-based US reciprocal tariffs have been struck down, intensified circumvention enforcement continues under separate legal authorities, and the administration has signaled its intent to reimpose tariffs under alternative statutory frameworks, while EU authorities are using anti-circumvention investigations where trade patterns shift. In both jurisdictions, the decisive issue is whether manufacturing in Thailand constitutes substantial transformation under applicable rules of origin. Such origin determinations increasingly drive duty exposure, audit risk and commercial disputes. In 2026, the ability to defend a product’s Thai origin is not merely a procedural step, it is central to preserving market access in the US and EU. Impact Of US Circumvention Enforcement and an Uncertain Tariff Landscape Following the 2025 Framework for an Agreement on Reciprocal Trade, Thailand saw a shift in its tariff relationship with the US. A substantial range of Thai-origin goods were subject to a 19% reciprocal tariff under the IEEPA. However, the Supreme Court’s ruling invalidating the use of IEEPA for tariffs has removed the legal basis for that rate. The Administration has indicated it intends to pursue replacement tariffs under other statutory authorities,
April 29, 2026
Is arbitration only as good as the arbitrator? Undoubtedly. Choosing an arbitrator is therefore one of the most pivotal decisions a party makes in the arbitration proceedings. In practice in Vietnam, many arbitration proceedings have been significantly prolonged because of multiple unsuccessful appointments arising from conflicts of interest, challenges by the opposing party, or subsequent unavailability. In other cases, additional expenses were incurred where appointed arbitrators were located far from the hearing venue or were unfamiliar with the arbitration language or applicable law. To preempt these issues and secure a more efficient and cost-effective appointment, this article proposes a practical, step-by-step approach to arbitrator selection. Step 1: Know Your Own Case At the outset, it is essential to develop a clear understanding of the dispute by addressing the following key considerations: Nature of the dispute: From which sector does it arise (e.g., construction, international trade, investment, banking and finance, technology, intellectual property)? Value and complexity: Is the dispute high or low in value? Does it involve multiple parties, multiple legal systems, or foreign elements? Is its crux related to multiple legal matters? Existing arbitration agreement: Does the agreement specify the seat, language, and governing law? If not, what would be appropriate considering the parties’ conduct and the applicable arbitration rules? Having clear answers to these questions in mind will help identify, from the outset, the core criteria for selecting an appropriate arbitrator. Step 2: Form Your Candidate Pool Based on the understanding developed in Step 1, a candidate pool should be formed through a structured and careful process: Researching Arbitrator Profiles At the initial stage, comprehensive research should be conducted via reliable sources to ensure both accuracy and diversity of candidates. Official sources, such as lists of arbitrators published by arbitral institutions, most notably the Vietnam International Arbitration Centre
April 9, 2026
In March 2026, the United States Trade Representative (USTR) initiated two significant investigations under Section 301(b) of the Trade Act of 1974 that directly affect Thailand. The first investigation examines overproduction in manufacturing sectors caused by government support or policies that distort normal market conditions across 16 economies, including Thailand. The second investigation, launched the following day, targets 60 economies, also including Thailand, for alleged failures to impose and effectively enforce prohibitions on the importation of goods produced with forced labor. Taken together, these investigations represent a significant escalation in US trade enforcement and create substantial risk for Thai exporters, manufacturers, and businesses with supply chain connections to the United States. The investigations are moving on an accelerated timeline, with the USTR indicating that potential trade measures, including tariffs, could be imposed as early as July 2026. This article provides an overview of the investigations, highlights their specific implications for Thailand, and outlines practical considerations for affected businesses. Section 301 as a Trade Enforcement Tool Section 301 of the Trade Act of 1974 gives the USTR authority to investigate foreign acts, policies, or practices that are considered unreasonable or discriminatory and that burden or restrict US commerce. If the USTR concludes that such practices exist, the statute allows a wide range of remedial measures, including the imposition of tariffs, nontariff trade restrictions, and negotiated agreements with foreign governments. Unlike other trade authorities, Section 301 does not set limits on the level of tariffs or the duration of measures, giving the USTR considerable flexibility to address perceived trade imbalances or unfair practices. Historically, Section 301 investigations take up to a year to complete. In this instance, however, the USTR has indicated that the investigations will proceed on a much faster timetable, with an unofficial target of concluding by July 2026.
April 1, 2026
On March 30, 2026, Thailand’s Customs Department announced a strategy to raise import duties on a broad range of consumer goods—including plastic items and electronics accessories—to their maximum statutory ceilings, which often sit at 30% or 40%. Many of these goods currently benefit from promotional or incentive rates as low as 5%. For importers, e-commerce platforms, and logistics providers, this development demands immediate attention. While these increases generally require cabinet approval, they do not require full parliamentary amendment of the Customs Tariff Decree B.E. 2530, as the Customs director-general and the finance minister hold delegated authority to adjust rates within existing statutory bounds. Businesses should not assume that the legislative process will provide significant lead time before higher rates take effect. Death of the De Minimis: Abolishing the THB 1,500 Loophole This “ceiling-rate” policy, which is designed to equalize the landed cost of foreign goods with the domestic production costs of Thai manufacturers, builds on a sweeping set of customs reforms that have already begun to reshape Thailand’s trade environment. The foundation of this new regime was laid on January 1, 2026, when Thailand formally abolished the longstanding THB 1,500 duty exemption for small imported parcels under Customs Notification No. 219/2568. Every imported item is now subject to VAT and applicable import duties for its declared value, regardless of parcel size or transaction amount. By narrowing the scope of exemptions previously granted to low-value goods under the Customs Tariff Decree B.E. 2530, the government has made clear that the era of tax-free cross-border micro-imports is over. Three-Phased Strategy and Legal Modernization The March 30 announcement is the second phase of a three-part regulatory roadmap: Immediate enforcement: The removal of the THB 1,500 loophole and the imposition of VAT on all parcels, effective January 1, 2026. Tariff realignment: The current