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

June 11, 2025

Amended Law Empowers Thailand’s Tax Court to Hear Criminal Tax Cases

Subscribe to Updates

Thailand’s tax dispute resolution framework has undergone a significant transformation with the enactment of the Act Establishing the Tax Court and the Procedure for Tax Cases (No. 3) B.E. 2568. Published in the Government Gazette on May 27, 2025, the amended act will come into force on November 24, 2025, which is 180 days after its publication. The amended act marks a pivotal shift in the jurisdiction and procedures of the Tax Court, most notably by empowering it to adjudicate certain criminal tax cases for the first time.

Background and Rationale

The Tax Court was originally established in 1985 as a specialized forum to handle complex tax disputes, including those related to revenue, customs, and excise taxes. The creation of the Tax Court recognized the need for judicial expertise in tax law, given its technical and specialized nature. The latest amendment is designed to address procedural inefficiencies, modernize court processes, and align Thailand’s tax litigation system with international standards. The reform demonstrates Thailand’s commitment to enhancing the efficiency, transparency, and fairness of its tax dispute resolution mechanisms.

Key Amendments and Provisions

Six of the key changes in the amendment are highlighted below.

  • Expansion of jurisdiction to criminal tax cases. The most significant change is the extension of the Tax Court’s jurisdiction to include criminal offenses under the Revenue Code, customs law, excise tax law, and other tax-related laws that may be specified by royal decree. New sections in the act explicitly grant the Tax Court authority to hear and decide criminal tax cases, so individuals and entities accused of criminal tax evasion or other tax-related crimes will now have their cases heard by judges with specialized tax expertise. The law also clarifies the Tax Court’s jurisdiction when a single act constitutes multiple offenses (some tax-related, some not) or when there are multiple related offenses. Cases that fall under the jurisdiction of the Juvenile and Family Court remain excluded from the Tax Court’s criminal jurisdiction.
  • Revised definition of “tax case.” The definition of a “tax case” has been streamlined to mean any case under the jurisdiction of the Tax Court, reflecting the court’s new authority to hear criminal matters.
  • Adaptation of procedural laws. The procedural framework for the Tax Court has been updated to accommodate criminal cases. Where the act or its regulations do not provide specific procedures, the Civil Procedure Code, the Criminal Procedure Code, or the law on the establishment and procedure of khwaeng-level courts will apply as appropriate. This ensures that the Tax Court can effectively manage both civil and criminal tax cases using established legal standards.
  • Appeals process. Amendments to the appeals process clarify that appeals in criminal tax cases will follow the Criminal Procedure Code, while civil tax cases will continue under the Civil Procedure Code.
  • Procedure for nonappearance in noncriminal cases. For noncriminal tax cases, if a party is notified of a hearing but fails to appear, it is their responsibility to ascertain the next hearing date. Failure to do so will be deemed as having been informed of the proceedings.
  • Transitional provisions for pending criminal cases. Criminal tax cases already pending in other courts before the effective date of the amended act will continue in those courts until final judgment, ensuring continuity and preventing disruption of ongoing proceedings.

Procedural Regulations

To supplement the act, which lacks detailed procedural rules for conducting tax cases and managing evidence, the chief judge of the Central Tax Court (currently the only operational tax court in Thailand) will issue specific regulations. These regulations, requiring the approval of the chief justice of the Supreme Court, will define court procedures and the criteria for evidence admissibility and evaluation. According to information from the Central Tax Court, these regulations are currently being drafted and are undergoing internal discussion and debate.

Outlook

The primary objective of this legislative update is to consolidate the adjudication of criminal tax offenses within the specialized Tax Court system. By doing so, Thailand aims to leverage the expertise of tax judges for both civil and criminal tax disputes, promoting consistency, efficiency, and fairness in tax litigation. The other amendments are designed to ensure procedural coherence and a smooth transition to the new system.

With the enactment of this law, Thailand’s Tax Court will soon serve as the central forum for both civil and criminal tax cases, marking a significant step forward in the country’s legal and judicial landscape for tax matters. This reform is expected to enhance the quality and effectiveness of tax dispute resolution, benefiting taxpayers, legal practitioners, and the broader business community.

Related Professionals

Practices

Dispute Resolution and Litigation

Tax

Location

RELATED INSIGHTS​ 

March 13, 2025
Vietnam’s Ministry of Finance has released a draft Decree on Tax Administration for E-Commerce and Digital Platforms (“Draft Decree”), introducing significant tax compliance obligations that could reshape how digital platforms, and individuals and business households conducting business through the platforms, manage their tax responsibilities. Aimed at strengthening tax enforcement, the Draft Decree requires e-commerce and digital platforms to actively track and withhold taxes from business households and individual sellers, and remit payments to tax authorities. While it has not yet been promulgated, the Draft Decree is expected to take effect on April 1, 2025, leaving platforms with a limited window to prepare for compliance. Who Is Affected by the New Tax Rules? The Draft Decree significantly broadens the tax administration scope beyond traditional e-commerce platforms to cover a wide range of digital economy participants. Specifically, the Draft Decree places direct tax-related responsibilities on two major categories (collectively, “Regulated Operators”): E-commerce and digital platforms with payment functions (e.g., platforms that process buyer payments via e-wallets, bank transfers, cards, or cash-on-delivery); and Other digital-economy players that enable e-commerce transactions, including (i) intermediary service platforms connecting service providers with consumers, (ii) digital content platforms, (iii) online advertising providers, (iv) cloud computing and data storage providers, (v) social media platforms engaged in business activities (e.g., live-stream, in-app transactions), (vi) online education, gaming, and digital entertainment platforms generating revenue from digital transactions, (vii) Vietnam-based partners of foreign digital service providers facilitating local payments for overseas platforms, and (viii) intermediary payment service providers handling financial transactions for e-commerce activities. Under the Draft Decree, Regulated Operators will be required to track, report, and enforce tax compliance for both resident and nonresident individuals and households conducting business through their platforms (“Sellers”). What New Tax Obligations Do Platforms Face? Onshore platforms For the first time, Regulated Operators will
Read More
March 12, 2025
In November 2024, Thai Prime Minister Paethongtarn Shinawatra unveiled ambitious plans to enhance tax incentives for foreign film productions during a networking reception in Los Angeles, coinciding with her visit to the APEC Economic Leaders’ Meeting in Lima, Peru. This event, attended by Motion Picture Association executives and leaders from top US film companies, marked a significant commitment to boosting foreign investment in Thailand’s film industry. Thailand’s Department of Tourism (DOT) prioritized the initiative by updating the Announcement on Guidelines, Procedures, and Conditions for Applying for Benefits Under the Incentive Measures for Foreign Film Production in Thailand in December 2024 to further position Thailand as a destination for large-scale international film and television productions. Key Amendments to Film Incentives under the 2024 Announcement The 2024 announcement introduced major changes, including (1) removal of the rebate cap, previously set at THB 150 million (approx. USD 4.5 million) per project, enabling rebates based on total qualified spending, and (2) an increase in cash rebate rates. The maximum allowable cash rebate rate was increased to 30 percent from the previous cap of 20 percent. The base rate of 15 percent remains unchanged. The primary incentive available under the 2024 announcement is a 15 percent cash rebate on qualified spending in Thailand of at least THB 50 million (approx. USD 1.5 million). On top of this primary incentive, additional incentives are available; however, the total possible cash rebate is capped at 30 percent, and the additional incentives can only amount to an added 15 percent. Also, the total rebate (including both primary and additional incentives) for films with a budget of less than THB 100 million (approx. USD 3 million) is capped at 25%. To obtain a higher rebate rate, productions may apply for the following additional incentives: Compliance Requirements Foreign production companies
Read More
March 6, 2025
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.
Read More
February 26, 2025
Thailand ratified the New York Convention on the Recognition and Enforcement of Foreign Arbitral Awards on December 21, 1959, with the Convention coming into force on March 20, 1960. This ratification was a significant step in aligning Thailand’s arbitration framework with international standards, facilitating the recognition and enforcement of foreign arbitral awards in the country. In Thailand, the enforcement of both domestic and international arbitral awards is governed by the Arbitration Act B.E. 2545 (2002), which is based on the first version of the UNCITRAL Model Law on International Commercial Arbitration of 1985 (as opposed to the latest version from 2006). However, unlike Australia, Hong Kong, and Singapore, Thailand is not an UNCITRAL Model Law country. While Thailand’s Arbitration Act is influenced by the UNCITRAL Model Law, it incorporates certain local contexts that require interpretation alongside Thai court rulings. The Arbitration Act also confirms the authority of arbitral tribunals to grant interim measures, reinforcing tribunals’ power in managing disputes effectively. Additionally, the act incorporates principles from the New York Convention on the Recognition and Enforcement of Foreign Arbitral Awards (1958). This article explores the key procedural steps, timeframes, and practical challenges associated with the enforcement of arbitral awards under Thailand’s legal framework. Procedures for Enforcement of Arbitral Awards in Thailand The enforcement of arbitral awards in Thailand follows the procedures outlined in the Arbitration Act: Application to the competent court: Under the Arbitration Act, parties seeking enforcement must submit a petition to the Thai courts within three years of the award having become enforceable. The application must include the original or certified copies of the arbitral award and the arbitration agreement, along with translations if necessary. In Thailand, the choice of court for filing the arbitral award depends on the nature of the disputed contract. If the contract concerns
Read More