Thailand has introduced a comprehensive overhaul of its tax litigation procedures that will significantly impact how tax disputes are handled. The Regulations for Tax Cases B.E. 2568 (2025) take effect on November 24, 2025, and repeal the prior B.E. 2544 (2001) regulations in full. These regulations support the implementation of the Act on the Establishment of the Tax Court and Tax Case Procedure (No. 3) B.E. 2568 (2025), which expands the Tax Court’s jurisdiction to certain criminal tax matters. Published in the Government Gazette on October 14, 2025, the regulations have been reorganized into three parts covering civil cases, criminal cases, and forms, and are designed to accelerate proceedings, tighten evidentiary discipline, and modernize court operations. Structural Reform and Scope The prior regime governed only civil tax disputes. Under the new framework, the regulations introduce a dedicated chapter for criminal cases alongside updated civil procedures, as the Tax Court now has express authority to adjudicate specified criminal tax offenses. Select mechanisms applied in civil case proceedings, such as electronic communication, recording testimony, and appointing experts, also apply to criminal proceedings mutatis mutandis where they do not conflict with criminal procedure. Civil Cases: Evidence Submission, Deadlines, and Scheduling Parties must submit, together with the witness list, originals of all documentary evidence, media, or electronic data (such as files, USB drives, or CDs), and all physical evidence in the party’s possession. Failure to submit any original within the deadline (see below) results in a loss of the right to adduce that item at trial, subject only to narrow exceptions where submission is impossible due to force majeure or where receipt of the evidence is indispensable to the interests of justice. The practical impact is that parties are now obligated to assemble and verify all original documents and data at the very

Over the past two years—particularly since Thailand announced incentives for EVs, including tax exemptions and reductions—there has been a clear trend of manufacturers relocating their facilities to Thailand. This shift is reshaping the country’s industrial landscape and creating significant opportunities in the real estate sector for companies looking to establish or expand EV manufacturing operations in Southeast Asia. Incentive-Driven Market Transformation The government’s tax exemptions and reductions have proven effective in attracting foreign investment, with Chinese manufacturers currently dominating the market. Most EV parts and car manufacturers operating in Thailand are from China, reflecting the prominence of Chinese EV brands that have already established a presence in the country. The sector encompasses manufacturers of electrical equipment as well as companies seeking to establish facilities for producing electric vehicle components, parts, and accessories. The surge in activity is evident across Thailand’s EV manufacturing sector, with legal practices handling these transactions experiencing unprecedented demand. Industrial Real Estate Framework and Market Dynamics Thailand’s industrial real estate framework provides compelling advantages for foreign manufacturers, who typically face restrictions on foreign land ownership under the Land Code. However, foreign investors can benefit from exemptions to these restrictions if the land is located within industrial real estate zones designated by the Industrial Estate Authority of Thailand (IEAT) or they obtain investment promotion from the Board of Investment (BOI) if the land is located outside an industrial estate area governed by the IEAT. Both the IEAT and BOI provide special tax and nontax incentives, including foreign land ownership, with even greater incentives available for land situated within the country’s Eastern Economic Corridor (EEC). This regulatory advantage has sparked a parallel trend in land development. Industrial real estate developers in the EEC are actively consolidating land into large plots to develop new industrial estate projects, recognizing that

Thailand’s Ministry of Finance has introduced a five-year personal income tax exemption on capital gains from the disposal of cryptocurrency or digital tokens. The Ministerial Regulation No. 399, published in the Government Gazette on September 5, 2025, offers the personal income tax exemption for transfers occurring between January 1, 2025, and December 31, 2029. The ministerial regulation was enacted to promote Thailand as a global financial center and digital asset business hub while encouraging increased domestic investment in digital assets. Key Conditions The exemption, which covers capital gains from cryptocurrency and digital token disposals during the specified five-year period, applies only to individuals. Companies that trade in digital assets are not eligible for this tax exemption. With the tax holiday set to expire in 2029 (unless extended), individual traders should plan ahead for postexemption taxation to ensure full compliance with Thailand’s personal income tax requirements. Proper documentation of digital asset transactions during the exemption period will be essential for future tax compliance. For more details on this tax exemption, or on any aspect of Thailand’s tax law and regulations, please contact Saravut Krailadsiri at [email protected] or Papavarin Sarawongsuth at [email protected].

Thailand’s consumer protection authorities have strengthened oversight of residential leasing businesses following numerous complaints about unfair lease terms, including unjustified deposit forfeitures and excessive utility charges. The Contract Committee of Thailand’s Office of the Consumer Protection Board issued the Notification of the Contract Committee Re: The Stipulation of Residential Property Leasing as a Contract-Controlled Business B.E. 2568 (2025), published in the Government Gazette on June 6, 2025. The notification becomes effective on September 4, 2025, and repeals the prior notification issued in 2019. The notification prescribes two types of standard residential lease contracts: short-term residential lease contracts (for leases of not more than three years) and long-term residential lease contracts (for leases of more than three years up to 30 years or for the lessee’s lifetime). However, use of these standard contract forms is not compulsory, and parties may use any form as long as the terms do not contradict the notification’s requirements. Expanded Scope The notification expands the scope of enforcement to include any lessor with at least three residential units, while the 2019 notification applies only to businesses leasing five or more residential units. Hotels and dormitory operators are excluded, as they are regulated under other specific laws. Residential lease contracts entered into under the 2019 notification will remain valid and enforceable until the expiration of the contract. Any residential lease contract executed from September 4, 2025, onward must comply with the new notification. The notification also expressly extends its applicability to lease contracts made through online platforms. Electronically executed lease contracts must comply with the required and prohibited terms specified in the notification as well as applicable laws governing electronic transactions in Thailand. Mandatory Terms and Conditions Residential lease contracts must contain clearly legible Thai text no smaller than two millimeters in size and no more