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

April 18, 2024

In-Court Arbitration in Thailand: A Tool Worth Exploring?

In-court arbitration is an alternative dispute resolution (ADR) tool provided in the Civil Procedure Code (CPC) for cases that have already been submitted to the court. Historically, in-court arbitration has not been a popular method of resolving disputes. Instead, out-of-court arbitration, as prescribed by the Thai Arbitration Act B.E. 2545 (2002), is far more utilized in practice.

The popularity of out-of-court arbitration is demonstrated by the fact that presentations on arbitration in Thailand almost exclusively focus on out-of-court arbitration; in-court arbitration is rarely even a topic of discussion. This situation is partly because in-court arbitration has not been encouraged by the courts in the past. Further, it is also not common for parties to agree on arbitration clauses after a dispute arises and also after it has been submitted to the court. Instead, arbitration clauses are generally discussed and crafted during the negotiation of the contract, which will most likely provide that any dispute arising out of the contract is to be resolved by out-of-court arbitration. Nonetheless, the Thai Courts of Justice have recently started to support this in-court ADR tool as a viable option and to encourage parties to agree in-court arbitration clauses before proceeding with a case through trial.

This article is not meant to assess whether in-court arbitration is preferable to either out-of-court arbitration or to having the case heard by professional judges of the Courts of Justice. Instead, the purpose of this article is to discuss certain key provisions of the CPC that parties should carefully consider before agreeing to an in-court arbitration clause. On this point, the CPC specifically states that out-of-court arbitration is prescribed by arbitration law, the Arbitration Act, which is an entirely separate piece of legislation drafted specifically to apply to out-of-court arbitration. In contrast, in-court arbitration is completely regulated by the CPC, not the Arbitration Act. At most, for in-court arbitration, the Arbitration Act could only be used to assist with the interpretation of the CPC provisions regarding the in-court proceedings. But even this narrow use would most likely be limited.

As discussed, in more detail below, there are two primary issues of which a party considering in-court arbitration should be aware: (1) The award from the in-court arbitration proceedings will be a part of the Thai court’s judgment; and (2) The court will play a greater role with respect to the issues or cases that are handled by in-court arbitration than the court would play in an out-of-court arbitration. One effect of this is that the freedom of the parties to tailor the in-court arbitration process is more limited than it would be with out-of-court arbitration.

  1. Section 218 of the CPC provides that an award rendered by an in-court arbitrator is an award to be decided by the court and is considered as part of the court’s judgment. Before rendering judgment, the court will review the award and decide whether to render its judgment in accordance with that award. If the award contains content that is contrary to the law, the court has the discretion to not to render a judgment according to the award. The court also has the discretion to have the arbitrator or the parties to the case revise or edit the award. Furthermore, in-court arbitration could be chosen for the entire case, or only for certain issues of the case and have the remaining issues of the case determined by judges. Regardless of whether in-court arbitration applies to the entire case or only to certain issues, the case remains categorized as a case that is litigated before the court. Regardless of whether the court decides to issue a judgment in accordance with the award or whether it exercises its discretion not to, the parties are generally barred from appealing this decision, except for the limited circumstances provided in section 222 of the CPC, which include allegations that the arbitrators did not act in good faith, that either party committed fraud, that such order or judgment is against public order or that the judgment is not compliance with the award. Finally, when the in-court arbitration award is rendered as a judgment of the court, it is not considered an “award” as provided in the Arbitration Act. Further, it is arguably not enforceable under the New York Convention.
  2. With in-court arbitration, the court remains closely involved in the arbitration process although the arbitrator is primarily responsible for the issues assigned to him/her. Under the CPC, the parties are specifically allowed to agree on only four main issues with respect to the proceedings: (1) the arbitration clause; (2) the number of arbitrators and their voting rights in rendering the award; (3) arbitrators’ fees; and (4) the termination or end of the arbitration proceedings due to the failure to appoint arbitrators. Aside from these four issues specifically set out in the CPC, it is unclear whether a court would allow the parties to agree on other aspects of the in-court arbitration proceedings and to what extent. This area has yet to be explored. In contrast, under the Arbitration Act, the parties in out-of-court arbitration proceedings have a great deal of flexibility in tailoring the proceedings to their preferences. The CPC does not mention anything with respect to in-court arbitration proceedings as ad hoc arbitration or through an institution of choice. Neither does it stipulate any qualifications of arbitrators. However, it does allow the court to order the parties to choose a different arbitrator if it does not agree with their choice. If the parties do not nominate a new arbitrator, the court may appoint one as it sees fit. Further, the grounds for objecting to an arbitrator are limited under the CPC, which refers to the list of grounds for challenges to judges under section 11 of the CPC. This list of potential grounds is narrower than those provided under the Arbitration Act for challenging arbitrators in out-of-court proceedings.

In conclusion, in-court arbitration provides parties with the opportunity to have their case litigated in court (as opposed to having the whole proceedings take place outside of the court system) but have a person other than the judge decide on some or all of the issues in the case. Parties to in-court arbitration proceedings can expect to see greater involvement from the court than they would see from an arbitrator in out-of-court proceedings, as the parties lack the independence to agree on matters such as arbitration institution, place of the proceedings, flexibility of the proceedings, or inclusion of additional grounds to object to an arbitrator. The parties should also consider that as the award is rendered as part of the court’s judgment, the award therefore may not be enforced in other countries.

RELATED INSIGHTS​ 

December 19, 2025
Prior to the dissolution of the House of Representatives, Thailand’s cabinet approved a draft amendment to the Administrative Procedure Act, following review by the Council of State. If enacted, this reform will fundamentally change how state agencies process business applications and appeals by imposing enforceable timelines and legal consequences for inaction. The draft directly targets a longstanding commercial frustration: applications and appeals that vanish into administrative silence, stalling investment and foreclosing judicial review across sectors ranging from real estate and manufacturing to healthcare and finance. The “Silence Means Yes” Rule for Applications At the core of the reform is a new automatic “approval by implication” for applications subject to statutory processing deadlines. If an official fails to notify an applicant of a decision within the legally prescribed period, the application will be deemed approved as a matter of law. This presumption shifts the costs of delay from businesses to the bureaucracy and gives applicants a definitive legal position once time expires. The mechanism applies to routine licensing and registration matters governed by explicit consideration periods in existing statutes or ministerial regulations. Officials may extend the decision period by up to thirty days, but only if they notify the applicant before the original deadline and substantiate that the delay arises from genuinely exceptional circumstances beyond their control. Certain sensitive applications are expressly excluded from automatic approval, including those that may significantly affect national security or defense, public safety and health, the environment or natural resources, or national cultural heritage. Once the deadline passes without a decision, businesses can proceed with deployment of capital and operations—construction, hiring, procurement, and market entry—without waiting for formal permission that may never arrive. For time-sensitive projects, this materially reduces regulatory timing risk. The “Deemed Rejection” Rule for Appeals The draft introduces a parallel “deemed rejection”
December 12, 2025
Similar to other types of corporate disputes, tax-related conflicts often begin with an earnest attempt to resolve matters outside the courtroom. The prospect of engaging in tax litigation can be daunting, given the potential strain on commercial relationships, the legal expenses, and the uncertainty surrounding its resolution. However, there are instances when tax litigation becomes the sole avenue for seeking redress. For individuals and entities contemplating the pursuit of tax-related legal remedies, the Thai legal system offers an accessible, impartial, and equitable platform for dispute resolution. Tilleke & Gibbins’ latest update to Tax Litigation in Thailand provides an outline for navigating tax-related disputes within the Thai legal framework. It aims to equip readers with a fundamental understanding of procedures and practices within the Thai tax litigation landscape. The full guide is available through the button below.
December 12, 2025
Cross-border disputes often end with a judgment or arbitral award issued outside Thailand. When a party has assets or operations in Thailand, the key question becomes simple: will a Thai court enforce it? Thai law treats foreign court judgments and foreign arbitral awards very differently. Foreign court judgments cannot be recognized or enforced directly and must effectively be re-litigated. Foreign arbitral awards, however, benefit from a clear recognition and enforcement process under the New York Convention and Thailand’s Arbitration Act. Thailand’s Overall Approach Thailand does not have a general law or treaty that allows automatic enforcement of foreign court judgments. To rely on a foreign judgment, a party must initiate a new lawsuit in a Thai court, plead the claim under Thai law, and prove the case again. The foreign judgment can be used as evidence, but it is not binding, and the Thai court retains full discretion to reassess both the facts and the law. Foreign arbitral awards are treated more favorably. Thailand is a longstanding member of the New York Convention and has implemented it through the Arbitration Act. The act provides a straightforward process for asking a Thai court to recognize and enforce a qualifying award, without retrying the dispute, and subject only to limited refusal grounds. Foreign Court Judgments: Persuasive but Not Binding Although Thai courts do not recognize or enforce foreign court judgments, they may rely on them as persuasive evidence under certain conditions. Courts generally give more weight to judgments that are final on the merits, issued by a court with proper jurisdiction, and reached after proper notice and an opportunity for the defendant to be heard. Default judgments or rulings based primarily on procedural grounds carry less weight, and the ultimate relevance and weight are left to the court’s discretion. In practical
December 5, 2025
One morning, a California-based company mapping its Southeast Asia rollout opened an unexpected cease-and-desist letter from a Vietnamese IP firm. To the company’s surprise, the letter asserted that a local client already owned the company’s brand in Vietnam and threatened legal action. This is not an isolated incident. In another recent matter in the sports industry, a squatter demanded at least USD 48,000 from our client to “resolve” a similar conflict. For brands entering Vietnam or expanding distribution there, these tactics can create acute risk at precisely the point at which market momentum is building. Vietnam’s rapid economic growth and deepening integration into global trade have made it an increasingly attractive destination for multinational brands. Those same dynamics have intensified a longstanding issue: trademark squatting. Vietnam has modernized its IP framework over the past decade, but its strict first-to-file trademark system continues to incentivize opportunistic filings by parties with no legitimate interest in a mark. As more foreign brands build their reputation abroad before turning to Vietnam, squatters remain alert to timing gaps and enforcement frictions. The First-to-File System: Advantages and Vulnerabilities Vietnam adheres closely to the first-to-file principle under its Law on Intellectual Property. In practice, exclusive trademark rights belong to whoever submits the earliest valid application to the Vietnam Intellectual Property Office, regardless of prior use in Vietnam. This approach offers administrative clarity and reduces evidentiary burdens compared to use-based jurisdictions. Yet it also creates fertile conditions for squatting. Bad-faith actors regularly monitor foreign markets, identify brands gaining traction, and move quickly to register those marks domestically, often long before the genuine owner enters the market or prioritizes local filings. By the time the true brand seeks protection, the squatter’s application (or registration) stands as a legal obstacle, pushing businesses toward costly oppositions, cancellations, or uncomfortable negotiations