October 2025 Amendments to the UAE Tax Procedures Law and Relevant Federal Supreme Court Case Law
The legislative framework governing taxation in the United Arab Emirates is subject to periodic revision to address evolving administrative requirements and ensure legal clarity. The foundational statute, Federal Decree-Law No. 28 of 2022 concerning Tax Procedures (published in Official Gazette Issue 737 on 10-10-2022, effective 01-03-2023), has been subsequently amended. The first amendment occurred via Federal Decree-Law No. 17 of 2024 (published in Issue 784 on 30-09-2024, effective 30-10-2024). Most recently, the statute was amended by Federal Decree-Law No. 17 of 2025 (published in Issue 809 on 14-10-2025). This analysis examines the substantive changes introduced by Federal Decree-Law No. 17 of 2025, which enters into force on 01-01-2026, in the context of established principles derived from the jurisprudence of the UAE Federal Supreme Court. 1. Temporal Application of the Amendments (Effective Date and Retroactivity) The application of these legislative amendments is governed by established principles regarding the temporal effect of legislation. The amendments introduced by Federal Decree-Law No. 17 of 2025 are effective from 01-01-2026. The Federal Supreme Court adheres strictly to the principle of the non-retroactivity of laws (مبدأ عدم رجعية القوانين). It is settled jurisprudence that a law applies only to situations arising after its publication and enforcement, and does not extend to legal positions established and finalized before its issuance (Federal Supreme Court No. 627/2023, Administrative-Tax). Concurrently, the Court recognizes the principle of the immediate and direct effect (الأثر الفوري المباشر) of new legislation. This principle dictates that new legislation governs all facts and effects occurring subsequent to its effective date. Furthermore, the immediate effect may extend to the ongoing consequences of situations that originated before the new law, in order to unify the legal treatment of similar positions. This is construed as an immediate application, not a retroactive one (Federal Supreme Court Nos. 1480/2022 and 1/2023, Administrative-Tax). Consequently, the amendments, being primarily procedural, will apply with immediate effect to procedures initiated on or after 01-01-2026. This includes the mechanisms for error correction (Article 10(5)) and the issuance of Guiding Decisions (Article 54 repeated). The application of the newly introduced statutes of limitation, particularly the definitive time bar for refund applications under Article (38), requires precise application of these principles. While procedural timelines generally apply immediately, the explicit extinguishment of the right to a refund (Article 38(6)) impacts substantive rights. The application of these new limitations to credit balances that arose prior to the effective date will be determined by the principles of non-retroactivity and immediate effect, particularly concerning rights pertaining to tax periods that concluded prior to 01-01-2026. Furthermore, jurisprudence distinguishes between administrative and criminal law concerning retroactivity. The Federal Supreme Court has held that administrative penalties are governed by administrative rules which apply with direct effect. They differ from criminal rules, which may apply retroactively if they are more favorable to the accused. Consequently, amendments to administrative penalties generally do not apply retroactively to violations that occurred prior to the amendment (Federal Supreme Court No. 1108/2021, Administrative-Tax; Federal Supreme Court No. 578/2022, Administrative-Tax). 2. The Formalization of Guidance and the Definition of Administrative Decisions A pivotal legislative development is the introduction of Article (54) repeated. This provision empowers the Federal Tax Authority (FTA) to issue “Guiding Decisions” (القرارات التوجيهية) concerning the application of the Tax Procedures Law and substantive Tax Laws to specific transactions. Crucially, the article stipulates that these decisions are binding on both the FTA and the taxpayer. This amendment must be analyzed against the backdrop of established administrative law principles regarding the justiciability of administrative acts. The Federal Supreme Court has consistently defined an administrative decision as an expression of the administration’s binding will, pursuant to its public authority, intended to create, modify, or abolish a legal position (Federal Supreme Court No. 25/2021, Administrative-Tax; Federal Supreme Court No. 772/2021, Administrative-Tax). Historically, jurisprudence has held that mere clarifications (التوضيحات), explanations, or interpretations issued by the FTA, including private clarifications issued to individual taxpayers, do not constitute administrative decisions capable of appeal. The rationale has been that such communications serve an interpretive (revealing) rather than a creative (constitutive) function regarding the law, and thus do not inherently alter a taxpayer’s legal status (Federal Supreme Court No. 206/2022, Administrative-Tax). The courts characterized these clarifications as preparatory procedures (Federal Supreme Court Nos. 79/2021 and 95/2021, Administrative-Tax). Consequently, taxpayers generally could not directly challenge an unfavorable clarification; they were required to proceed, potentially incur a liability (e.g., via an assessment or Voluntary Disclosure), and then dispute the resulting administrative decision. The introduction of Article (54) repeated legislatively alters this landscape by creating a specific category of formalized, binding guidance. By explicitly rendering “Guiding Decisions” binding ex lege (by operation of law), the legislature has conferred upon them the essential characteristic of an administrative act: the capacity to immediately affect the legal position of the addressed taxpayer. A communication formally issued as a “Guiding Decision” under Article (54) repeated, due to its statutorily mandated binding nature, may meet the criteria for an appealable administrative decision as defined by the Federal Supreme Court. This suggests that taxpayers may challenge such decisions directly, without awaiting a subsequent tax assessment, as the binding guidance itself establishes the requisite legal effect. It remains necessary, however, to distinguish between formalized “Guiding Decisions” and other, less formal clarifications which may continue to be governed by historical jurisprudence. 3. Statutes of Limitation: Refunds and Assessments The amendments introduce greater specificity to the temporal limitations governing both the taxpayer’s right to claim refunds and the FTA’s authority to audit, primarily through modifications to Article (38) and Article (46). A. Limitation Period for Tax Refunds (Article 38) Article (38) has been substantially revised to introduce explicit statutes of limitation for refund applications. The amended Article (38)(2) mandates that a request to recover any credit balance must be submitted within five years from the end of the relevant tax period. Article (38)(6) explicitly states that the right to claim the refund or credit balance is extinguished if the application is not submitted within these statutory timelines, subject