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İdare HukukuAv. Mustafa MALGIRJune 26, 2026

Action for Annulment of Administrative Acts — Conditions, Deadlines and Process

Action for Annulment of Administrative Acts — Conditions, Deadlines and Process

Annulment Action Against Administrative Acts — Conditions, Time Limits, and Procedure

The annulment action (iptal davası) against an administrative act is the fundamental legal mechanism that enables individuals to resort to judicial review against unlawful acts of the administration. Regulated within the framework of Law No. 2577 on Administrative Procedure (İdari Yargılama Usulü Kanunu — İYUK), this type of action constitutes one of the most concrete manifestations of the rule of law principle. Annulment actions make up a significant portion of cases filed before administrative courts in Turkey. This article examines in detail the definition, conditions, time limits, suspension of execution, and the effects of a judgment in annulment proceedings.

What Is an Annulment Action and What Is Its Statutory Basis?

An annulment action is a type of administrative action brought on the grounds that a unilateral and final act of the administration is unlawful, with the aim of having the act set aside with retroactive effect. It is regulated under Article 2(1)(a) of Law No. 2577 (İYUK) and may be brought when one of the five elements of an administrative act — competence, form, grounds, subject matter, or purpose — is tainted by illegality.

The annulment action is the most effective instrument for judicial review of the administration's acts and transactions. Article 125 of the Constitution provides that “the judicial avenue is open against all acts and transactions of the administration,” and the annulment action is the embodiment of this constitutional guarantee. A judgment granting annulment affects not only the plaintiff but everyone in the same situation, because upon annulment the act is deemed never to have been performed from the outset.

The subject matter of an annulment action is limited to administrative acts. Disputes arising from administrative conduct (facts) are the subject matter of full-remedy actions (tam yargı davası). For an administrative act to be the subject of an annulment action, it must be final and executable. Preparatory acts, acts expressing an opinion, or acts of a recommendation nature cannot be challenged by annulment action.

What Conditions Must Be Met to Bring an Annulment Action?

To bring an annulment action, the plaintiff must have civil legal capacity, their interests must have been infringed by the act sought to be annulled, the action must be filed within the prescribed time limit, and the act must be final and executable. The absence of any one of these conditions leads to dismissal of the action.

The conditions for an annulment action are divided into general procedural conditions and special procedural conditions. The general conditions are laid down in various articles of İYUK and are required in every administrative action. The special conditions are specific to annulment actions. The court examines procedural conditions of its own motion at every stage of the proceedings.

Legal capacity: The person bringing the annulment action must have the civil legal capacity to exercise civil rights. Legal entities may also bring annulment actions through their authorised organs. Legal representatives may bring actions on behalf of minors and persons under guardianship.

Infringement of interests: This is the most important special procedural condition for an annulment action. According to Article 2(1)(a) of İYUK, the plaintiff must have an interest that has been infringed by the act challenged. According to the case law of the Council of State (Danıştay), the interest infringement must be current, personal, and legitimate. The concept of interest is broader than that of the infringement of a subjective right; it is sufficient for the plaintiff to have a serious and reasonable connection to the act.

Final and executable act: The challenged act must reflect the administration's final will and be capable of creating a change in the legal order. Internal correspondence, opinions, and acts of a recommendatory nature do not possess this character.

What Is the Time Limit for Bringing an Annulment Action and How Is It Calculated?

The time limit for bringing an annulment action against an administrative act is 60 days before the Council of State and administrative courts, and 30 days before tax courts, pursuant to Article 7 of İYUK. This period begins on the day following written notification of the administrative act and is a peremptory limitation period.

The commencement of the limitation period for filing an action depends on the written notification of the act to the interested party. According to Article 7(2) of İYUK, the time limit for filing an action begins upon service, publication, or announcement of the act. For regulatory acts, the period begins from the date of publication in the Official Gazette (Resmî Gazete). For individual acts, the date of service is decisive.

Under Article 10 of İYUK, interested parties have the right to apply to the administration requesting that an act be performed. If the administration does not respond within 60 days, the request is deemed rejected (implicit rejection — zımni ret). In this case, the time limit for bringing an action begins at the end of the 60-day waiting period.

Article 11 of İYUK governs the recourse to superior authorities. If a recourse is made to the superior authority of the body that issued the administrative act, or to the same body if there is no superior authority, the time limit for bringing an action is suspended. If the administration does not respond within 60 days, the recourse is deemed rejected and the suspension period ends. The remaining time limit resumes from where it left off.

When calculating time limits, holidays are included; however, if the last day of the period falls on a holiday, the period expires at the end of working hours on the first working day following the holiday. During the judicial recess (20 July – 31 August), the period continues to run, but if the last day falls within the judicial recess, the period is extended by seven days after the end of the recess.

Before Which Court Is an Annulment Action Brought and How Is Jurisdiction Determined?

An annulment action is brought before the Council of State, a regional administrative court (bölge idare mahkemesi), or an administrative court, depending on the nature of the act. Jurisdiction is determined by law, concerns public policy, and is examined by the court of its own motion. As a rule, the competent court is the court located where the administrative authority that issued the act is situated.

According to Article 32 of İYUK, the general rule as to subject-matter jurisdiction is that administrative courts have jurisdiction unless otherwise provided by law. Cases heard by the Council of State as a court of first instance are exhaustively listed in Article 24 of Law No. 2575 on the Council of State (Danıştay Kanunu). Presidential decrees, regulatory acts of ministries, and certain decisions of high regulatory boards fall within this scope.

The general territorial jurisdiction rule in Article 32(1) of İYUK applies to determine the competent court: the administrative court located in the place of the administrative authority that issued the act has jurisdiction. However, special rules of jurisdiction also exist in statute. For example, in actions concerning public servants, the court in the place of service (Article 33(3) of İYUK) has jurisdiction; in actions relating to immovable property, the court in the place where the property is situated (Article 34 of İYUK) has jurisdiction.

In the event of a conflict of jurisdiction, the file is referred to the court with the proper subject-matter or territorial jurisdiction. If no application is made within 30 days after the decision on lack of jurisdiction or incompetence becomes final to have the file transmitted to the court with proper jurisdiction, the action is deemed not to have been filed (Article 15(1)(a) of İYUK).

What Does Suspension of Execution Mean in Annulment Proceedings and How Is It Requested?

Suspension of execution is an interim measure that temporarily halts the application of the administrative act challenged in the annulment action until a final judgment is rendered. According to Article 27 of İYUK, it may be granted when the conditions that (i) execution of the administrative act would give rise to damage that would be difficult or impossible to remedy and (ii) the act is manifestly unlawful are both satisfied simultaneously.

For a suspension of execution order to be issued, two conditions must be present simultaneously: first, execution of the administrative act must be likely to give rise to damage that would be difficult or impossible to remedy; second, the administrative act must be manifestly unlawful. These two conditions are cumulative — both must be fulfilled.

A suspension of execution request may be made together with the statement of claim or by a separate petition after the action is filed. The court rules on the suspension of execution request on the file without a hearing, but may summon the parties to a hearing if it sees fit. Pursuant to Article 27(4) of İYUK, suspension of execution orders must be reasoned, and an appeal against the order may be lodged within 7 days of service of the order.

In annulment actions filed before tax courts, the filing of the action itself automatically stays collection of the assessed tax even if suspension of execution is not specifically requested (Article 27(3) of İYUK). This rule is specific to tax litigation. No such automatic stay mechanism exists in other administrative actions.

A suspension of execution order is not a final decision; it is a provisional measure. If the action is dismissed on the merits, the suspension of execution order automatically lapses. However, if an annulment judgment is rendered, the suspension of execution order is superseded by the annulment judgment.

What Grounds of Illegality May Be Raised in an Annulment Action?

In an annulment action, five grounds of illegality may be raised: competence, form, grounds, subject matter, and purpose. These grounds are listed in Article 2(1)(a) of İYUK and the administrative act is reviewed on these five elements for its lawfulness. The court may examine illegality of its own motion, without being bound by the grounds raised by the parties.

Competence: The administrative act must have been performed by the authority or person empowered to do so by law. An act performed by an authority lacking competence is unlawful as to competence. A defect in the competence element concerns public policy and is examined by the court of its own motion. There are three types: usurpation of function (exercising legislative or judicial power), usurpation of authority (an entirely incompetent body taking an act), and excess of authority (using another authority's powers).

Form: The administrative act must be performed in conformity with the procedural and formal rules prescribed by law. Failure to give reasons, denial of the right to be heard, and failure to obtain the opinion of advisory bodies are examples of formal defects.

Grounds: The existence and correctness of the legal and factual reasons upon which the administrative act is based are examined. If the reason stated by the administration when taking the act does not in fact exist or is not lawful, there is a defect in the grounds element.

Subject matter: The content of the administrative act must be lawful. The legal consequence produced by the act must be within the limits permitted by law. Imposing a penalty not provided for by law, or applying a disproportionate sanction, constitutes a defect in the subject-matter element.

Purpose: The administrative act must have been performed for a public-interest purpose. If the administration acts for personal, political, or other purposes, this is characterised as misuse of power (détournement de pouvoir) and constitutes a defect in the purpose element.

Element of IllegalityDefinitionExample
CompetenceAbsence of authority to perform the actA district governor (kaymakam) exercising a power vested in the governor (vali)
FormNon-compliance with procedural and formal rulesFailure to take a statement of defence in disciplinary proceedings
GroundsIllegality of the reasons and facts underlying the actAn act based on a record containing false statements
Subject matterIllegality of the content of the actImposition of a sanction not provided for by law
PurposePursuing an aim other than the public interestA transfer order motivated by personal hostility

What Are the Legal Effects of an Annulment Judgment?

An annulment judgment sets aside the challenged administrative act with retroactive effect (ex tunc); the act is deemed never to have been performed from the outset. The judgment affects not only the plaintiff but everyone in the same situation (erga omnes effect). The administration is obliged to comply with the annulment judgment within 30 days (Article 28(1) of İYUK).

The retroactive effect of the annulment judgment means that all legal consequences of the act from the date it was issued are extinguished. For example, if the act dismissing a civil servant from office is annulled, the civil servant is treated as having remained in service from the date of dismissal, and the personal rights relating to that period are paid.

The administration is obliged to give effect to the annulment judgment without delay. According to Article 28(1) of İYUK, this period is at most 30 days. If the administration fails to apply the annulment judgment or applies it late, the resulting damage may be claimed through a full-remedy action. Furthermore, public servants who fail to apply an annulment judgment may face criminal liability for abuse of office under Article 257 of the Turkish Criminal Code (Türk Ceza Kanunu — TCK).

An annulment judgment does not prevent the administration from taking a fresh act on the same matter; however, when taking the new act the administration must comply with the legal assessments set out in the reasoning of the annulment judgment. The administration cannot issue a new act containing the same illegality contrary to the annulment judgment.

An annulment judgment becomes final upon exhaustion of all appellate remedies or upon expiry of the time limit for seeking them. However, if a suspension of execution order has been granted, the administration must comply with that order without waiting for the annulment judgment to become final.

How Do Appeal and Cassation Procedures Work in Annulment Actions?

Against judgments rendered by an administrative court in annulment proceedings, an appeal (istinaf) may be lodged with the regional administrative court within 30 days of service of the judgment. Against judgments of regional administrative courts, an application for cassation (temyiz) may be made to the Council of State under certain conditions. The cassation period is also 30 days from service of the judgment.

The appeal procedure was introduced in administrative litigation in 2016. According to Article 45 of İYUK, decisions of administrative courts may be appealed to the regional administrative court. On appeal, the regional administrative court re-examines both legal and factual issues. However, the appeal avenue is closed in disputes falling below a certain monetary threshold [TO BE VERIFIED — the current monetary threshold should be checked].

The cassation procedure is regulated in Article 46 of İYUK. Certain decisions of regional administrative courts may be reviewed by the Council of State on cassation. On cassation review, the Council of State examines the decision only for compliance with the law; it does not re-examine the facts. The decisions subject to cassation are listed in Article 46 of İYUK.

Pursuing appellate remedies does not automatically stay execution of the decision. However, a suspension of execution may be requested from the relevant court. The conditions under Article 27 of İYUK must be satisfied for a suspension of execution order to be granted at the appeal or cassation stage.

Retrial (yargılamanın yenilenmesi) as an extraordinary remedy is regulated in Article 53 of İYUK. It may be sought against final annulment judgments on certain grounds, including the subsequent discovery of documents that affect the substance of the judgment and the establishment that a document underlying the judgment was forged.

What Should an Annulment Action Petition Contain?

An annulment action petition must contain the names, surnames, and addresses of the parties and their representatives if any, the subject and grounds of the action, the date of service of the act challenged, in tax cases the type and year of the tax, and the relief sought. The petition must satisfy the formal requirements prescribed in Article 3 of İYUK.

According to Article 3 of İYUK, petitions must include: the names and surnames or trade names and addresses of the parties and their representatives or agents if any; the subject, grounds and evidence of the action; the date of written notification of the administrative act challenged; in cases relating to taxes, duties, levies, and similar fiscal obligations, the type, year, amount of the tax or fiscal obligation concerned and the date and number of the notice of assessment served; and a summary of the relief sought.

Documents to be attached to the petition include a copy of the administrative act challenged, evidence of service or the date of becoming aware, a power of attorney if applicable, and, if suspension of execution is requested, the grounds therefor. If the petition does not comply with Articles 3 and 5 of İYUK, the court will allow 30 days for the petition to be re-submitted (Article 15(1)(d) of İYUK).

When filing the action, the application fee, the advance portion of the judgment fee, and an advance for postal expenses must be paid. Plaintiffs wishing to benefit from legal aid may apply for legal aid by documenting their inability to meet court costs.

Frequently Asked Questions

Below are answers to the most frequently asked questions about annulment actions.

This content is for general informational purposes only and does not constitute legal advice.

This article was prepared by Av. Mustafa MALGIR.

Last Updated: June 26, 2026
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