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İdare HukukuAv. Mustafa MALGIRJuly 31, 2026

Public Procurement Disputes — Complaint, Appeal and Public Procurement Authority Decisions

Public Procurement Disputes — Complaint, Appeal and Public Procurement Authority Decisions

Examine the complaint and appeal procedures under Public Procurement Law No. 4734 and actions before the administrative courts against decisions of the Public Procurement Authority. Learn about the routes of objection and the time limits in procurement law.

Public procurement comprises important administrative processes ensuring that the purchases of goods and services and construction works of the state and public bodies are carried out according to defined procedures and principles. Public Procurement Law No. 4734 governs the conduct of these processes within the framework of the principles of transparency, competition, equal treatment, reliability, confidentiality and public scrutiny. Since disputes arising in the procurement process directly affect tenderers' rights and interests, the legislature has provided an effective mechanism of objection and complaint. This article examines in detail the routes for resolving public procurement disputes, the complaint and appeal procedures, decisions of the Public Procurement Authority (KİK) and actions against those decisions before the administrative courts.

Fundamental Principles and Scope of the Public Procurement Law

Article 2 of Law No. 4734 sets out, with its scope and exceptions, the administrations within the general budget, special-budget administrations, provincial special administrations and municipalities, together with their affiliated and revolving-fund bodies, unions, public economic enterprises and the other institutions listed in the statute. Transparency, competition, equal treatment, reliability, confidentiality, public scrutiny, meeting needs on appropriate terms and in good time, and the efficient use of resources are the fundamental principles.

Direct procurement is not one of the tender procedures in Art. 18. Purchases made by that route, and the exception provisions of the Law, are not in every case subject to the Authority's complaint system; depending on the nature of the dispute, administrative, judicial or audit routes are distinguished.

Types of Dispute Arising in the Procurement Process

Disputes may arise at different stages of the public procurement process: before, during and after the tender. Disputes at each stage differ in legal character and are subject to different objection mechanisms.

  • Pre-tender disputes: allegations concerning the notice and the tender documents. Provisions of the technical specification, the administrative specification, the draft contract and other documents are subject to special application periods.
  • Tender evaluation disputes: may arise from matters such as qualification documents, the evaluation of tenders and explanations of abnormally low tenders.
  • Post-award disputes: may arise from matters such as the tenderer awarded the contract, the economically most advantageous tender, and the approval or annulment of the award decision.

Another dimension of these disputes is decisions on debarment and exclusion from tenders. Under Art. 58 of Law No. 4734 and Art. 26 of the Public Procurement Contracts Law No. 4735, decisions may be given debarring a party from participating in tenders. These are severe sanctions directly affecting firms' commercial activities and are subject to judicial review.

The Complaint — Application to the Contracting Authority

Candidates, tenderers and prospective tenderers complain to the contracting authority, before the contract is signed, within five days in tenders under Arts. 21/b and 21/c and within ten days in other cases, running from the day following the day on which they became aware, or ought to have become aware, of the unlawful act or decision. An application concerning the notice runs from the date of first publication; one concerning the tender documents runs from the date the documents were obtained, and in any event must be made up to three working days before the tender or the final application date.

No Authority application fee is paid for a complaint to the contracting authority. The petition must clearly identify the applicant, the tender, the unlawfulness and the evidence. The authority takes a reasoned decision within ten days; the decision and the contract standstill periods are applied under Art. 55.

Appeal — Application to the Public Procurement Authority

Against the contracting authority's decision, or where no decision is taken within the ten-day period, an appeal is made to the Public Procurement Authority within the period in Art. 56 of Law No. 4734. The general period is ten days; there are five-day periods for tenders under Arts. 21/b–c and in the special cases concerning annulment of a tender. The application fee is updated each year according to the estimated cost band; the official amount at the date of application governs. The Authority's review is a special legality review confined to the applicant's allegations and the matters identified in the contracting authority's decision on the complaint. The Board may decide on corrective action, annulment of the tender, or rejection of the application; the period for decision is subject to the short or general period in the Law according to the type of tender and whether the application concerns annulment.

The Effect of an Appeal on the Procurement Process

A complaint is made before the contract is signed. The contracting authority may as a rule not sign the contract before notifying its decision on the complaint and before the appeal period has expired; and, where an application has been made to the Authority, before the Board's final decision is notified. The authority need not additionally give a decision that “the contract may not be signed”. The urgency and standstill exceptions in the Law are reserved.

Actions Against Authority Decisions Before the Administrative Courts

An action against a Board decision is brought before the Ankara administrative court within thirty days of service, and the expedited procedure in İYUK Art. 20/A applies. Under that procedure an application under İYUK Art. 11 does not apply, and the periods for defence and completion of the file are shortened; an appeal on points of law against the first-instance decision is brought within fifteen days of service. The ordinary appellate scheme does not apply.

A stay of execution temporarily suspends, on its conditions, the execution of the Board decision challenged; whether the contract had already been signed and the effect of the decision on the tender are assessed on the facts.

Debarment Decisions and Routes of Objection

Debarment is imposed for between one and two years according to the nature of the conduct, by the competent Ministry or contracting authority, and is published in the Official Gazette. The extension to shareholders and partnerships of legal persons is subject to different criteria for capital companies and partnerships under Art. 58 of Law No. 4734; it cannot be explained merely by a fifty per cent shareholding. An action against a debarment decision is not the same as an action under Art. 20/A against an act in the procurement process; jurisdiction, venue, time limits and avenues of appeal are determined by the legal character of the decision.

Time Limits in Public Procurement Disputes

The principal periods are: complaint to the contracting authority, five days for tenders under Arts. 21/b–c and ten days for others; the authority's decision period, ten days; application to the Authority, a general period of ten days with the special five-day cases in the statute; an action against a Board decision, thirty days; and an appeal on points of law against an expedited judgment, fifteen days. For applications concerning the notice and the documents, the limit of three working days before the tender or the final application date applies in addition. Since these are forfeiture periods, they must be calculated day by day according to the particular tender procedure and the notification.

The Scope of Review in a Public Procurement Dispute

Under Art. 56 of Law No. 4734 the Board reviews the applicant's allegations and the matters identified in the contracting authority's decision on the complaint. The scope of the application, the date on which the unlawfulness was noticed and whether it was first raised with the contracting authority are assessed together. No categorical conclusion is drawn as to an abnormally low tender, a document provision restricting competition or a debarment decision; the relevant statute, secondary legislation, the tender documents and the specific reasoning are examined.

Points to Bear in Mind in Public Procurement Disputes

There are many points to bear in mind in conducting a successful objection process in public procurement disputes. They may relate both to procedure and to substance.

First, the time limits must be scrupulously observed. The periods in public procurement disputes are very short and are forfeiture periods. Applications not made in time are dismissed on procedural grounds and lead to loss of rights. Secondly, a complaint to the contracting authority is the mandatory first stage. An application made directly to the Authority is dismissed on procedural grounds.

Thirdly, allegations of unlawfulness must be supported by concrete evidence. Abstract and general allegations may lead to rejection of the application. Fourthly, the appeal application fee must be paid. Failure to pay it results in the application being dismissed on procedural grounds.

Fifthly, in applications concerning the notice and the documents, both the five- or ten-day period running from the date of knowledge and the limit of three working days before the tender or the final application date must be observed. Whether an out-of-time complaint about the documents may be raised at a later stage is determined by the nature of the allegation and the statutory application regime. Sixthly, whether a stay of execution is needed in an action against a Board decision is assessed according to the concrete risk and the conditions in İYUK Art. 27; it is not a mandatory request in every action.

Finally, since public procurement disputes involve technical and complex matters, it is of considerable importance that the process be conducted with the assistance of a specialist attorney. Lying at the intersection of several branches of law — procurement law, administrative law, public finance and commercial law — the field requires a multidisciplinary approach.

This content is for general information purposes and does not constitute legal advice. In specific disputes it is recommended that professional legal support be obtained from an attorney.

Frequently Asked Questions

Is direct procurement a tender procedure?

No; it is not among the tender procedures listed in Art. 18.

How many days is a complaint to the contracting authority?

Five days in tenders under Arts. 21/b–c and ten days in others.

Is there an application fee for a complaint to the contracting authority?

No; the fee is charged on an appeal to the Authority.

Is there an appellate stage against a Board decision?

Under İYUK Art. 20/A a direct fifteen-day appeal on points of law lies against the first-instance decision.

This article was prepared by Av. Mustafa MALGIR.

Last Updated: September 5, 2026
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