Learn when an employee can file a reinstatement lawsuit in Turkey, what counts as unfair dismissal, the 30-employee and 6-month thresholds, mandatory mediation deadlines, employer obligations, and the compensation risks under Turkish labor law.
Unfair Dismissal in Turkey
Unfair dismissal in Turkey is mainly handled through the job security provisions of Labor Law No. 4857 rather than through a single statutory label called “unfair dismissal.” In practical terms, the issue arises when an employer terminates an indefinite-term employment contract without a valid reason, or fails to follow the legally required dismissal procedure, and the employee then seeks reinstatement. Articles 18, 19, 20, and 21 of Labor Law No. 4857 form the core of this regime, while Article 3 of Labor Courts Law No. 7036 makes mandatory mediation a procedural prerequisite before a reinstatement lawsuit can be filed.
For employees, this means that not every dismissal automatically becomes a reinstatement case. Turkish law protects certain employees more strongly than others, and the right to challenge dismissal through reinstatement depends on statutory thresholds such as the type of contract, workplace size, and seniority. For employers, it means that a dismissal cannot safely be treated as a simple HR action. A weak reason, an unclear termination letter, or the failure to obtain the employee’s defense in performance or conduct cases can all turn a dismissal into an invalid termination dispute.
This article explains, in a practical and SEO-focused way, when an employee in Turkey can file a reinstatement lawsuit, what counts as unfair dismissal under Turkish labor law, which employees are covered by the job security regime, what deadlines apply, what the employer must prove, and what happens if the court finds the dismissal invalid.
1. What does “unfair dismissal” mean under Turkish law?
Turkish labor legislation does not build the system around a separate headline term like some other jurisdictions do. Instead, the legal question is whether the employer terminated the employment contract with a valid reason and in the correct procedure. Article 18 states that, in covered workplaces, an employer who terminates an employee’s indefinite-term employment contract must rely on a valid reason arising from the employee’s competence, conduct, or the requirements of the enterprise, workplace, or work itself. If that does not happen, the dismissal may be treated as invalid and become the basis of a reinstatement claim.
That is why, in Turkish practice, “unfair dismissal” is best understood as a dismissal that fails the substantive validity test or the procedural legality test under Articles 18 to 21. A dismissal may be unfair because the stated reason is not legally valid, because the real reason is one of the prohibited grounds listed in Article 18, or because the employer did not comply with the written-notice and defense requirements of Article 19.
2. Which employees can file a reinstatement lawsuit in Turkey?
Not every employee can bring a reinstatement case. Article 18 requires several conditions to be met. First, the employee must be working under an indefinite-term employment contract. Second, the employee must have at least six months of seniority. Third, the workplace must employ 30 or more employees. The statute also states that for underground workers, the six-month seniority requirement does not apply.
The law also explains how those thresholds are calculated. For the six-month seniority test, the employee’s service across the same employer’s one or more workplaces is combined. For the 30-employee threshold, if the employer has more than one workplace in the same line of business, the total number of employees across those workplaces is taken into account. This is an important point because employers sometimes focus only on the headcount at a single site, while the law looks more broadly in the situations described in Article 18.
There are also statutory exclusions. Article 18 states that the provisions on job security do not apply to top-level employer representatives who manage the entire enterprise and their assistants, or to workplace managers who both manage the whole workplace and have authority to hire and dismiss employees. In other words, some senior executive roles fall outside the reinstatement regime even if other thresholds are satisfied.
3. Which dismissals are not considered valid under Article 18?
Article 18 does more than say a valid reason is required. It also gives examples of matters that do not amount to valid dismissal grounds. These include union membership, participation in union activities outside working hours or during working hours with the employer’s permission, acting as a workplace union representative, applying to administrative or judicial authorities to pursue rights or perform legal obligations, and dismissals based on race, color, sex, marital status, family responsibilities, pregnancy, birth, religion, political views, and similar reasons.
The same article also states that absence during the periods in which female employees may not lawfully work under Article 74, and temporary absence due to illness or accident during the statutory waiting period referred to in Article 25/I(b), do not constitute valid dismissal reasons. These examples matter because they show that Turkish labor law is not neutral about the employer’s motive. Some reasons are legally insufficient even if the employer attempts to present them as business decisions.
For that reason, an employee may have a reinstatement claim not only when the employer gives no real reason, but also when the employer gives a reason that Turkish law specifically treats as non-valid. In practice, this is often where unfair dismissal allegations become strongest.
4. What procedural rules must the employer follow?
Even where the employer believes a valid reason exists, Article 19 imposes strict procedural duties. The employer must make the termination notice in writing and must state the dismissal reason clearly and definitively. This is not a mere formality. A vague or generic dismissal letter can weaken the employer’s position because Turkish law requires the reason to be disclosed with clarity.
Article 19 adds another major protection: where the intended dismissal relates to the employee’s conduct or performance, the employer generally cannot terminate the indefinite-term employment contract without first obtaining the employee’s defense. The only statutory exception noted there is the employer’s immediate termination right under Article 25/II. This means that many performance-based dismissals become vulnerable not because performance can never justify termination, but because the employer fails to follow the required sequence.
So, under Turkish law, a dismissal can become “unfair” even if the employer thinks the underlying problem is real. If the termination letter is not written properly, if the reason is not stated clearly, or if the employee’s defense is not taken where required, the procedural defect itself can become decisive in a reinstatement dispute.
5. When must the employee apply for reinstatement?
Timing is one of the most important parts of the system. Under Article 20, an employee whose contract has been terminated must apply, within one month from the date the termination notice is served, to mandatory mediation with a reinstatement request if the claim is that no reason was given or that the stated reason was not valid. The same structure is repeated in the Ministry’s official FAQ.
This one-month period is critical. If the employee misses it, the reinstatement route can be lost even where the dismissal appears substantively weak. In Turkish labor practice, many employees focus first on severance or notice pay, but reinstatement has its own short and strict procedural clock.
6. Is mediation mandatory before filing a reinstatement lawsuit?
Yes. Labor Courts Law No. 7036 makes mediation a condition of action for reinstatement claims. Article 3 states that in lawsuits concerning employee or employer receivables and compensation, and in lawsuits filed with a reinstatement request, prior application to a mediator is mandatory. If a lawsuit is filed without mediation, the case is procedurally dismissed.
Article 20 of Labor Law No. 4857 now directly reflects that mediation-first structure. It states that the employee must go to mediation within one month, and if no settlement is reached, a lawsuit may be filed in the labor court within two weeks from the date of the final mediation record. If the parties agree, the matter may even be referred to a private arbitrator instead of the labor court within the same period.
This means the reinstatement process in Turkey has two distinct timing stages: first, the one-month mediation application period after dismissal; second, the two-week lawsuit period after the mediation ends without settlement. Both periods matter.
7. Who has the burden of proof?
Article 20 clearly places the burden of proving that the dismissal was based on a valid reason on the employer. If the employee argues that the real reason was something else, the employee must prove that separate allegation. This burden-of-proof rule is one of the strongest legal protections in unfair dismissal disputes in Turkey.
The practical result is important. The employer cannot simply rely on broad statements such as “performance insufficiency” or “operational necessity” without being able to substantiate them. Because the employer carries the primary burden, dismissal files, warnings, performance records, restructuring documents, and internal decision records become highly significant in litigation and even at the mediation stage.
8. How quickly does the court decide reinstatement cases?
Article 20 states that the case must be concluded expeditiously, and if the judgment is appealed, the regional appellate court must decide expeditiously and finally. The Ministry’s FAQ repeats that reinstatement cases are to be resolved urgently and that the regional court’s decision is final.
This reflects the nature of reinstatement litigation. The point is not only to compensate the employee later, but to determine relatively quickly whether the dismissal was valid and what consequences should follow. In theory and in statutory design, the system aims for speed because the employee’s employment status is directly at stake.
9. What happens if the court finds the dismissal invalid?
Article 21 sets out the consequences of an invalid dismissal. If the court or private arbitrator determines that the employer did not show a valid reason, the employer must reinstate the employee within one month. If the employer does not do so after the employee applies, the employer must pay compensation equal to at least four months’ wages and up to eight months’ wages.
The same article also states that the employee must be paid up to four months’ wages and other accrued rights for the idle period until the decision becomes final. In addition, the statute says that the court or arbitrator must determine the amounts of the reinstatement compensation and the idle-period receivables based on the employee’s wage on the date of the lawsuit.
This is one reason why unfair dismissal in Turkey can become expensive for employers. The financial exposure is not limited to a symbolic payment. Depending on the facts, the employer may face idle-period wages, reinstatement compensation, and separate notice-related consequences as well.
10. What must the employee do after winning?
Winning the case is not the final step. Article 21 states that the employee must apply to the employer within ten business days from service of the final court or arbitral decision in order to start work again. If the employee does not apply within that period, the dismissal is deemed valid and the employer is responsible only for the normal legal consequences of that original dismissal. The Ministry’s FAQ states the same rule.
This is a crucial but frequently missed stage. A reinstatement judgment alone does not automatically put the employee back into the workplace. Turkish law requires an active application by the employee within the ten-business-day period. If that application is not made in time, one of the biggest advantages of the reinstatement system can be lost.
11. What if the employer still refuses to reinstate?
If the employee applies on time after a final reinstatement decision, Article 21 requires the employer to reinstate the employee within one month. If the employer does not, the employer must pay the 4-to-8-month compensation already determined in the judgment, and the employee also remains entitled to the up-to-four-month idle-period wages and other rights. The Ministry’s FAQ confirms this sequence.
This shows that Turkish reinstatement law is structured as a real choice with consequences: either the employer reinstates the employee, or the employer pays the statutory financial outcome of refusing to do so. The system is not limited to a declaratory finding that the dismissal was wrong.
12. What happens to notice pay and severance pay if the employee is reinstated?
Article 21 addresses this as well. If the employee is reinstated, severance pay and any advance-paid notice-period wages are deducted from the amounts payable under the reinstatement judgment. But if the employee is not reinstated and no notice period was given or no notice-period wage was paid in advance, those amounts must be paid separately. The Ministry’s FAQ reflects the same framework.
So, reinstatement cases in Turkey are closely connected with ordinary termination claims such as notice pay and severance pay. The legal system tries to prevent double recovery where the employee actually returns to work, but it also preserves separate notice-related rights where the employer does not reinstate.
13. Can workplace changes also lead to reinstatement litigation?
Yes, in some cases. Article 22 states that the employer may make a substantial change in working conditions only by notifying the employee in writing. If the change is not made in writing, or if the employee does not accept it in writing within six business days, the change does not bind the employee. If the employee rejects the change proposal, the employer may terminate only by explaining in writing that the change is based on a valid reason or that another valid reason exists, and by complying with the notice period. The employee may then bring a claim under Articles 17 to 21.
This means unfair dismissal disputes in Turkey do not arise only from direct “you are fired” decisions. They can also arise where the employer tries to impose a major workplace change, the employee refuses, and the employer then terminates the contract without properly satisfying the validity and procedure rules.
14. Are collective redundancies exempt from reinstatement rules?
No. Article 29 contains an important safeguard. It states that the employer cannot use collective redundancy provisions in order to prevent the application of Articles 18, 19, 20, and 21. If that happens, the employee may still sue under those job security provisions.
This is significant because mass dismissals are sometimes framed as purely economic or organizational events. Turkish labor law does recognize collective redundancy rules, but it does not allow the collective dismissal mechanism to become a tool for evading individual job-security rights.
15. Common employer mistakes in unfair dismissal cases
The first common mistake is assuming that any business explanation automatically counts as a valid reason. Under Article 18, validity must still fit the statutory framework, and the employer bears the burden of proof. The second common mistake is procedural: using vague dismissal letters, failing to state the reason clearly, or not taking the employee’s defense before conduct or performance dismissal. The third is timing-related: assuming that paying notice wages ends the matter, even though Article 17 expressly says that paying notice in advance does not block the application of Articles 18 to 21.
A further mistake is ignoring eligibility thresholds. Employers sometimes assume a single-site headcount controls, even though Article 18 may require combining employees across the same employer’s workplaces in the same line of business. They may also overlook that the employee’s six-month seniority is combined across the same employer’s workplaces.
16. Practical checklist: when can an employee file a reinstatement lawsuit?
An employee in Turkey can typically file a reinstatement lawsuit if all of the following are present: the contract is indefinite-term; the employee has at least six months’ seniority unless the underground-work exception applies; the workplace falls within the 30-employee threshold under Article 18; the employee is not in one of the excluded top-management categories; the dismissal lacks a valid reason or violates Article 19 procedure; the employee applies to mandatory mediation within one month from service of the dismissal notice; and, if mediation fails, the employee files the lawsuit within two weeks from the final mediation record.
That is the core legal structure. In simpler terms, unfair dismissal in Turkey becomes a reinstatement case only when the employee is inside the statutory job-security regime and also acts within the strict procedural deadlines.
Conclusion
Unfair dismissal in Turkey is not assessed through broad fairness language alone. It is evaluated through a detailed statutory model built around valid reason, written and reasoned notice, defense rights, mandatory mediation, and reinstatement consequences. A covered employee can file a reinstatement lawsuit when the dismissal of an indefinite-term contract is not supported by a valid reason, or when the employer fails to follow the procedure required by Articles 18 and 19, provided the employee meets the seniority and headcount thresholds and acts within the one-month and two-week deadlines.
For employees, the biggest practical risks are missing the one-month mediation deadline after dismissal and missing the ten-business-day application deadline after a final reinstatement decision. For employers, the biggest risks are giving a weak dismissal reason, overlooking prohibited grounds, failing to obtain the employee’s defense in conduct or performance cases, and assuming that notice pay alone cures an invalid termination. Under Turkish labor law, reinstatement litigation is driven as much by procedure and timing as by the reason for dismissal itself.
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