A detailed legal guide to lawful dismissal procedures in HR management in Turkey, covering notice termination, valid reason dismissal, summary dismissal, written notice, employee defense rights, mediation, reinstatement risk, and collective layoffs.
Dismissal is one of the most sensitive decisions an employer can make. In HR practice, it is often treated as the last step in a difficult employment relationship. In legal practice, however, dismissal is not the end of a process but the point at which the employer’s entire documentation, classification, timing, and procedure are tested. In Turkey, lawful dismissal procedures in HR management are mainly governed by Labour Act No. 4857. The statutory framework distinguishes between ordinary notice termination, valid-reason termination in job-security cases, summary termination for just cause, dismissal linked to proposed changes in working conditions, and collective termination procedures. Because different rules apply to different categories of dismissal, the first legal question is not whether the employer wants to terminate, but what type of termination is actually being made. (Natlex)
This distinction matters because Turkish law does not allow employers to solve every employment problem with the same template. A performance issue, a misconduct case, a restructuring decision, and a refusal to accept a proposed role change may all end in dismissal, but they do not follow the same legal route. A dismissal that is substantively understandable from a business perspective may still be unlawful if the employer uses the wrong legal ground, skips the defense stage, ignores notice requirements, or fails to document the reason in writing. For HR departments, lawful dismissal is therefore not only about the final letter. It is about choosing the correct statutory path and following it precisely. (Natlex)
The basic dismissal map under Turkish labour law
Article 17 of Labour Act No. 4857 regulates ordinary termination of indefinite-term continual employment contracts through notice periods. Article 18 creates the valid-reason model for employees who fall within the job-security regime. Article 19 requires written notice and, in conduct- and performance-based dismissals, a prior opportunity for the employee to defend himself or herself. Article 20 gives the employee the right to challenge the dismissal within one month and places the burden of proving a valid reason on the employer. Article 21 sets out reinstatement-related consequences if the termination is found invalid. Article 22 deals with proposed changes in working conditions and explains when refusal of a proposed change may lead to termination. Article 25 governs summary termination without notice for just cause, while Article 26 imposes a short exercise period for terminations based on immoral, dishonourable, or malicious conduct. Article 29 adds a separate procedure for collective dismissals. (Natlex)
For HR management, these provisions create a practical hierarchy. First, determine whether the employee is covered by the job-security rules of Article 18. Second, determine whether the issue is a valid-reason case or a just-cause case. Third, determine whether any proposed change in role, location, or conditions should be handled under Article 22 instead of being disguised as a standard dismissal. Fourth, check whether the matter is individual or collective, because collective terminations trigger a separate notification regime under Article 29. The most common dismissal errors arise when employers collapse these distinct legal paths into one vague internal process. (Natlex)
Notice termination under Article 17
Article 17 sets the minimum statutory notice periods for indefinite-term continual employment contracts. The periods rise according to seniority and, in the English text of the Act, are two weeks for service under six months, four weeks for service from six months to under one and a half years, six weeks for service from one and a half years to under three years, and eight weeks for service over three years. The same article states that these are minimum periods and may be increased by agreement, and that the party who does not comply with the notice requirement must pay compensation corresponding to the notice period. It also allows the employer to terminate immediately by paying the wages corresponding to the notice period in advance. (Natlex)
A critical point for HR is that notice pay is not a substitute for legality where Articles 18 to 21 apply. Article 17 expressly states that the employer’s failure to observe notice or its use of advance notice pay does not preclude the application of Articles 18, 19, 20, and 21. In other words, an employer may pay in lieu of notice and still lose a reinstatement dispute if the dismissal lacked a valid reason or if the correct procedure was not followed. HR teams that assume “we paid notice, so the dismissal is safe” are misunderstanding the structure of Turkish labour law. (Natlex)
Article 17 also matters for employees outside the core job-security regime. The same provision says that where employees who fall outside Articles 18 to 21 have their contracts ended through abusive exercise of the right to terminate, they are entitled to compensation equal to three times the wages for the term of notice, and, if notice itself was not observed, they may also receive additional notice pay. This is important for HR because it shows that even where reinstatement rules do not apply, termination power is not unlimited. The employer still needs a defensible and non-abusive approach. (Natlex)
Valid reason dismissal under Article 18
Article 18 is the center of lawful dismissal procedures in HR management for ordinary job-security cases. It states that an employer terminating an employee engaged for an indefinite period, employed in an establishment with thirty or more workers, and having at least six months of seniority must rely on a valid reason connected with the employee’s capacity or conduct, or based on the operational requirements of the establishment or service. The same provision therefore creates three broad valid-reason categories: capacity, conduct, and operational necessity. It also makes clear that the protection applies only if the threshold conditions are met. (Natlex)
This threshold analysis is essential for HR departments. If the workplace has fewer than thirty employees, or if the employee has not completed six months of seniority, the Articles 18 to 21 reinstatement structure may not apply in the same way. The same article also states that seniority is calculated by taking into account the employee’s periods of work in one or different establishments of the same employer, and that if the employer has more than one establishment in the same line of business, the total employee count is considered across those establishments. That means HR should not make threshold decisions using a narrow single-site view if the statute requires a broader employer-based calculation. (Natlex)
Article 18 also identifies categories that do not constitute a valid reason for termination. The English text expressly lists union membership or participation in union activities, acting or seeking office as a union representative, filing complaints or participating in proceedings against the employer involving alleged legal violations, and reasons such as race, colour, sex, marital status, family responsibilities, pregnancy, religion, political opinion, national extraction, or social origin. It also excludes absence during protected maternity leave and certain temporary absences due to illness or accident within the waiting period recognized by the Act. For HR practice, this means dismissal files should be checked not only for what reason is given, but also for whether the surrounding facts suggest the real motive may fall within a prohibited zone. (Natlex)
Written termination and the employee’s right of defense
Article 19 creates one of the most important procedural safeguards in Turkish dismissal law. It requires the employer’s notice of termination to be in writing and to state the reason for termination clearly and precisely. It also states that an employee engaged under an open-ended contract cannot be dismissed for reasons related to conduct or performance before being given an opportunity to defend himself or herself against the allegations. The statute separately reserves the employer’s right to immediate termination under Article 25/II for serious misconduct or malicious or immoral behaviour, but ordinary conduct and performance dismissals remain subject to the defense requirement. (Natlex)
From an HR perspective, Article 19 means that vague dismissal language is dangerous. A termination letter that merely states “loss of trust,” “company decision,” or “insufficient fit” may not satisfy the requirement that the reason be clear and precise. The defense stage is equally important. In practice, employers often rush to a final decision and then seek a short formal explanation from the employee afterward. That is backwards. In a conduct- or performance-based dismissal, the opportunity to defend should come before the final termination decision is issued. Otherwise, the employer risks a procedural defect even where some substantive concern existed. (Natlex)
Burden of proof, mediation, and reinstatement risk
Article 20 provides that an employee who claims no reason was given for dismissal, or that the stated reason was not valid, may challenge the termination before the labour court within one month of receiving the notice. The same article places the burden of proving that the termination was based on a valid reason on the employer, unless the employee claims that the real reason was different from the one presented by the employer. This burden-of-proof rule is the reason HR documentation matters so much in practice. A manager’s internal confidence is not evidence. The employer must be able to prove the dismissal ground with records, chronology, and a coherent statutory classification. (Natlex)
There is also an important pre-court step. According to the Ministry of Justice’s English-language overview of the Turkish justice system, it is obligatory in labour disputes to apply to a mediator before filing a lawsuit. For HR departments, this matters because dismissal disputes are usually tested first in mandatory mediation, not only in court. An employer that enters mediation with a weak file, unclear reasoning, or contradictory internal records often loses leverage early. Lawful dismissal procedures therefore require not only correct termination mechanics, but also preparation for the dispute-resolution route that follows.
Article 21 then explains the consequences of termination without a valid reason. If the court or arbitrator concludes that the dismissal is unjustified because no valid reason was given or the alleged reason is invalid, the employer must re-engage the employee within one month. If, after the employee applies, the employer does not re-engage the employee, compensation of not less than four months’ wages and not more than eight months’ wages becomes payable. The employee is also entitled to up to four months’ wages and other entitlements for the period not worked until the final judgment. Article 21 further states that if the employee does not apply within ten working days after the finalized judgment is communicated, the termination is deemed valid and the employer is liable only for the ordinary legal consequences of that termination. (Natlex)
These consequences explain why a defective dismissal can become expensive quickly. The risk is not limited to notice pay. It can include reinstatement pressure, reinstatement compensation, idle-period wages, and the strategic costs of a failed HR process. For that reason, an employer should not ask only whether it can terminate. It should ask whether the termination file would survive Article 20 and Article 21 scrutiny if challenged. (Natlex)
Summary dismissal for just cause under Article 25
Article 25 gives the employer a separate right to break the contract, whether definite or indefinite, before expiry or without observing notice periods, in the cases listed by the statute. The English text groups these cases under health reasons, immoral, dishonourable or malicious conduct or similar behaviour, force majeure, and detention or arrest causing absence beyond the Article 17 notice period. The provision is legally narrower than ordinary valid-reason termination and should not be used as a catch-all route whenever management is frustrated. (Natlex)
In practice, the biggest HR mistake with Article 25 is overclassification. Not every poor performance case is “refusal to perform duties.” Not every workplace conflict is “dishonourable behaviour.” Not every mismatch between expectations and output is just cause. Article 25 is designed for more serious and specific situations, and if the employer misuses it, the dismissal may be recharacterized as an invalid termination. HR teams should therefore use Article 25 only after matching the facts carefully to the statutory text, not merely because the employer wants to avoid notice or severance-related consequences. (Natlex)
Article 26 imposes a strict exercise period for terminations based on immoral, dishonourable, or malicious conduct. The right must be exercised within six working days from learning of the facts and, in any event, within one year from the commission of the act, unless the employee obtained a material gain from it. This timing rule is crucial. Even a strong Article 25 ground can be weakened if HR waits too long after learning of the facts. Delay can create the impression that the employer tolerated the conduct and later reclassified it opportunistically. (Natlex)
Dismissal after refusal of a proposed change is a separate route
Article 22 of the Labour Act is one of the most overlooked dismissal provisions in HR practice. It states that any change by the employer in working conditions based on the employment contract, annexed rules, similar sources, or workplace practices may be made only after written notice. Changes that do not follow that procedure and are not accepted by the employee in writing within six working days do not bind the employee. If the employee refuses the proposed change within that period, the employer may terminate the contract by respecting the notice period, provided the employer states in writing that the proposed change is based on a valid reason or that there is another valid reason for termination. (Natlex)
For HR management, this means that substantial changes in role, location, shift pattern, or other important terms should not be disguised as ordinary managerial instructions. If the real dispute is that the employee does not accept a proposed material change, Article 22 may be the correct procedural route. Skipping Article 22 and moving directly to dismissal can create unnecessary litigation risk, especially where the employer cannot later show written notice, written refusal, or a valid reason linked to the proposed change. (Natlex)
Collective dismissal procedures under Article 29
When termination is driven by economic, technological, structural, or similar reasons and affects multiple employees, Article 29 adds another layer of legality. The article states that when the employer contemplates collective terminations for such reasons, it must provide written information at least thirty days before the intended layoff to union shop stewards, the relevant regional labour directorate, and the Public Employment Office. The article also defines when a dismissal wave qualifies as collective by reference to workforce size and number of affected employees. (Natlex)
This is important because HR should never assume that a series of individual dismissal letters automatically satisfies a collective restructuring process. Where the Article 29 thresholds are met, the employer must follow the collective-dismissal procedure in addition to handling individual employment consequences correctly. A headcount-reduction project that ignores the collective route may produce administrative and litigation exposure even if the business rationale is real. (Natlex)
Who is outside the classic job-security framework
Article 18 also identifies a narrow group of employer-side senior managers who fall outside parts of the Articles 18, 19, and 21 framework. According to the English text, Article 18, Articles 19 and 21, and the last subsection of Article 25 do not apply to the employer’s representative and assistants authorized to manage the entire enterprise, and to the employer’s representative managing the entire establishment who is also authorized to recruit and terminate employees. This exception should be applied carefully. It is not a broad excuse to classify ordinary managers as outside job security. HR should make the classification only where the statutory authority pattern genuinely exists. (Natlex)
Common HR mistakes in dismissal procedure
The first recurring mistake is using the wrong legal ground. Employers often choose Article 25 language because it feels stronger, even where the facts fit only a valid-reason dismissal under Article 18. The second is poor drafting of the termination notice. Article 19 requires a clear and precise reason, yet many dismissal letters remain vague. The third is skipping or trivializing the employee’s right of defense in conduct- and performance-based dismissals. The fourth is assuming notice pay cures every defect, even though Article 17 expressly preserves the application of Articles 18 to 21. The fifth is ignoring Article 22 when the real issue is refusal of a proposed material change. The sixth is delay in exercising an Article 25 right despite Article 26’s short timing rule. The seventh is forgetting Article 29 when a restructuring becomes collective in scale. (Natlex)
Another major error is weak recordkeeping before dismissal. Because Article 20 places the burden of proof on the employer, HR should assume from the beginning that any dismissal file may later be reviewed by a mediator, a labour court, and possibly an appellate court. A lawful dismissal process is therefore built on written warnings where appropriate, documented meetings, internal chronology, proof of notice service, proof of defense opportunity, and consistency between the factual record and the legal classification used in the termination letter. (Natlex)
Conclusion
In Turkey, lawful dismissal procedures in HR management require more than a business decision to end an employment relationship. Labour Act No. 4857 creates distinct procedural routes for notice termination, valid-reason termination, summary termination for just cause, dismissal after refusal of a proposed change, and collective dismissals. Article 17 regulates notice and notice pay, but does not eliminate the need for a valid reason where job-security rules apply. Article 18 limits dismissal in covered cases to valid reasons linked to capacity, conduct, or operational requirements and excludes a range of protected motives. Article 19 requires written notice and, for conduct- and performance-based dismissals, a prior defense opportunity. Article 20 puts the burden of proof on the employer, while Article 21 creates reinstatement and compensation risk if the dismissal is invalid. Article 22 governs material changes in working conditions, Article 25 governs just-cause termination, Article 26 limits the time for exercising certain summary rights, and Article 29 governs collective dismissals. (Natlex)
For HR teams, the practical conclusion is clear. The lawfulness of dismissal depends on classification, timing, writing, defense, proof, and procedural discipline. Employers that treat dismissal as a short administrative step usually create avoidable risk. Employers that treat it as a structured legal process are in a much stronger position both to terminate lawfully and to defend the decision later in mediation or litigation.
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