Non-Compete Clauses in Turkish Employment Contracts: When They Bind, How Long They Last, What Happens on Breach and When They Fall Away (TBK 396, 444-447)

Foreign investors who build a Turkish operation around a small number of key people ask the same question when one of those people hands in a resignation: does the non-compete clause in the contract actually work? Employees ask its mirror image when a competitor makes an offer. The Turkish Code of Obligations (Türk Borçlar Kanunu, TBK No. 6098) answers both in Articles 444 to 447, a compact regime that makes the post-employment non-compete (rekabet yasağı) enforceable, but only for employees who actually had access to something worth protecting, only within reasonable limits, and only for as long as the employer keeps its side of the bargain.

This guide follows the text of those provisions as in force in September 2026. It begins with the duty that applies while the employment lasts (Article 396), turns to the conditions of validity for the post-employment clause (Article 444), the limits of place, time and type of work and the two-year ceiling (Article 445), the consequences of breach and the role of penalties (Article 446), and the events that end the clause (Article 447). A table summarises the regime and a closing section sets out what employers and employees should do before the resignation letter arrives.

1. During Employment: The Duty of Loyalty in Article 396

The post-employment clause is often discussed as if it were the only restraint, but the Code imposes a stronger one for as long as the contract lasts. Article 396 requires the employee to perform the work with care and to protect the employer's legitimate interests in good faith. Within that duty, the employee may not, for the duration of the contract, perform work for a third party in return for consideration in breach of the duty of loyalty, and in particular may not compete with the employer. The employee may also not use for their own benefit or disclose to others the information obtained in the course of the work, and especially production and business secrets; that confidentiality obligation continues after the contract ends to the extent that protecting the employer's legitimate interests requires it.

Two consequences follow. First, an employee who starts trading through their own company while still employed, or who quietly diverts customers to a future employer, breaches Article 396 whether or not the contract contains a non-compete clause, and such conduct may also justify termination for just cause under the Labour Law. Second, the confidentiality limb of Article 396 outlasts the contract without any time limit other than the employer's continuing legitimate interest, which means that even an employee whose non-compete has expired or fallen away may not use the former employer's secrets. The non-compete adds to this base a prohibition on competing activity as such after the employment ends; it does not replace the protection of secrets.

2. The Conditions of Validity: Article 444

Article 444(1) allows an employee who has capacity to act to undertake towards the employer, in writing, that after the termination of the contract they will not compete with the employer in any manner, in particular by opening a competing business on their own account, working in another competing business or entering into any other kind of interest relationship with a competing business. Three requirements are packed into this sentence and the paragraph that follows it.

Writing. The undertaking must be in written form. A clause in a signed employment contract satisfies this; a non-compete mentioned in a handbook, an e-mail or a verbal assurance does not. Because the clause restricts the employee's constitutional freedom to work, courts read the form requirement strictly, and an unsigned or later-added clause is the first point tested in any enforcement action.

Access. Article 444(2) provides that the undertaking is valid only if the employment relationship gave the employee the opportunity to obtain information about the employer's customer base or production secrets, or about the work the employer performs. The test is access, not seniority or title. A regional sales manager who knows the customers and their terms has access; a warehouse supervisor or a receptionist ordinarily does not, whatever the contract says. Employers who copy the same non-compete into every contract obtain a clause that is enforceable against a handful of employees and void against the rest.

Significant harm. The same paragraph adds that the use of that information must be capable of causing the employer significant harm (önemli bir zarar). The requirement links the prohibition to a real commercial risk. Knowledge of customers who can be found in any directory, or of processes that are industry standard, does not create a risk of significant harm, and a clause resting on such knowledge fails even if the employee technically had access.

3. Place, Time and Type of Work: The Limits and the Two-Year Cap in Article 445

A clause that passes Article 444 must still be proportionate. Article 445(1) requires the prohibition to contain appropriate limits as to place, time and the type of work, so that it does not unfairly jeopardise the employee's economic future, and provides that its duration may not exceed two years except where special circumstances and conditions justify a longer period. The three limits are cumulative: a clause without a territorial limit, or covering every kind of work rather than the competing activity, or open-ended in time, is defective on its face.

The remedy for excess is not nullity. Article 445(2) empowers the court to restrict an excessive non-compete as to its scope or duration, assessing all the circumstances freely and taking into account in an equitable manner any counter-performance the employer may have undertaken. A five-year nationwide clause covering "any employment in the sector" is therefore likely to be cut back to two years, to the region in which the employee actually worked and to the competing activity, rather than struck out altogether. The reference to counter-performance explains a feature of Turkish practice: the Code does not make payment during the restricted period a condition of validity, but an employer that pays for the restriction has a much stronger position when the court decides how much of the clause to preserve.

4. Breach: Damages, Penalties and the Order to Stop (Article 446)

Article 446(1) provides that an employee who acts contrary to the non-compete must compensate all the harm the employer suffers as a result. Harm is proved under the general rules, and in practice it consists of lost profit on customers who followed the employee and the cost of the competitive damage caused by the disclosure of secrets. Because that harm is difficult to quantify, almost every Turkish non-compete contains a penalty, and Article 446(2) regulates it: where the prohibition is coupled with a penalty clause and nothing to the contrary has been agreed, the employee may free themselves from the prohibition by paying the penalty, but remains liable to compensate harm exceeding the penalty.

Two drafting points follow. First, the default rule turns the penalty into a price of release: an employee who pays it may compete. Employers who want the prohibition to survive payment must say so expressly in the clause. Second, the penalty is subject to the general rule in Article 182(3) that the judge reduces a penalty found to be excessive; an employee is not a merchant, so the commercial-law rule that prevents merchants from seeking a reduction does not apply. Penalties measured in several months' salary are routinely upheld; penalties measured in years are routinely reduced.

Article 446(3) adds the remedy employers value most and obtain least often. The employer may demand, in addition to the penalty and damages, that the breach itself be brought to an end, but only if this right was expressly reserved in writing and if the employer's violated or threatened interests and the employee's conduct justify it. A clause that is silent on the point leaves the employer with money claims only; a clause that reserves the right allows an application for an injunction ordering the employee to stop working for the competitor, which courts grant where the interests at stake are serious.

5. When the Clause Falls Away: Article 447

Article 447 identifies two situations in which the prohibition ends regardless of what the contract says. Under paragraph (1), it ends when it is established that the employer no longer has a real interest in maintaining it: the employer has left the market, abandoned the product line or otherwise ceased to be exposed to the competition the clause was designed to prevent.

Under paragraph (2), the prohibition also ends if the employer terminates the contract without a just reason, or if the employee terminates it for a reason attributable to the employer. This is the provision that decides most disputes. An employer that dismisses an employee without just cause, for example for redundancy or performance reasons that do not amount to just cause under the Labour Law, cannot then hold the employee to the non-compete. An employee who resigns because the employer failed to pay wages or otherwise gave just cause is likewise released. Conversely, an employee who resigns to join a competitor, or who is dismissed for just cause, remains bound. The way the relationship ends therefore determines whether the clause can be enforced at all, and the termination documents are the first evidence examined in any non-compete case.

6. The Regime at a Glance

7. What Employers and Employees Should Do

Employers. Draft the clause for the people it is meant for, not for the whole workforce; identify in the contract what the employee will have access to, so that Article 444(2) is documented rather than argued later. Set a territory that matches the employee's actual field, a duration of no more than two years and a definition of competing activity tied to the employer's real business. Reserve expressly the right to demand cessation of the breach, and state whether payment of the penalty releases the employee. Consider paying for the restricted period; it is not required, but it is what the court weighs first when deciding how much of the clause to keep. And before dismissing a key employee, remember Article 447(2): a termination without just cause releases the employee from the clause on the same day.

Employees. Read the clause for its three limits and for the release-by-penalty rule; a clause that lets you buy your freedom for a fixed sum may be a manageable cost of a better job. Check whether the way the contract ended has already released you: a dismissal without just cause, or a resignation for a reason attributable to the employer, ends the prohibition. Keep in mind that the confidentiality duty in Article 396 survives whatever happens to the non-compete, so a new employer who asks for the old employer's customer data is asking you to breach a duty that no release removes.

The Turkish non-compete is neither the unenforceable formality some employees assume nor the blanket protection some employers expect. It is a clause that works precisely when it is drafted narrowly, aimed at the employees who hold the information that matters, and enforced by an employer that ended the relationship correctly.

1. Confirm the clause is in writing and signed, and that the employee had access to customers, secrets or the business (TBK 444).
2. Measure the clause against place, time and type of work, and against the two-year ceiling (TBK 445); expect the court to trim rather than void it.
3. Establish how the contract ended; a termination without just cause by the employer, or for the employer's fault by the employee, releases the employee (TBK 447).
4. Quantify the claim: full damages, the agreed penalty and any harm above it; expect an excessive penalty to be reduced (TBK 446, 182).
5. Seek an order to stop the competition only if the clause expressly reserved that right (TBK 446(3)).

Frequently Asked Questions

Is a non-compete clause in a Turkish employment contract enforceable?

Yes, within limits. Under Article 444 of the Turkish Code of Obligations an employee with capacity to act may undertake in writing not to compete with the employer after the employment ends, but the undertaking is valid only if the employment gave the employee the opportunity to obtain information about the employer's customer base or production secrets or about the employer's business, and the use of that information could cause the employer significant harm. A clause imposed on an employee who never had such access does not bind.

How long can a non-compete last in Turkey?

Article 445 provides that the prohibition may not exceed two years unless special circumstances and conditions justify a longer period, and that it must contain appropriate limits as to place, time and the type of work so that it does not unfairly jeopardise the employee's economic future. A clause that is excessive in scope or duration is not automatically void: the court may limit it, taking into account all the circumstances and, in particular, any consideration the employer has promised in return.

Does the employer have to pay the employee for the non-compete period?

The Code does not make payment a condition of validity. Article 445(2) refers to a counter-performance by the employer as a factor the court weighs when deciding whether and how far to restrict an excessive clause, so a paid restriction is more likely to survive at its full scope than an unpaid one, but an unpaid clause that satisfies Articles 444 and 445 is enforceable.

What can the employer claim if the former employee breaches the clause?

Under Article 446 the employee must compensate all the harm the employer suffers as a result of the breach. If the clause provides a penalty and nothing to the contrary is agreed, the employee may free themselves from the prohibition by paying the penalty, but remains liable for harm exceeding it. The employer may also demand that the breach itself be stopped, but only if that right was expressly reserved in writing and the employer's violated or threatened interests and the employee's conduct justify it.

Can the court reduce the penalty written into the non-compete?

The penalty in a non-compete is a penalty clause governed by the general rules of the Code of Obligations, and Article 182(3) allows the judge to reduce a penalty the judge finds excessive. Employees are not merchants, so the commercial rule that bars merchants from seeking a reduction does not apply to them. In practice, penalties equal to several months' salary are common and penalties equal to years of salary are the ones that get reduced.

Does the clause still apply if I was dismissed?

It depends on who ended the contract and why. Under Article 447(2) the prohibition ends if the employer terminates the contract without a just reason, or if the employee terminates it for a reason attributable to the employer. An employee dismissed without just cause is therefore free to compete. An employee who resigns without such a reason, or who is dismissed for just cause, remains bound.

Am I free to prepare a competing business while still employed?

Not to compete. Article 396 obliges the employee, for the duration of the contract, to act in the employer's interest in good faith, not to work for a third party for consideration in breach of the duty of loyalty and, in particular, not to compete with the employer, and not to use or disclose confidential information such as production and business secrets, an obligation that continues after the contract ends to the extent necessary to protect the employer's legitimate interests. Preparatory steps that do not involve competing activity or using the employer's secrets are treated differently from active competition.