Every commercial contract in Turkey exists within a statutory framework that the parties cannot fully displace by agreement — the Turkish Code of Obligations (Türk Borçlar Kanunu, Law No. 6098, TBK) and the Turkish Commercial Code (Türk Ticaret Kanunu, Law No. 6102, TTK) establish mandatory rules that apply regardless of what the contract says, and default rules that fill gaps where the contract is silent. A contract lawyer in Turkey must understand both the client's commercial objective and the way Turkish law will read the agreement when it is tested in a dispute — because the interpretation a Turkish commercial court applies to ambiguous language, the mandatory protections a Turkish labor court applies to employment clauses, and the enforcement mechanism a Turkish execution office applies to a breach of contract claim are each shaped by statutory frameworks that operate independently of the parties' intentions. The practical consequence is that contract drafting and review in Turkey require a simultaneous analysis of what the contract says, what Turkish mandatory law requires regardless of what the contract says, and how the contract will perform in the procedural context of a Turkish enforcement action. The Turkish Code of Obligations is accessible at Mevzuat. This page sets out how we work across the main dimensions of contract law practice in Turkey.
Contract drafting: structure and mandatory law compliance
A lawyer in Turkey advising on contract drafting must explain that a well-drafted Turkish commercial contract performs two functions simultaneously: it records the parties' commercial agreement with sufficient precision to eliminate interpretive ambiguity, and it aligns that agreement with the Turkish mandatory rules that apply to the specific contract type. Failing the first function produces disputes about what was agreed; failing the second produces contracts that are partially or wholly unenforceable because the agreed terms conflict with non-waivable statutory requirements. Turkish law identifies three categories of rules: emredici hükümler (mandatory rules that cannot be contracted out of), tamamlayıcı hükümler (default rules that apply unless the parties agree otherwise), and yorumlayıcı hükümler (interpretive rules that courts use to fill gaps). Identifying which category governs each aspect of the proposed arrangement — and ensuring the contract addresses each mandatory rule and displaces unfavorable defaults — is the core technical task in Turkish contract drafting. Practice may vary by authority and year — verify current Turkish court interpretations of which rules are mandatory versus default in the specific contract category before relying on a specific drafting approach.
An Istanbul Law Firm advising on the structural elements of an enforceable Turkish commercial contract must explain that beyond the substantive content, a Turkish contract must satisfy formal requirements that vary by contract type: real estate sales must be executed before a Turkish notary at the land registry; company share transfers must be executed in notarially authenticated form; employment contracts for periods exceeding one year must be in writing; and arbitration agreements must be in writing to be enforceable. For contracts that do not have a mandatory form requirement, a written agreement is not technically required — but an oral or informally documented commercial arrangement creates severe evidentiary problems if the relationship deteriorates, because Turkish commercial courts expect documentary evidence of the agreed terms, not witness testimony about what was discussed. We recommend written form for all commercial arrangements regardless of whether it is legally required. Practice may vary — verify current Turkish notary and registry requirements for the specific contract type before executing any agreement that may require formal execution.
Contract review: red flag identification and risk assessment
A law firm in Istanbul advising on contract review must explain that a systematic contract review for a Turkish commercial context examines the draft against four dimensions that are frequently missed in a surface reading. First, mandatory law compliance: does any provision in the draft violate a Turkish mandatory rule that applies regardless of the parties' agreement — for example, a limitation of liability clause that purports to exclude liability for gross negligence (ağır ihmal), which Turkish courts generally treat as non-excludable under TBK Article 115? Second, gap analysis: where the contract is silent, what Turkish statutory default fills the gap, and is that default favorable to the reviewing party? Third, enforcement operability: will the contract's procedural provisions — notice addresses, default notice requirements, cure periods, acceptance timelines — work as intended in an actual Turkish enforcement proceeding, and do they create the evidentiary record that enforcement requires? Fourth, asymmetric leverage: where does the draft create conditions or rights that are available to only one party, and does that asymmetry reflect the commercial balance intended? Practice may vary — check current Turkish court treatment of specific clause types before finalizing the redline position on any material provision.
An English speaking lawyer in Turkey advising on common red flags in contracts presented by Turkish counterparties must explain that the most commercially significant issues we identify repeatedly in Turkish-drafted contracts include: jurisdiction clauses designating only Turkish courts without addressing interim relief and enforcement against foreign assets; unilateral price adjustment clauses that allow the Turkish party to change pricing without objective criteria; automatic renewal clauses with notice-to-cancel windows that are operationally difficult to meet; liquidated damages (cezai şart) provisions that are potentially unenforceable because the agreed amount bears no relationship to the foreseeable loss (TBK Article 182 allows courts to reduce disproportionate cezai şart awards); and force majeure clauses so broadly drafted that they release parties from performance obligations that Turkish law would not treat as force majeure events. Each of these issues appears in our written review with a specific explanation of the Turkish law basis for concern and specific suggested redline language. Practice may vary by authority and year — verify current Turkish court approaches to each clause type before finalizing the review and redline positions.
Contract negotiation: strategy and leverage
A Turkish Law Firm advising on contract negotiation strategy must explain that effective negotiation in a Turkish commercial context requires understanding not only what the client wants the contract to say, but also what each proposed term means in the Turkish enforcement environment — because a provision that appears commercially balanced may create significant enforcement leverage asymmetry when one party can more easily satisfy the procedural requirements it imposes. For example, a notice clause that requires service by Turkish notary satisfies the evidentiary standard easily for a Turkish party with access to local notaries, but creates practical difficulties for a foreign party that must either travel to Turkey or use the slower apostille process for foreign notarizations. A dispute resolution clause that designates Istanbul courts without addressing service on foreign parties may favor the Turkish party in practice because service on foreign defendants in Turkish litigation is technically complex and slow. We assess each proposed term for its practical enforcement implications — not just its commercial effect — before advising on the negotiating position. Practice may vary — verify current Turkish civil procedure rules on service of process and evidence requirements before finalizing dispute resolution and notice provisions.
A lawyer in Turkey advising on cezai şart (liquidated damages) negotiation in Turkish contracts must explain that the Turkish Code of Obligations gives courts explicit authority under TBK Article 182 to reduce a cezai şart that is "excessively high" to a reasonable level — meaning that a liquidated damages clause agreed by the parties at a level that seemed commercially appropriate at signing can be judicially reduced if a Turkish court finds it disproportionate to the actual or foreseeable harm. This judicial reduction power has two negotiation implications: first, a Turkish party may agree to a high cezai şart knowing it can later be reduced; and second, the aggrieved party cannot rely solely on a high cezai şart as an actual recovery mechanism. For clients who need reliable liquidated damages protection, we structure the clause with a damages cap and a genuine pre-estimate basis that reduces the court's motivation to intervene. Practice may vary by authority and year — verify current Turkish court approaches to cezai şart reduction in the specific commercial context before relying on a specific liquidated damages quantum in negotiations.
Employment contracts and labor law compliance
An Istanbul Law Firm advising on employment contracts in Turkey must explain that Turkish employment law (İş Kanunu, Law No. 4857) is heavily mandatory — the statutory protections for employees cannot be reduced by agreement, and any contractual provision that purports to give an employee fewer rights than the statutory minimum is automatically replaced by the statutory rule. This means that an employment contract is not a free-standing agreement between equals; it is an agreement that operates within a statutory floor that applies regardless of what the contract says. Key mandatory protections include: minimum annual leave entitlements that increase with seniority; notice periods that are non-waivable below the statutory minimum; the right to severance pay (kıdem tazminatı) after one year of continuous employment, calculated per year of service; reinstatement rights for employees with more than 30 employees and more than 6 months of service who are dismissed without valid cause; and mandatory social security registration. An employment contract must provide for all of these rights at or above the statutory minimum — it cannot contract below them. Practice may vary — verify current Turkish labor law mandatory minimums and any recent regulatory changes before finalizing any employment contract.
An English speaking lawyer in Turkey advising on non-compete and confidentiality provisions in Turkish employment contracts must explain that post-employment non-compete clauses in Turkey are enforceable only within the limits set by TBK Article 444 — which requires that the restriction be limited in geographic scope, limited in duration (maximum two years under Turkish law), and necessary to protect the employer's legitimate commercial interest. A non-compete that is unlimited in territory, unlimited in duration, or broader than necessary to protect specific confidential information or customer relationships is likely to be reduced or voided by a Turkish labor court. We draft non-compete provisions with specific geographic limits, defined activity restrictions, and an express legitimate interest basis to maximize enforceability. Confidentiality provisions that protect specific identified categories of information — rather than purporting to cover all information the employee encountered — are also more reliably enforced. The termination of employment in Turkey framework — covering the procedural requirements for valid dismissal and the financial consequences of wrongful termination — is analyzed in the resource on termination of employment in Turkey. Practice may vary by authority and year — verify current Turkish labor court interpretations of non-compete enforceability before finalizing the scope and duration of any post-employment restriction.
Real estate contracts
A law firm in Istanbul advising on real estate contracts in Turkey must explain that the formal requirements for real estate transactions in Turkey are strict and non-waivable: a binding agreement to transfer ownership of Turkish real property must be executed before a Turkish notary public or at the title deed registry (Tapu Müdürlüğü) to be legally effective — a private written agreement, however well-drafted, does not transfer title and does not create an enforceable obligation to transfer title except through a court order (TBK Article 237, MK Article 706). In practice, preliminary real estate sales agreements (ön satış sözleşmesi or gayrimenkul satış vaadi sözleşmesi) are commonly used before the title transfer is ready, and these preliminary agreements must be notarially executed to be registerable as a protective annotation on the title deed. A foreign buyer who signs a private written preliminary agreement before title transfer without a notarially authenticated version has no registry-protected claim against subsequent transferees or encumbrances. Practice may vary — verify current Turkish notary and land registry requirements for both preliminary and final real estate agreements before advising any foreign buyer on the transaction structure and documentation.
A Turkish Law Firm advising on construction contracts in Turkey must explain that FIDIC-based construction contracts — which are widely used in Turkish infrastructure and commercial construction — interact with Turkish mandatory law in ways that require careful adaptation of the standard FIDIC terms to Turkish legal requirements. Key adaptation points include: the FIDIC limitation of liability provisions, which must be assessed against TBK mandatory liability rules; the FIDIC dispute adjudication process, which must be aligned with Turkish court and arbitration jurisdictional rules; the FIDIC force majeure definition, which may need to be supplemented or adjusted to align with Turkish force majeure jurisprudence; and FIDIC payment certification procedures, which interact with Turkish VAT invoicing requirements and may need adjustment to ensure that each payment certification triggers the correct Turkish tax document. The real estate due diligence for foreigners Turkey framework — covering the title search and due diligence process for foreign real estate buyers — is analyzed in the resource on real estate due diligence for foreigners Turkey. Practice may vary by authority and year — verify current Turkish court interpretations of FIDIC provisions and current Turkish tax authority positions on construction contract invoicing requirements before finalizing any construction contract.
Ihtarname: the formal default notice
A lawyer in Turkey advising on the ihtarname (formal default notice) must explain that an ihtarname is a cornerstone document in Turkish contract enforcement — it is the formal written notice by which one contracting party places the other in official default, triggering the legal consequences of breach including the accrual of interest, the right to terminate, and the creation of a dated record that is required for many subsequent enforcement actions. Turkish commercial courts expect to see an ihtarname in most breach of contract proceedings, and a party who proceeds directly to litigation without having served a proper default notice may be found to have failed a procedural prerequisite or may lose the ability to claim interest from the date of breach. The ihtarname must be served through a legally traceable delivery method to be evidentially reliable: notarial service (noterden ihtarname) creates the strongest evidence of delivery because the notary's record is a public document; registered mail (taahhütlü mektup) with a delivery receipt is the second most common method; and KEP (Kayıtlı Elektronik Posta / Registered Electronic Mail) creates a legally recognized electronic delivery record for parties with KEP addresses. WhatsApp messages, regular email, and verbal communications do not satisfy the ihtarname standard for enforcement purposes. Practice may vary — verify current Turkish commercial court expectations for notice format and delivery method in the specific contract category and jurisdiction before serving any formal default notice.
An Istanbul Law Firm advising on the content requirements of an effective ihtarname must explain that a well-drafted ihtarname must specifically identify: the contract under which the breach has occurred (with date and parties); the specific obligation that has not been performed (with dates and amounts where applicable); the specific remedy being demanded (payment of a specified amount, delivery by a specified date, cessation of a specific conduct); and a reasonable cure period within which the defaulting party can remedy the breach before the demanding party exercises its remedies. An ihtarname that describes the breach vaguely, that demands payment of an amount inconsistent with the contract's pricing schedule, or that gives an unreasonably short cure period may be challenged by the defaulting party as procedurally deficient. The ihtarname should also be consistent with any subsequent litigation claims — a court that sees a demand letter claiming one amount and a lawsuit claiming a different amount will question the credibility of both. Practice may vary by authority and year — verify current Turkish commercial court treatment of ihtarname content requirements and cure period adequacy before finalizing and serving any formal default notice.
Contract enforcement and dispute resolution
A law firm in Istanbul advising on contract enforcement strategy must explain that Turkish contract law provides for three primary enforcement mechanisms that can be pursued independently or in combination. First, specific performance (aynen ifa) — a court order requiring the breaching party to perform its contractual obligation — is available under TBK Article 97 and is most commonly pursued for obligations involving unique assets, real property transfers, or agreed services that cannot be substituted. Second, damages (tazminat) — monetary compensation for losses caused by the breach — is the most commonly pursued remedy and requires proving the breach, the loss, and the causal connection between them. Third, termination (fesih or dönme) — rescinding the contract for material breach — is available where the breach is sufficiently serious and must be preceded by an ihtarname that gives the breaching party an opportunity to cure. The choice among these remedies — and whether to pursue all three simultaneously or in a defined sequence — depends on the commercial objective, the evidence available, and the debtor's asset profile. Practice may vary — verify current Turkish court procedural requirements for each enforcement mechanism before selecting and commencing the appropriate enforcement track.
A best lawyer in Turkey managing a contract enforcement proceeding must explain that the enforcement strategy is shaped from the outset by two practical realities: the quality of the evidence available, and the identifiability and attachability of the debtor's assets. A creditor with a complete evidentiary chain — signed contract, delivery or performance record, ihtarname, and unpaid invoice — can move quickly through the Turkish enforcement system and pursue asset attachment immediately if a Turkish execution title exists or is quickly obtained. A creditor with gaps in the evidentiary chain — unsigned documents, missing delivery records, disputed invoices — will face a contested proceeding where the debtor exploits each gap to delay and reduce the recovery. We assess the evidence chain before recommending an enforcement approach, and where gaps exist, we advise on whether they can be cured before proceeding. The debt recovery law Turkey framework — covering the complete Turkish enforcement and execution process — is analyzed in the resource on debt recovery law Turkey. Practice may vary by authority and year — verify current Turkish enforcement office procedures before commencing any execution action based on a specific evidence package.
How we work
A Turkish Law Firm structuring a contract mandate begins by understanding what the client needs the contract to accomplish — commercially, operationally, and in enforcement terms — before drafting or reviewing a single clause. This means asking: what are the critical performance obligations on each side, and how will compliance with those obligations be measured and evidenced? Where is the most significant risk of non-performance, and what remedy is commercially and practically most important to the client if that risk materializes? What is the realistic enforcement path if the relationship breaks down, and does the contract's dispute resolution, notice, and evidence architecture support that path? A contract that answers these questions through its structure and drafting is a legal tool; a contract that does not is a document that produces a dispute about what it means. Practice may vary by authority and year — check current guidance from applicable Turkish courts and authorities before acting on any general contract law analysis.
ER&GUN&ER advises Turkish and foreign clients on the full lifecycle of commercial contracts in Turkey — from initial structure and drafting through negotiation, review, formal default notice, and enforcement proceedings. We work in English throughout all international mandates and coordinate with sector specialists, financial advisors, and foreign co-counsel as required by the specific transaction. The Istanbul Bar Association at istanbulbarosu.org.tr provides resources for identifying qualified practitioners. Practice may vary — check current guidance before acting on any information on this page.
Frequently Asked Questions
- What is the difference between mandatory and default rules in Turkish contract law? Mandatory rules (emredici hükümler) apply regardless of what the contract says — the parties cannot agree to reduce below them. Default rules (tamamlayıcı hükümler) apply only where the contract is silent — the parties can agree to different terms. Identifying which applies to each aspect of a proposed arrangement is foundational to correct Turkish contract drafting.
- Do commercial contracts in Turkey need to be in writing? Most commercial contracts do not require written form to be valid. However, certain contract types are mandatory-form — real estate transfer agreements must be notarially executed, arbitration agreements must be in writing, employment contracts for periods over one year must be in writing. Even where writing is not required, a documented contract is essential for enforcement.
- What is an ihtarname and when do I need one? An ihtarname is a formal default notice that places the counterparty in official breach. It is required before many contract remedies become available — termination rights, interest from the date of breach, and many enforcement proceedings. It must be served through a legally traceable method (notary, registered mail, or KEP electronic mail) to be evidentially reliable.
- Can Turkish courts reduce agreed liquidated damages? Yes — TBK Article 182 expressly authorizes courts to reduce a cezai şart (liquidated damages clause) that is "excessively high" relative to the actual or foreseeable loss. Agreed penalty amounts can be reduced judicially even if freely negotiated.
- Are post-employment non-compete clauses enforceable in Turkey? Only within the limits of TBK Article 444 — maximum two years duration, limited geographic scope, and necessary to protect a legitimate commercial interest. Overly broad non-competes are reduced or voided by labor courts.
- What are the mandatory employee protections in Turkish employment contracts? Non-waivable minimums include: statutory annual leave (14–26 days depending on seniority), statutory notice periods, kıdem tazminatı (severance) after one year of service, reinstatement rights for employees at qualifying employers with more than 6 months of service, and mandatory SGK registration. Contracts cannot reduce these below the statutory level.
- What enforcement mechanism should I use for a breach of contract in Turkey? The choice among specific performance, damages, and termination depends on the commercial objective, the nature of the breach, and the debtor's asset profile. A contract enforcement strategy should be selected based on which mechanism produces the most practically recoverable outcome — not solely on which right the contract formally provides.
- Do you draft and review contracts in English? Yes — we draft, redline, and negotiate all contracts in English and produce bilingual Turkish/English versions where required. All client-facing communication and written opinions are delivered in English for international mandates.
- What is the limitation period for contract claims in Turkey? The general limitation period under TBK is ten years for contractual claims. The TTK provides a shorter five-year period for certain commercial transaction claims. Specific periods apply to particular claim types — product defect claims, carrier liability, and others have their own shorter periods.
- Can I choose foreign law to govern my contract with a Turkish party? Yes — Turkish private international law (MÖHUK) respects governing law choices. However, Turkish mandatory rules still apply to the relationship regardless of the chosen law, meaning certain Turkish protections (mandatory employee rights, competition law, mandatory agent compensation) cannot be contracted out of by selecting foreign law.
Author: Mirkan Topcu is an attorney registered with the Istanbul Bar Association (Istanbul 1st Bar), Bar Registration No: 67874. His practice focuses on cross-border and high-stakes matters where evidence discipline, procedural accuracy, and risk control are decisive.
He advises companies and investors across Commercial Contract Law, Employment Law, Real Estate Law, and commercial dispute resolution matters where contractual precision and enforcement realism are decisive.
Education: Istanbul University Faculty of Law (2018); Galatasaray University, LL.M. (2022). LinkedIn: Profile. Istanbul Bar Association: Official website.
