Learn how commercial due diligence in Turkey protects foreign investors before acquisitions, joint ventures, and strategic investments. Discover the 2026 legal framework, risk assessment process, compliance review, and best practices for successful investments.

Entering the Turkish market presents significant opportunities for international investors, multinational corporations, private equity funds, venture capital firms, and strategic buyers. However, every investment carries commercial, financial, operational, regulatory, and legal risks. Conducting comprehensive commercial due diligence in Turkey before completing an acquisition or investment is one of the most effective ways to protect capital and avoid unexpected liabilities.

Commercial due diligence extends beyond reviewing financial statements. It evaluates the target company’s commercial viability, market position, operational performance, customer relationships, regulatory compliance, competitive advantages, contractual obligations, and long-term growth potential. In 2026, increased regulatory scrutiny, evolving corporate governance standards, digital compliance obligations, and international sanctions enforcement make due diligence more critical than ever for foreign investors.

What Is Commercial Due Diligence?

Commercial due diligence is an independent investigation performed before an investment, merger, acquisition, joint venture, or strategic partnership to assess whether a business can achieve its projected commercial objectives.

Unlike financial or legal due diligence, commercial due diligence focuses on the business itself, including:

• Market size and growth
• Competitive landscape
• Customer portfolio
• Revenue sustainability
• Supplier dependency
• Operational efficiency
• Business model
• Commercial contracts
• Sales performance
• Pricing strategy
• Industry outlook
• Regulatory risks

Its objective is to determine whether projected revenues and business assumptions are realistic.

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Why Foreign Investors Need Commercial Due Diligence in Turkey

Foreign investors frequently encounter risks that are not immediately visible during negotiations.

Common hidden risks include:

• Customer concentration
• Dependence on one supplier
• Weak corporate governance
• Undisclosed litigation
• Regulatory investigations
• Customs compliance issues
• Tax exposure
• Employment liabilities
• Environmental compliance deficiencies
• Data protection violations
• Intellectual property disputes
• Change-of-control clauses
• Hidden operational inefficiencies

Identifying these issues before closing significantly reduces investment risk.

Transactions Requiring Commercial Due Diligence

Commercial due diligence is recommended for:

• Company acquisitions
• Share purchases
• Asset acquisitions
• Joint ventures
• Strategic partnerships
• Foreign direct investments
• Venture capital investments
• Private equity transactions
• Franchise acquisitions
• Manufacturing investments
• Distribution agreements
• Technology investments
• Family business acquisitions

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Key Areas Examined During Commercial Due Diligence

A comprehensive review generally includes:

Corporate Structure

• Shareholding structure
• Beneficial ownership
• Corporate governance
• Board composition
• Authorized signatories
• Capital structure

Commercial Operations

• Business model
• Revenue streams
• Customer retention
• Sales pipeline
• Distribution network
• Market positioning

Financial Performance

• Revenue quality
• EBITDA sustainability
• Cash flow stability
• Working capital
• Debt exposure
• Profit margins

Commercial Contracts

Review of:

• Customer agreements
• Supplier contracts
• Distribution agreements
• Agency contracts
• Licensing agreements
• Lease agreements
• Financing documents

Special attention should be given to termination clauses, exclusivity provisions, penalty clauses, and change-of-control provisions.

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Regulatory Compliance Review

Commercial due diligence should verify compliance with:

• Turkish Commercial Code
• Foreign Direct Investment Law
• Competition legislation
• Consumer protection laws
• Data protection (KVKK)
• Employment regulations
• Customs legislation
• Environmental regulations
• Sector-specific licensing rules

Non-compliance may significantly affect valuation and post-closing liabilities.

Industry Analysis

Investors should evaluate:

• Market growth
• Competitive intensity
• Entry barriers
• Customer behavior
• Regulatory trends
• Import dependency
• Export potential
• Currency exposure
• Technological disruption

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Customer Due Diligence

Customer analysis should determine:

• Customer concentration
• Long-term contracts
• Renewal rates
• Churn rate
• Payment performance
• Geographic diversification
• Customer complaints
• Litigation involving key clients

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Supplier Risk Assessment

Review should include:

• Critical suppliers
• Exclusive supply arrangements
• Alternative sourcing
• Price stability
• Import dependency
• Sanctions exposure
• Supply chain resilience

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Operational Due Diligence

Operational review commonly covers:

• Manufacturing capacity
• Inventory management
• Logistics
• Information systems
• ERP software
• Cybersecurity
• Procurement
• Quality control
• Business continuity

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Intellectual Property Review

Foreign investors should verify ownership of:

• Trademarks
• Patents
• Copyrights
• Industrial designs
• Domain names
• Software licenses
• Trade secrets

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Employment Review

Review includes:

• Employment contracts
• Executive agreements
• Collective bargaining obligations
• Employee litigation
• Severance liabilities
• Social security compliance
• Workplace safety

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ESG and Sustainability

In 2026, investors increasingly evaluate:

• Environmental compliance
• Carbon reporting
• ESG governance
• Anti-corruption controls
• Human rights policies
• Supply chain transparency

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Red Flags

Examples include:

• Unregistered agreements
• Declining revenues
• Significant customer dependence
• Regulatory investigations
• Customs penalties
• Tax audits
• Weak compliance culture
• High employee turnover
• Pending litigation
• Undisclosed liabilities
• Inadequate internal controls

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Risk Mitigation Strategies

Commercial due diligence findings often lead to:

• Purchase price adjustments
• Earn-out mechanisms
• Escrow arrangements
• Specific indemnities
• Representations and warranties
• Closing conditions
• Post-closing covenants
• Compliance remediation plans

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2026 Developments

Foreign investors should pay particular attention to:

• Enhanced digital compliance expectations
• Increased customs and trade compliance enforcement
• Stronger corporate transparency requirements
• Expanded AML and beneficial ownership scrutiny
• Greater focus on ESG reporting
• Higher expectations regarding data governance and cybersecurity risk management.

Common Mistakes Made by Foreign Investors

• Relying solely on financial statements
• Ignoring commercial contracts
• Skipping operational reviews
• Overlooking regulatory approvals
• Failing to assess customer concentration
• Ignoring compliance history
• Conducting insufficient management interviews
• Completing transactions without independent legal advice

Conclusion

Commercial due diligence in Turkey is no longer simply a transaction checklist. It is a strategic risk management process that enables foreign investors to identify hidden liabilities, verify commercial assumptions, negotiate stronger contractual protections, and complete investments with greater confidence. A comprehensive due diligence process can significantly reduce post-closing disputes while supporting informed investment decisions in an increasingly regulated business environment.

Frequently Asked Questions

1. Is commercial due diligence mandatory in Turkey?
No. However, it is considered a best practice for virtually every significant investment or acquisition.

2. How long does commercial due diligence usually take?
Depending on the size and complexity of the target company, it typically ranges from two to eight weeks.

3. Can foreign investors conduct due diligence remotely?
Yes. Most reviews are performed through secure virtual data rooms, supplemented by management interviews and site visits where necessary.

4. Does commercial due diligence include legal due diligence?
No. Commercial, legal, financial, tax, and technical due diligence are separate workstreams that complement one another.

5. What industries require the most extensive due diligence?
Manufacturing, energy, healthcare, technology, logistics, financial services, defense, pharmaceuticals, and regulated industries generally require more detailed reviews.

6. Can due diligence reduce the purchase price?
Yes. Material risks identified during the review often justify price adjustments or additional contractual protections.

7. Why is commercial due diligence important for foreign investors?
It helps verify the target company’s commercial viability, identify hidden risks, improve negotiation leverage, and reduce post-acquisition disputes.

8. Should commercial due diligence be performed before signing or before closing?
Ideally, substantial due diligence should be completed before signing, with confirmatory reviews continuing until closing.

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Legal Support for Foreign Investors

Investing in Turkey without comprehensive commercial due diligence may expose your business to significant financial and legal risks. Fırat Fesih Kaya Law Office advises international investors throughout mergers, acquisitions, joint ventures, corporate restructurings, foreign direct investments, and commercial due diligence projects.

Contact our experienced legal team for tailored legal advice before making your investment decision.

Phone: +90 312 434 22 22
Mobile: +90 532 769 22 22
Email: info@firatfesihkaya.av.tr
Address: Mevlana Boulevard No:221, Yıldırım Tower, Office No:148, 06520 Balgat, Çankaya, Ankara, Turkey