**Changing Company Activities (NACE Code) in Turkey

(2025 Ultimate Guide for Foreign Investors, Multinational Enterprises & Global Entrepreneurs)**

Changing a company’s activities—officially known as changing the NACE Code—is one of the most strategically important structural updates a business can make in Turkey. NACE Codes determine the legal scope of a company’s commercial activities, define regulatory obligations, impact tax exposure, influence licensing requirements, shape government reporting duties, and directly affect eligibility for sector-specific permits or incentives. For foreign investors, adjusting NACE Codes is often necessary when expanding business lines, restructuring group operations, entering new markets, complying with regulatory expectations, or aligning Turkish subsidiaries with global corporate strategies. Because NACE Codes appear on the Trade Registry, Tax Office, Social Security (SGK) records, municipal documents, and many sectoral authority databases, every update must be handled with exceptional precision. Below is the most comprehensive, foreign-investor-oriented guide available.

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Understanding the Legal Significance of NACE Codes in Turkey

NACE Codes are not merely descriptive categories; they legally define what a company is allowed to do. Every Turkish company’s Articles of Association include a business purpose clause, and the NACE Code must align with this clause. If your Turkish subsidiary operates activities outside its NACE Code or Articles of Association, it may face tax penalties, municipal sanctions, licensing rejections, and operational disruptions. Foreign investors often underestimate the significance of NACE Code accuracy, but Turkish law treats it as an essential component of regulatory compliance and sector legitimacy. A properly selected NACE Code also influences work permit approvals, because the Ministry of Labor assesses foreign personnel needs based on the company’s declared sector and economic activity.

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Why Companies Change Their NACE Codes

Companies frequently need to update NACE Codes due to expansion into new business lines, mergers, corporate restructuring, diversification of services, regulatory changes, or sectoral shifts. Foreign-owned companies often adjust NACE Codes to match group business models, integrate with global supply chains, or comply with industry-specific legislation. In addition, companies entering new sectors—such as technology, consulting, logistics, fintech, e-commerce, or manufacturing—must update their NACE Codes to avoid operating outside their authorized commercial framework. Changing a NACE Code is common for startups that scale into new markets and for multinational subsidiaries adapting to evolving internal policies.

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Relationship Between NACE Codes and Articles of Association

To legally change a NACE Code, the company’s Articles of Association must allow the corresponding business activity. If the AoA does not include the new activity, the Articles must be amended through a General Assembly resolution. This amendment must be accurately drafted, notarized, and filed with the Trade Registry. Many foreign investors are surprised to learn that updating a NACE Code without updating the Articles creates legal inconsistency between corporate records and regulatory registrations, potentially triggering tax audit concerns or ministry-level issues. A precise alignment between the Articles and the chosen NACE Code ensures full compliance and operational clarity.

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Determining the Correct NACE Code for Foreign-Owned Companies

Foreign investors often operate globally with multi-sector activities, making it essential to choose the correct NACE Code for the Turkish entity. Misclassification may lead to licensing denials, improper taxation, unexpected regulatory obligations, or operational blocks. Determining the correct NACE Code requires reviewing Turkish Commercial Code rules, sector regulations, municipal obligations, tax office expectations, Ministry of Labor standards, and international group classifications. Your law firm’s expertise is critical in evaluating legal implications and selecting the most strategic activity code.

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General Assembly Decision Requirements for Changing NACE Code

Changing a company’s NACE Code—regardless of the sector—involves convening a General Assembly meeting. The shareholders must approve the new activity or activities through a formal resolution. This resolution must be carefully drafted, reflecting both the change in the Articles and the intended NACE Code update. The meeting must follow strict procedures regarding invitations, quorum, voting rules, minute drafting, and notarization. Foreign shareholders unable to attend physically may participate through a notarized and apostilled power of attorney. A legally valid General Assembly resolution is essential for the Trade Registry to accept the NACE Code change.

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Notary Procedures and Document Certification Requirements

Notarization is an essential step in changing a company’s activity scope or NACE Code. General Assembly minutes, Articles of Association amendments, and authorized signature documents must all be certified at the notary. Turkish notaries require precise drafting and compliance with legal terminology. Foreign investors must ensure that any foreign-issued documents (such as POAs or corporate resolutions for multinational shareholders) are apostilled and translated by sworn translators before notarization. Failure to meet notary requirements is one of the most common causes of delays in the NACE Code update process.

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Submitting the Updated Activity Information to the Trade Registry

After completing the General Assembly and notarization steps, the company must file the update with the Trade Registry through the MERSİS system. The Trade Registry reviews the updated Articles, resolution, and explanatory documents to ensure full compliance. Once approved, the company’s activity structure becomes officially updated and is published in the Trade Registry Gazette. For foreign investors, Trade Registry approval is essential because banks, licensing authorities, and government institutions rely on corporate registry data to verify business legitimacy.

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Coordination With the Tax Office After NACE Code Change

Once the Trade Registry updates the NACE Code, the Tax Office is automatically notified through electronic integration, but companies often need to submit additional clarifications. The Tax Office assigns sector-based tax audit risk ratings and may require updated operational explanations. For some sectors—especially consulting, IT, logistics, or regulated industries—tax classification plays a crucial role in VAT rules, withholding obligations, and risk scoring. Accurate communication with the Tax Office ensures that the company avoids unnecessary tax scrutiny.

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Impact of NACE Code Changes on Social Security (SGK) Classifications

Changing a NACE Code may trigger changes in SGK classifications and accident risk premiums. SGK sets mandatory insurance premiums based on the company’s declared sector. A company reclassified into a higher-risk sector may face increased premiums. Conversely, a shift into a lower-risk sector may reduce costs. Foreign investors must consider these financial implications before finalizing their NACE Code selection.

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Sector-Specific Licensing and Permit Requirements

Many business activities in Turkey require additional sectoral licenses, municipal permits, ministry approvals, or regulatory certifications. Changing a NACE Code may activate new obligations or render existing licenses invalid. For example, tourism companies require TURSAB licenses, logistics firms require UBAK permits, restaurants need municipal approvals, fintech companies require BDDK permissions, and import/export firms must register with trade authorities. A NACE Code update must therefore be coordinated with relevant regulatory bodies to maintain full compliance.

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Banking, AML/KYC, and Compliance Considerations

Banks in Turkey maintain strict AML/KYC obligations and monitor company activities through NACE Codes. When a company changes its activity scope, the bank may request updated documents, board resolutions, activity explanations, and financial projections. Foreign investors should expect compliance checks, especially if the company shifts into sectors associated with higher financial risk. A professionally managed NACE Code change ensures uninterrupted banking operations and avoids compliance flags.

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Work Permit Implications for Companies With Foreign Employees

NACE Codes influence work permit evaluations because the Ministry of Labor examines whether the company’s declared commercial activity justifies hiring foreign personnel. When NACE Codes change, the company may need to update its work permit application strategy, justification documents, and sectoral expectations. Foreign investors planning to employ international staff must coordinate NACE Code updates with their immigration roadmap to avoid application rejections.

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Common Mistakes Foreign Companies Make When Changing NACE Codes

Common mistakes include selecting an incorrect NACE Code, failing to update the Articles of Association, ignoring SGK implications, neglecting sectoral licensing requirements, not informing banks, submitting incomplete Trade Registry documents, or misunderstanding regulatory overlap. These errors cause operational delays, compliance violations, bank freezes, or tax issues. Foreign investors benefit from legal guidance to prevent such issues.

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How Multinational Groups Strategically Use NACE Code Updates

Multinational enterprises often adjust NACE Codes to align Turkish subsidiaries with global business lines, integrate supply chains, adopt new group strategies, or meet internal reporting requirements. Strategic NACE Code planning enhances global compliance, improves financial reporting, simplifies work permit structures, and supports cross-border operational consistency. Your law firm plays a crucial role in ensuring the Turkish entity’s activity scope aligns with international corporate governance standards.

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Conclusion & Call to Action

Professional NACE Code Change Services for Foreign-Owned Companies in Turkey**

Changing a company’s NACE Code is not a simple administrative step—it is a major structural update that affects compliance, licensing, banking, taxation, SGK risk ratings, work permit strategies, and long-term operational success. For foreign investors and multinational companies, it is essential that every procedural step is executed accurately, legally, and strategically.

Fırat Fesih Kaya Law Firm offers end-to-end, English-language legal support for:

• Drafting and amending Articles of Association
• Preparing and notarizing General Assembly resolutions
• MERSİS and Trade Registry filings
• Coordinating with Tax Office, SGK, and banks
• Ensuring licensing compliance for regulated sectors
• Strategic NACE Code planning for multinational structures
• Full English-language legal representation

If you want your NACE Code change to be safe, compliant, and strategically aligned with your international business model:

📞 Fırat Fesih Kaya Law Firm
☎️ +90 312 434 22 22
📍 Ankara – Turkey
💼 Corporate Law • Foreign Investment • Licensing & Compliance • Commercial Structuring