Turkey Market Entry & Accounting Tax Guide for Sustainability Companies – 2026

COP31 Antalya: Sustainability Companies’ Tax Obligations in Turkey

Turkey’s selection as the host country of COP31—in partnership with Australia—positions the country at the center of the global sustainability and climate-action agenda in 2026. This international momentum is expected to attract renewable energy developers, carbon market players, climate-tech startups, ESG consultancy firms, green-finance institutions, environmental engineering companies, and impact-driven NGOs to Turkey.

For all sustainability-focused companies planning to operate, invest, or deliver services in Turkey before or during COP31, understanding the market-entry rules, tax obligations, reporting standards, and compliance timelines is critical.

This guide provides a comprehensive, strategic, and practical framework for foreign sustainability companies entering Turkey in 2026.

1. Why Turkey? Why 2026? Why COP31 Matters

Turkey’s COP31 presidency will significantly accelerate:

• Climate-policy reforms (carbon pricing, ETS launch, MRV expansion)

• Sustainability-focused investments (renewables, energy efficiency, circular economy)

• Evolving ESG standards aligned with EU expectations

• International project financing through global climate funds

• Demand for advisory, engineering, digital sustainability and monitoring technologies

Foreign companies entering Turkey during this period benefit from:

• growing demand for climate and sustainability services,

• government incentives for green transformation,

• expanding carbon markets and MRV requirements,

• increasing number of public and private sustainability tenders,

• enhanced global visibility due to COP31.

2. Market Entry Options for Sustainability-Focused Foreign Companies

Foreign investors may engage in Turkey through different legal structures depending on the scope of their sustainability projects.

2.1. Limited Liability Company (LTD) – The Most Common Path

Ideal for companies providing:

• sustainability consulting

• carbon accounting & MRV services

• renewable energy project development

• engineering & environmental impact analysis

• software and data-driven climate-tech solutions

• ESG & CSR reporting services

Advantages:

• Fast incorporation (2–4 business days)

• No local shareholder requirement

• Low minimum capital (10,000 TRY)

• Ability to employ foreign specialists

• Eligibility for government incentives

2.2. Branch Office

Suitable when:

• the foreign entity directly executes projects in Turkey,

• no local shareholders are desired,

• contractual obligations must remain under the foreign parent.

Taxation is aligned with the corporate tax regime.

2.3. Liaison Office (Non-Commercial)

Recommended for companies that will only:

• conduct market research,

• coordinate global sustainability projects,

• provide non-commercial training or information.

Liaison offices are not allowed to earn revenue in Turkey.

2.4. Working Without a Legal Entity: Cross-Border Service Provision

Companies offering:

• remote ESG reporting services,

• remote climate-tech software licensing,

• environmental modelling,

• consultancy to Turkish clients

may operate under cross-border service tax rules (reverse charge VAT).

3. Tax Obligations for Sustainability Companies Operating in Turkey (COP31 Edition)

3.1. Corporate Income Tax (CIT)

The standard CIT rate in Turkey in 2026 is expected to remain between 23%–25%.

Companies must file:

• Quarterly advance tax declarations

• Annual corporate income tax return

3.2. VAT Obligations Applicable to Sustainability Services

Many sustainability services fall within VAT liability:

18% VAT applies to:

• ESG consulting

• technical environmental services

• carbon footprint modelling

• sustainability strategy design

• software services related to carbon accounting

• engineering and MRV-related services

• environmental impact reporting (EIA)

Reverse Charge VAT applies when:

• non-resident companies sell services to VAT-registered clients in Turkey.

In this case, the Turkish client calculates and pays the VAT.

3.3. Withholding Tax (WHT)

Cross-border payments may trigger withholding if:

• royalties for climate-tech software are paid,

• technical service fees are charged,

• IP-based sustainability tools are licensed.

Typical WHT rate: 20%
May be reduced by Double Tax Treaties.

3.4. Transfer Pricing for Sustainability Groups

If a foreign sustainability group establishes a Turkish subsidiary:

• intercompany charges

• software licensing

• central R&D allocations

• environmental consulting fees

must comply with Turkish transfer pricing rules and OECD guidelines.

4. Climate-Relevant Incentives for Sustainability Companies

4.1. Green Transformation Support Programs

Turkey currently offers incentives through:

• Ministry of Industry & Technology

• TÜBİTAK (R&D and green innovation projects)

• KOSGEB (SME green transformation grants)

• Energy Efficiency & Renewable Investment Schemes

• International climate finance mechanisms

4.2. Corporate Tax Exemptions for Technology Development Zones (TDZ)

Sustainability companies developing:

• climate-tech software

• ESG analytics tools

• carbon modelling systems

• MRV automation solutions

may enjoy:

• 100% corporate tax exemption

• 100% income tax withholding exemption on R&D salaries

• 0% VAT on software products (subject to zone approval)

4.3. Customs & VAT Exemptions for Research Equipment

Foreign and domestic companies performing environmental R&D may import:

• monitoring devices

• measurement tools

• laboratory equipment

• simulation technologies

with VAT and customs exemptions.

5. Carbon Market & MRV (Monitoring, Reporting, Verification) Rules

COP31 is expected to accelerate Turkey’s transition into a structured Emissions Trading System (ETS). Companies operating in:

• renewable energy

• heavy industry

• waste management

• transportation

• agriculture

• building & construction sustainability

must prepare for:

• MRV compliance

• carbon footprint auditing

• sector-specific carbon reporting standards

Foreign companies offering carbon-market tools must document:

• methodology transparency

• data verification processes

• technology licensing details

• contractual responsibility transfers

6. Financial Reporting & ESG Disclosure Requirements

Turkey is transitioning towards international sustainability reporting standards:

• IFRS S1 – General Sustainability Disclosures

• IFRS S2 – Climate-Related Disclosures

• EU CSRD alignment (for companies trading with the EU)

Sustainability companies must prepare:

• annual financial statements,

• ESG-aligned non-financial reports,

• impact statements for project financing,

• grant-fund reporting where applicable.

7. Employment, Work Permits & Expat Taxation for Foreign Experts

COP31 will attract global sustainability experts to Turkey.

Foreign professionals delivering short-term sustainability services may be subject to:

• Turkish income tax

• withholding tax

• social security obligations (depending on total stay)

Companies employing expatriates must secure:

• work permits,

• Social Security (SGK) registrations,

• residence permits,

• payroll compliance.

8. Compliance Calendar for 2026

Monthly:

• VAT return

• Withholding tax return

• Social security filings

• E-ledger submissions

Quarterly:

• advance tax filings

• stamp tax submissions

Annual:

• corporate tax return

• annual financial statements

• sustainability disclosures (sector-specific)

9. Practical Recommendations for COP31 Participants and Sustainability Companies

1. Establish a market-entry plan at least 6–8 months before COP31.

2. Secure VAT registration early for service providers and software companies.

3. Structure contracts carefully to avoid unexpected withholding tax.

4. Choose the correct legal entity depending on service model and revenue.

5. Align sustainability reporting with IFRS S1/S2 and EU CSRD practices.

6. Plan transfer pricing policies for intercompany climate-tech services.

7. Prepare for Turkey’s upcoming ETS regulations (carbon pricing rules).

8. Evaluate incentives for green technology activities.

9. Use COP31 visibility to expand partnerships with Turkish companies.

10. Tailored Market Entry & Tax Advisory for Sustainability Investors

Foreign sustainability companies entering Turkey—especially within the COP31 agenda—require precise, compliant, and sector-specific accounting and tax advisory.

We support:

• Turkey market entry & company incorporation

• VAT registration for sustainability service providers

• accounting, payroll & tax compliance

• cross-border service structuring

• transfer pricing for climate-tech groups

• ESG & sustainability reporting alignment

• grants, incentives, and green-investment frameworks

• expatriate taxation & work permits

If your organization is planning to enter Turkey before or during COP31, we will guide you through every regulatory, tax and reporting requirement.

info@ozmconsultancy.com