Tax Audit of Legal Entities and Their Partners in Türkiye: 2026 Regulatory Outlook

As of 2026, there is no specific legislation in Türkiye that directly governs the tax auditing of company founders and partners by the tax administration. However, several regulatory provisions indirectly ensure that both corporations and their shareholders remain under tax compliance supervision. These rules are fundamental for investors and business operators who aim to maintain transparency and minimize audit risks in the Turkish market.

Transactions Between Related Parties and Transfer Pricing Audits

Transactions conducted between related parties at prices below or above the fair market value may trigger scrutiny under Transfer Pricing regulations. Such dealings could expose legal entities to the risk of hidden profit distribution. In these cases, the tax authorities are authorized to review company records, apply tax reassessments with penalties, and even file a criminal complaint with the prosecutor’s office if necessary.

Criteria for Independent Audit Requirements

All companies that exceed at least two of the following three thresholds for two consecutive fiscal periods are subject to an independent audit:

• Total assets
• Net annual sales
• Number of employees

This auditing mechanism ensures financial transparency by overseeing both corporate and shareholder activities. The financial size of a company determines whether it falls under the scope of the tax administration’s audit authority.

Obligation to Declare the Beneficial Owner

All taxpayers, including corporate income taxpayers, are required to submit information about their beneficial owners via the Internet Tax Office. New taxpayers or those with updates to previously reported information must complete this notification within one month following the date of change. This requirement aims to enhance transparency in ownership structures and combat tax evasion and money laundering.

Financial Documentation and Recordkeeping Regulations

• Electronic Invoicing System: Businesses with a gross sales revenue of 3,000,000 TL or more in 2025 must switch to the electronic invoicing system by July 1, 2026.
• E-Ledger Application: Taxpayers keeping books on a balance sheet basis, including corporations such as joint-stock and limited companies, are required to maintain their journals and ledgers electronically.

These digital compliance obligations not only streamline financial processes but also improve the efficiency of audits and data sharing with tax authorities.

Auditing and Financial Reporting Scope

As of January 1, 2026, certified public accountant (CPA) attestation reports include reciprocal inspection records that can be prepared voluntarily in electronic format through the digital tax office system. This digital transition reflects Türkiye’s broader effort to modernize its tax control mechanisms and simplify tax reporting procedures.

Strategic Assessment for International Entrepreneurs

For global entrepreneurs managing legal entities in Türkiye, compliance with transfer pricing regulations, timely submission of beneficial ownership notifications, and smooth integration into electronic reporting systems are crucial steps to reduce potential audit risks. Proactive adherence to these requirements ensures legal integrity, enhances corporate reputation, and helps maintain consistent operational efficiency within Türkiye’s evolving business environment.