LOCAL AND GLOBAL MINIMUM COMPLEMENTARY CORPORATE TAX GENERAL COMMUNIQUÉ PUBLISHED.

Articles supplementing the Corporate Tax Law (CTL) with provisions on local and global minimum complementary corporate tax were added by Law No. 7524. These provisions aim to ensure consistency in domestic legislation for taxing multinational enterprise earnings and to increase alignment with existing international standards.

In summary, the profits of affiliated entities of multinational enterprise groups whose consolidated annual global revenue, as reported in the ultimate parent entity's consolidated financial statements, exceeded the equivalent of EUR 750 million in at least two of the four fiscal periods preceding the reporting period (for 2024: 2020, 2021, 2022 and 2023) are subject to local and global minimum complementary corporate tax.

The minimum corporate tax rate is 15%. Taxation below 15% is topped up through the Local Additional Tax (LATV), Income Inclusion Rule (IIR) and Undertaxed Profits Rule (UTPR) mechanisms.

The General Communiqué on Local and Global Minimum Complementary Corporate Tax was published in the Official Gazette No. 33119 dated 26.12.2025.

Companies must follow these steps:

1. Determine whether they fall within the scope of the tax and, if so, establish a "0063 – Local Minimum Complementary Corporate Tax" taxpayer status.

2. Identify liability for local and global minimum complementary corporate tax.

3. Determine the tax base (net country-based earnings and deductions).

4. Calculate the tax burden (adjusted covered taxes and country-based earnings).

5. Apply safe harbour tests for exemptions.

The deadline for submitting local minimum complementary corporate tax returns and paying the resulting tax for the 2024 fiscal period has been extended to Thursday, 15 January 2026.

Respectfully.

https://www.resmigazete.gov.tr/eskiler/2025/12/20251226-9.pdf