"The Regulation Amending the Regulation on Commercial Advertising and Unfair Commercial Practices", published in the Official Gazette dated July 1, 2026 and numbered 33297, introduces various amendments to the Regulation on Commercial Advertising and Unfair Commercial Practices. The amendments will enter into force on August 1, 2026.

The Personal Data Protection Board (the "Board") published its "Principle Decision on the Processing of Personal Data of Accident Victims" (Decision No. 2026/1095, dated May 20, 2026) in the Official Gazette on July 1, 2026.

Through its Principle Decision dated May 20, 2026 and numbered 2026/1095, the Board has clarified the principles and procedures applicable to the unlawful access to and processing of the personal data of accident victims by unauthorized persons.

Law No. 7587 on Amendments to Certain Laws, enacted on June 24, 2026, introduced significant amendments directly affecting Turkish tax legislation, including the Income Tax Law, the Tax Procedure Law, the Value Added Tax (VAT) Law, and certain other special laws.

Under Law No. 5604 on the Establishment of the Fiscal Holiday, the 2026 fiscal holiday will commence on July 1, 2026 and end on July 20, 2026 (inclusive).

For the 2026 fiscal holiday period:

• The filing deadline for tax returns originally due between July 1 and July 20, 2026 has been extended to Monday, July 27, 2026.
• Taxes accrued based on these returns must be paid by Tuesday, July 28, 2026.
• The same extension also applies to tax returns whose original filing deadline falls within the five-day period immediately following the end of the fiscal holiday.