On May 28, 2026, Law No. 526 formally enacted on May 29, 2026 was published in Official Gazette No. 30534-B; this law amends and adds articles to the Tax Code regarding Income Tax and economic substance requirements for certain foreign-source passive income. These regulations introduce strict economic substance rules for specific foreign-source passive income earned by entities belonging to multinational groups.
Download the bulletin here for more information.


