Both the delay interest rate — calculated in the event of tax default, late payment and voluntary disclosures — and the legal interest rate have been updated with two consecutive Presidential Decrees published in the Official Gazette on 21 May 2024.

Delay interest had been applied at a rate of 3.5% per month since 14 November 2023.

On 21 May 2024, under Presidential Decision No. 8484, the Turkish Pr…