Circular 2025 – 059
Average Commercial Loan Interest Rates for 2025/July, 2025/August and 2025/September to be Used in Inflation Adjustment Procedures
The Directorate of Revenue Administration has announced the average commercial loan interest rates for July 2025, August 2025, and September 2025, to be used in inflation adjustment transactions, through Tax Procedure Law Circular No. 192.
Pursuant to Article 298A of the Tax Procedure Law No. 213 and its temporary article 33, the procedures and principles regarding the inflation adjustment of balance sheets at the end of the 2023 accounting period and in subsequent accounting periods, depending on the realization / existence of correction conditions (including interim tax periods), have been determined by Tax Procedure Law General Communiqué No. 555, and some matters regarding implementation and explanatory examples have been included in Tax Procedure Law Circulars No. 165 and No. 176.
These Circulars announce the average commercial loan interest rates for July, August, and September 2025, which will be used in the ROFM calculations for inflation adjustment transactions.
You can access the circular in question at the following link.
Sincerely










