Introduction
As of 2025, the Public Procurement Authority has introduced significant amendments to the Regulation on the Implementation of Consultancy Service Procurement Tenders. Published in the Official Gazette on July 30, 2025, these changes bring innovations in cost calculations, price difference applications, force majeure provisions, and contract termination procedures.
1. Updated Definitions of Index and Sub-Index
Article 3 of the Regulation has redefined “Index” as the Domestic Producer Price General Index published by the Turkish Statistical Institute. Additionally, the “Sub-Index” definition has been introduced, specifying that the gross minimum wage will be used for labor and sub-sector-based data from the Domestic Producer Price Index will be used for non-labor inputs.
2. Approximate Cost and Price Update
If prices determined by public institutions are used, outdated prices will be d using the relevant indices. This will be carried out by comparing the index rates on the specified dates.
3. Price Difference Calculation
For works where price differences are foreseen, the price difference coefficient (Pn) determined under the Public Procurement Law No. 4734 will be applied. For works where price differences are not foreseen, s will be made using the index rate.
4. Provisional Article – Ongoing Tenders
Tenders announced or published before September 1, 2025, will be concluded according to the provisions in force on that date.
5. Contract Amendments and Force Majeure Provisions
With the amendments to the standard contract, late applications will not be considered, and in cases where force majeure continues, it will be accepted that the application period is extended. In addition, if a contract is terminated due to force majeure, the work will be liquidated, and performance guarantees will be returned.
Conclusion
These amendments aim to enhance transparency in tenders, ensure more realistic cost calculations, and protect the rights of parties in cases of force majeure.
Effective Date: September 1, 2025
Enforcement: President of the Public Procurement Authority in Türkiye