Türkiye zeroes diesel ÖTV for the rest of August, then phases it back in monthly through January 2027

What changed in detail

Presidential Decision No. 11606, published in Resmî Gazete No. 33339 on 13 August 2026 and entering into force the same day, redetermines the Special Consumption Tax (ÖTV) amounts on diesel-type fuel goods under GTİP codes 2710.19.43.00.11 and 2710.20.11.00.11 (Law No. 4760, List I, Table A). The rate is set to 0 TL/litre for 13–31 August 2026, then phases back in monthly:

• 1–30 September 2026: 3.0000 TL/litre
• 1–31 October 2026: 6.0000 TL/litre
• 1–30 November 2026: 9.0000 TL/litre
• 1–31 December 2026: 12.0000 TL/litre
• From 1 January 2027: 13.9006 TL/litre

Article 2 of the decision disapplies the diesel provisions of the earlier Decision No. 10995 (4 March 2026) for goods under these same GTİP codes.

This is the second diesel ÖTV redetermination in six weeks — Decision No. 11488 (3 July 2026) preceded it, amending Decision No. 10995’s adjustment band and suspending its automatic indexation for July–December 2026. Decision No. 11606 now replaces the diesel rate itself rather than adjusting the band around it.

What it means

The cadence is the operational fact: two presidential decisions on the same fuel category six weeks apart means a fixed rate table is not a “set and forget” configuration for Turkish diesel ÖTV right now. Systems should load the full step schedule through January 2027, not just the current zero rate, and build in a review point each time a new month’s step takes effect — history here suggests another redetermination before the schedule reaches its 1 January 2027 floor is a real possibility, not a hypothetical.