German fuel prices rise within days of October tax cut as ADAC reports shrinking savings

Price increases follow fuel tax reduction

German motorists faced higher fuel costs over the weekend despite the introduction of a federal tax discount on 1 October 2026. Data published by the automobile club ADAC showed that nationwide daily average prices for Super E10 reached 2.137 euros per liter on Sunday, 4 October 2026. That figure represents an increase of 2.3 cents compared to the start of the tax cut on Thursday. Diesel prices rose by 0.9 cents over the same period to reach an average of 2.253 euros per liter on Sunday. The energy tax reduction of 16.7 cents per liter on petrol and diesel is scheduled to remain in effect until 31 December 2026. German federal legislation does not impose a legal obligation on fuel station operators to pass the tax relief directly to consumers at the pump. When compared to the daily averages recorded on 28, 29, and 30 September 2026, Sunday pump prices remained lower by 10.5 to 13.9 cents for Super E10 and by 13.7 to 17.2 cents for diesel.

Vanishing discounts across metropolitan areas

Automobile association ADAC noted that initial price reductions were rapidly diminishing without clear economic justification from raw material markets. Crude oil prices and the euro-to-dollar exchange rate remained largely unchanged over the first days of October.

For this development in Super E10, there is currently no obvious explanation, because the oil price and the euro-dollar exchange rate have recently changed very little. From a consumer perspective, this renewed price increase is therefore difficult to understand.

Data from fuel price tracking portal Tankerkönig confirmed that Thursday morning was significantly cheaper across Germany than subsequent mornings. Motorists looking for Super E10 below the two-euro threshold encountered fewer options by Monday, 5 October 2026, ahead of the typical daily midday price increase. The ADAC mobile application showed zero offers below two euros per liter in Berlin, Hamburg, or Stuttgart before noon on Monday. In Leipzig and Cologne, only isolated filling stations maintained prices below two euros. In Munich, which had recently recorded comparatively low fuel prices, slightly more than one in three stations offered E10 below two euros on Monday, down from more than half on Thursday.

Industry response and pass-through debates

The October tax cut is the second fuel relief measure implemented in Germany during 2026, following steep price increases caused by the war in Iran. The German government previously reduced energy taxes on fuel during May and June 2026. Subsequent evaluations of that earlier measure indicated that while most tax savings reached consumers, approximately 200 million euros of the total 1.6 billion euro relief package was retained by oil corporations, according to the Monopolkommission.

The mineral oil industry association En2x maintained on Monday, 5 October 2026, that its member companies passed on the tax cut in full from the opening hours of the program. The association argued that without the relief measure, fuel prices at affiliated stations would have been 17 cents per liter higher at all times since the beginning of October. En2x also pointed to higher wholesale procurement costs on international markets as a factor in recent price movements. Independent economic researchers, consumer protection advocates, the Bundeskartellamt, and the Ifo Institute had previously questioned whether filling station networks passed on previous tax reductions in their entirety.