Fuel Tax Rebate Mostly Reached Consumers, German Study Finds

A recent analysis by the Leibniz Institute for Economic Research (RWI) indicates that Germany's fuel tax rebate, implemented on May 1, 2026, has largely benefited consumers. The study, which is available to DIE ZEIT, found that the tax relief for diesel fuel was passed on more than completely, with prices dropping by an estimated 18.4 cents per liter, exceeding the expected 17 cents.

For gasoline, the price reduction was less pronounced, with prices falling by 13.2 cents per liter, approximately 80% of the tax cut. The RWI attributes this to a concurrent market intervention, the "12-hour rule," introduced on April 1, which allows gas stations to adjust prices only once daily at noon. This rule reportedly led to a price increase of about 4.7 cents per liter for gasoline shortly before the tax rebate took effect, complicating the interpretation of the rebate's impact.

Despite the observed pass-through to consumers, the RWI advises against extending the fuel tax rebate beyond its scheduled expiration on June 30, 2026. Researchers Patrick Thiel, Manuel Frondel, and Colin Vance argue that the measure is "ecologically counterproductive" and represents a significant financial burden on the state, costing over a billion euros. They suggest that the full extent of the rebate's pass-through can only be accurately assessed after the policy concludes.

Similar criticisms have been voiced by the ifo Institute, which contends that the fuel tax rebate does not effectively target those most in need, such as low-income commuters. Instead, it primarily benefits individuals who drive frequently or operate vehicles with high fuel consumption. The rebate was introduced to mitigate the impact of soaring fuel prices following the war in Ukraine.