Ordinary Ledger: a fuel price cap with three tripwires, no formula and no promised cent

If you drive, two dates on your calendar now belong together. The tank rebate of roughly 17 cents a litre ends on 31 December, and the coalition agreed in September that a fuel price cap should follow on 1 January 2027². On Monday evening tagesschau reported that the economy ministry’s first draft of that law had reached the ARD’s Berlin studio¹. It is a careful document, and it is careful mostly about when the cap should not apply.

The ledger. - Trigger: petrol and diesel must each rise by more than five percentage points above the average price increase in the other EU states, for three weeks in a row, on European Commission figures^1,2. - Who checks: the fuel market transparency unit at the Bundeskartellamt, every week². - What it is called: a crisis instrument “in the most extreme emergency”, set by government ordinance¹. - How long: three months at most, and it can be suspended if supply is at risk¹. - Where: the federal states may set their own, higher or lower, ceilings, even for individual districts, according to the ADAC’s reading of the draft^1,2. - How high: not stated. The formula is left to a later ordinance, and the ministry says the law can promise “neither the level of a possible maximum price nor a guaranteed price cut”².

Why it is built like this. The ministry’s worry, as it told dpa, is that a cap set too low could make deliveries unprofitable, so that “imports could fail to arrive”¹. The model is Belgium and Luxembourg, where a formula has capped pump prices since a 1974 agreement in Belgium’s case; there the ceiling moves with crude and transport costs and stops excessive mark-ups, not high prices². The ADAC expects a cap to trim daily average prices “at most slightly” and warns against inflated hopes².

The politics, in one line each. Saarland’s premier Anke Rehlinger (SPD) called the draft “a fuel-price-cap prevention law”, because three weeks is a long time to wait¹. The SPD’s economic spokesman in the Bundestag, Sebastian Roloff, says it is not what the coalition agreed¹. The draft is only in early coordination inside the government¹.

At your tank. Nothing changes this week. Budget for January as if the rebate simply ends, because that is the one date already fixed²; treat any cap as a possible brake on spikes, not a discount. Until 31 December the cheapest move remains the dull one: under the rule that lets stations raise prices only once a day at 12:00, the ADAC advises filling up shortly before noon³. Nothing here is investment advice.