Household economy
CPI edges back towards 5%: energy makes the basket dearer and winter looks expensive
September inflation climbed to 4.9%, the highest since February 2023, with fuels up more than 27% in a year. We review which items are pushing the rise and how to adjust the household budget before winter.
Source: National Statistics Institute (September 2026 CPI) and the Spanish consumers' organisation OCU.
Key takeaways
Diesel is up 34% and petrol 27.5% year-on-year: filling the tank costs between 15 and 20 euros more than last September.
- Headline CPI rose to 4.9% year-on-year in September, six tenths above August, and core inflation ticked up two tenths to 3.1%.
- Energy explains two points of the rise: liquid fuels +64.7%, diesel +34%, petrol +27.5% and electricity +11.4% year-on-year.
- Twenty-nine basket items now rise by more than 5% a year, a sign that inflation has spread beyond energy.
What is pushing prices
Oil hovers around 105 dollars a barrel due to the Middle East conflict, and diesel is additionally hit by wider refining margins. Electricity stays high on the regulated tariff because of expensive gas and weak renewable output in recent weeks.
The fuel-tax rebate stays in place in November because pump prices exceed the 15% year-on-year threshold, but it only acts as a partial buffer: pump prices are still a quarter higher than a year ago.
What it means in euros for an average household
The consumers' organisation warns the rise has become broad-based: 29 items grow more than 5% year-on-year. In practice, a household spending 3,000 euros a month two years ago now needs around 3,300 for the same living standard, with the bulk of the hit coming from transport, heating and fresh food.
Concrete budget adjustments before winter
With energy soaring, the biggest available saving is reviewing your electricity tariff (regulated versus free-market deals), trimming contracted power and comparing petrol stations: the gap between the dearest and cheapest stations in the same city tops 15 euros per tank.
Quick tips
- Review your electricity tariff before December: with the regulated tariff at high levels, a fixed-price deal can cut the bill by 10-20%.
- Bundle trips and review subscriptions: with transport 10.5% dearer, every avoidable journey saves more than it did a year ago.
- Do not adjust the budget on a single month's figure: use a three-month average to decide which items to trim sustainably.
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