The Ministry of Finance and Public Credit raised the supplementary diesel subsidy by 11%, to 2.63 pesos per liter, for the week of October 24 to 30, 2026. With that adjustment, the federal government has now gone seven consecutive weeks without collecting the Special Tax on Production and Services (IEPS) on that fuel, according to Bloomberg Línea.
The 100% IEPS stimulus for diesel, equivalent to 7.36 pesos per liter, remained unchanged and, together with the supplementary support, totals 9.99 pesos per liter, the largest support for diesel so far in 2026, according to Expansión. The decision comes with Brent above US$116 per barrel, in an environment of armed conflicts and restrictions on diesel exports. For Mexico, diesel is an input for freight transport, agriculture and industry, so its price feeds into the cost structure and inflation. The government also maintains a voluntary agreement with business leaders to keep diesel below 27 pesos per liter.
In the same week, Treasury raised the IEPS rates on gasoline: Magna went from 2.71 to 3.46 pesos per liter, with a tax stimulus of 3.24 pesos, equivalent to 48.3% of the maximum rate; Premium rose from 1.91 to 2.78 pesos, with support of 2.88 pesos, 50.8% of the cap. The supplementary diesel subsidy went from 2.3533 to 2.63 pesos per liter. With the supports, the national average diesel price held at 27.00 pesos per liter, against a reference of 36.99 pesos without stimuli. The annual maximum rate is 6.70 pesos per liter for Magna and 5.66 pesos for Premium.
Treasury reviews the adjustment every week through a decree in the Official Gazette of the Federation; the current period ends on October 30 and the next decree will define the support for the first week of November. With Brent above US$116 per barrel, the fiscal cost of sustaining the diesel price tracks the evolution of crude and the peso exchange rate.
This article was written with the assistance of artificial intelligence based on verified sources and reviewed by a human editor before publication.