Finance Ministry removes the tax subsidy for Premium gasoline and cuts support for Regular and diesel amid energy-market pressures

The IEPS adjustment increases the government’s fiscal “cushion” on fuels and could put pressure on inflation and logistics costs if oil shocks persist.

Mexico’s Ministry of Finance and Public Credit (SHCP) removed, for the week of April 18–24, the tax stimulus on the Special Tax on Production and Services (IEPS) applied to Premium gasoline, meaning consumers will pay the full levy of 5.66 pesos per liter. The decision follows a month in which this fuel did receive partial discounts, and comes amid heightened volatility in international crude oil prices and refined products.

In practical terms, the move means a meaningful portion of the final price is once again driven by taxes: with a national average near 28.31 pesos per liter for Premium, the federal IEPS charge amounts to roughly one-fifth of the retail price, not including other components such as marketing margins, logistics, and VAT. Removing the support does not, by itself, imply an automatic price jump at every station, but it does reduce the room to cushion increases if the international benchmark price rises or if the peso depreciates.

Finance also cut the stimulus for diesel, a key fuel for freight transportation. The discount will be 43.17% (well below the prior week’s 80.3%), leaving the federal IEPS charge at 4.18 pesos per liter. For Regular gasoline (Magna), the stimulus drops to 11.67%, and the levy is set at 5.92 pesos per liter—the lowest level of support in recent weeks.

The IEPS stimulus policy works like an adjustment valve: when energy prices rise, the government can “give up” part of its tax take to soften the pass-through to consumers; when prices stabilize or when the goal is to strengthen revenue, the stimulus tends to shrink. In a year of heightened sensitivity for households and businesses, these moves often reflect the delicate balance among inflation, public finances, and the costs of economic activity.

Potential impact: inflation, transportation, and public finances

Cutting the stimulus for diesel and Regular has implications that go beyond the cost of filling up. Diesel is a cross-cutting input for trucking, so a higher effective IEPS can translate into higher logistics costs and, gradually, pressure on prices for food, parcel delivery, and consumer goods. In the case of Regular—Mexico’s most widely consumed gasoline—the adjustment may be felt more quickly in household budgets, particularly in cities where mobility depends on cars and in regions with less competition among service stations.

From a macroeconomic perspective, changes to the IEPS become relevant for the inflation path. Mexico has made progress on disinflation, but it remains exposed to supply shocks—energy and food—that can complicate convergence toward Banco de México’s target. If the international rise in oil prices persists or if geopolitical disruptions intensify, the reduction in stimuli could make the pass-through to prices more visible, increasing the risk that core inflation takes longer to ease.

For public finances, by contrast, reducing stimuli can strengthen IEPS revenue and provide greater budget breathing room in an environment of rigid spending and investment needs. The fiscal cost of these stimuli was significant during recent episodes of energy price spikes; for that reason, each weekly adjustment also sends signals about the government’s willingness to sustain support, the available fiscal space, and the priority placed on keeping consumer prices stable versus other objectives.

In the short term, the ultimate impact will depend on the trajectory of international fuel quotes, the peso’s performance against the U.S. dollar, and local distribution margins. In a market that combines substantial fuel imports, regional logistics differences, and uneven competition, the “pass-through” of an IEPS change can be uneven: some areas reflect adjustments quickly, while others absorb them for brief periods.

Looking ahead, attention will be on whether Finance expands stimuli again in response to a sustained oil rally or, instead, prioritizes normalizing the tax to shore up revenue. Either way, the IEPS will continue to function as a thermometer: when support is reduced, the government is betting that international prices or the exchange rate will allow the market to absorb the cost without unanchoring expectations; when it is increased, the goal is to prevent an energy shock from spreading to the rest of the economy.

In sum, removing the Premium subsidy and reducing support for Regular and diesel increases the tax component of fuel prices, with potential effects on transportation costs and inflation, while improving revenue collection; the balance will depend on how persistent external pressures are and how the domestic market responds.