Mexico Freezes Public Spending Amid Ratings Crunch

Faced with sovereign credit downgrades and an expanding deficit, Mexico has implemented a historic MXN$418 billion public spending freeze. This aggressive fiscal consolidation slows economic growth to a projected 1.1% in 2026, as capital project halts restrict private sector investment and depress tax revenues. This creates a challenging environment for B2B stakeholders navigating rising systemic credit costs and a delayed public infrastructure roll-out.

——

Mexico has sharply curbed public spending during the first five months of 2026, executing a record MX$418 billion (US$24.03 billion) underspend to control its rising fiscal deficit. The cuts, coming amid intense pressure from international credit rating agencies for fiscal consolidation, follow a previous drop in the fiscal deficit from 5.8% of GDP in 2024 to 4.9% in 2025, falling short of the initial 3.9% deficit target.

According to data released by the Ministry of Finance (SHCP), public expenditure reached MX$3.9 trillion (US$224.24 billion) from January to May 2026, falling 9.5% below the programmed budget. Analysis by the independent think tank Mexico Evalúa indicates that this underspend represents 1.2% of Mexico's GDP, marking the largest fiscal under-execution for a January-to-May period since 2005. This austerity measure takes place during a sharp domestic economic slowdown, with private sector analysts forecasting real GDP growth of just 1.1% by the end of 2026.

This spending contraction reflects a strategic effort to reassure international debt markets of Mexico's commitment to fiscal solvency. "The under-spending is strong and has been expanding as the year progresses," stated Iván Arias, Director of Economic Studies, Banamex. Arias warned that consistently halting public capital expenditure throughout the year is highly inefficient, as it stalls essential public investment projects and systematically limits broader domestic economic activity.

In May 2026, S&P Global Ratings revised Mexico's sovereign outlook from stable to negative due to worries that slow fiscal consolidation and stagnant growth would accelerate public debt. S&P Global expects net general government debt to reach 54% of GDP by 2029, up from 49% in 2025. The agency also projects only 1% GDP growth for 2026, reflecting uncertainty over the upcoming USMCA review and private investment contraction.

Shortly after, Moody's Ratings downgraded Mexico's sovereign credit rating to Baa3, citing structural fiscal strain from rigid public spending, a narrow tax revenue base, and continued financial support for Petróleos Mexicanos (PEMEX). Moody's credit analyst Renzo Merino pointed out that interest payments have risen to absorb roughly 17% of government revenues, up from 10% in 2021, severely restricting discretionary spending. This leaves Mexico on the lowest rung of investment-grade status with both Moody's and Fitch Ratings, which maintained its BBB- rating with a stable outlook in April.

Despite these aggressive spending cuts, Mexico’s fiscal deficit continues to widen due to a parallel contraction in tax revenues. Net tax collection dropped 1.4% in real terms during the first five months of 2026, registering its first real-term decline for this period since 2012. This drop weakens the government's primary source of funding for social welfare programs. According to the Center for Economic and Budgetary Research (CIEP), the combination of weak tax collection and rising rigid commitments pushed the primary budget deficit to MX$418.7 billion (US$24.07 billion), representing a 65.3% real annual increase.

The broader metric of public debt, measured through the Public Sector Borrowing Requirements (RFSP), surged by 42% in real terms to reach MX$527.6 billion (US$30.33 billion), pushing the total historical public debt balance to a record MX$18.9 trillion (US$1.09 trillion) by May 2026 —the highest level recorded since 2000 for this five-month period. While Treasury Secretary Edgar Amador maintains that public debt is stable at 50% of GDP and on track to settle at 54.7% of GDP by the end of 2026, independent analysts express skepticism. 

Héctor Villarreal, Director of the Initiative for the Economic and Demographic Transition (ITED), noted that a structural tax reform is unlikely before the 2027 midterm elections. Villarreal warned that expanding social transfer promises alongside a 5% deficit will trigger a severe fiscal adjustment by 2028, presenting a major risk for long-term investments.