The fiscal deficit rose in 2024 to its highest level in 35 years. Fiscal consolidation is now underway and should advance, guided by a well-defined set of measures on both the spending and revenue sides. Rising expenditures on interest payments, non-contributory pensions and support for PEMEX have constrained fiscal space, limiting resources for key areas such as education, the digital and green transitions, and the fight against crime. Mobilizing additional revenues would help address priority spending needs and safeguard fiscal sustainability.
Fiscal consolidation is underway and should be maintained overtime. In 2024 the public sector deficit rose sharply (Figure 2), reaching its highest level in 35 years, driven by spending on flagship infrastructure projects, universal non-contributory pensions and additional support to PEMEX, the state-owned oil company. In 2025, the authorities initiated a consolidation process aimed at reducing the deficit to 3% of GDP by 2027. Consolidation efforts in 2025 relied mainly on expenditure restraint, while tax revenues increased only marginally.
Raising revenues and improving the quality of public spending are essential to safeguard fiscal sustainability and create space for productivity-enhancing investments. Public spending remains relatively low and key areas such as education and health already receive less funding than in OECD and regional peers. Expanding revenues and allocating that fiscal space to areas with limited economic returns, such as infrastructure projects with questionable cost-benefit profiles or PEMEX, would also be counterproductive. Establishing a medium-term fiscal framework can improve strategic planning and help reconciling spending needs with fiscal prudence.
A more strategic approach to expenditure planning and prioritisation would boost growth while supporting fiscal consolidation. Basing infrastructure projects on rigorous technical evaluation, clear prioritisation, and strong accountability mechanisms would allow resources to be allocated more efficiently while reducing the risk of cost overruns. Stronger project appraisal systems and greater transparency across the investment cycle are essential to raise the quality of public investment, build public trust, and ensure spending supports medium-term growth. Moving toward targeted non-contributory pensions would ensure that support reaches those most in need, while preserving public resources for future generations and other pressing priorities.
There is room to increase tax revenues. Mexico has the lowest tax-to-GDP ratio in the OECD. More effective use of existing taxes could help raise additional revenues without undermining growth. For instance, authorities are working to strengthen customs duties by addressing under-invoicing through robust enforcement and digital tracking systems. Modernizing the cadastral system would support higher collections from property taxes. Further gains could come from reducing tax expenditures, particularly in VAT, from broadening the carbon tax base, and from enhancing incentives for states to collect the vehicle ownership tax.
Upgrading Mexico’s fiscal framework can help smooth economic fluctuations and provide countercyclical support during downturns. The Fiscal Responsibility Law, enacted in 2006, institutionalised the country’s commitment to fiscal discipline and has been central to maintaining prudence. However, its current design favours short-term discretionary cuts to meet annual targets, making fiscal policy highly procyclical. Upgrading Mexico’s fiscal framework is urgent to strengthen credibility and create space for priority spending. A genuine medium-term framework would reduce procyclicality and facilitate that new revenues are channelled into areas with highest economic and social returns. Introducing a debt anchor and a better-designed expenditure rule would safeguard sustainability.