The Briefing
- Mexico's finance ministry filed a 2027 budget on September 8 targeting a public deficit of 3.9% of GDP, narrower than 2026's 4.1% but wider than the 3.5% goal officials had floated back in April.
- Physical infrastructure spending — roads, rail, water works — climbs 3.5% in real terms to roughly 1.03 trillion pesos, even though total public investment spending falls 12.3% once financial support for Pemex is stripped out.
- Mexico's actual 2025 deficit missed its own target: independent analysts who reviewed the government's year-end report put it at 4.8% of GDP, not the roughly 4.3% Hacienda had been forecasting.
- The peso and Mexico's borrowing costs matter directly for remittance-dependent households in the U.S. and Mexico, especially after Moody's stripped Mexico of a credit-rating notch in May and a new 1% U.S. remittance tax took hold in January.
Mexico's government wants to spend less than it takes in — just not quite as much less as it promised a few months ago. The finance ministry, led by Secretary Édgar Amador Zamora, delivered the 2027 budget proposal to Congress on September 8, penciling in a public-sector deficit of 3.9% of gross domestic product. That's narrower than the 4.1% pegged for this year, but it lands short of the more ambitious 3.5% target Hacienda had been signaling to markets as recently as April.
For readers north of the border, the fine print matters more than the headline. A credible path on Mexico's deficit keeps the peso steadier and Mexican borrowing costs lower — both of which ripple straight into remittance purchasing power and into the manufacturing investment decisions tied to the nearshoring boom along the U.S. trade corridor.
A Softer Deficit Target Than Promised in the Spring
This is the third spending package of President Claudia Sheinbaum's term, and it comes with a wrinkle worth flagging for anyone tracking the numbers closely. Back in April, Hacienda's own pre-budget estimates pointed to a 2027 deficit of just 3.5% of GDP, and economists at Finamex, BBVA México and Citi Banamex were already skeptical the government could hit even that. The package actually filed this week sets the bar looser, at 3.9% — still an improvement on 2026, just not the improvement officials had been promising.
Widen the lens further and the trajectory gets messier still. The deficit, measured by the broadest gauge Mexico uses — the Public Sector Borrowing Requirements, or RFSP — stood at 5.7% of GDP in 2024, the last year of the López Obrador administration. Hacienda had targeted roughly 4.3% for 2025 as it built the 2026 budget. But once the year actually closed, independent analysts who dug into the government's own fourth-quarter report found the real number came in at 4.8% of GDP — a full point above Hacienda's original 3.9–4.0% goal, not the tidy 4.3% that gets repeated in most budget-season write-ups. That's a detail worth knowing before taking next year's 3.9% target at face value.
Where the New Money Actually Goes
The government's pitch is that infrastructure, not welfare, is the growth engine for 2027. On that narrow point, the numbers back it up: physical investment — highways, new passenger and freight rail, water works and energy projects — rises 3.5% in real terms to about 1.03 trillion pesos, close to 2.6% of GDP, according to an analysis of the budget document itself. Separately, Hacienda is promoting a 5.7-trillion-peso pool of public and mixed investment running from 2026 through 2030 for water, energy and transport under the Plan México nearshoring strategy — the broader push to lock in manufacturing supply chains tied to the United States.
But zoom out to total investment spending, and the picture flips: it actually drops 12.3% in real terms, because the financial-support line for Pemex — the item that mainly funds debt relief rather than new construction — is being slashed nearly 70%, from roughly 263.5 billion pesos this year to just 81.1 billion in 2027. In other words, Mexico isn't spending less on new roads and trains; it's spending far less propping up its state oil company's balance sheet, and redirecting some of that room toward physical works instead.
The Welfare-Versus-Investment Fight Playing Out in Real Time
That framing runs into a harder political reality already visible this year. Official figures for 2026 so far show public investment down 7.9% in real terms even as welfare-program spending climbed 9.7%, with social programs now equivalent to roughly 3% of GDP against physical investment holding near 2.5%. Sheinbaum has pushed back directly on the idea that one is crowding out the other. "No es uno en vez del otro, son todos al mismo tiempo" — it's not one instead of the other, they're all happening at the same time — she told reporters at her September 7 morning briefing.
It's a tension Hacienda has faced before. When the 2026 budget was first unveiled last September, it proposed 1.3 trillion pesos for physical investment, which Morena deputy Alfonso Ramírez Cuéllar called unprecedented, insisting the package left Mexico "alejados de los peligros de inestabilidades" — far from the dangers of instability, he told reporters at the time. Whether that promise survives contact with a rigid budget built around constitutionally locked-in pensions and welfare transfers is exactly the question the 2027 numbers are now testing.
Why Rating Agencies — and Remittance Senders — Are Watching
The stakes go beyond bookkeeping. Moody's stripped Mexico of a full credit-rating notch in May, cutting the sovereign to Baa3 — one step above speculative grade — and cited an inflexible spending structure, a shallow revenue base and Mexico's ongoing habit of bailing out Pemex as the reasons, even as it shifted its outlook to stable. S&P, meanwhile, has held its BBB rating — two notches above speculative territory — but shifted its own outlook to negative, citing weak investment and mounting deficit pressure.
That fiscal credibility question filters directly into household budgets on both sides of the border. A new 1% U.S. tax on cash-based remittances took effect January 1, and BBVA Research had projected remittances to Mexico would close 2025 down roughly 4.7% — a forecast that proved almost exactly right once the year closed, with Mexico recording its first annual remittance decline in 11 years. A steadier peso, underwritten by credible fiscal numbers, stretches those dollars further for families receiving them; a wobblier one does the opposite.
What Comes Next
Sheinbaum framed the package in broad strokes during her September 1 government report, describing it as "responsible" and built around gradual fiscal consolidation without cutting off financing for public investment, welfare programs, health or education. Education, science, health and security budgets all climb faster than inflation for 2027 — roughly 10.7% to 13% each versus this year — while tax revenue is targeted to hit a record 15.9% of GDP without any new taxes.
Congress has a constitutional deadline of November 15 to approve the final package, and the debate between now and then will likely turn on the same question already dividing analysts: whether a government facing rising pension costs, a still-climbing debt load — projected to reach 55% of GDP in 2027, up from 54% this year — and a Pemex rescue that keeps recurring can actually hold the line it just drew for itself.
