Mexican workers saw their buying power shrink last year even as their nominal wages rose, according to a new report from the Organization for Economic Co-operation and Development. The finding places Mexico among a small group of countries where labor taxes grew faster than wages in 2025 — a dynamic that economists say quietly erodes living standards without making headlines.
The OECD’s annual Taxing Wages report, released this week, tracks what workers across its 38 member countries actually take home after income taxes and social security contributions. For Mexico, the picture for 2025 was a net real income loss of 2.4% — meaning the average worker ended the year with less purchasing power than they started with, despite earning more pesos on paper.
Mexico was one of only seven OECD nations where that happened. The others were Spain, Austria, Estonia, Germany, South Korea, and the United Kingdom. Estonia led the group with an 11.5% real income decline, followed by the United Kingdom at 2.7%. Mexico came in third.
How the Tax Wedge Works
The report’s central measure is the “tax wedge” — the gap between what an employer pays to hire someone and what that worker actually takes home. It combines income tax and Social Security contributions from both the employee and the employer, then subtracts any cash benefits the worker receives.
For context, Mexico’s overall tax wedge remains well below the OECD average. In 2024 — the most recent year with full comparative data — a single worker without children in Mexico faced a tax wedge of about 20.9%, compared to the OECD average of 34.9%. Belgium topped the list at over 52%, followed by Germany and Austria.
So Mexico isn’t taxing workers heavily in absolute terms. The problem identified in the 2026 report is a different one: the rate at which taxes increased in 2025 exceeded the rate at which wages grew. When wages rise, but tax brackets don’t adjust proportionally for inflation, workers drift into higher effective tax rates — a phenomenon sometimes called “fiscal drag.” That’s what happened in Mexico last year.
Low Wages Compound the Problem
The real-income squeeze matters more in Mexico because baseline wages are already modest. As covered previously on Yucatán Magazine, wage inequality in the state remains stark, with the average statewide salary around 7,390 pesos (about US$370) per month in 2024 — well below what researchers estimate a family needs for basic necessities.
At those income levels, even a modest erosion in purchasing power hits harder than it would in a higher-wage economy. A 2.4% real decline on a 7,000-peso monthly salary is roughly 170 pesos (about US$8.50) — not trivial for a household already stretched thin.
The Broader Picture
The news wasn’t all grim globally. The OECD found that in 28 of its 38 member countries, post-tax real incomes rose in 2025, as wage growth outpaced tax increases in most places. And across the full OECD, effective tax rates rose for all eight household types the report examines — the fourth consecutive year of increases for single workers — though the increases were modest in most cases.
Mexico’s tax-to-GDP ratio, which captures the overall burden relative to the size of the economy, remains among the lowest in the OECD at around 17% of GDP, far below the OECD average of roughly 34%. In that sense, the structural tax burden on Mexicans is light. But as the Taxing Wages 2026 report makes clear, the direction of travel in 2025 worked against workers — and that’s the number that showed up in people’s wallets.
At a Glance
- Mexico was one of 7 OECD countries where taxes on wages grew faster than wages in 2025
- Workers lost an estimated 2.4% in real purchasing power after taxes last year
- Mexico’s tax wedge for a single worker: ~20.9% (OECD average: 34.9%)
- Countries with higher real-income losses: Estonia (11.5%), United Kingdom (2.7%)
- Mexico’s tax-to-GDP ratio remains among the lowest in the OECD at ~17% of GDP
- 28 of 38 OECD countries saw post-tax real incomes rise in 2025