Taxes on workers are skyrocketing, pushing OECD countries to an unprecedented financial milestone in 2024. But here's where it gets controversial: Is this a sustainable strategy for economic growth, or are we placing an unfair burden on the workforce? According to the latest Revenue Statistics 2025 report from the OECD, labor taxes have surged, driving overall tax revenues to a record high. The average tax-to-GDP ratio across OECD nations hit 34.1% in 2024, a 0.3 percentage point increase from the previous year, marking the end of a two-year decline. This shift wasn’t uniform, though—while 22 out of 36 countries saw an increase, 13 experienced a drop, and one remained unchanged. The standout performers were Latvia and Slovenia, with increases of 2.4 and 1.9 percentage points, respectively, largely due to higher social security contributions. Colombia, on the other hand, saw the sharpest decline, dropping by 2.2 percentage points.
And this is the part most people miss: Social security contributions and personal income taxes (PIT) have been the unsung heroes of this revenue boom. In 26 out of 36 countries, social security contributions rose as a share of GDP, while personal income tax revenues increased in 28 countries. Governments have been raising effective tax rates on labor to tackle both short-term and long-term spending pressures. Over the longer term, PIT has been a major driver of tax revenue growth, contributing 0.9 percentage points to the overall 1.8 percentage point increase between 2011 and 2023.
For the first time, the Revenue Statistics report includes a detailed breakdown of PIT revenue by income source for 29 countries. It reveals that employed-labor income remains the primary source of PIT revenue, though its share has been gradually declining since 2011, while income from capital and self-employment has been on the rise. This shift raises important questions about the future of taxation and economic equity.
Here’s a thought-provoking question for you: As labor taxes continue to dominate revenue streams, are we risking over-reliance on workers while under-taxing other income sources like capital gains? The OECD’s report doesn’t shy away from these complexities, inviting policymakers and the public alike to reconsider how we fund our societies. To dive deeper into these findings, check out the full Revenue Statistics 2025 report here. Journalists seeking more information can reach out to Elisabeth Schoeffmann at the OECD Media Office (+33 1 45 24 97 00).
The OECD, a global policy forum collaborating with over 100 countries, continues to champion policies that balance individual liberty with economic and social well-being. But as tax systems evolve, the question remains: Who bears the brunt, and is it fair? Let us know your thoughts in the comments—this is a conversation we all need to have.
