Taxes on UK Workers Have Risen at Fastest Rate in Rich World, Says OECD

Why It Matters

Rising labor taxes raise the cost of employment, potentially throttling growth and eroding the UK’s competitiveness while intensifying political pressure on the Labour government’s fiscal agenda.

Key Takeaways

• UK tax wedge grew 2.45 percentage points in 2025.
• Increase driven by higher employer NICs and unchanged inflation‑linked thresholds.
• Britain’s tax wedge at 32.4% remains below OECD average of 35.1%.
• Labour faces criticism as employment‑intensive sectors feel tax pressure.
• IMF warns UK could be hit hardest by any global recession.

Pulse Analysis

The OECD’s annual tax‑wedge study provides a rare cross‑country lens on how much of a worker’s earnings are siphoned off by taxes and social contributions. Britain’s 2.45‑point jump to a 32.4% wedge marks the fastest climb among the 38 wealthiest economies, outpacing the next‑closest Estonia at 1.95 points. While the UK remains under the 35.1% OECD average, the sharp rise signals a tightening fiscal environment that could reshape compensation structures and employer budgeting.

Policy analysts trace the surge to two primary levers introduced in Chancellor Rachel Reeves’s 2024 autumn budget. First, employer National Insurance contributions were lifted, directly inflating the cost of hiring. Second, the budget failed to index tax thresholds to inflation, a phenomenon known as fiscal drag that automatically pushes more earnings into higher tax brackets. Business leaders have decried these moves, arguing they erode profit margins, especially in low‑wage sectors such as hospitality and retail, where the tax burden now cuts more deeply into already thin margins.

The broader macro backdrop compounds the challenge. The International Monetary Fund’s latest outlook warns that any escalation of the Iran conflict could trigger a global recession that would hit the UK harder than its G7 peers. Coupled with a modest dip in unemployment to 4.9%—still above the pre‑election 4.2%—the rising tax wedge may dampen job creation and wage growth. Policymakers will need to balance fiscal consolidation with measures that protect labour market dynamism, lest the tax burden become a drag on the very recovery it aims to fund.