France's 10‑year borrowing cost tops 4% as public debt swells

In July 2026 France saw its 10‑year government bond yield rise above 4%, a level not reached since 2009. The surge coincides with public debt climbing to 117% of GDP – roughly €3.5 trillion – and interest costs projected to hit €100 billion.

Analysts link the higher rates to heightened geopolitical tension in the Middle East, where oil prices have hit $100 per barrel, tightening global financing conditions. Economic commentator John Plassard noted that "la France ne refinance heureusement pas l'intégralité de sa dette chaque année," underscoring the strain on debt servicing.

The French government, led by Economy Minister Roland Lescure, is weighing fiscal adjustments, including possible austerity measures, while Minister Sébastien Lecornu warned that "nous ne pouvons pas suspendre toutes les décisions jusqu'en 2027." The rising cost of borrowing also pressures household mortgage rates, making home‑ownership more expensive for many citizens.