Could France trigger another eurozone debt crisis?

Government bond yields have risen sharply across much of the developed world in recent months, driven by higher energy prices, renewed inflation concerns, and increased borrowing. However, the rise in French yields has been particularly pronounced, reflecting growing concerns about the country's deteriorating public finances and political instability.

In this month’s commentary, we examine some of the key questions facing investors.

What's been happening in French bond markets?

The yield on France's benchmark 10-year government bond has risen by around 1.5 percentage points since the conflict in the Middle East began in late February, reaching almost 5% in early October. [1]

More revealing has been the widening gap between French and German government bond yields, which has reached around 140 basis points [2], its widest since the eurozone debt crisis of 2011-12. This difference, or spread, measures the additional return investors demand for lending to France rather than Germany, traditionally considered the eurozone's safest borrower. It suggests that investors perceive that lending to the French government has become riskier.

Remarkably, French government borrowing costs have recently exceeded those of Italy [3] and Greece [4], countries traditionally regarded as less creditworthy borrowers.

Why are investors losing confidence in France's public finances?

France has struggled to control government spending and budget deficits for many years. Public debt has risen from around 98% of Gross Domestic Product (GDP) in 2019 to around 119% this year, while the budget deficit is expected to reach 5.4% of GDP this year, comfortably exceeding the EU's 3% limit [5].

France has not recorded a government budget surplus for more than 50 years, partly reflecting the political difficulty of containing public spending. Pensions are a substantial burden, accounting for around 23% of total public expenditure (or 13.4% of GDP) [6].

President Macron's 2023 pension reforms aimed to increase the retirement age gradually from 62 to 64, helping to contain expenditure as the population ages. However, following widespread opposition, further implementation of the increase has been suspended until 2028, delaying some of the expected savings.

Recent student protests over underfunded schools and teacher shortages illustrate the competing pressures facing the government. Indeed, the authorities have already made additional spending commitments in response to the protests [7], at a time when they are trying to reduce expenditure.

Will the government manage to pass its 2027 budget?

The proposed 2027 budget, presented on 1 October, aims to reduce the deficit from 5.4% of GDP this year to 5% next year through spending restraint and tax increases. It includes Euro 43 billion of new measures, bringing the total planned fiscal adjustment to Euro 54 billion [8].

However, even if implemented in full, government debt is still projected to rise to almost 122% of GDP in 2027 [9]. In other words, the measures would slow the deterioration in France's finances rather than reverse it.

There are also doubts about the budget's economic assumptions. The government expects economic growth of 1% in 2027, but France's independent fiscal watchdog considers this optimistic [10]. Weaker growth would make the deficit target harder to achieve.

Securing parliamentary approval will also be difficult. Prime Minister Sébastien Lecornu's minority government faces considerable opposition to spending cuts and tax increases ahead of next year's presidential election.

One possibility is that the government invokes Article 49.3 of the French Constitution, allowing it to pass the budget without an ordinary parliamentary vote. However, this would expose the government to a possible vote of no confidence, potentially forcing it to resign.

Alternatively, concessions to opposition parties could weaken the planned fiscal adjustment, while prolonged deadlock could leave France without an approved budget at year-end [11].

Could the 2027 presidential election make matters worse?

The presidential election in April and May 2027 adds another layer of uncertainty. There is no obvious prospect of a lasting resolution to France's fiscal difficulties before the election, while its outcome may not resolve the political deadlock.

National Rally leader Marine Le Pen, who is ahead in the opinion polls, has sought to reassure investors by proposing Euro 140 billion of savings by 2032 and tighter rules on government borrowing [12]. However, there are questions about whether these savings are achievable alongside commitments to reduce taxes and keep the state retirement age at 62 [13].

Meanwhile, Jean-Luc Mélenchon, on the far left, has advocated more expansionary fiscal policies and suggested cancelling part of France's government debt held by the central bank, raising concerns about the treatment of bondholders [14].

Even a newly elected president could face another fragmented parliament, making the sustained reforms needed to stabilise debt difficult to implement.

Could France face a sovereign-debt crisis?

France's fiscal position is undoubtedly challenging, but there is an important distinction between having a serious long-term debt problem and facing an immediate inability to borrow.

France remains one of Europe's largest economies, with a substantial tax base and deep government bond markets. Investors are still willing to lend to the government, albeit at increasingly high interest rates.

The longer-term concern is debt sustainability. Persistent deficits, weak growth and rising borrowing costs threaten to push public debt ever higher. Although France benefits from having issued much of its debt when interest rates were lower, higher refinancing costs will gradually increase its interest bill.

In mid-October, the International Monetary Fund (IMF) indicated that the rise in French borrowing costs is manageable in the short term, but adds to pressure for a credible medium-term consolidation plan beyond the 2027 budget [15]. In a July 2026 report, the organisation concluded that France’s short-term risk of sovereign debt distress remained low, benefiting from a liquid bond market with diversified investors, but it assessed the overall debt distress risk as moderate [16].

What could cause French bond spreads to widen further or narrow?

Much will depend on the outcome of the budget negotiations and whether investors believe France can implement a credible plan to stabilise its public finances.

Failure to pass the budget, another government collapse or weaker-than-expected economic growth could push spreads wider. Credit-rating downgrades or fiscal promises that investors consider unrealistic could also undermine confidence.

Market conditions could amplify these movements. Hedge funds have become increasingly important participants in European government bond markets, and the rapid unwinding of leveraged trading positions could exacerbate sell-offs [17].

Conversely, passage of a credible budget, stronger growth or signs of improving fiscal discipline could help restore confidence. Spreads might also narrow if investors judge French bonds to have become excessively cheap relative to their underlying risks.

Could this trigger another eurozone debt crisis?

The eurozone crisis of the early 2010s demonstrated how concerns about one country's finances can spread rapidly to others. As investors began questioning the creditworthiness of Greece and subsequently other eurozone governments, borrowing costs surged, threatening the stability of European banks and ultimately the euro itself.

To put the current turmoil into perspective, the spread between Italian and German 10-year government bonds exceeded 500 basis points during the 2011 crisis, more than three times the level recently reached by French spreads [18].

Banks are an important channel through which financial stress can spread. A sharp decline in government bond prices can weaken their financial positions or increase funding costs, potentially prompting them to restrict lending. This can weaken economic growth and make governments' debt problems harder to manage. European banks are better capitalised than in 2011, reducing the risks on this front.

However, there are already signs of contagion to other eurozone sovereign bond markets, notably Italy [19], where the 10-year yield spread over German Bunds has widened by around 25 basis points since the end of August, reaching approximately 110 basis points [20].

There is also the risk of a self-reinforcing crisis. Unlike the US or the UK, France cannot independently create the currency in which its debt is denominated. A loss of investor confidence could therefore push yields higher, worsening concerns about debt sustainability and triggering further selling.

Would the ECB intervene?

The European Central Bank has considerably more tools available to contain a sovereign-debt crisis than it did in 2011.

Most importantly, its Transmission Protection Instrument (TPI), introduced in 2022, allows it to purchase government bonds when disorderly market movements threaten the effective transmission of monetary policy across the eurozone.

However, the TPI is not intended to protect governments from the consequences of unsustainable fiscal policies. The ECB must consider whether a country's finances are sustainable and whether it is complying with European fiscal requirements.

For now, intervention appears unlikely. France is already subject to the EU's excessive deficit procedure, while much of the widening in spreads would appear to reflect concerns about its public finances [21].

Nevertheless, there is a broader political dimension. During the 2012 eurozone crisis, then ECB President Mario Draghi famously pledged to do "whatever it takes" to preserve the euro. A severe French debt crisis could similarly threaten confidence in the monetary union, potentially strengthening the case for intervention. As a first step, the ECB could slow or suspend Quantitative Tightening (QT), the process of reducing its bond holdings.

Yet the ECB would face a difficult dilemma. Unconditional support could weaken incentives for France to repair its finances, while imposing painful austerity as a condition of assistance could fuel anti-EU sentiment. Although leaving the euro is not currently a policy of France's main opposition parties, a prolonged crisis could heighten tensions between France and European institutions.

The ECB might therefore be prepared to tolerate considerably wider French spreads before intervening, but be much less willing to tolerate a genuine threat to the survival of the euro.

What does all this mean for investors?

For existing holders of French government bonds, rising yields mean falling bond prices and mark-to-market losses, with longer-dated bonds generally suffering the largest declines. However, higher yields also offer new investors more attractive prospective returns.

Higher government bond yields can also push up corporate borrowing costs, squeezing profits and leaving less money available for investment and dividends. Higher financing costs may also weaken economic growth, particularly affecting companies reliant on domestic demand.

Rising yields can also weigh on equity valuations. Higher interest rates reduce the present value of expected future profits and dividends, potentially putting downward pressure on share prices even if earnings expectations remain unchanged.

French equities have underperformed markedly since the beginning of August, and have fallen around 2% year-to-date, compared to a rise of around 7% in the eurozone as a whole [22]. Not all of this underperformance can be attributed to rising French bond yields. Weaker global demand for luxury goods and motor vehicles has also weighed on sectors to which the French equity market has significant exposure.

French bank shares have been particularly hard hit by rising yields, reflecting concerns about losses on government bond holdings, higher funding costs and weaker lending growth. An index tracking the performance of French banks has fallen nearly 20% since the beginning of August [23].

The turmoil has also weakened the euro, which has fallen to a 16-month low against sterling [24], weighing on returns of unhedged euro-denominated investments for UK investors.

A full-blown debt crisis is not necessary for rising French bond yields to weigh on equities and other financial assets. Investors should therefore monitor whether French bond spreads widen further, and whether the turmoil spills over into other eurozone sovereign debt markets and the European banking system.

16 October 2026

[1] https://tradingeconomics.com/france/government-bond-yield

[2] https://www.worldgovernmentbonds.com/spread/france-10-years-vs-germany-10-years/

[3] https://www.worldgovernmentbonds.com/spread/italy-10-years-vs-france-10-years/

[4] https://www.worldgovernmentbonds.com/spread/greece-10-years-vs-france-10-years/

[5] https://www.euronews.com/2026/09/29/frances-public-debt-soars-to-a-record-119-of-gdp

[6] https://www.oecd.org/content/dam/oecd/en/publications/reports/2025/11/pensions-at-a-glance-2025_76510fe4/e40274c1-en.pdf

[7] https://www.reuters.com/world/french-student-protesters-vow-keep-up-their-fight-after-scoring-first-win-2026-10-09/

[8] https://www.reuters.com/business/france-demands-belt-tightening-2027-budget-investors-sour-its-debt-2026-10-01

[9] https://www.lemonde.fr/en/politics/article/2026/09/19/french-public-debt-to-reach-new-record-level-in-2027-exceeding-120-of-gdp_6757714_5.html

[10] https://www.bloomberg.com/news/articles/2026-10-01/france-s-budget-watchdog-warns-economic-scenario-is-optimistic

[11] https://www.reuters.com/world/how-frances-2027-budget-battle-could-play-out-2026-10-01/