Debt, taxes and Europe: the market risks in LFI and RN’s plans

A government can cut taxes and make credit more expensive. It can also tax shareholders more heavily while improving the revenue available to service public debt. Understanding French political risk means following these channels separately: government funding, company earnings and the durability of the rules underpinning financial contracts.

La France insoumise (LFI, or France Unbowed) and Rassemblement national (RN, or National Rally) address all three, with different priorities. LFI seeks to redistribute income, increase investment and regain control over public financing. RN promises to reduce selected taxes, protect purchasing power and pay for the measures through savings, several of which depend on legal changes or European negotiations. Their shadow budgets for 2026 provide a basis for looking beyond campaign slogans. [6] [7]

The most important difference is where each programme concentrates uncertainty. For LFI, major questions concern the yield of new taxes, returns to capital and relations with the central bank. For RN, they centre on whether promised savings will materialise, national preference and the compatibility of certain measures with European rules. Both programmes also involve intervention in companies and assumptions about future revenue.

This analysis separates political intentions, the parties’ own costings and possible economic consequences. It treats risk as a mechanism to examine, including both the factors that amplify it and those that can contain it.

France already carries political risk

At the end of June 2026, Maastricht general government debt stood at €3,595.5 billion, or 119.0% of GDP, according to Insee’s release of 29 September 2026. The figure covers all general government bodies. Debt increased by €59.6 billion from the first quarter, for which the figures were revised. This change includes financial operations and differs from the budget deficit. [1]

The central government’s indicative funding programme for 2026 provides for €310 billion of medium- and long-term issuance, net of buybacks. This second figure concerns the state’s financing over a year and includes replacing maturing bonds. Comparing it directly with the deficit alone would obscure that refinancing activity. [2]

The constraint begins here. A government must finance its new decisions while continuing to replace debt as it matures. It can raise additional revenue, reduce expenditure or support enough economic activity to improve the public accounts. Throughout that transition, it still needs buyers for its securities.

Markets adjust the price they demand for that commitment. When investors see greater uncertainty around France’s trajectory, they may require a higher yield to hold a French government bond than a German bond of comparable maturity. This differential, the OAT-Bund spread, includes several components: credit risk, liquidity, demand for safety and factors specific to each country. It is a useful signal that needs to be interpreted in context.

In an analysis published on 22 September 2026, Natixis describes the ten-year spread as having returned to around 105 basis points, compared with roughly 60 in early June. The bank links French tensions to the fiscal outlook and political instability, against a backdrop also shaped by higher rates and the energy shock. These are dated observations and market analysis. Assigning a particular number of those basis points to LFI or RN would be arbitrary. [3]

Professional concern about both political groups is documented. On 24 June 2024, Allianz Global Investors highlighted the fiscal risk associated with RN and expressed particular concern about several policies of the left-wing coalition, including wealth taxation and price controls. On the same day, Amundi emphasised political uncertainty and the sensitivity of financial stocks and utilities. These were asset managers’ assessments in the specific setting of France’s 2024 snap election. [4] [5]

Selling shares may reflect an expected reduction in distributable profits. Selling OATs may signal concern about the state’s funding. A manager may also reduce a position to comply with a risk limit. These decisions address different questions and carry different implications for the economy.

Two speeds of transmission

Outstanding bonds change price as soon as the required yield changes. The fixed coupons promised by the state remain contractual. The higher cost to the public budget then works through gradually, as new debt is issued and old debt is refinanced.

For an illustrative order of magnitude, imagine €100 billion of new borrowing with an annual financing cost one percentage point higher. It would cost approximately €1 billion more for each full year. This deliberately simple example is separate from any forecast for France: the actual bill depends on issuance dates, maturities and the composition of the debt.

A confidence shock can therefore reduce portfolio values quickly and weigh on public finances over time. It can also raise the funding costs of banks and companies. That movement from securities prices to financing the real economy gives political risk its systemic importance. Liquidity constraints on some holders can amplify that movement, as discussed in our investigation of hedge funds and French debt.

A comparative risk matrix

The matrix compares transmission channels. It leaves probabilities open: a measure may be negotiated, amended, phased in, dropped or implemented with a different source of funding. The proposals are documented; the causal sequences represent an analysis of their possible effects.

LFI: redistributing income and changing who controls funding

The promised fiscal improvement depends on actual collections

LFI’s shadow budget for 2026 claims an improvement in the public balance of approximately €27 billion relative to the government proposal it addresses. It combines new spending with a substantial increase in revenue and the removal of schemes it considers ineffective. The claimed balance therefore rests on changing tax bases and redistributing the burden. [6]

Its main measures include restoring a wealth tax with a climate component, a minimum tax targeting wealth above €100 million, reforming the taxation of capital income, levies on dividends and share buybacks, and the reduction of exemptions and tax reliefs. LFI also proposes stronger public services, higher pay and support for ecological investment. [6]

There is an identifiable economic logic: transfer resources towards households and public services likely to spend more, while financing long-term investment. For a creditor, the practical question is how the calculated revenue becomes money actually received by the government.

A new tax needs a defined base, enforcement arrangements, payment dates and procedures for disputed cases. Taxpayers can change distributions, ownership structures and investment decisions. Some revenue arrives with a delay. Expenditure on pay or benefits, by contrast, can create recurring commitments from the moment the measure takes effect.

The proposed minimum tax of 2% of wealth illustrates the issue. In LFI’s presentation, it tops up taxes already paid when they fall below the floor. Its yield must therefore be calculated alongside other wealth-tax reforms, including the restoration of the ISF. Adding independent estimates without checking their interactions could count part of the same tax effort twice. The relevant object is the combined system. [6]

A revenue shortfall would force a choice between additional borrowing, slower implementation of spending or other taxes. The fiscal risk lies in that capacity to adjust, especially when social commitments are politically difficult to change.

Capital taxation deserves a better model than universal flight

The claim that wealthy taxpayers would leave en masse as soon as taxes rise is too crude to serve as a risk model. France’s Conseil d’analyse économique, or CAE, has studied the French reforms of 2013 and 2017-2018. It finds that departures respond to taxation, but that the flows are small in absolute terms and the aggregate economic effects through this channel are limited. [14] [15]

The scope of that finding matters. The research concerns emigration and draws on observed reforms. Its authors stress other behavioural responses: avoidance, saving, wealth accumulation, entrepreneurship and the decisions of taxpayers who remain in France. Extrapolation to much larger policy changes introduces further uncertainty. [14] [15]

That evidence redirects the investigation towards more useful questions. Assessing a tax on large fortunes requires examining the valuation of unlisted equity, holding-company rules, opportunities to defer income and the liquidity available to pay. An entrepreneur can own highly valuable shares while having relatively little personal cash. Payment and valuation rules can then influence the revenue raised as much as the headline tax rate.

For listed shares, the mechanism can be more direct. A lasting increase in the tax on distributed profits may reduce the net income expected by some holders. They may require a lower purchase price or a higher pre-tax return. The scale depends on which investors are affected, their tax regimes and the adjustments available to companies.

The social outcome may simultaneously favour households receiving the redistribution. A share price and the collective value of a policy answer different questions. Market analysis needs to preserve that distinction.

Wages, prices and investment produce intersecting effects

The 2024 NFP coalition programme proposed a statutory minimum wage of €1,600 net a month, freezes on selected essential prices and a reversal of pension reform. LFI’s own shadow budget includes a higher minimum wage, a 10% increase in the civil-service pay index, and an immediate return of the pension age to 62, followed progressively by 60 with 40 contribution years. These are the amounts and objectives stated in the dated documents. [6] [8]

Higher wages at the bottom of the income distribution can support consumption. Their cost also feeds through companies according to labour intensity, margins and the ability to adjust selling prices. LFI proposes support for smaller businesses; its funding, eligibility rules and delivery schedule matter when assessing the net effect. [6]

When costs rise while selling prices are controlled, a business must absorb the difference, improve productivity or receive compensation. Public compensation transfers part of the cost back to the budget. Regulation can therefore change who pays, with different consequences for consumers, workers, shareholders and the state.

Investment spending operates on another horizon. A stronger electricity grid or an energy-efficiency renovation can provide services for decades. The Pisani-Ferry and Mahfouz report on climate action highlights both the scale of the financing requirement and the cost of postponing the transition. It considers a contribution from high-wealth households among the funding options, while also identifying short-term economic transition costs. This provides an economic rationale for public action and a reason to scrutinise its timing. [28]

LFI therefore faces a two-part test: preserve the expected benefits of redistribution and investment while managing the cash-flow pressures and behavioural changes created by their financing.

“Freezing” debt: the identity of the creditor changes the analysis

On 8 September 2026, Jean-Luc Mélenchon published a note advocating the conversion of part of the public debt held by the central bank into perpetual debt paying a low or zero rate. The document puts the amount at approximately €600 billion; that is the proposal’s own estimate. Its target is the public-sector portfolio of the Eurosystem, comprising the ECB and the euro-area national central banks. [11]

In that specific proposal, securities held by private investors fall outside the stated scope. The initial risk for their holders would come through the institutional and financial consequences of the negotiation: relations with the ECB, the treatment of losses, confidence in future commitments and the terms of new borrowing.

A perpetual bond retains a claim without a repayment date. At a zero rate, it also gives up all interest income. For the Treasury, the benefit is the refinancing avoided and the interest saved. For the central bank, the economic value of the asset falls sharply. Keeping a nominal amount on a balance sheet leaves the question of the abandoned income flows unresolved. The effect on the statistical debt stock would depend on the instrument’s legal form and accounting treatment. Relief from scheduled payments and a possible reduction in the debt ratio must therefore be assessed separately.

On the other side of its balance sheet, the Eurosystem retains liabilities, including bank reserves. Paying interest on those reserves can continue to generate a cost. The ECB itself explains how the gap between income from assets and interest paid on liabilities can produce losses. Those losses may reduce future distributions to national central banks and, in turn, public budgets. [18] [19]

A central bank has a distinctive ability to operate despite losses. The ECB’s accounts for 2023 provide a concrete example: the loss was carried forward and the institution continued conducting monetary policy. The relevant debate concerns the lasting distribution of the cost, future income and monetary independence. [19]

The legal obstacle is explicit. Article 123 of the Treaty prohibits central-bank overdrafts and direct financing of public authorities. In a written reply dated 23 April 2021, the ECB also regards the cancellation of government debt as incompatible with that prohibition. Structuring the measure as a perpetual bond therefore requires resolving the objection, including an assessment of its economic substance. A decision taken by France alone would leave the disagreement unresolved. [17] [22]

LFI’s wider project adds other elements. Its shadow budget proposes a citizens’ debt audit preparing a negotiated rearrangement of the portion deemed illegitimate, financing facilities from the ECB, and a requirement for banks operating in France to hold a minimum amount of Treasury bills expressed by reference to their own funds. The text leaves the scope and terms of the negotiated rearrangement to be specified. [6]

That last proposal creates a less frequently discussed channel. Compulsory holdings of domestic government debt would offer the state a more stable source of demand. They would also strengthen the connection between French banks and French sovereign risk. Assessing the trade-off would require the mandated amounts, remuneration, maturities and prudential treatment. The choice would affect the allocation of credit across the economy.

On 22 September, Mélenchon also criticised inflation-linked bonds. Reducing their role would alter the distribution of inflation risk between the state and its lenders. The cost of nominal borrowing also depends on investors’ inflation expectations, however. This is a debt-issuance strategy whose expected savings require a comparison of financing conditions. AFT’s indicative programme for 2026 allocates approximately 10% of net medium- and long-term issuance to inflation-linked securities. [12] [2]

Nationalisation adds valuation and governance risk

LFI’s shadow budget names a broad range of nationalisations, including in energy, telecommunications, water and industry. The scale of this project changes expectations about ownership, dividends and investment decisions at the companies concerned. [6]

French law provides a compensation framework. Article 17 of the 1789 Declaration requires a legally established public necessity and fair, prior compensation. The Constitutional Council’s January 1982 nationalisation decision demonstrates the practical importance of reviewing compensation arrangements. [25] [26]

Financial analysis must therefore examine the transfer price, the financing of the acquisition and the future business model. The state acquires an asset in return for its financing; its cash requirements and industrial exposure change with the terms of the transaction. A shareholder whose equity is being acquired and a creditor who might benefit from public support can reasonably reach opposite conclusions about the same deal.

RN: tax relief funded by savings still to be delivered

Business-friendly measures can put pressure on sovereign funding

RN’s shadow budget for 2026 claims a €35.6 billion improvement in the public balance, rounded to €36 billion in its presentation. Its annex includes €16.2 billion from abolishing production taxes on business premises (CFE), value added (CVAE) and turnover (C3S), and an energy VAT reduction costed at €10.96 billion. These are RN’s estimates relative to the government’s October 2025 budget proposal. [7]

There is a sound economic argument for reducing certain production taxes. They can fall on a company before it makes a profit. The CAE has documented the cascading effects of the turnover-based C3S on production chains and competitiveness. Its 2019 note differentiates between the taxes: it prioritises the C3S, then proposes abolishing the CVAE, while finding the CFE’s distortions less substantial. [16]

A business may therefore benefit from an RN measure. Lower charges can improve margins, investment capacity or selling prices. The public budget still needs replacement funding on a timetable compatible with the tax reduction.

The shadow budget relies, among other measures, on an €8.7 billion reduction in France’s contribution to the European Union, €7.7 billion of savings on public agencies and operators, and €7.2 billion associated with removing preferential purchase tariffs for renewable electricity. These amounts depend on very different mechanisms. Adding them in a column produces a total; establishing their availability requires a separate case for each. [7]

Abolishing an agency while retaining its functions transfers some spending elsewhere in government. Savings depend on which activities are genuinely discontinued, the contracts and staffing involved, and the cost of reorganisation. RN’s economic booklet explicitly envisages bringing some services back into government departments. The operation needs to be assessed across all the public bodies concerned. [10]

The same care is required for transfers between budgets and the consolidation of off-budget schemes. Moving a private charge or an earmarked mechanism into the general budget changes its presentation and incidence. Revenue, the spending taken over and the identity of the final payer must be followed together.

The distinctive risk in this construction is the timing gap: tax relief can take effect while several savings remain subject to negotiation or administrative change. Making relief conditional on delivery of the savings would reduce financial risk, at the cost of delaying campaign commitments.

National preference also puts projected savings at risk

RN estimates that a requirement for five years of full-time-equivalent employment in France before foreign nationals could access certain solidarity benefits would save €6.1 billion. Its economic booklet also advocates national preference in employment and social housing. A financial assessment must identify precisely who would be affected, their rights, enforcement arrangements and consequences for other public revenue. [7] [10]

Spending removed from one beneficiary can reappear elsewhere as emergency assistance, local support, litigation or administration. Restrictions affecting access to work can also change hiring and social contributions. The scale of these effects depends on the final law and employers’ responses. A net costing needs to address them explicitly.

The constitutional precedent deserves an accurate reading. In January 2024, the Constitutional Council struck down the residence or employment conditions introduced by Article 19 of the immigration law because they were an unrelated legislative rider, added without a sufficient connection to the original bill. The decision concerned the procedure of adoption; the substance of those provisions remained to be assessed. [27]

A new measure would consequently depend on its drafting, legislative vehicle, the rights at stake and the categories of people concerned. Fiscal risk arises from possible delay, rejection or a narrower final scope than assumed in the costing. Treating the entire projected saving as immediately available revenue would be imprudent.

National preference also has a production-side dimension. A business that must justify hiring differently, rebuild a team or wait for an authorisation may incur an operating cost. Exposure will vary by occupation, qualification and local labour market. RN’s economic programme allows for recruiting foreign workers with scarce skills; how those provisions operate becomes another part of the risk assessment. [10]

RN also proposes taxes on capital

A simple division between a left that taxes capital and a right that protects it fits the documents poorly. RN’s shadow budget proposes a financial wealth tax, a tax on intraday financial transactions, a levy on unusually high dividends and a tax on share buybacks. It assigns €8.4 billion of revenue to the last of these. The financial-wealth tax would replace the real-estate wealth tax, or IFI, and the holding-company tax in the government proposal used as the baseline. [7]

The yield of a buyback tax depends on how much repurchasing companies continue to undertake after its introduction. They can change the timing, retain cash or choose other forms of distribution, depending on the overall tax system. An estimate based on unchanged behaviour would therefore require sensitivity analysis.

A shareholder can benefit from lower production taxes paid by a company while facing higher taxation on personal wealth or distributions. The combination varies by asset and holder. It explains why a political label is much less informative than a close reading of tax bases.

RN also favours strategic equity stakes. Its shadow budget includes purchases of golden shares in Atos, Arcelor and Opella. Such shares are intended to give the state particular rights. Their scope differs from LFI’s nationalisation list, but they still raise questions about governance, veto powers and value for other investors. [7]

Energy and pensions: the final rules determine the cost

Reduced energy VAT is a central RN commitment. European law distinguishes between products. Annex III of the VAT Directive permits reduced rates on electricity and, until 1 January 2030 under the framework examined here, on natural gas and firewood. Road fuels are treated differently: extending a reduced rate across the promised range requires a change to the applicable rules. [24]

RN acknowledges the constraint in a statement dated 24 September 2026. Jean-Paul Garraud announces a proposed resolution seeking revision of the VAT Directive and distinguishes this from excise reductions already possible within certain limits. A political resolution, followed by any eventual amendment of the directive, introduces a timetable and a European negotiation into the French promise. [29]

For renewables, the savings depend on the difference between ending support for new projects and changing existing contracts. The first alters future investment. The second raises contractual questions, possible compensation and a reassessment of regulatory risk by lenders and investors. RN’s support for nuclear development also entails an industrial timetable and financing requirements. [7] [10]

On pensions, the shadow budget’s annex allocates €1.5 billion to launching Marine Le Pen’s reform. That is a start-up amount. The economic booklet restates a system linking pension age and contribution requirements to the age at which a person entered employment, including retirement at 60 for some careers begun before 20. Its full-run cost must be assessed using the affected cohorts, their contributions and the benefits paid. [7] [10]

Recent political statements add an important qualification. According to LCP’s account, on 12 September 2026 Marine Le Pen preferred an “imperfect” but “operational” budget to a stopgap special budget law, while retaining conditions concerning taxes and pensioners. That position could reduce the short-term risk of a budget impasse. It also exposes the financing constraint when some savings and tax increases are ruled out simultaneously. [13]

Europe connects fiscal risk with institutional risk

An almost identical saving in both shadow budgets

LFI proposes cutting France’s contribution to the European Union by €9 billion. RN expects €8.7 billion. This similarity is among the most significant common features of the documents, despite different European projects and political justifications. [6] [7]

The contribution derives from a European own-resources system and shared budget commitments. The 2020 decision governs, among other things, how member states make those resources available. A government seeking a durable reduction needs to negotiate changes to commitments or to the distribution of funding. A unilateral reduction would open a dispute about payments due. [23]

For markets, the issue then extends beyond the sum involved. Creditors want to know how a government handles commitments that conflict with its programme, what outcome it expects from negotiation and how it funds the intervening period. A European saving booked for the first year requires a fallback if agreement takes longer.

France’s economic size gives it negotiating weight. Its funding needs also impose a timetable. Leverage works in both directions.

The ECB’s safety net comes with conditions

The Transmission Protection Instrument, or TPI, allows the ECB to buy securities in the secondary market to counter disorderly movements that threaten monetary-policy transmission. The instrument includes an assessment of fiscal policies, debt sustainability and compliance with European commitments. Activation is a decision for the Governing Council. [20] [21]

One point prevents a frequent misreading: a country subject to an excessive deficit procedure can remain eligible when it takes the required effective action. The mere existence of that procedure does not determine access to the instrument. The ECB also distinguishes unwarranted market tensions from financing difficulties justified by a country’s fundamentals. [20]

For an investor, prolonged fiscal confrontation therefore creates uncertainty about the support available precisely when funding conditions deteriorate. A programme relying on ECB agreement needs to explain the path to that agreement and provide financing for a period of disagreement.

The question is especially direct in LFI’s funding proposals. It also concerns RN wherever European savings, institutional changes or regulatory exemptions are necessary to balance the programme. RN’s economic booklet itself envisages negotiating changes to the ECB’s mandate. [6] [10] [11]

This analysis remains within a scenario of France staying in the euro area. Conflict over European rules and departure from the single currency are separate scenarios. The documents reviewed allow the first to be studied closely; automatically attributing the second to both parties would add a major electoral assumption.

Very different effects across assets

Government debt concentrates trajectory and refinancing risk. A budget may strengthen revenue through higher taxes or reduce expenditure through reform. Creditors assess the durability of the outcome, its timing and its resilience to weaker growth. A policy that improves private profits while weakening government funding can produce opposite reactions in equities and bonds.

Banks connect sovereign risk with the wider economy. They hold securities, raise funding themselves and lend to households and businesses. A deterioration in French risk can affect all three activities. The accounting impact of a price decline depends on portfolios, classifications and hedges; an economic loss need not appear fully in immediate earnings. LFI’s proposal to require additional domestic sovereign holdings would strengthen an exposure that needs measuring bank by bank. [5] [6]

Regulated businesses are sensitive to decisions on prices, contracts and ownership. For an energy operator, a concession or a company targeted for state intervention, the stability of expected revenue matters alongside tax rates. LFI and RN operate in this area with different instruments and sectoral priorities. [6] [7] [10]

Smaller businesses are more exposed to their immediate operating environment. A reduction in property-related business tax, a higher wage bill, borrowing costs or a change in recruitment rules can dominate their results. Redistribution that supports demand may help them; new costs or administrative delays may absorb the benefit. Each business model requires examination.

Large international groups spread part of their exposure across countries. Amundi highlighted that revenue diversification in June 2024. Their French exposure still needs to be assessed through taxation, headquarters, subsidiaries, local assets and governance decisions. [5]

This diversity explains an apparent contradiction: a price decline can make an asset more attractive to a new buyer while damaging its current holder’s portfolio. The price of risk and the existence of risk evolve together, with different consequences according to the position each investor holds.

Three scenarios for an incoming government

A phased programme with verifiable funding

In this scenario, the government publishes a complete trajectory, sequences its measures and prepares alternatives when revenue disappoints. Tax reforms have precise rules. Sensitive savings are documented before they finance permanent commitments. European negotiations follow a timetable compatible with cash requirements.

LFI could reduce uncertainty by securing collections and separating investment from recurring expenditure. RN could do so by making relief conditional on deliverable savings and specifying the full cost of pension reform. Some sectors would still gain or lose; sovereign risk would depend on the consolidated balance and the growth achieved.

Promises take effect before their funding

Spending or tax cuts begin while revenue and savings arrive later. The deficit worsens relative to the announced scenario. The government borrows more, then part of the additional financing cost feeds into subsequent budgets.

For LFI, this could result from less productive tax bases, disputes, delayed collection or a smaller-than-expected effect on activity. For RN, it could come from slower administrative savings, rewritten benefit rules or delayed European negotiations. In either case, credibility depends on how quickly the government adjusts implementation.

A prolonged conflict over rules and commitments

The government persists with a trajectory that depends on institutional changes still in dispute. Lenders must assess several possible outcomes: agreement, retreat, a new parliamentary majority, changes to contracts or new constraints on capital holders. Legal uncertainty compounds fiscal uncertainty.

Market risk becomes harder to contain when companies defer projects and public revenue slows just as the state pays more to borrow. A strong majority can make measures easier to enact. It can also provide more capacity to sustain confrontation. A weak majority may constrain some proposals while prolonging budget gridlock. Seat counts must therefore be read alongside the substance of the political agreement.

These are analytical scenarios. Their realisation depends on policy decisions, the constraints encountered and the economic backdrop. Assigning numerical probabilities today would require an explicit electoral and macroeconomic model.

The decisive test: funding the programme when an assumption fails

The first useful document after an election victory would be a multi-year trajectory linking the programme to a clearly identified budget baseline. It should distinguish recurring from temporary revenue, specify the changes requiring European agreement and show how expenditure develops before reforms reach their full yield.

The second test would concern tax bases and contracts. For LFI, the interaction of wealth taxes, treatment of Eurosystem-held debt and terms of nationalisations would be decisive. For RN, net savings on benefits and public bodies, energy commitments and the projected yield of buyback taxation would require particular attention.

The first budget outturns should then be compared with the announced path. A government that explains a shortfall, documents it and adjusts its measures gives creditors more useful information than one that simply repeats its initial total.

LFI more directly exposes investors to changes in income distribution, ownership and monetary financing. RN exposes them to a programme of tax relief whose funding partly depends on uncertain savings and sensitive European or social-policy changes. Their overlap on some instruments, including the EU contribution and several taxes on capital, prevents the comparison from being reduced to two perfectly opposite camps.

France’s inherited fiscal fragility makes these choices more sensitive. An economic policy can be ambitious, redistributive or business-friendly and still have credible funding. The decisive risk question is how it responds when growth, tax collections or European negotiations disappoint. That is where promises become a debt trajectory, a market price and, ultimately, a cost for the economy.

For the mechanics of bond-market transmission, see our analysis of France’s 2027 budget and sovereign debt risk.

Sources and documents

1. Insee: general-government debt at the end of the second quarter of 2026

   29 September 2026. Maastricht debt, nominal amount, debt-to-GDP ratio and publication schedule.

2. Agence France Trésor: indicative state financing programme for 2026

   30 December 2025. Medium- and long-term issuance net of buybacks; planned share of inflation-linked bonds.

3. Natixis CIB: France, Facing Headwinds

   22 September 2026. Dated market assessment: OAT-Bund spread, fiscal outlook, growth and the interest-rate environment.

4. Allianz Global Investors: France elections and markets

   24 June 2024. An asset manager’s assessment of RN and left-wing coalition scenarios during the 2024 legislative election.

5. Amundi: French markets amid snap elections

   24 June 2024. Political uncertainty, financials and utilities, and international diversification among French companies.

6. LFI parliamentary group: 2026 shadow budget

   October 2025. Party proposals and costings: taxation, pay, pensions, nationalisations, debt and EU contributions. Revenue estimates are LFI’s own.

7. RN parliamentary group: 2026 shadow budget

   October 2025. Proposals and costed annex, particularly PDF p. 7: production taxes, VAT, savings, capital taxation, pensions and golden shares. Estimates supplied by RN.

8. Nouveau Front populaire: programme for the 2024 legislative election

   2024; copy hosted in a 2026 directory. Coalition programme: minimum wage, prices and pensions. The hosting directory does not change the programme’s election year.

9. L’Avenir en commun: programme page

   page checked on 29 September 2026. Announces that an update is under way. This investigation attributes no measure to a new version not yet available on that page.

10. RN: La France entreprend, Marine Le Pen’s business-policy booklet

    no explicit publication date in the version examined. National preference, public agencies, pensions and European policy. Page 2 describes an updated version of the 2022 programme, without dating the update. It is used as a statement of policy direction.

11. Jean-Luc Mélenchon: proposal to freeze public debt held by the central bank

    8 September 2026. Note published on his website: perpetual debt at a low or zero rate, Eurosystem scope and the authors’ stated amount.

12. Jean-Luc Mélenchon: criticism of inflation-linked government bonds

    22 September 2026. Statement used to establish his position on inflation-linked OATs; its quantitative claims about their cost are not treated as established facts.

13. LCP: Marine Le Pen’s conditions for the 2027 budget

    14 September 2026; speech delivered on 12 September. Report of her preference for an imperfect but operational budget, subject to political conditions.

14. Conseil d’analyse économique: Focus No. 118 on capital taxation and tax-related emigration

    2025. Study by Laurent Bach, Antoine Bozio, Nicolas Grimprel, Arthur Guillouzouic, Camille Landais and Clément Malgouyres. Empirical findings, scope and extrapolation limits.

15. CAE: press release accompanying Focus No. 118

    2 September 2025. Summary of migration effects and other behavioural responses to taxation.

16. CAE: Note No. 53 on production taxes

    June 2019. Separate assessments of C3S, CVAE and CFE; effects on production and competitiveness.

17. ECB: written reply to Engin Eroglu on government-debt cancellation

    23 April 2021. The ECB’s legal position on monetary financing and Article 123 of the Treaty.

18. ECB: Profits and losses of the ECB and the euro area national central banks

    explainer, version accessed on 29 September 2026. Asset income, remuneration of reserves, losses and distributions to governments.

19. ECB: Financial statements of the ECB for 2023

    22 February 2024. Documented example of a carried-forward loss alongside continued monetary-policy operations.

20. ECB: The Transmission Protection Instrument

    21 July 2022. Eligibility criteria, fiscal sustainability, response to EU recommendations and Governing Council decisions.

21. ECB: press conference discussing the TPI

    21 July 2022. Clarification of eligibility assessments and discretion over activation.

22. Treaty on the Functioning of the European Union: Article 123

    consolidated version published on 26 October 2012. Prohibition of central-bank overdrafts, credit and direct purchases of public debt, within the Treaty’s defined scope.

23. Council of the EU: Decision 2020/2053 on own resources

    14 December 2020. Legal framework for financing the Union and making own resources available.

24. Council of the EU: Directive 2022/542 on VAT rates

    5 April 2022. Amendments to Directive 2006/112: Article 98 and Annex III, including electricity and natural gas.

25. Constitutional Council: Declaration of the Rights of Man and of the Citizen of 1789

    1789; constitutional reference text. Article 17: property, public necessity and compensation.

26. Constitutional Council: Decision 81-132 DC, nationalisation law

    16 January 1982. Constitutional review of nationalisations and their terms, including compensation.

27. Constitutional Council: Decision 2023-863 DC, immigration law

    25 January 2024. Paragraphs 91–96 on Article 19: procedural rejection of residence or employment conditions. Official commentary on the decision.

28. France Stratégie: The economic implications of climate action

    22 May 2023. Report by Jean Pisani-Ferry and Selma Mahfouz: investment, funding, transition costs and the cost of postponement.

29. RN, Jean-Paul Garraud: fuel-tax cuts and the VAT Directive

    24 September 2026. Explicit request to revise EU rules to allow reduced VAT on motor fuels.

Method and limitations

Party programmes and statements establish their proposals and their own estimates. European and constitutional texts define the constraints examined. CAE and France Stratégie research informs the economic mechanisms, subject to its limitations. Allianz GI, Amundi and Natixis research documents investor assessments at specific dates.

The balances claimed in the shadow budgets remain political costings relative to the government’s October 2025 proposal. This investigation examines their logic and dependencies; it does not reconstruct a complete costing from individual taxpayer data. The net effects of combined measures, full-run pension costs and the composition of a future governing agreement remain to be established.

The bar chart compares party estimates; the balance-sheet diagram and matrix represent conditional mechanisms. They assign no risk score, price target or default rate to either party. Sources were checked on 29 September 2026, including Insee’s second-quarter debt release published at 8:45 a.m. Paris time. The most recent political statements used are dated 24 September 2026.