Can Bouchez block new taxes while Belgium finds €10 billion by 2029?

MR president Georges-Louis Bouchez

Place

Brussels

Belgian region where the effects of federal measures may differ and where many Belgium Pulse readers and EU staff are based.

Why it matters

Belgian region where the effects of federal measures may differ and where many Belgium Pulse readers and EU staff are based.

About

The City of Brussels is the largest municipality and historical centre of the Brussels-Capital Region, as well as the capital of the French Community of Belgium, the Flemish Region, and Belgium. The City of Brussels is also the administrative centre of the European Union, as it hosts a number of principal EU institutions in its European Quarter.

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The intervention drew a clear liberal boundary around negotiations that are due to culminate in the autumn budget conclave. Bouchez’s Mouvement Réformateur wants the additional correction to come primarily from lower public expenditure and structural reforms, rather than a new levy on wealthy households or businesses. The distinction matters because €10 billion is not a small accounting adjustment: it is equivalent to roughly €830 for every Belgian resident, although the eventual measures will not be divided evenly and could be phased in over several years.

The government chose the larger figure after receiving a bleak assessment from the Monitoring Committee. Its 6 July report projected a €25.7 billion deficit for the federal administration and social security in 2026, equal to 3.9% of gross domestic product. Without corrective measures, that shortfall would rise to €44.5 billion, or 5.7% of GDP, by 2031. For all Belgian public authorities combined, debt was projected to climb from 107.9% of GDP in 2025 to 122.6% in 2031.

BX1 reported that Prime Minister Bart De Wever

Person

Bart De Wever

Belgian prime minister leading the federal coalition responsible for the budget objective.

Why it matters

Belgian prime minister leading the federal coalition responsible for the budget objective.

About

Bart Albert Liliane De Wever is a Belgian politician who has served as the Prime Minister of Belgium since February 2025. From 2004 to 2025, De Wever had been the leader of the New Flemish Alliance (N-VA), a political party advocating Flemish independence. From January 2013 to February 2025, he was Mayor of Antwerp, following the 2012 municipal elections.

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That uncertainty is the real business story. Cutting subsidies, departmental budgets, pensions or healthcare produces a different economic effect from raising consumption, property or capital taxes. Employers may welcome restraint on payroll charges but still lose public contracts or investment support. Workers may avoid a new deduction on their payslip yet face tighter benefits or more expensive public services. For households, the relevant question is therefore not simply whether a measure is called a tax, but how it changes disposable income, energy costs, transport, healthcare and job security.

Belgium enters the debate with little comfortable room on either side. The Federal Public Service Finance applies progressive personal-income-tax rates ranging from 25% to 50% for 2026 income, before municipal surcharges and social contributions. That supports Bouchez’s argument that labour is already heavily taxed. But refusing every new source of revenue narrows the menu of politically feasible measures and shifts more of the adjustment towards spending, tax exemptions or enforcement.

The European Commission adds another complication. Its May forecast put Belgium’s overall deficit at 5.2% of GDP in 2026, unchanged from 2025, and expected debt to rise from 107.9% of GDP in 2025 to 112.8% in 2027. The Commission also noted that existing consolidation combines spending restraint with additional receipts from VAT, capital-gains taxation and financial-sector measures. In other words, the government is already using both sides of the ledger even as Bouchez seeks to prevent another tax layer.

The National Bank of Belgium, the country’s central bank and a central economic stakeholder, forecast in June that growth would slow from about 1% in 2025 to 0.6% in 2026 while inflation averaged 3.4%. It expected public debt to approach 115% of GDP in 2028. That weak-growth setting makes the composition and timing of consolidation important: abrupt household tax increases could suppress consumption, while indiscriminate spending cuts could weaken demand, investment and essential services.

The political divide is consequently about distribution as much as arithmetic. MR argues that Belgium should reduce the state’s cost and preserve incentives to work and invest. Parties and constituencies favouring a broader contribution from high incomes, capital or corporate structures contend that an expenditure-only approach would place too much pressure on social protection and public services. The European Commission’s structural analysis offers a third perspective: Belgium taxes labour heavily but also maintains numerous exemptions and tax-induced distortions, suggesting that shifting or simplifying taxation is not identical to increasing the total burden.

Bouchez’s declaration is therefore best understood as an opening veto, not the conclusion of the budget process. The coalition has agreed on the size and deadline of the correction but not its contents, annual distribution or household impact. Ministers will work on proposals from early September before the conclave. The points to watch are whether MR accepts the removal of existing tax advantages as something other than a new tax, how coalition partners protect their social and economic priorities, and whether the final package produces durable savings rather than one-off receipts. Until those choices are published and costed, no government party can say precisely who will pay for Belgium’s €10 billion adjustment.