Belgium Faces Twin Budget Crises as Austerity Pressures Mount

Belgium is confronting a severe multi-level fiscal squeeze, with the Walloon regional government demanding an additional €2 billion in savings and the federal Arizona coalition preparing to vote on a controversial wage indexation cap — the “centenindex” — while simultaneously needing to close an estimated €7 billion budget gap. The twin pressures underscore the deepening fiscal constraints facing the country at every level of government.

Wallonia Sounds the Alarm

Walloon Minister-President and Budget Minister Adrien Dolimont (MR) has warned that existing savings plans are insufficient and that the region must find an additional €2 billion in cuts over three years to reach budget equilibrium by 2029. Speaking to RTBF, Dolimont described the situation as an “alarm signal” he has been sounding since becoming Budget Minister in 2022.

“We currently have a debt burden — that is, the interest the Region pays each year to repay this debt — which is enormous and could become unsustainable,” Dolimont said. He noted that debt service now exceeds €900 million per year, equivalent to roughly €600 per active person in Wallonia. “Today, the money we give to banks prevents us from implementing policies.”

The warning comes just weeks after Moody’s downgraded Belgium’s sovereign credit rating from Aa3 to A1 on April 18, 2026, citing the country’s rising debt-to-GDP ratio and constrained ability to address budget pressures. The downgrade automatically increased borrowing costs for Wallonia, compounding the region’s structural fiscal challenges.

Walloon Health Minister Yves Coppieters (Les Engagés) has cautioned that working on spending alone is insufficient and that revenue must also be addressed. Dolimont, however, insists that while he prefers to work on the expenditure side, he has “no taboos” about revenue measures, pointing to a planned car vignette that he says will remain “fiscally neutral for the Walloon citizen.”

Federal Level: The Centenindex Showdown

At the federal level, all eyes are on Thursday’s parliamentary vote on the program law — a sweeping collection of reforms from the November 2024 budget agreement that aims to save €9.2 billion. Central to the debate is the “centenindex,” a mechanism that caps automatic wage indexation twice during the current legislative period.

The government argues the cap is necessary to control public spending and maintain competitiveness. Critics, including unions and the Christian democratic CD&V party, argue it unfairly penalizes workers and reduces government revenue through lost tax and social security contributions.

According to Het Laatste Nieuws, CD&V chairman Sammy Mahdi has called the centenindex a “soup chicken that must drown as quickly as possible.” Despite fierce resistance, CD&V will vote for the program law on Thursday, with a party source stating: “We are not going to sabotage the government.”

However, CD&V insists the fight is not over. Mahdi has demanded that an alternative proposed by the social partners — the “Group of 10” representing employers and unions — must come back on the table in upcoming budget discussions starting next week. The alternative proposes a slower pass-through of energy prices based on a 12-month average, which would smooth price spikes.

New calculations by the Central Council for Business (CRB) show the alternative would bring in €100-133 million per year more than the centenindex, rising to €189-208 million after 2030. The Federal Planning Bureau calculated the alternative would yield approximately €18 million more per year by 2030.

Coalition Dynamics

The positions of the five Arizona coalition parties remain divided. Prime Minister Bart De Wever’s N-VA wants the centenindex to remain, though it is open to discussing the index “later” but “not to reverse things.” MR chairman Georges-Louis Bouchez has left the door open to revisiting the mechanism, stating: “It’s not because you vote a text that you can’t correct it within three weeks, a month, two months.” Vooruit remains convinced the original centenindex protects purchasing power better than the alternative.

Meanwhile, Federal Budget Minister Vincent Van Peteghem (CD&V) has acknowledged the government needs to find “probably €7 billion” more to prevent the budget gap from growing. The program law also includes a flight tax increase from €5 to €10, a securities tax increase from 0.15% to 0.30%, and pension reforms including a malus for early retirement.

Union Protests Intensify

The austerity drive has sparked sustained opposition from labor unions. Six national union demonstrations have been held since 2025 against the Arizona government’s policies, with 40,000 participants on May 12, 2026 alone. ACV chair Ann Vermorgen has proposed an alternative budget that could generate nearly €30 billion through equal taxation of labor and capital, a wealth tax, and reduction of corporate subsidies. ABVV leader Bert Engelaar described the government’s policy as a “social demolition site.”

What to Watch

With the program law expected to pass on Thursday, attention will shift to the broader federal budget discussions targeting completion by Belgium’s National Day on July 21. Key questions include whether CD&V can secure a replacement of the centenindex with the social partners’ alternative, how the €7 billion federal gap will be filled, and whether Wallonia’s additional €2 billion in cuts will trigger political instability within the MR-Les Engagés coalition. Union protests may escalate if further austerity measures are announced, adding another layer of pressure on a government already navigating treacherous fiscal waters.