Belgium’s Decisive Week on Pension Reform and Program Law
The Belgian Chamber of Representatives has entered a critical week of debate over two major legislative packages — the pension reform and the program law containing the controversial “centenindex” — as the government of Prime Minister Bart De Wever attempts to push through flagship fiscal policies that have faced repeated delays. The outcome will determine whether the Arizona coalition can deliver on its core economic agenda.
The Two Dossiers at Stake
The pension reform, championed by Pension Minister Jan Jambon (N-VA), introduces a bonus-malus system that reduces pensions by 5 percent per year of early retirement and increases them by 5 percent per year worked beyond the legal retirement age. It also tightens the definition of a career year from 104 to 156 working days, phases out the 1.05 coefficient for civil servants from 2027, and raises the retirement age for NMBS rail staff and military personnel. As Jambon told VRT NWS, “You can hardly explain that university professors can retire earlier than nurses or construction workers.”
The program law is an omnibus bill bundling budget decisions from late 2025. Its most contentious measure is the centenindex, which caps automatic wage indexation for monthly salaries above €4,000 and benefits above €2,000. The law also includes higher excise taxes on gas, oil, and fuels, lower taxes on electricity, and increased taxes on securities accounts, insurance, banks, and airline tickets. The centenindex can be applied a maximum of two times during this government term — once in 2026 and once in 2028.
A History of Delays
Both dossiers have faced relentless opposition maneuvering. The pension reform appeared ready for a vote in mid-May, but opposition parties — including PVDA, Vlaams Belang, PS, Ecolo-Groen, and Défi — filed amendments and requested an opinion from the Council of State, putting the process on hold. The government has requested expedited treatment, bringing the reform back to the agenda this week.
The program law has fared even worse. It has failed at least five times to reach a plenary vote. A chaotic session on April 29 saw opposition MPs walk out after heated exchanges. MR party president Georges-Louis Bouchez accused the opposition of creating “chaos” and “mess” in Belgian democracy, as reported by RTBF. Last week, coalition member Anders (formerly Open VLD) sent the entire package back to committee, revealing internal divisions over the centenindex.
The Inflation Time Bomb
Thursday’s inflation figure adds urgency. If the pivot index is exceeded in May rather than June, the centenindex must be published in the State Gazette before June 1 to apply to the next indexation of public sector wages and benefits. Missing this deadline would force the government to fully index those payments three months later, dealing a significant blow to the budget.
Internal Coalition Tensions
The centenindex has exposed fractures within the five-party coalition. Anders sent the program law back to committee after proposing to replace the centenindex with an alternative from the social partners — a proposal the government has publicly rejected. CD&V has also expressed discomfort, though the party has indicated it will not block the legislation.
What Happens Next
According to VRT NWS, the PVDA plans a new attempt to file amendments and request another Council of State opinion, which would delay the pension reform vote if 50 MPs support the motion. Vlaams Belang has so far shown little inclination to back this effort.
For the program law, early signals are more positive, though previous weeks have also raised expectations only to see them dashed. If the law fails again, the government faces a choice between accepting full indexation — with severe budgetary consequences — or renegotiating the package under intense time pressure.
The pension reform measures are scheduled to take effect on January 1, 2027, giving the government slightly more breathing room. But for the program law, the clock is ticking. Thursday’s inflation data may well determine whether the Arizona coalition can claim a much-needed legislative victory or faces its most serious crisis yet.