Has Belgium’s economy stalled just as the euro area starts moving again?

Belgium’s economy recorded no quarterly growth between April and June 2026, the National Accounts Institute confirmed on 31 August, leaving real GDP unchanged after a modest 0.2% rise in the first quarter. Output was still 0.5% higher than a year earlier, but that was only half the euro area’s annual growth rate and marked a further loss of momentum for an economy that expanded by 1.0% in 2025.

The headline figure conceals a sharp divide between sectors. According to the detailed national accounts published through the National Bank of Belgium, services grew by 0.3% from the previous quarter, while industrial value added fell by 0.6% and construction declined by 0.2%. The final breakdown was slightly less severe than the flash estimate issued in July, which had indicated falls of 0.8% in industry and 0.5% in construction, but the overall verdict remained unchanged: the Belgian economy was at a standstill.

That matters because Belgium entered the quarter with little room for a broad slowdown. Industry includes export-oriented chemicals, pharmaceuticals, metals and machinery clustered around Antwerp and other logistics corridors, while construction is particularly exposed to financing costs, materials prices and uncertainty over household budgets. Weakness in both sectors can therefore spread through subcontractors, temporary employment and business investment even when the larger services economy continues to expand.

The expenditure figures offer a more nuanced picture. Business AM, reporting the National Accounts Institute’s detailed release, said household consumption rose by 0.4% and residential investment by 0.2% during the quarter. Exports increased by 2.9%, compared with a 1.9% rise in imports, meaning net trade added about 0.8 percentage point to growth. Without that external contribution, domestic activity would have contracted more visibly.

Investment was the principal drag. The same figures showed total fixed investment falling by 1.5%, including a 0.7% decline in corporate investment and an 8% fall in public investment. Quarterly public-investment data can be volatile because large infrastructure or defence purchases are unevenly timed, so the drop should not automatically be read as a lasting withdrawal. Even so, weaker capital spending is uncomfortable for a country trying to raise productivity, renew transport and energy infrastructure, and diffuse the research strengths of institutions such as imec across the wider economy.

For households, zero GDP growth does not mean that every payslip or family budget stopped improving. Employment still increased by about 6,490 people, or 0.1%, during the quarter, according to the detailed figures reported by Business AM. Belgium’s automatic wage indexation also cushions purchasing power when prices rise. But stagnation makes companies more cautious about recruitment and pay beyond indexation, while higher energy costs and mortgage payments can absorb much of the benefit from nominal wage increases. The European Commission expects Belgian inflation to average 3.4% in 2026, up from 3.0% in 2025.

The comparison with Europe is particularly sobering. Eurostat’s preliminary estimate put second-quarter growth at 0.4% in the euro area and 0.5% across the EU, against Belgium’s 0.0%. On an annual basis, the respective rates were 1.0%, 1.2% and 0.5%. Belgium and Austria posted the weakest quarterly results among the countries included in Eurostat’s initial comparison. These figures remain revisable, but they suggest Belgium missed much of the rebound visible elsewhere in the currency union.

The broader explanation combines an energy shock, cautious domestic demand and long-standing competitiveness constraints. In its June projections, the National Bank expected Belgian growth to slow from 1.0% in 2025 to 0.6% in 2026, with inflation reaching 3.4%. It attributed much of the temporary weakness to higher energy prices associated with the conflict involving Iran, while expecting growth to recover to 1.1% in 2027 and 1.3% in 2028. The European Commission’s spring forecast was marginally more optimistic for 2026, at 0.7%, but weaker for the following year, at 0.9%.

There are two legitimate readings of the stagnation. The more reassuring one is that services, household spending, exports and employment all continued to advance, while the National Bank expects the shock to fade. The more cautious reading is that an open, energy-intensive economy has underperformed just as its European market improved, with industry and productive investment moving in the wrong direction. Belgium’s extensive wage indexation protects demand but can also raise labour costs faster than those of trading partners when domestic inflation is higher.

The fiscal setting makes the choice of response harder. The European Commission estimates that Belgium’s public deficit reached 5.2% of GDP in 2025 and will remain at that level in 2026, while gross public debt is projected to rise from 107.9% of GDP in 2025 to 112.8% in 2027. Weak growth reduces tax receipts and makes those ratios harder to stabilise, yet abrupt budget restraint can further suppress consumption and investment. Employers seeking tax and labour-cost relief, trade unions including the FGTB and CSC defending household incomes, and governments seeking deficit reduction are therefore pulling on different parts of the same constrained equation.

The next evidence will come from business and consumer-confidence surveys in September, followed by the National Bank’s third-quarter assessment and the European Commission’s autumn forecast. The central question is whether the second quarter was a temporary pause caused by energy and investment timing, or the clearest sign yet that Belgium’s underlying growth capacity has weakened. For companies, the immediate signals to watch are industrial orders, construction activity and credit demand; for households, they are hiring, inflation and the eventual balance between wage indexation and new fiscal measures.