Research
Data notes, explainers and analytical reports built from traceable public evidence.
How Cameralius publishes
Data notes
Direct answers to useful factual questions, with definitions, source context and limitations.
Explainers
Durable guides to concepts that must be understood before official numbers can be interpreted correctly.
Analytical reports
Longer work combining multiple governed observations, uncertainty and competing explanations.
Latest research
- How has Belgian government spending changed over the past decade?Belgian general-government expenditure rose from about €224.1 billion in 2014 to €316.4 billion in 2023 — an increase of 41.2% in nominal euros. That sounds like a very… Read more: How has Belgian government spending changed over the past decade?
- How much does Belgium spend on healthcare?Belgian general government devoted 14.787% of its total expenditure to the health function in 2024 — roughly one euro in every seven euros of government spending. Using Belgium’s… Read more: How much does Belgium spend on healthcare?
- What is the difference between Belgium’s federal budget and general-government finances?Belgium’s federal budget and Belgium’s general-government finances describe related parts of the same public-finance system, but they are not the same accounts. The federal budget is principally a… Read more: What is the difference between Belgium’s federal budget and general-government finances?
- Why can Belgium have a large public sector and still run a budget deficit?Belgium can have a large government sector and still run a budget deficit because government size and the government balance measure different things. A large government can collect… Read more: Why can Belgium have a large public sector and still run a budget deficit?
- How much did Belgium spend on public-debt interest in 2025?Belgian general government recorded about €14.3 billion of interest expenditure in 2025, equal to 2.2245% of GDP. That is the annual interest-cost flow in the government accounts —… Read more: How much did Belgium spend on public-debt interest in 2025?
- What were Belgium’s biggest areas of government spending in 2024?Belgium’s largest area of government spending in 2024 was social protection. It accounted for about 37.7% of total general-government expenditure. Health came second at about 14.8%, followed by… Read more: What were Belgium’s biggest areas of government spending in 2024?
- Where does Belgian government revenue come from?Belgian government revenue comes mainly from taxes and social contributions. But government also receives property and investment income, payments for some goods and services, transfers and other receipts.… Read more: Where does Belgian government revenue come from?
- Who held Belgium’s public debt at the end of 2025?At the end of 2025, almost two-thirds of Belgium’s Maastricht public debt was held by non-residents. Official European government-finance data show 68.3554% of GDP in debt held by… Read more: Who held Belgium’s public debt at the end of 2025?
- What is Belgian social security — and what does it actually pay for?Belgian social security is not one benefit, one agency or one pot of money. It is a system of institutions, financing flows and legal rights that protects people… Read more: What is Belgian social security — and what does it actually pay for?
- How does Belgium’s budget deficit become public debt?Belgium’s budget deficit and its public debt are closely connected, but they are not the same number. A deficit is a flow measured over a period; debt is… Read more: How does Belgium’s budget deficit become public debt?
- How much public debt did Belgium have at the end of 2025?Belgium’s general-government gross debt stood at €692.461 billion at the end of 2025, equal to 107.9% of GDP. Cameralius explains what the official figure measures — and what it does not.
- Why two official Belgian government numbers can both be correctTwo official Belgian government figures can differ because they use different institutional perimeters, fiscal stages, budget vintages, accounting bases, reference periods or revision states. Difference does not automatically mean error.