📚 Transparency

Our
sources.

Decisio.be makes nothing up. Every figure, rate, condition or procedure presented on the site comes from official sources: federal administrations, regions, public bodies, regulated professions. Here is the complete list, classified by level and topic.

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Primary sources first

For every topic, we first consult the official source (FPS, region, public body). Media and secondary sources are only used to complement or clarify.

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Monthly verification

All pages display a last verification date. Tax topics and grants are reviewed monthly to track changes.

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Not legal advice

Decisio provides general information. For your specific situation, we systematically refer you to a professional: notary, accountant, legal advisor.

🇧🇪 Federal level

Belgian federal administrations

Sources used for everything that depends on the federal state: personal income tax, social security, self-employed status, healthcare.

FPS Finance
Personal income tax, registration duties, energy savings and tax deductions.
finances.belgium.be
NIHDI / INAMI
National Institute for Health and Disability Insurance — care reimbursements, BIM/VIPO status, MAB ceiling, income limits.
inami.fgov.be
CAAMI / HZIV
Auxiliary Health Insurance Fund — public alternative to private health insurance funds.
caami-hziv.fgov.be
FPS Economy
Energy markets, social tariff, consumer protection.
economie.fgov.be
Belgium.be
Official portal of Belgian authorities — entry point to all administrations.
belgium.be
🏛️ Brussels-Capital Region

Brussels sources

Administrations, agencies and bodies specific to the Brussels-Capital Region.

be.brussels
Official portal of the Region — all regional powers centralized.
be.brussels
Bruxelles Fiscalité
Regional tax administration — registration duties, property tax (precompte immobilier), regional taxes.
fiscalite.brussels
Actiris
Regional public employment service — job offers, training, hiring grants, Tremplin Indépendants.
actiris.brussels
hub.brussels
Regional business support agency — financing, advice, international expansion.
hub.brussels
1819.brussels
Entrepreneur info line and platform — first reflex for any business question in Brussels.
1819.brussels
Renolution
Energy renovation portal of the Brussels Region (program suspended in 2026).
renolution.brussels
Bruxelles Environnement
Environmental grants, soil certificate, energy, mobility — Leefmilieu Brussel in NL.
environnement.brussels
Housing Fund
ECORENO credit, social mortgage loans, Brussels housing aid.
fonds.brussels
Homegrade
Free advice and support for Brussels residents on renovation and energy efficiency.
homegrade.brussels
Famiris
Brussels public family allowance fund (formerly Iriscare).
famiris.brussels
🌻 Walloon Region

Wallonia sources

Administrations, agencies and bodies specific to the Walloon Region.

wallonie.be
Official regional portal — news, procedures, regional powers.
wallonie.be
SPW Fiscalité
Service public de Wallonie — regional taxation, registration duties (3% since 2026), property tax.
finances.wallonie.be
Le Forem
Regional public employment service — job offers, qualifying training, support.
leforem.be
1890.be
Walloon entrepreneur one-stop shop — info on grants, support, free 1890 line.
1890.be
SOWALFIN
Société Wallonne de Financement et de Garantie — microcredits, bank guarantees, subordinated loans.
sowalfin.be
Énergie Wallonie
Housing grants, home audit, Rénopack, energy transition timeline.
energie.wallonie.be
FAMIWAL
Walloon public family allowance fund.
famiwal.be
🌊 Flemish Region

Flanders sources

Administrations, agencies and bodies specific to the Flemish Region.

vlaanderen.be
Official portal of Flanders — partial EN version available.
vlaanderen.be
Vlabel
Flemish Tax Administration — registration duties 2%, property tax, donations, inheritance tax.
vlaanderen.be/vlaamse-belastingdienst
VDAB
Flemish public employment and training service.
vdab.be
VLAIO
Flemish Agency for Innovation & Entrepreneurship — KMO portfolio, subsidies, business support.
vlaio.be
Mijn VerbouwPremie
Official platform for Flemish renovation grants — reformed on 1 March 2026.
mijnverbouwpremie.be
Fluvius
Flemish grid operator — energy grants, connections, digital meters.
fluvius.be
Energiesparen
Flemish Region energy info — VEKA (Flemish Energy and Climate Agency).
energiesparen.be
OVAM
Public Flemish Waste Agency — soil certificate (bodemattest) before real estate transactions.
ovam.vlaanderen.be
Groeipakket
Integrated Flemish system of family allowances and school grants.
groeipakket.be
💊 Health & insurance funds

Health insurance funds and bodies

Sources used for articles on health, insurance funds, BIM status and the Maximum Bill (MAB).

Christian Mutuality (MC/CM)
One of the main Belgian health insurance funds — rates, services, supplementary coverage.
mc.be
Solidaris
Socialist health insurance fund — health coverage and related services.
solidaris.be
Partenamut
Free French-speaking health insurance fund — services and supplementary offerings.
partenamut.be
🏠 Real estate — regulated professions

Notariat and regulated professions

Sources from regulated professions (notaries) used for real estate articles, sale agreements and registration duties.

Notaire.be
Official site of the Belgian Federation of Notaries — registration duties, sale agreement, inheritance, donation.
notaire.be
⚡ Energy & renovation

Energy and renovation — cross-cutting

Specific pages used in energy articles, complementing the regional sources already listed above.

FPS Finance — energy savings
Page dedicated to tax deductions related to energy savings at federal level.
finances.belgium.be/.../energy-savings
FPS Economy — social tariff
Conditions and procedures for the social tariff for energy in Belgium.
economie.fgov.be/.../social-tariff
📰 Secondary & complementary

Secondary sources used

Specialized media and professional publications consulted occasionally to clarify or complement a primary source — never as a sole source.

Test-Achats
Belgian consumer association — comparative dossiers on taxation, real estate, energy, health.
test-achats.be
KBC Private Banking
Tax and wealth publications — used in particular for the conditions of the 2% rate in Flanders.
kbc.be
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Decisio.be does not replace professional advice

The information published on this site is general syntheses based on the sources above. It does not constitute legal, tax or personalized financial advice. For any important decision (real estate purchase, choice of status, wealth transmission, financial plan), consult a qualified professional: notary, accountant, lawyer, independent financial advisor.

An error, missing source or update to report? Contact us.