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About Belgium tax

Belgium uses a progressive income tax with rates of 25%, 40%, 45%, and 50%, plus mandatory social security contributions of 13.07% of gross salary. The top marginal rate kicks in above roughly €46,000/year, making Belgium one of the highest-tax environments in the OECD for middle-income earners. A flat-rate professional expenses deduction (currently up to €5,040/year) partially offsets this burden.

Municipal surcharges — which vary by commune — typically add 6–9% on top of federal tax, so where you live in Belgium genuinely affects your take-home. Brussels communes average around 7.5%.

Use the Belgium salary calculator →