Question 1

How much tax do I pay on my salary in Belgium?

Accepted Answer

Income tax in Belgium is progressive, rising to a top marginal rate of 50% in 2025. On top of income tax, employees pay 13.1% in social security contributions. Your effective rate depends on where your income falls across the brackets — the calculator above shows the exact breakdown.

Question 2

What is the tax-free allowance in Belgium?

Accepted Answer

In 2025, the first €10,910 of annual income is tax-free in Belgium. Income tax only applies to earnings above this basic allowance.

Question 3

How do I convert gross to net salary in Belgium?

Accepted Answer

Start from your gross salary, subtract employee social security contributions (13.1%), then apply Belgium's progressive income tax brackets to the taxable amount. The calculator on this page does all of this automatically with 2025 rates.

Taxable income (EUR)	Marginal rate
€0 – €15,820	25%
€15,820 – €27,920	40%
€27,920 – €48,320	45%
€48,320 – and above	50%

Belgium Salary Calculator 2025

Belgium income tax brackets (2025)

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