EUR 40,000 after tax in Belgium (2026)
Where the money goes at EUR 40,000
| Item | Per year | Per month |
|---|---|---|
| Gross salary | EUR 40,000 | EUR 3,333 |
| Income tax | EUR 6,178 | EUR 515 |
| Municipal surcharge | EUR 432 | EUR 36 |
| Social security (ONSS, 13.07%) | EUR 5,228 | EUR 436 |
| Total deductions | EUR 11,838 | EUR 987 |
| Take-home pay | EUR 28,162 | EUR 2,347 |
Effective rate 29.6% · Marginal rate 50.3%. Net taxable income after ONSS and professional expenses is EUR 28,702, and the exempt amount reduces the bill by EUR 2,795. See how the exempt amount works.
At this salary the werkbonus and the low income tax credit would both apply in reality. Neither is modelled here, so your actual take-home pay is higher than the figure above.
Other salaries in Belgium
Compare with other countries
The same salary under a different tax system, at five levels each:
Frequently asked questions
How much tax do I pay on EUR 40,000 in Belgium?
At EUR 40,000 a year you pay EUR 11,838 in total for income year 2026, including ONSS at 13.07%, an effective rate of 29.6%. That leaves EUR 28,162 net, or EUR 2,347 a month.
Is the exempt amount included?
Yes. The exempt amount of EUR 11,180 is applied as a tax reduction worth EUR 2,795, which is 25% of it, rather than as a deduction from income. That is how Belgian tax actually grants it.
What is not included?
The werkbonus and the tax credit for low activity income are not modelled, so lower salaries show more tax here than would actually be paid. The special social security contribution is also excluded, which runs the other way. Increases in the exempt amount for dependants are not applied.
Computed from the published brackets and exempt amount for income year 2026, with a 7% municipal surcharge. Change it in the Belgium salary calculator, or see the methodology page. Last updated 2026-11-05.