Calculate your estimated net salary
Enter your gross salary and apply the special rules available for this country.
Belgium net salary calculator
Estimate net salary in Belgium with ONSS, marital status, dependent children, and municipal tax.
Estimated results
Complete the form to see the estimated annual and monthly net salary.
- Estimated net monthly salary
- €0
- Net extra salary payment
- €0
- Estimated net annual salary
- €0
- Estimated annual deductions
- €0
- Estimated effective tax rate
- 0%
Breakdown
- Base annual gross
- €0
- Country-specific gross adjustment
- €0
- Taxable annual income
- €0
- Annual social security
- €0
- Annual income tax
- €0
- €0
- €0
- Calculation note
- -
Assumptions
- Belgium uses a simplified annual employee payroll model in this dataset rather than the full official withholding engine.
- ONSS / RSZ is modeled at 13.07% on gross salary with no ceiling in this MVP.
- Federal income tax is estimated with annual progressive brackets of 25%, 40%, 45%, and 50% after a tax-free allowance.
- The base tax-free allowance is modeled at EUR 10,500, with an additional EUR 3,500 if the spouse has no income.
- Dependent children reduce the final federal tax bill through flat annual tax reductions of EUR 500, EUR 1,300, EUR 3,100, and EUR 6,500 for four or more children.
- Municipal tax is modeled as a user-selected percentage between 0% and 9% applied on top of the post-reduction federal income tax.
- The special social-security contribution is approximated with a simple monthly bracket scale between EUR 0 and EUR 60.
How this calculator works
This is a net salary calculator based on gross salary for Belgium. It uses a simplified model and transparently shows the main tax brackets and variables included in the estimate.
Tax brackets considered
- Up to EUR 15,820 at 25%
- Up to EUR 22,500 at 40%
- Up to EUR 48,320 at 45%
- Above EUR 48,320 at 50%
Variables considered
- Gross salary input
- Monthly or annual salary period
- Marital status
- Dependent children
- Municipal tax (%)