Belgium Salary CalculatorHow this salary calculator works
Enter your pay, choose the period and review your tax profile. The result estimates annual deductions first, then divides net pay into equivalent pay periods. It is not a payslip or a tax return.
Tax year and assumptions
2026 income · assessment 2027
- Full-year Belgian resident, single, no dependants, private-sector non-manual employee. Gross is annual ordinary cash pay, assumed spread evenly over 12 months.
- Uses 2026 progressive income-tax rates, EUR 11,550 personal allowance and standard employee professional-expense deduction. Municipal 7% is an editable example, not your actual municipality rate.
- The standard employee social contribution is 13.07%. Low-pay work bonuses are NOT inferred from annual salary: enter verified annual social and fiscal work-bonus totals from payroll. Zero defaults can overstate deductions for low-paid employees.
- Special social-security amount is an annualized payroll provision using the individual-taxation bands, not the final household assessment. Variable bonuses, holiday-pay rules, manual workers, married taxation, dependants and other credits are not modelled.
Sources and rule dates
- FPS Finance: current 2026 rates and EUR 11,550 personal allowance
- FPS Finance: 30% employment expenses, 2026 EUR 6,070 cap
- ONSS: employee social contribution and work bonus
- ONSS: special social-security withholding for individual taxation
Why can payroll differ?
Tax codes, family circumstances, credits, other income, employer benefits, contribution limits and rounding can change actual pay. Check the stated profile and official sources before using the estimate.
Your data stays with you
Calculations run on your device. Comparison entries exist only in this tab and disappear when you reload. No salary is sent to a tax API.