Net salary by job · 2026
Side activity: what net salary in 2026?
Updated on
Since 1 November 2026, withholding tax on pay has been calculated differently (Royal Decree of 27 September 2026). The calculations on this page still follow the previous rules: for pay received from 1 November, withholding tax and net pay may differ. Update in progress.
Alongside a salaried job
Employee with a self-employed side activity. A salaried job of at least half-time and a self-employed activity on the side. With a salary of €3,000 gross a month and €10,000 of profit a year from the side activity, the total net is about €2,633.10 a month.
Useful links
- NISSE (INASTI/RSVZ)Contributions and social protection for the self-employed
- hub.brusselsSupport for business founders in Brussels
- 1890Wallonie Entreprendre’s entry point for starting a business
- VLAIOFlanders Innovation & Entrepreneurship
Calculate your net pay: side activity
A few questions, one at a time: your status, your gross pay or the net you are aiming for, your working time and your family situation. The result is broken down line by line, with the source of each amount.
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Gross-to-net salary 2026 in Belgium: what you really keep
Salary, civil service pay, student job, flexi-job, business and employment cooperative or self-employed work: a few questions, one at a time. Start from your gross pay or the net you are aiming for. You can skip questions; the result will say clearly what we assumed.
- 1Your job or your status
- 2A few questions, one at a time
- 3Your net pay, line by line and sourced
Belgian parameters in force on . Each line of the result links to its source. No data is stored or sent: everything is calculated in your browser.
Which status pays you the most?
Changing jobs, thinking of joining Smart, starting out on your own, or torn between two offers? Compare the net pay of each option over the year, including what does not show on the payslip: unemployment, holiday pay, deductible expenses.
What next?
- Content creator: net salaryemployee with a self-employed side activity, self-employed as a main occupation, Smart member or self-employed student
- Paid mandate in a non-profit: net salaryemployee with a self-employed side activity or self-employed as a main occupation
- All jobs96 jobs and situations, by status.
Sources
Parameters in force on 1 October 2026. Each parameter links to its source, the official one where it exists; a secondary source is flagged as such.
- Cotisations sociales des indépendants 2026, FPS Social Security.
- Taux d’imposition, revenus 2025 et 2026, FPS Finance.