Free tool
Belgium tax calculator
Estimate income tax, social contributions and net income as a self-employed person in Belgium. An indication, not tax advice.
Understand every figure
The complete guide to self-employed taxes in Belgium.
Frequently asked questions
How accurate is this calculator?
The calculator provides an indicative estimate based on Belgian tax brackets for 2026. For an exact calculation, consult an accountant.
What is the tax-free allowance?
It is the part of your income you pay no tax on. For 2026 income it is €11,550, applied as a tax reduction of €2,887.50 (€11,550 × 25%).
Do I also have to pay municipal taxes?
Yes, in Belgium there are also municipal taxes (5-9% of tax), but this calculator does not include them for simplicity.
What is the difference between main and secondary self-employed?
The main self-employed has independent activity as the primary source of income, while the secondary self-employed also works as an employee.
Explore the next steps
Start with the overview
Guides and articles
- How Much Do You Actually Keep from Your Income in Belgium (2026): Taxes for Self-Employed + Real Examples
- The 2026 Belgian Dividend Tax Hike: How to Protect Your Business Profits
- Belgium Self-Employed Taxes 2026 – How Much You Pay and How to Calculate
- Self-employed in Belgium: how social contributions and income tax work (2026)