Belgium Corporate Tax Calculator 2026 — Vennootschapsbelasting
Calculate Belgian corporate tax (vennootschapsbelasting / impôt des sociétés) at 25% with municipal surcharge (opdeciemen / centimes additionnels), thin capitalisation rules (30% EBITDA), and loss carryforward provisions.
How Belgian corporate taxation works in 2026
Belgian companies (NV/SA, BV/SRL, Comm.V, SC, CV) pay vennootschapsbelasting (corporate tax) at a flat 25% rate on taxable profit. From 2024 onward, the reduced SME rate (20% on the first €100,000) has been phased out due to EU minimum tax rules (Pillar Two), so virtually all companies now pay the standard 25% rate. In addition, a municipal surcharge (opdeciemen / centimes additionnels) of typically 7–10% of the corporate tax amount is levied, bringing the effective rate to approximately 26.75%–27.5%.
Belgium Corporate Tax Calculator 2026 — Vennootschapsbelasting
Free Belgian corporate tax calculator. Calculate vennootschapsbelasting (25%) with municipal surcharge, thin cap rules, and loss carryforward.
Calculation Breakdown
Tax Breakdown
Effective Tax Rate at Different Profit Levels
Understanding your results
Corporate tax (vennootschapsbelasting) is a flat 25% on the taxable base after deductions. The thin capitalisation rule limits interest deductibility to 30% of tax-adjusted EBITDA (earnings before interest, tax, depreciation, and amortisation). Interest exceeding this cap is carried forward indefinitely. Loss carryforwards are available indefinitely but capped: the first €1 million of profit can be fully offset by carried-forward losses, while only 70% of the excess profit (above €1M) can be offset in any given year.
Corporate tax components
Standard rate (25%): Applied to the taxable base after all deductions. The reduced rate for SMEs was repealed from tax year 2024 (assessment year 2025). Municipal surcharge (opdeciemen/centimes additionnels): A provincial/municipal tax calculated as a percentage of the corporate tax due. Rates vary by municipality, typically between 7% and 10%. For example, a company in Brussels pays approximately 7%, while some Flemish municipalities may charge up to 10%. Crisis surcharge (aanvullende crisisbijdrage): Set to 0% from 2024 onward.
Thin capitalisation and interest limitation
Under the EU Anti-Tax Avoidance Directive (ATAD), Belgium applies an earnings stripping rule: net interest expenses exceeding 30% of tax-adjusted EBITDA are non-deductible in the current year. Excess interest can be carried forward indefinitely. There is a de minimis threshold of €3 million (or €1 million for groups) below which the rule does not apply. The rule applies to all companies, not just those in a group.
Loss carryforward rules
Belgium has no time limit on loss carryforwards — losses can be carried forward indefinitely. However, the annual deduction is limited to €1 million plus 70% of the taxable profit exceeding €1 million. This means that in any given year, at least 30% of the profit above €1 million is always taxed. This rule was introduced to comply with EU ATAD requirements.
Fairness tax and other considerations
The fairness tax is an additional levy of 5% on excessive dividend distributions (calculated on the difference between distributed dividends and the taxable base after certain adjustments). It applies to companies that distribute dividends but pay little or no corporate tax. Our calculator does not yet include this tax — contact a Belgian tax advisor for a comprehensive assessment including fairness tax, VAT compliance obligations, and RSZ (social security) requirements for management.