Belgium Income Tax Calculator 2026
Calculate your exact net salary in Belgium after Impôt des personnes physiques (IPP) / Personenbelasting and social security. All 4 tax brackets. Updated Q1 2026.
Your employer pays an additional €12,500 (25.0% of gross). Total employment cost = €62,500.
How income tax works in Belgium
Income tax in Belgium is administered by the Service Public Fédéral Finances (SPF Finances) under Impôt des personnes physiques (IPP) / Personenbelasting. Communal additional tax 0–9% on top of federal IPP (avg ~7%). Brackets shown are federal only.
Belgium uses a progressive schedule of 4 brackets: each slice of income is taxed at the rate of the band it falls in — not your highest rate applied to the whole salary. Social security (13.1% of gross) is deducted first; income tax is then applied to the remainder band-by-band.
Belgium pays salaries across 12 monthly instalments.
Key tax dates in Belgium
| Event | Date / Note |
|---|---|
| Tax year start | 1 January |
| Tax year end | 31 December |
| Filing deadline | 30 June (paper) / mid-July (Tax-on-web) |
| Withholding regime | Impôt des personnes physiques (IPP) / Personenbelasting |
Deductions and allowances
- ·Tax-free allowance EUR 10,570
- ·Professional expenses (flat 30%, capped)
- ·Pension savings (EUR 1,050)
- ·Childcare (45% credit)
Communal additional tax 0–9% on top of federal IPP (avg ~7%). Brackets shown are federal only.
Special tax regimes
Expat regime (BBIB): 30% of gross salary tax-free for qualifying inbound taxpayers, capped at EUR 90,000/year, for 5+3 years.
Read full guide →All 4 brackets for 2026
| # | Income Range (€) | Marginal | Effective at Top |
|---|---|---|---|
| 01 | €0 — €13,870 | 25% | 34.8% |
| 02 | €13,870 — €24,480 | 40% | 39.3% |
| 03 | €24,480 — €42,370 | 45% | 44.4% |
| 04 | €42,370 — ∞ | 50% | — |
Source · Service Public Fédéral Finances (SPF Finances) · Data updated Q1 2026
Frequently asked
What is the income tax rate in Belgium?+
Belgium applies progressive Impôt des personnes physiques (IPP) / Personenbelasting rates from 25.0% on the lowest band up to 50.0% on the highest, across 4 brackets in 2026.
How much social security do you pay in Belgium?+
Employees pay 13.1% of gross salary as social security. Communal additional tax 0–9% on top of federal IPP (avg ~7%). Brackets shown are federal only.
What is the Impôt des personnes physiques (IPP) / Personenbelasting personal allowance in Belgium?+
The main allowances are: Tax-free allowance EUR 10,570; Professional expenses (flat 30%, capped). See §03 for the full list.
When do you file taxes in Belgium?+
The filing deadline in Belgium is 30 June (paper) / mid-July (Tax-on-web). Tax year runs 1 January to 31 December.
How much take-home pay on €48,000 gross in Belgium?+
On a €48,000 gross salary the effective rate is 45.3%, leaving approximately €26,254 net per year — about €2,188 per month across 12 payments. (For reference: €50,000 gross nets €27,156.)
Does Belgium have any special tax regimes for expats?+
Expat regime (BBIB): 30% of gross salary tax-free for qualifying inbound taxpayers, capped at EUR 90,000/year, for 5+3 years.
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