Belgium Sources and Verification
Source-backed employee estimate for 2026-01-01 to 2026-12-31.
Professional verification
The Belgium calculator has not yet been reviewed by an independent tax professional. Until it is, results rely on the official sources, worked examples and automated checks below. How our verification works.
Worked examples, recalculated live
Each example was worked by hand from the official rules before publication. The live calculator must reproduce it exactly, to the cent, or the rule set cannot be published.
| Example | Expected take-home | Live result | Status |
|---|---|---|---|
| EUR 65,000 a yearHousehold and municipality profile: Single, no dependants, City of Brussels; Annual employee social contributions: 8495.5; Annual net taxable professional income: 50000 | EUR 42,075.02 | EUR 42,075.02 | Matches |
Official sources and monitoring
3 official sources. 2 were checked automatically in the last three weeks, most recently on 2026-10-23. A content change opens a review before any rule is updated.
| Source | Researched | Automated check |
|---|---|---|
| Professional withholding calculation rules and simulator for 2026Belgian Federal Public Service Finance | 2026-10-18 | Checked automaticallyLast checked 2026-10-23 |
| Ordinary private-sector employee social contribution of 13.07%Belgian Social Security | 2026-10-18 | Checked automaticallyLast checked 2026-10-18 |
| Additional municipal tax ratesBelgian Federal Public Service Finance | 2026-10-18 | Site blocks automated checks; reviewed manually |
No detected source change is waiting for review.
Rule version
Version BE-2026-v1, approved on 2026-10-18, last validated on 2026-10-18. Rules are effective from 2026-01-01 to 2026-12-31. Published rule versions cannot be edited; corrections are released as a new version.
Calculation assumptions
- Single Belgian resident in the City of Brussels, with no dependants and one private-sector employer.
- Gross annual pay is at least EUR 60,000, where the low-wage social work bonus does not apply.
- The user enters annual employee social contributions and annual net taxable professional income from the payroll estimate.
Coverage & limitations
Rule version BE-2026-v1 · Tax year 2026. See sources, monitoring and verification status.
- This is a final annual-tax estimate for a single City of Brussels resident, not an exact monthly payroll-withholding table.
- The work bonus, special social-security contribution, regional reductions and tax credits are not included.
- Independent professional verification pending.