Municipal tax · Flemish Brabant
Municipal tax in Zemst in 2026: 7%
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.
In Zemst, the municipal tax is 7% of the tax you owe the State for tax year 2026 (2025 income). For a single white-collar worker on €3,500 gross a month, it comes to about €567 a year on your 2026 income, assuming the rate is unchanged in 2027, €45 less than the Belgian average (7.55%).
69th lowest rate of the 285 municipalities in Flanders, tied with 41 other municipalities. Among the neighbouring municipalities, Mechelen is the least taxed, at 6.5%: living there would mean paying €41 less a year on €3,500 gross.
How much does the municipal tax in Zemst cost you?
Zemst is a municipality in the district of Halle-Vilvoorde, in the province of Flemish Brabant. Its municipal council sets the municipal tax at 7%: for every €100.00 of tax you owe the State, you pay €7.00 to the municipality.
| Gross per month | Tax owed to the State | Tax in Zemst (7%) | Difference from the average |
|---|---|---|---|
| €2,000 | €2,424 | €170 | − €13 |
| €2,500 | €4,596 | €322 | − €25 |
| €3,500 | €8,101 | €567 | − €45 |
| €5,000 | €15,689 | €1,098 | − €86 |
The withholding tax (bedrijfsvoorheffing / précompte professionnel) deducted every month already counts 7% municipal tax: in Zemst, your final tax is not affected.
In the province of Flemish Brabant, Zemst ranks 17th out of 63, tied with 9 other municipalities.
Where does the rate for Zemst come from?
The rate has not changed from 2025: Zemst is not among the 24 increases and 21 decreases recorded in Flanders for 2026. (Source: Hilde Crevits, Flemish Minister for Home Affairs.) Source of the rate: Waarwonen.be (secondary source). Check it on your tax assessment notice.
In Flanders, the average rate is 7.22% in 2026 (7.17% in 2025): Zemst is 0.22 percentage points below. The rate for tax year 2027 (2026 income) has not yet been published by FPS Finance; several municipalities have already voted their rate up to 2031.
Zemst and its neighbouring municipalities
- from 6.1 to 6.9%
- from 7 to 7.4%
- from 7.5 to 7.9%
- Zemst
Municipal boundaries: Statbel.
| Municipality | Rate | Tax on €3,500 gross | Difference from Zemst |
|---|---|---|---|
| Mechelen | 6.5% | €527 | − €41 per year |
| Steenokkerzeel | 6.7% | €543 | − €24 per year |
| Kampenhout | 7% | €567 | ≈ €0 |
| Zemst | 7% | €567 | — |
| Boortmeerbeek | 7.2% | €583 | + €16 per year |
| Vilvoorde | 7.2% | €583 | + €16 per year |
| Grimbergen | 7.4% | €600 | + €32 per year |
| Kapelle-op-den-Bos | 7.8% | €632 | + €65 per year |
Among the neighbouring municipalities, Mechelen is the least taxed, at 6.5%: living there would mean paying €41 less a year on €3,500 gross. If you are moving, the What if I moved? simulator adds the family allowances and tax reductions of each Region.
Municipalities in the district of Halle-Vilvoorde
| Municipality | Rate | Tax on €3,500 gross | Difference from Zemst |
|---|---|---|---|
| Machelen | 5% | €405 | − €162 per year |
| Zaventem | 5% | €405 | − €162 per year |
| Sint-Genesius-Rode | 6% | €486 | − €81 per year |
| Wezembeek-Oppem | 6.5% | €527 | − €41 per year |
| Steenokkerzeel | 6.7% | €543 | − €24 per year |
| Hoeilaart | 6.8% | €551 | − €16 per year |
| Asse | 6.9% | €559 | − €8 per year |
| Beersel | 6.9% | €559 | − €8 per year |
| Dilbeek | 6.9% | €559 | − €8 per year |
| Ternat | 6.9% | €559 | − €8 per year |
| Affligem | 7% | €567 | ≈ €0 |
| Drogenbos | 7% | €567 | ≈ €0 |
| Kampenhout | 7% | €567 | ≈ €0 |
| Kraainem | 7% | €567 | ≈ €0 |
| Sint-Pieters-Leeuw | 7% | €567 | ≈ €0 |
| Wemmel | 7% | €567 | ≈ €0 |
| Zemst | 7% | €567 | — |
| Halle | 7.1% | €575 | + €8 per year |
| Merchtem | 7.1% | €575 | + €8 per year |
| Vilvoorde | 7.2% | €583 | + €16 per year |
| Overijse | 7.3% | €591 | + €24 per year |
| Pajottegem | 7.3% | €591 | + €24 per year |
| Grimbergen | 7.4% | €600 | + €32 per year |
| Pepingen | 7.5% | €608 | + €41 per year |
| Roosdaal | 7.5% | €608 | + €41 per year |
| Kapelle-op-den-Bos | 7.8% | €632 | + €65 per year |
| Liedekerke | 7.8% | €632 | + €65 per year |
| Linkebeek | 7.8% | €632 | + €65 per year |
| Opwijk | 7.8% | €632 | + €65 per year |
| Lennik | 7.9% | €640 | + €73 per year |
| Londerzeel | 7.9% | €640 | + €73 per year |
| Meise | 7.9% | €640 | + €73 per year |
| Bever | 8% | €648 | + €81 per year |
Calculate your municipal tax in Zemst
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Frequently asked questions
What is the municipal tax rate in Zemst in 2026?
7% of the tax you owe the State, for tax year 2026 (2025 income). The rate has not changed from 2025: Zemst is not among the 24 increases and 21 decreases recorded in Flanders for 2026.
How much is the municipal tax in Zemst on a salary of €3,500 gross?
About €567 a year for a single white-collar worker, €45 less than the Belgian average (7.55%). On €2,500 gross, about €322 a year. Calculated on your 2026 income, assuming the rate is unchanged in 2027.
Which neighbouring municipality of Zemst is the least taxed?
Mechelen, at 6.5%. For a single white-collar worker on €3,500 gross, the difference is about €41 a year. If you are moving, also take into account the other local taxes and, if you change Region, family allowances.
What next?
- All municipal taxesThe map and the rates of the 565 municipalities.
- What if I moved?Municipal tax, family allowances and tax reductions.
- Household tax simulatorYour full tax, including municipal tax.
- Tax refund or tax to pay?What your tax assessment notice will say.
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.
- Alle gemeenten in Vlaams-Brabant: municipal tax by municipality, tax year 2026 (‘Bronnen: Gemeente-Stadsmonitor Vlaanderen (aanslagjaar 2026)’), accessed on 8 October 2026, Waarwonen.be (secondary source).
- Belastingtarieven in gemeenten stabiel voor 2026 (5 February 2026): average rate of 7.22% in 2026 (7.17% in 2025), 24 increases, 21 decreases, Knokke-Heist the only municipality at 0%, De Panne and Koksijde go from 0 to 5%, Hilde Crevits, Flemish Minister for Home Affairs.
- Gemeentebelasting in België: hoe werkt het? Average rate of 7.55% across the 565 municipalities for tax year 2026, most common rate 8% (126 municipalities), Astro Tax (secondary source).
- Taux d’imposition, revenus 2025 et 2026, FPS Finance.