How much speed-camera margin do I get in Belgium?
None — an 'allowed margin' doesn't exist; what exists is a technical measurement correction. Every clocked speed first gets a correction for measurement uncertainty: 6 km/h at speeds up to 100 km/h and 6 percent above. Clocked at 120 where 100 applies, the file says 112.8 — and the fine is computed on that. It is not a right to drive 6 too fast: the limit stays the limit, and the old extra 'tolerance margins' (quotas and thresholds that varied by prosecutor's office) are being phased out — cameras increasingly ticket from the first corrected km/h. Since 1 July 2026 a minor speeding offence in built-up areas costs €74 (previously €68), climbing per extra km/h. More than 20 km/h over in town or 30 elsewhere: prosecutor and possibly police court, with a driving ban on the table.
📋 The rules
- Technical correction: 6 km/h (≤100 km/h) or 6 % (>100 km/h) — not a licence to speed
- Fine computed on the corrected speed
- Minor urban offence: €74 (since 1/7/2026), + per extra km/h
- Extra prosecutor tolerance margins: being scrapped
- >20 km/h over (urban/zone 30) or >30 elsewhere: prosecutor/summons
🔓 Exceptions
- Average-speed checks: same correction on the averaged speed, no extra margin
- GAS administrative fines for limited speeding on 30/50 roads in Flemish municipalities: separate track
- Above 100 km/h the correction is not 6 km/h but 6 percent — on the motorway the deduction is therefore larger in absolute terms
⚠️ Penalties & fines
A minor speeding offence in a built-up area costs €74 since 1 July 2026 (previously €68), and that climbs with every extra km/h. The real tipping point sits higher: more than 20 km/h over in a built-up area or a zone 30, or more than 30 km/h over elsewhere, and the immediate fine disappears — instead a summons to the police court, with fines in the thousands and a driving ban on the table. And the defence many count on does not exist: the 6 km/h is deducted before the fine is calculated.
📎 Official sources
- Intolaw · Correction margins are disappearing (NL) →
- Evocaat · The speed-measurement correction (NL) →
- Ghent Local Police · Fine amounts from 1/7/2026 (NL) →
❓ Frequently asked
So I can drive 6 km/h over?
No. That 6 km/h (or 6 % above 100 km/h) corrects the device's measurement uncertainty; it is not a permitted margin. Bet on it and you will be flashed sooner or later — the limit stays the limit.
Clocked at 121 on the motorway — fined?
A measured 121 is corrected to roughly 113.7, which stays under the 120 limit, so nothing punishable remains. Measured at 128 (corrected to 120.3), on the other hand, you are caught.
What does 10 km/h over cost in town?
The first bracket costs €74 since 1 July 2026, up from €68. Every additional km/h beyond that bracket pushes the amount higher, and past 20 km/h over in town you leave the fine system altogether.
Do prosecutor quotas or tolerance thresholds still exist?
They historically varied from zone to zone, but are being systematically scrapped. Counting on local leniency is outdated: cameras increasingly ticket from the first corrected kilometre.
Does the correction apply to average-speed checks too?
Yes. An average-speed check measures your mean speed over a stretch, and the same correction is applied to that average. There is no extra margin just because it is a section check.
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