Is cannabis legal in Belgium?

Brussels, Liège, Antwerp: just across the border, Belgium has a reputation for being cooler than France when it comes to weed. The honest answer: no, there is no legal cannabis in Belgium. Cannabis in Belgium remains prohibited by a century-old law, and what is known as the "3-gram tolerance" is merely an instruction given to public prosecutors. At Tealer420, we have analyzed this de facto tolerance system, as it is often misunderstood by those crossing the border. Here is how it actually works.

Cannabis in Belgium: Where the 3-gram rule comes from

No law mentions 3 grams. Cannabis is prohibited by the law of February 24, 1921, and that has never changed. The tolerance stems from a directive from the Prosecutors General dating from 2005, revised on December 21, 2015.

This directive instructs prosecutors to consider the possession by an adult, without aggravating circumstances, of no more than 3 grams of dried cannabis or a single female plant as the lowest priority. This is therefore a de facto decriminalization, not a legal right. A directive can be tightened overnight, which is exactly what happened in 2015.

What voids the tolerance

The 2015 revision tightened the rules. First, cannabis is now systematically seized, even under 3 grams. Furthermore, the tolerance disappears as soon as there is:

• a public nuisance or ostentatious possession;
• possession near a school or a place frequented by minors;
• possession in prison;
• more than 3 grams on one's person.

In these cases, a standard report is filed and sent to the public prosecutor. And consumption in public spaces is automatically excluded. The De Wever government, known as "Arizona," in power since February 2025, has insisted on this point: zero tolerance for smoking in the street or in a park.

The single plant and the end of clubs

An adult can therefore hope not to be prosecuted for a single female plant. But trying to pool cultivation means crossing the line. Associations like Trekt Uw Plant in Antwerp have attempted to grow collectively for their members: the Federal Agency for Medicines and Health Products (FAMHP) and the justice system deemed them illegal.

No clubs, no coffeeshops, no boutiques: in Belgium, there are no legal points of sale. Any sale constitutes trafficking, with heavy prison sentences provided for by the 1921 law, which are aggravated in cases of association or sales to minors.

Fines and penalties for use

If the public prosecutor decides to charge an adult for personal use, the scale is progressive:

• 1st time: fine of €15 to €25 plus surcharges, totaling about €120 to €200.
• Repeat offense within the year: about €208 to €400.
• Further repeat offenses: 8 days to 1 month in prison and/or about €400 to €800.

In practice, dismissals and mediations are frequent. Note: the new Belgian Penal Code, announced for 2026, could change these amounts, though we have not been able to verify how. On the French side, the logic is different; we detailed it in our article on the fixed penalty fine for weed.

On Belgian roads

Here, there is no gray area. Saliva tests are frequent and the rule is zero tolerance: a positive THC test leads to the immediate suspension of the license, for at least 12 hours, followed by prosecution with a fine and potential loss of the right to drive.

French tourists in Belgium

The directive does not set any residency requirements: in theory, the 3-gram tolerance also applies to an adult visitor. In practice, it does not protect against being ticketed, especially in public. And above all, bringing even the smallest amount back to France constitutes drug importation under French law, which we summarize on our cannabis and the law in France page. The only thing that can be legally purchased on site: CBD flowers with less than 0.2% THC, sold under tobacco regulations with a tax stamp.

Key Takeaways

Belgium has never legalized or decriminalized cannabis in its law. It has opted for a narrow penal tolerance, managed by prosecutors, which primarily protects adults acting discreetly at home. And the wind is not shifting: the 2026-2029 inter-federal drug strategy, approved in March 2026, does not contain any openings regarding cannabis. We are far from the nearby Dutch model, as shown in our European overview.

Informative article, updated September 24, 2026. Sources: law of February 24, 1921 on narcotics, directive from the Prosecutors General of 2005 revised on December 21, 2015, FAMHP, 2026-2029 inter-federal drug strategy, opinion from the FPS Finance of April 2019. It does not constitute legal advice and legislation is subject to change. Reserved for 18+. Compliant with current European legislation (< 0.3% THC). Consumption of illicit cannabis remains prohibited in France.