Cannabis, often known as marijuana or weed, has been subject to significant changes in legislation across Europe. However, despite reforms in neighbouring countries, recreational cannabis is still not legal in Belgium.
Belgium does operate a policy of lower prosecution priority for limited personal possession by adults. In certain circumstances, possession of no more than 3 grams of cannabis or one cultivated cannabis plant is treated as the lowest priority for prosecution. Importantly, this does not mean that cannabis has been legalised.
In this article, we look at the current legal status of cannabis in Belgium, including possession, cultivation, medicinal cannabis and the rules that apply to personal use.
A Look Back in Time
Like many European countries, Belgium has a long history of cannabis and hemp use. Historically, the cannabis plant was used for purposes including fibre and textiles before increasingly strict international and domestic drug controls were introduced during the 20th century.
A significant change to Belgium’s modern cannabis policy came in 2003, when the country introduced a distinction between cannabis and other controlled drugs for enforcement purposes. This did not legalise cannabis, but it established a lower prosecution priority for limited possession intended for personal use by adults.
The Legal Framework
Recreational cannabis remains illegal in Belgium. The possession, cultivation, import, production and sale of cannabis can all result in legal consequences.
However, Belgian authorities apply the lowest prosecution priority when an adult aged 18 or over possesses cannabis for personal use and all of the following conditions apply:
- The person is aged 18 or over.
- The amount is no more than 3 grams of cannabis or one cultivated cannabis plant.
- There are no aggravating circumstances.
- The possession does not cause a disturbance to public order.
This is sometimes described as cannabis being “decriminalised” in Belgium, but that description can be misleading. Possession within these limits remains an offence rather than becoming legally permitted.
Police can draw up a simplified official report and the cannabis can be confiscated. The report is then passed to the public prosecutor, who retains the power to pursue the case.
Public-order circumstances can also change how an offence is treated. These include possession in or around schools, prisons or youth institutions, as well as conspicuous possession in public or publicly accessible places.
Belgian Federal Justice currently lists penalties beginning with a statutory fine of €15 to €25 for a first offence. Belgian criminal fines are subject to an additional multiplier of eight, making the effective amount €120 to €200. Repeat offences can result in higher fines and, for further repeat offences within the specified period, imprisonment.
Selling, supplying or trafficking cannabis is treated considerably more seriously and does not benefit from the lower-priority approach applied to limited personal possession.
Can You Grow Cannabis in Belgium?
Cannabis cultivation is not technically legal in Belgium.
However, the same lower prosecution priority applied to small quantities of cannabis can extend to an adult cultivating a single cannabis plant for personal use, provided there are no aggravating circumstances or disturbance to public order.
This means the frequently repeated claim that Belgium allows everyone to “legally grow one cannabis plant” is not strictly correct. Cultivation remains an offence; one plant simply falls within the quantity regarded as personal use for the purposes of prosecution policy.
Cultivating multiple plants, operating a larger growing operation or producing cannabis for sale or distribution falls outside this policy and can lead to more serious prosecution.
Medicinal Use of Cannabis in Belgium
Belgium permits medicinal cannabis in very limited and closely regulated circumstances.
Sativex is currently the only licensed medicinal cannabis speciality available on the Belgian market. It contains both THC and CBD and is used for the treatment of muscle spasticity in people with multiple sclerosis when other medicines have not provided sufficient relief.
Sativex is subject to restricted medical prescription requirements. Under specific circumstances it can also be reimbursed when prescribed for multiple sclerosis and supplied through a hospital pharmacy.
Belgian pharmacists can also prepare pharmaceutical compounds containing CBD when prescribed by an appropriately experienced doctor. Since May 2025, certain CBD pharmaceutical preparations can qualify for reimbursement for specific forms of epilepsy, including Dravet syndrome and Lennox-Gastaut syndrome, when the relevant conditions are met.
This does not amount to a broad medical cannabis programme of the type available in some other European countries. Belgian pharmacies are not permitted to dispense cannabis flower or other unapproved forms of THC-containing cannabis simply because a patient has a medical condition.
Can You Smoke Cannabis in Public in Belgium?
The lower prosecution priority given to limited personal possession should not be interpreted as permission to openly consume cannabis in public.
Public-order considerations can lead to more serious enforcement, particularly around schools, public spaces and other locations where cannabis use or possession may cause a nuisance.
Some Belgian cities, municipalities and festivals can also apply local enforcement measures or immediate settlements even when the quantity involved would otherwise fall within the personal-use threshold.
Driving and Cannabis in Belgium
Belgium operates a zero-tolerance approach to driving under the influence of drugs.
The limited tolerance applied to personal possession does not provide any exemption for driving. Police use roadside testing procedures, including saliva tests, to detect cannabis and other drugs.
Anyone driving in Belgium should therefore treat the rules concerning cannabis and road traffic separately from the country’s policy towards small quantities of cannabis for personal possession.
Challenges and Controversies
Belgium’s cannabis laws can be confusing because there is an important distinction between something being legal and authorities choosing to give an offence a low prosecution priority.
The 3-gram and one-plant thresholds have consequently led to the widespread misconception that possessing small quantities or growing one cannabis plant is legal. In reality, cannabis remains prohibited and can still be confiscated, recorded by police and, depending on the circumstances, prosecuted.
Belgium’s approach to medicinal cannabis is also considerably more restrictive than that of some neighbouring European countries. Although authorised cannabis-based medicines and prescribed CBD preparations are available in specific circumstances, there is currently no broad system through which patients can routinely obtain medicinal cannabis flower.
Looking Ahead
Cannabis policy continues to change across Europe, but Belgium has not introduced a legal recreational cannabis market.
As of August 2026, recreational possession, cultivation, sale and supply remain prohibited. Belgium instead continues to operate its established lower-prosecution-priority policy for limited personal possession by adults.
Future governments could reconsider this approach as cannabis laws continue to develop elsewhere in Europe, but any future reform should be distinguished from the law that is currently in force.
So, Is Cannabis Illegal In Belgium?
Yes. Recreational cannabis remains illegal in Belgium.
The important qualification is that adults aged 18 or over found with no more than 3 grams of cannabis or one cultivated plant for personal use receive the lowest prosecution priority when there are no aggravating circumstances or problems involving public order.
That does not make possession or cultivation legal. Cannabis may still be confiscated, police can record the offence and prosecution remains possible.
Medicinal cannabis is legal only within Belgium’s tightly controlled medicines framework. Sativex is currently the country’s only marketed cannabis-based medicinal speciality, while certain prescribed pharmaceutical preparations containing CBD are also permitted.
Belgium should therefore be described as having a limited tolerance or decriminalisation policy for small-scale adult personal possession rather than having legalised recreational cannabis.
Cannabis laws and enforcement policies can change. This article reflects the Belgian legal position as of August 2026 and should not be regarded as legal advice.
