CBD and Marijuana in the United Kingdom: Current Regulations (FAQ)

The United Kingdom has no quantitative threshold, and this is not a loophole in the legislation but a construction of the law. Even a trace amount falls within the definitions, as the regulation does not refer to weight at all.

There are several provisions here that do not exist anywhere else in this comparison: a special defense for the person transferring the drug, cultivation punished more severely than trafficking, and a provision aimed directly at travelers.

Legal status checked in September 2026 in the texts of both acts and regulations. This is a description of the regulations, not legal advice.

Is possession of marijuana in the United Kingdom punishable?

It is prohibited in any amount and without any threshold. The law states briefly: possession of a controlled substance is illegal, subject to regulations issued under a separate provision, and violation of this prohibition is a crime. The ban therefore covers every form of material, without exception for trace amounts.

Cannabis and cannabis resin are classified as Class B, along with amphetamines, codeine, and ketamine. This classification determines the severity of penalties, as British law ties them to the class of the substance, not its amount.

The law does not recognize the concept of quantity for personal use and does not specify a number below which possession ceases to be a crime. Everything circulating about warnings for cannabis comes from police practice, not from the text of the regulation.

However, there is a special defense mentioned rarely. A person does not commit a crime if they took the drug to prevent another person’s crime or to transfer it to an authorized person, and immediately did everything within their power to destroy it or hand it over.

A threshold-less construction is rare in this comparison. How it stands against countries operating with numbers is shown by our map of marijuana legality.

How much marijuana is allowed in the United Kingdom?

There is no threshold, and this is not a loophole in the legislation but a construction of the law. The British act does not contain a quantitative threshold for possession, so there is no value below which the act ceases to fulfill the elements of a crime. The regulation also does not refer to any executive act with a table of values.

However, quantity matters in two other places. It affects the severity of the penalty and whether the prosecutor will charge possession or possession with intent to supply to another person.

This distinction is practically more important than the weight itself. The charge determines which of the two very distant penalty ranges the case will fall into.

In comparison with countries that have thresholds, the situation is clear. In the United Kingdom, even a trace amount falls within the definitions, so the argument of a small amount does not work as an exculpatory circumstance.

The practical conclusion is that the British threshold cannot be checked because it does not exist. However, one can know that the qualification depends on the charge, not on what the scale shows.

There is also no concept corresponding to a negligible amount. The scale of responsibility is built solely from the class of the substance and the charge brought.

What are the consequences of exceeding the threshold in the United Kingdom?

For mere possession of cannabis, as a Class B substance, in simplified proceedings, the penalty is three months of imprisonment or a fine up to 2500 pounds, or both penalties. From the indictment, the range reaches five years or a fine, or both penalties at once. The choice of procedure lies with the prosecutor, not the offender.

Cultivation of the cannabis plant has its own, much harsher position. From the indictment, it carries a penalty of up to fourteen years of imprisonment or a fine, or both penalties, and in cultivation, the table does not differentiate between classes of substances at all.

The reason is technical: the provision on cultivation directly concerns cannabis, not substances from a given class. Therefore, the same plant is subject to a stricter regime than would be inferred from its classification.

The same penalty of fourteen years applies to possession of a Class B substance with intent to supply to another person. Cultivation and preparation for transfer are therefore at the same level of threat.

The difference between five and fourteen years depends in practice not on the amount but on what the prosecutor charges. This is the most important consequence of the lack of a threshold in this law.

Does the medical marijuana program work in the United Kingdom?

The program has been in operation since November 2018 and is narrow in a place that patients usually do not check, as prescriptions cannot be issued by a family doctor. This is a subjective limitation, not a limitation of indications, and it is this that determines real availability. This limitation determines real availability more than the list of indications.

A cannabis preparation for medical use can only be ordered on prescription or by a doctor registered in the specialist register. This register is maintained under a separate act on the profession of a doctor.

There are two alternatives, both leading outside this path. The first is a product tested in a clinical trial, and the second is a drug with marketing authorization, issued under ordinary rules.

The regulation explicitly prohibits self-administration of such a preparation by smoking, except in scientific studies. This limitation concerns the method of administration, not the substance itself.

The definition includes preparations containing cannabis, cannabis resin, cannabinol, and its derivatives, but excludes dronabinol and its stereo isomers. This exception is often overlooked and determines the status of some preparations.

Is it allowed to cultivate cannabis for personal use in the United Kingdom?

Cultivation is a separate crime in the United Kingdom, punished more severely than possession, and this is one of the most surprising features of this system. From the indictment, it carries a penalty of up to fourteen years of imprisonment or a fine, or both penalties. The provision does not recognize the concept of cultivation for personal use.

The number of plants does not create any threshold here. There is no value below which cultivation would be treated more leniently, nor one above which the threat would increase.

The difference compared to possession is almost threefold, counting the upper limits. For possession from the indictment, the penalty is five years, and for cultivation, it is fourteen, even though it concerns the same plant.

It is worth comparing this with countries that treat home cultivation more leniently than possession. In this comparison, such a solution is, for example, Slovakia, and the United Kingdom is its opposite.

The practical conclusion is clear. One plant in an apartment falls under the same provision as cultivation conducted on a large scale, and the only difference is the dimension of the penalty imposed by the court.

It is worth noting that the provision speaks of the cultivation of the plant, not of the harvest. Responsibility arises regardless of whether anything was obtained from the plant.

Is HHC legal in the United Kingdom?

The United Kingdom is an exception in this comparison, as it does not mention this substance by name, yet it is still prohibited to trade it. The drug law has a clause about cannabinol derivatives, but its definition is narrow and includes only tetrahydro derivatives and alkyl homologues.

HHC is a hexahydro derivative, so it does not fall within this definition. We checked all four parts of the relevant annex: the only name with the hexahydro component refers to another, specific compound, not HHC itself.

The substance is caught by the Psychoactive Substances Act of 2016, which operates on the definition of effect, not on a list of names. A psychoactive substance is one that, by stimulating or suppressing the central nervous system, affects the mental functioning or emotional state of the person consuming it.

The effects are different from those of a listed drug, and this is the crux of the difference. Manufacturing, supplying, possessing with intent to supply, and importing and exporting are crimes, while mere possession is not, except for possession within a penal institution.

How the same substance is treated by other legal systems is described in our post about whether HHC is legal and safe.

Can cannabis medication be imported into the United Kingdom?

The British Psychoactive Substances Act contains a trap aimed precisely at travelers, and it is worth knowing before entering. The provision makes the intentional importation of a psychoactive substance a crime even when the perpetrator intends to consume it for its psychoactive effect. The provision concerns the act of importation itself, regardless of further intentions.

The effect is paradoxical. Importing for personal use is punishable, although mere possession of the same substance on-site is not punishable, so the border creates a responsibility that no longer exists once crossed.

The law sets a lower threshold of awareness than for possession. It is sufficient that the perpetrator knows or suspects, or should know or suspect, that the substance is psychoactive.

This formulation about duty is decisive here. Ignorance does not protect as it would under a provision requiring actual knowledge, so the argument of ignorance of the composition is often useless.

The practical conclusion for the reader is one: legal purchase in another country does not protect upon entry. We describe this more broadly in our guide on transporting medical marijuana.

It is worth comparing this with the rules of possession itself, described above. In importation, one is held accountable for an act whose equivalent committed on-site may be non-punishable.

How does the Food Standards Agency regulate CBD in food?

It treats it as novel food, meaning an ingredient requiring authorization before being placed on the market. The Food Standards Agency announced a public list of CBD products on March 31, 2022, and items that did not make it onto the list were to be removed from sale. Authorization is required for the ingredient itself, not the product brand.

The list is not set in stone: in February 2025, the agency removed over a hundred products from it, which means they fell out of the procedure and were withdrawn from stores.

Separately, the safety assessment has changed. In October 2023, following the opinions of the advisory committees COT and ACNFP, the temporary acceptable daily intake of CBD was reduced from 70 mg to 10 mg per day for an adult weighing 70 kg, with the purity of the preparation at 98 percent. This is an official safety ceiling, not a guideline on how much you should take. The difference is significant, as the reduction was sevenfold and affected the entire market at once.

The scale of this market explains the agency’s attention. A report by the Association for the Cannabinoid Industry and the Centre for Medicinal Cannabis, published in May 2021, estimated British CBD sales at 690 million pounds in the twelve months to the end of April 2021.

CBD cosmetics are subject to different regulations than food and do not undergo the novel food procedure. However, the manufacturer must still fit within the definition of an exempt product, as drug law applies regardless of whether the product is food or cream.

Is CBD legal in the United Kingdom?

It is legal by exception, not by general principle. Cannabis is a controlled Class B substance in the United Kingdom, and separately, cannabinol and its derivatives, including THC and THC-V, are controlled. Cannabidiol itself does not appear on the list; only the Home Office notes that isolating CBD without trace amounts of other controlled cannabinoids is practically impossible.

CBD products almost always contain a Class B substance.

The way out is the definition of an exempt product from reg. 2 of the Misuse of Drugs Regulations 2001. It has three conditions, and all must be met simultaneously. The product cannot be intended for administering a controlled substance to a human or animal. The substance must be packaged or combined with other ingredients in such a way that it cannot be easily recovered by readily available methods or in an amount posing a health risk. Finally, no component of the product may contain more than one milligram of a controlled substance.

The Home Office clarifies that the unit of measurement for the one-milligram threshold is the package, such as a bottle of oil, not the presumed typical serving. A product that does not fit within this definition is a Class B substance from the Schedule 1 list and requires a license from the office.

The popular 0.2 percent in Polish studies is not the British limit for finished products. The percentage value belongs to a separate licensing regime for the cultivation of industrial hemp and refers to the plant in the field, not to the contents of a bottle in a store.

What are the consequences in Poland for importing CBD from the United Kingdom?

Polish regulations apply to you regardless of what was legal in London, and the British threshold of one milligram of THC per package is not recognized by Polish law at all. In Poland, the content is measured in the plant, not in the finished product. The British label is not a reference point for the Polish authority.

The limit is set by art. 4 point 5 of the Act on Counteracting Drug Addiction, in the consolidated text Journal of Laws 2023 item 1939 and in the wording from March 24, 2022 (Journal of Laws 2022 item 763): the sum of delta-9-THC and tetrahydrocannabinolic acid in the tops may not exceed 0.3 percent of dry mass.

For shipments from the Islands, art. 55 applies, which is the provision on importation. The basic penalty is a fine and imprisonment for up to 5 years, with a lesser offense carrying a penalty of one year, and for a significant amount from 3 to 20 years. Mere possession upon return is described in art. 62, with a penalty of up to 3 years in the basic type.

Since January 1, 2021, the United Kingdom is outside the customs union of the European Union, so a package from London goes through customs like a shipment from outside Europe. Ordering oil that is legally on the shelf there is considered importation in Poland, not an intra-community purchase.

The practical conclusion primarily concerns mail orders. The fact that the seller operates legally in the Islands and sends goods without asking about the purpose does not provide the buyer with any protection on the Polish side of the border.

It is worth adding what this answer does not cover. The British medical pathway, opened on November 1, 2018, after moving cannabis products from list 1 to list 2, concerns prescriptions issued in the Islands, not transport to Poland; Polish thresholds for possession reach 10 years for significant amounts and do not recognize 2 years of imprisonment at all.

Both medical pathways started almost simultaneously, and that is the only thing that looks similar in this comparison. The British one has been operating since November 1, 2018, and the Polish one since November 1, 2017, and apart from that, both systems count thresholds completely differently.

Frequently Asked Questions

How much marijuana can I have in the United Kingdom?

The law does not contain any quantitative threshold, so even a trace amount falls within the definitions of a crime. The amount affects the severity of the penalty and the charge brought, but not whether the act is a crime.

What are the consequences in the United Kingdom for possession of marijuana?

In simplified proceedings, three months of imprisonment or a fine up to 2500 pounds, or both penalties. From the indictment, five years or a fine, or both penalties at once.

Why is cultivation punished more severely than possession?

Because the provision on cultivation directly concerns cannabis, not substances from a given class. From the indictment, it carries a penalty of up to fourteen years, while for possession, it is five, and the number of plants does not create any threshold.

Who in the United Kingdom can prescribe cannabis medication?

Only a doctor registered in the specialist register. A family doctor will not issue such a prescription, and the regulation also prohibits self-administration of the preparation by smoking, except in scientific studies.

Is possession of HHC a crime in the United Kingdom?

Mere possession is not, except for possession within a penal institution, and this results from the Psychoactive Substances Act of 2016, not from the drug law. Crimes include manufacturing, supplying, possessing with intent to supply, and importing and exporting.

Can I bring a legally purchased product into the United Kingdom?

Intentional importation of a psychoactive substance is punishable, even if the transporter intends to use it solely for themselves. It is sufficient that they should have suspected that the substance is psychoactive.

Sources

This article is for informational and educational purposes and does not constitute legal advice. The legal status described in the article is valid as of the date of publication: regulations regarding cannabis may change. Before making a decision, consult a lawyer or current legal acts.

Author: Michał Waluk