What you may not sell between private individuals

Prohibited, without exception

Weapons and similar items. Firearms, ammunition, essential weapon components. Bladed weapons that require authorisation, defence sprays, tasers. Explosives and fireworks in the most powerful categories.

Narcotics, precursors, production equipment, and cannabis with a THC content of 1% or more.

Prescription medicines and implantable medical devices.

Tobacco, nicotine products and e-cigarettes. The revised Federal Act on Tobacco Products, adopted in 2025, prohibits advertising these products on the internet, except on sites that check users' age — and a listing is advertising. It is due to take effect in early 2027; okazio applies it already. It is the only prohibition on this list whose rationale targets the medium itself.

Protected species, ivory, trophies, CITES products.

Stolen goods and items with no justifiable provenance — including a phone or a bike that has been reported stolen.

Counterfeits and fake certificates of authenticity. Selling a copy is prohibited even if you present it as one.

Official documents: number plates, permits, diplomas, identity documents.

Personal data, address files, contact lists.

Digital accounts, subscriptions, software keys transferred without the right to do so.

Means of payment: bank cards, cheques, crypto-assets, credit, financial services. Gift cards and vouchers. Gambling, bets, lottery tickets.

Pornographic content and sexual services.

Organs, tissue, blood products, breast milk.

Allowed, but with conditions

Alcohol can be sold. The obligation arises at the handover: it is up to the seller to check the buyer's age. A website is not present at the moment of handover, which is why the listing itself is allowed.

Food supplements and cosmetics: sealed and in date.

Replicas, airsoft and collectors' weapons: the listing is refused if it presents the item as a usable weapon.

Live animals: the listing must come from the animal's keeper.

Dogs and puppies: see the dedicated guide — the listing must carry four mandatory details.

The principle behind the rest

Three questions settle almost every doubtful case:

1. Does the law target the person who hands the item over? Then it is up to the seller to check — alcohol, for example.
2. Does the law target the person who publishes? Then the listing itself is at issue — tobacco.
3. Can the buyer verify what they are buying? An account, data, a right transferred without title: no. Hence the ban.

If in doubt

Describe the item honestly and publish. A doubtful listing goes to review and you receive an explanation — that is better than an item removed without a reason, and far better than a sale that puts you in the wrong.