Are There Restrictions on What I Post When Sending a Parcel?

Restrictions on Sending a Parcel: What You Need To Know

Yes. Strict legal and safety rules apply to every parcel you send. These restrictions depend entirely on the item’s nature, its value, and its final destination. You must adhere to specific prohibitions on dangerous goods, comply with international customs regulations, and follow rigorous packaging standards. Failure to do so often results in the confiscation of your goods, destruction of the parcel without compensation, or even prosecution for violating postal laws. Navigating these rules can feel like a minefield. Many senders unknowingly violate regulations by treating domestic and international lists as identical, or by assuming that “full cover” insurance protects prohibited items.

Prohibited vs. Restricted: Knowing the Difference

Before you package anything, you must distinguish between items that are completely banned and those that simply require special handling.

• Prohibited Items: These goods are refused by carriers under any circumstances due to safety or legal risks. They pose immediate threats to handlers and infrastructure. Categories such as explosives, ammunition, and illegal narcotics are universally banned.
• Restricted Items: These goods can travel through the postal network only if you meet specific conditions. These conditions typically involve strict volume limits, specialised packaging (like “triple packaging” for liquids), or the use of a specific service.

For a detailed breakdown, review the Royal Mail guidance on personal customer prohibitions and restrictions.

Dangerous Goods and Hazardous Materials (Strictly Banned)

Safety regulations ban items that present physical threats, such as fire or explosion, during transit. The Civil Aviation Authority (CAA) and courier networks enforce a zero-tolerance policy for these materials.

• Explosives and Ammunition: You cannot send fireworks, flares, or live ammunition through standard post.
• Flammable Compressed Gases: Lighters containing fuel, camping gas cylinders, and fire extinguishers remain prohibited.
• Corrosives and Toxins: Acids, mercury, and severe pesticides are too dangerous for courier networks.
• Flammable Liquids: Solvents, certain paints, and fuels fall under the prohibited hazardous materials list.

Sending Lithium Batteries and Electronics

Lithium batteries power most modern electronics, but they pose a significant fire risk (thermal runaway) if damaged or short-circuited. Consequently, postal rules strictly control their transport.

• Installation is Mandatory: You must install batteries inside the device they power. Loose lithium batteries (including power banks sent alone) are generally prohibited in standard mail.
• Watt-hour Ratings: Lithium-ion batteries must typically stay under 100 Wh per battery, while lithium-metal cells must not exceed 2g of lithium content.
• Defects: You cannot send damaged or recalled batteries under any circumstances.
• Rigid Packaging: Strong packaging must protect the device to prevent accidental activation. The device must be switched off.

For further details on safety compliance, refer to the guidance on shipping lithium batteries within equipment.

Liquids, Perfumes, and Toiletries

Many everyday grooming products contain alcohol, making them flammable and subject to strict volume rules.

• Perfumes and Aftershaves: You may send these within the UK if the volume per item is 150ml or less. You must limit the total to four items per parcel and use the ID8000 label. Note that standard couriers generally prohibit the international postage of perfume.
• Nail Varnish: UK post allows up to 30ml per bottle, provided you pack it to prevent breakage.
• Packaging Requirement: Liquids require “triple packaging”: a leak-proof primary container, a watertight secondary bag with absorbent material, and a strong outer box.

Verify exact volume limits before posting, as postal giant UPS outlines specific prohibited and restricted item policies.

The Offensive Weapons Act and Bladed Items

The Offensive Weapons Act 2019 changed how you can send knives and bladed articles to prevent delivery to minors.

• Residential Bans: You cannot send knives, bladed products, or sharp instruments to residential addresses using standard services.
• Age Verification: You must use an Age Verification Service for allowed items to ensure the recipient is over 18.
• Exceptions: Folding pocket knives with a blade under 3 inches are generally exempt from the strictest bans but still need secure packaging.

Senders must comply with these obligations to avoid prosecution, as detailed in the statutory guidance for the Offensive Weapons Act 2019.

Valuables, Cash, and Jewellery

Sending cash, coins, or banknotes through standard first-class mail is strictly prohibited. If you post money using standard services, you possess no right to compensation if the item is lost or stolen.

• Required Service: To send cash or jewellery securely, you must use Royal Mail Special Delivery Guaranteed. This service provides the necessary security, tracking, and compensation cover.
• Insurance Caps: Most courier policies define “prohibited assets” to include loose precious stones and bullion. Check the Post Office guidelines on sending valuables to secure appropriate insurance cover.

International Customs and Biosecurity

While an item might be legal to post within the UK, cross-border shipping introduces complex customs enforcement.

• Biosecurity: Countries like Australia and New Zealand enforce strict agricultural laws. Parcels containing seeds, plants, or homemade food are frequently rejected to protect local ecosystems.
• Customs Declarations (CN22/CN23): You must complete these forms accurately. Vague descriptions like “electronics” often trigger manual inspections or returns.
• Prohibited Exports: Check for country-specific sanctions or bans on high-tech electronics or luxury items.

The government provides detailed guidance on shipping dangerous goods to help you navigate these regulations.

Courier Comparison: Royal Mail vs. Evri vs. DPD

Couriers do not share the same “allowed” list. Evri or DPD might ban an item permitted by Royal Mail.

Item Category	Royal Mail (Domestic)	Evri (Domestic)	DPD (Domestic)
Perfume	Allowed (Max 150ml, ID8000 required)	Prohibited on most standard services	Prohibited (Strict liquid ban)
Nail Varnish	Allowed (Max 30ml, 4 items max)	Prohibited (Flammable liquid)	Prohibited
Liquids >1L	Allowed (Up to 1L per item)	Prohibited (Max 1L usually applies)	Prohibited (General liquid ban often applies)

Always verify directly with the carrier. You can review what you can and cannot send with Evri or check the DPD prohibited goods list.

Consequences of Non-Compliance

Failing to adhere to these rules results in severe consequences.

1. Destruction of Goods: Couriers have the legal right to dispose of parcels containing prohibited items without offering compensation.
2. Prosecution: Sending undeclared dangerous goods (like lithium batteries) is a criminal offence. The Civil Aviation Authority (CAA) actively enforces dangerous goods regulations.
3. Void Insurance: Coverage is voided immediately upon the discovery of restricted goods. You will receive zero compensation for lost or damaged prohibited items.

My Answers to Your Questions

Can I send batteries in the post if they are not in a device?

No, you generally cannot send loose lithium batteries or power banks via standard post. You must install them within the equipment they power to meet safety regulations.

Can I send perfume or nail polish?

Yes, but only within the UK via Royal Mail, and you must strictly adhere to volume limits (150ml for perfume, 30ml for nail varnish). You must present the parcel at a Post Office counter to apply the ID8000 consumer commodity label.

Are there restrictions on sending homemade food abroad?

Yes. Most countries enforce strict customs rules on meat, dairy, and fresh produce. You should check the import restrictions of the destination country. Within the UK, food must withstand a journey of at least 48 hours and be packed to prevent leaks.

What happens if I accidentally post a prohibited item?

Carriers will likely destroy the parcel without compensation. You may also face prosecution or fines if the item poses a safety risk.

Do I need to declare gifts to customs?

Yes. You must declare all items, including gifts, on the CN22 or CN23 form. You must state the value accurately; under-declaring value to avoid taxes is illegal and can lead to seizure.

What things am I not allowed to send by post or courier?

You might think you can send just about anything in the mail, but there are some strict no-go items. For starters, dangerous things like explosives, flammable liquids, and toxic substances can’t be sent. Also, anything illegal, like drugs or weapons, is definitely off-limits. Even everyday items like perishable foods or live animals are usually not allowed because they can spoil, cause a mess, or suffer harm during transit. So, before packing up that mystery box, it’s worth double-checking what’s banned to avoid your parcel being stopped or thrown out.

Are there items I can’t send via courier services?

Yeah, couriers have rules too. They won’t accept items that could endanger their staff or the delivery process—think sharp objects or chemicals without proper packaging. Also, there are weight and size limits, and anything that’s just plain illegal or unsafe gets automatically rejected. Sometimes people think a courier is fine for sending personal items that are fragile or odd-shaped, but if it doesn’t meet the courier’s guidelines, it simply won’t fly.

What are the parcel restrictions for InPost lockers or services?

InPost is super handy, but their lockers have their own rules. Usually, they only accept parcels up to a specific size and weight, so you can’t send giant or heavy boxes through those lockers. Plus, sensitive items, like batteries or liquids, might be restricted. They also won’t accept anything illegal, hazardous, or perishable. So, if you’re thinking of sending something through InPost, make sure it fits nicely and isn’t on their forbidden list; otherwise, your parcel might get rejected or lost in the shuffle.

What exactly shouldn’t go inside a parcel?

If you’re packing a parcel, avoid putting in anything that could leak, explode, or be easily damaged. This includes flammable stuff, corrosive chemicals, live animals, or fresh food that spoils quickly. Things like sharp objects without protection can be risky for handlers. Also, avoid sending cash or valuables in the mail—they can get lost or stolen. Keep in mind, parcels shouldn’t carry anything illegal or prohibited by law. Sending those kinds of items not only messes up your shipment but can get you into real trouble.