Why a cheap CIF quote can cost more at the UK port
Under CIF, the Chinese supplier pays freight and insurance to the named UK port, but its forwarder chooses the UK agent, and you pay that agent's charges after arrival: terminal handling, unpacking for shared containers, documentation, customs entry and delivery. A freight line that looks cheap can be recovered there, so ask for those charges in writing before paying.
Under CIF the Chinese supplier's forwarder picks the UK agent, and you pay its charges on arrival. Why a low freight line needs checking before you pay.

Who pays what under CIF
CIF, cost, insurance and freight, means the supplier arranges and pays sea freight and insurance to the named UK port. Everything after the goods arrive is for the buyer: the charges at the terminal, the customs entry, duty and import VAT, and haulage to your address. See Incoterms explained.
The catch is control. The supplier's forwarder in China books the freight and nominates its own partner in the UK. You did not choose that partner and have no agreed price with it, but it holds the documents you need to release the goods.
“A price that looks too low usually is. Going straight to a factory is cheapest on paper, but you pay for it in communication, time zones and trial and error. What you pay a good intermediary for is the service.” — Bono Xu, Cambridge China Bridge
Why a low freight line is a warning
Forwarders are paid across the whole shipment, not only on the ocean leg. If the freight line on a proforma looks low for the volume and weight, the margin may be collected at the UK end instead, through terminal handling, delivery order and documentation fees, or unpacking charges for a shared container. That is not always the case, but it is the reason to ask.
Ask the supplier for the UK agent's name and contact, and ask the agent for its charges for your shipment in writing before you pay the balance. If you prefer, get your own forwarder's quote on FOB terms and compare the two on the same basis; our guide to landed cost shows how.
Shared container or a full 20ft
A shipment of a few cubic metres usually travels as LCL, sharing a container. LCL is charged on volume or weight and has its own unpacking charges at the UK depot. As the volume grows, a full 20ft container (FCL) can become competitive, and it avoids unpacking at a shared depot. For a shipment in between, ask for both prices; see sea vs air freight and shipping from China to the UK.
Customs value and VAT under CIF
A CIF price already includes the freight and insurance to the UK, so it is close to the customs value that duty is charged on; see customs value. Import VAT is charged on the customs value plus duty plus incidental costs to the first UK destination, so some of the UK-side charges also carry VAT. Our hidden costs guide lists the rest.
Checking a quote before you pay
If you have a CIF quote from a Chinese supplier, we can check it before you pay, with a free preliminary review, including whether the freight line and UK-side charges look complete. Cambridge China Bridge can also quote one UK landed price covering freight, duty and clearance.
A DDP quote hides a different risk: the customs entry may not be in your name, so you may get no import VAT evidence; see whether you can reclaim VAT on DDP shipments.
Frequently asked questions
Who pays UK port charges on a CIF shipment?
The buyer. CIF covers freight and insurance to the named UK port; the terminal, documentation, customs and delivery charges after arrival are yours.
Why is the CIF freight so cheap?
Sometimes it is simply a good rate, but a low freight line can be offset by higher charges from the UK agent the supplier's forwarder nominated. Ask for those charges in writing before paying.
Should I ship LCL or a 20ft container?
For small volumes LCL is usual; as volume grows a 20ft container can be competitive and avoids shared-depot unpacking. Ask for both prices when in doubt.
Is FOB better than CIF for a UK buyer?
FOB lets you choose your own forwarder and know the UK charges before shipping. CIF is convenient, but the UK agent is chosen for you.