Your supplier sends over a quote. $5.50 a unit, FOB Shenzhen. Looks solid on paper. Then the goods land in the UK and the real bill shows up: duty, VAT, freight surcharges, port fees. Suddenly the margin you planned around has shrunk to almost nothing. I’ve watched it happen to buyers more times than I’d like to admit. This breakdown is the same cost model we walk clients through, so you can price accurately before committing, not after the ship has sailed.

1. Start With the Real Supplier Invoice

The supplier’s number is your starting point, but never treat it as fixed. Prices can swing 20-40% depending on order volume, material specs, and payment method. Take bamboo cutting boards. At 1,000 units you might pay $5.50/unit FOB Shenzhen. Push the order to 5,000 and that often drops to $4.20/unit. One thing matters more than anything else here: always get your quote on a FOB (Free on Board) basis from the origin port, whether that’s Shenzhen, Guangzhou, or Shanghai. Skip EXW pricing. FOB already covers the cost of loading your goods onto the vessel.

Payment expenses belong in the model too. Bank wires typically eat 1-3%, and third-party platforms can add another 0.5-1% on top. What I always do is request a Proforma Invoice (PI) that itemises the unit price, packaging, and local port charges separately. It heads off most arguments before they start.

2. Freight: The Biggest Wild Card

Nothing on your spreadsheet moves around as much as shipping. Fuel prices, peak season, global politics… rates respond to all of it. Here’s a recent snapshot for a major UK port:

  • Sea Freight (FCL): A 20ft container from Shenzhen to Felixstowe currently runs £2,200-£3,500. A 40ft goes for £3,800-£5,500. Transit takes about 28-35 days.
  • LCL (Less than Container Load): Smaller shipments cost $85-$150 per cubic meter. Watch the minimums, though. Most forwarders bill a floor of 1-2 CBM, which stings if you’re only sending half a pallet.
  • Air Freight: Expect to pay 5-7 times more, typically £3.50-£5.50 per kg for consignments over 100kg. The payoff is speed: your goods arrive in 5-8 days.

The classic mistake is accepting a partial number. A serious freight quote must include origin trucking, Chinese customs clearance, the Bill of Lading fee, and fuel surcharges. Insist on an CIF (Cost, Insurance, Freight) price to your UK port instead. That’s the complete figure before your goods even arrive.

The Hybrid Approach

The smartest importers I know don’t pick just one method. They mix. One client of ours sells Bluetooth