UK to USA Amazon FBA Guide

The practical consequence is that customs entry and brokerage costs are now largely fixed per shipment rather than per unit. Importing in bulk into a US warehouse and fulfilling domestically pays those costs once instead of on every parcel — which is why holding US stock has stopped being an optimisation and started being the default.

The Post-Brexit Position

There is no US–UK free trade agreement. The two governments announced an Economic Prosperity Deal in May 2025 covering specific sectors — metals and automotive among them — but that is a narrow framework, not a general tariff reduction, and its implementation has been amended more than once since. Brexit did not create a preferential lane into the US for ordinary consumer goods.

What this means practically: your duty cost is determined by your product's HTS classification, its country of origin, and whatever additional duty layers are in force on the day of entry — not by which European port you ship from. Sector-specific measures do exist, so if you sell metals, metal-derivative goods or automotive parts, confirm your position with a broker rather than assuming the general rate.

Shipping from the UK

Method	Typical transit to US East Coast	Best for
Sea freight LCL	12–18 days plus handling	Pallet volumes; lowest cost
Sea freight FCL	10–14 days port to port	Container volumes
Air freight	3–5 days	Restocks and higher-value goods
Express courier	2–4 days	Samples, first orders

The UK has a genuine geographic advantage over Asian origins here: transatlantic sea freight to the US East Coast is roughly a third of the transit time from China. For a UK brand, sea freight is viable for regular restocking rather than only for initial stock builds.

Why UK Sellers End Up Holding US Stock

Three pressures push the same way:

• Delivery expectation. A US customer comparing your listing to a domestic one is comparing delivery dates. Transatlantic post cannot compete with two-day domestic ground.
• Returns. A UK-based seller receiving a US return pays international return freight that frequently exceeds the item's value. With US stock the return comes back domestically and can be resold.
• Duty efficiency. Since de minimis ended, per-parcel duty and brokerage on every order is a permanent margin drag. Bulk import pays it once.

The Delaware Sales Tax Point

Delaware charges no state sales tax. When inventory is purchased into and shipped from a Delaware warehouse, those inventory purchases are made in a 0% state.

This is separate from import duty — duty is federal and applies wherever your warehouse sits. The Delaware benefit is on the sales tax side. Confirm your own position with a tax advisor, because it depends on your entity structure and registrations.

Getting Started from the UK

1. Confirm your HTS classification and duty rate with a customs broker before ordering.
2. Ship a first consignment to our Claymont, Delaware address — sea freight for volume, air for a smaller pilot.
3. We receive, count, photograph and log within 24 hours, then prep to spec.
4. Fulfil domestically: FBA replenishment, marketplace orders, or DTC.

Carton and parcel receiving is free, pallet receiving is $25.00 per pallet, and FBA prep runs $0.69–$2.00 per unit by monthly volume.

Tariff Position — Reviewed 5 September 2026

US tariff policy has moved repeatedly since 2025: Section 232 measures on metals and derivative goods, country-specific layers introduced, amended and challenged in court, and further changes still working through. Any specific rate we printed here would be wrong within weeks.

So here is the durable version. What you pay on a shipment from the UK is decided by three things: your product's 10-digit HTS classification, its country of origin (where it was made, not where it shipped from), and whatever additional duty layers are in force on the date of entry. Only a licensed customs broker can give you the number that will actually apply, and it should be confirmed close to shipment rather than at the planning stage.

What we can tell you with confidence is the direction: duty and entry costs are now charged per shipment, not per parcel. That is what makes bulk import into a US warehouse cheaper than cross-border parcels, whatever the headline rate turns out to be.

What Your Forwarder Must Send With the Goods

Missing paperwork is the most common reason a shipment sits at the port at your expense. Before anything leaves the UK, make sure your supplier or forwarder has:

• Commercial invoice — value, currency, Incoterm, and a description a customs officer can match to an HTS code. Vague descriptions cause holds.
• Packing list — carton count, dimensions, gross and net weight per carton. We reconcile against this at receiving.
• HTS classification for every line, confirmed by your broker rather than guessed by the factory.
• Importer of Record details — your EIN or your broker's arrangement. Without an IOR nothing clears.
• Customs bond — single-entry for a one-off, continuous if you import regularly. A continuous bond usually pays for itself by the third shipment.
• ISF filing for ocean freight, submitted at least 24 hours before the container is loaded. Late filings carry penalties that dwarf the filing fee.
• Power of attorney to your broker, signed before the goods sail rather than while they wait.

A Landed-Cost Example

Numbers make the argument better than adjectives. Take 1,000 units at a $6.00 factory cost, shipped from the UK in one consignment:

Line	Per unit	1,000 units
Factory cost	$6.00	$6,000
Freight and drayage to Claymont	$0.95	$950
Duty (assumed 10% for illustration)	$0.60	$600
FBA prep at the 1,000-unit tier	$0.99	$990
Landed cost	$8.54	$8,540

The duty line is an illustration, not a quote — substitute your own rate once your broker has classified the product. What the table shows regardless of that number is the shape of the cost: freight and prep are per unit and predictable, and the entry costs behind the duty line are paid once for the whole consignment rather than on each of a thousand parcels.

Storage sits outside this table because it depends on how long the stock rests. Our warehouse sizing guide works that part through, and the cost calculator runs your own volume.

What We See Go Wrong on Arrival from the UK

These are the four issues our receiving team logs most often on shipments from the UK. None of them are exotic; all of them cost a day or two when they are found at our dock instead of at the factory:

1. UK retail packaging with the domestic barcode still showing. Every barcode other than the FNSKU has to be covered, and EAN codes printed directly on the box are the hardest case.
2. Battery-containing goods without UN38.3 test documentation. This stops a shipment at the airline rather than at customs, and the paperwork is the supplier's to produce.
3. Consolidations arriving as loose parcels rather than a palletised consignment. Twenty parcels cost more to receive than one pallet and are far easier to lose in transit.
4. Product weights declared in kilograms on documents priced in pounds sterling. Not a customs problem, but it is the most common source of a wrong dimensional weight estimate.

Every one of these is cheaper to fix before the goods sail. Send us a photo of a packed carton and a copy of the packing list before your first shipment and we will tell you what will not pass.

When Holding US Stock Does Not Pay

The honest counter-case, because it exists. Bulk import into a US warehouse stops making sense when:

• Volume is low and value is high. Under roughly 200 units a month on an expensive item, the capital tied up in stock costs more than the per-parcel savings.
• The product is a one-off drop. A single seasonal run that sells out in three weeks may genuinely be better served by direct shipping.
• Demand is untested. Prove the listing with a small consignment before committing a container. We would rather receive 200 units twice than 5,000 units once and watch them age.

If your situation is one of these, say so when you contact us and we will tell you honestly rather than sell you storage you do not need.

Frequently Asked Questions

Is there a US–UK trade deal that reduces duty?
No. UK-origin goods enter the US on standard most-favoured-nation rates. Your duty depends on HTS classification, not on shipping from the UK rather than elsewhere in Europe.

Can UK sellers still use the $800 de minimis exemption?
No. It ended for all countries on 29 August 2025 and was made permanent regulation in June 2026.

How long does sea freight from the UK to Delaware take?
Roughly 10–14 days port to port for a full container, or 12–18 days for LCL including handling — about a third of the transit from China.

What happens to US returns if I am based in the UK?
International return freight often exceeds the item's value, so many sellers refund without recovery. Holding US stock lets returns come back domestically and be resold.

Does Delaware reduce my import duty?
No. Duty is federal and applies wherever your warehouse is. Delaware's benefit is 0% state sales tax on inventory purchases.