A quotation that ends at the factory gate is not a cost. The number that decides whether a pair of frames is profitable is the landed cost — the price per unit once freight, insurance and duty are in. Eyewear is light and high-value, which makes it behave differently from most cargo, and getting the HS code wrong is the fastest way to either overpay duty or face a customs hold. This article sets out the codes, the rate logic, and the arithmetic for landed cost.

Which HS code your product falls under

The Harmonized System codes that matter for this category sit in Chapter 90:

The mistake buyers make is classifying a finished pair of sunglasses under 9003 (frames) because they think of it as "a frame". A mounted, finished pair is 9004, and 9004.10 specifically for sunglasses. The distinction matters because the two headings can carry different rates, and because misclassification is a compliance problem rather than a harmless rounding.

Duty rates: EU, US and UK at a glance

Rates change, and a precise figure should always be confirmed against the current tariff for the exact subheading and country of import. As a planning reference, eyewear duties in the major markets are low single-digit percentages rather than high protective rates, which is part of why the category is tradeable:

Two things to keep in mind. First, "indicative" means exactly that — confirm before committing a margin. Second, trade remedies and additional tariffs (such as the US Section 301 measures) can sit on top of the base MFN rate, and those are the ones that surprise importers who only checked the base number.

Calculating landed cost per unit

Landed cost is the factory price plus everything that happens between the factory and the shelf, divided by the number of sellable units. A working formula:

Landed cost per unit = (FOB value + international freight + insurance + import duty + brokerage and handling + local delivery) ÷ number of units

Worked example using rounded, illustrative figures for a 10,000-unit container of frames:

The takeaway is that duty is rarely the largest line — freight and the FOB value dominate — but duty is the line most often forgotten in a quotation review, and it is the one that turns a "good" ex-works price into a thin margin.

Air vs sea for eyewear: the weight-to-volume trap

Eyewear is light but occupies a defined volume, so freight is usually charged on volumetric weight, not actual weight. A carton of frames may weigh little but book a large space relative to that weight, which pushes air freight cost up disproportionately.

The practical rule: use air only when the cost of being out of stock exceeds the freight premium, and even then ship the minimum. Building the first production run on air freight is the most expensive way to land eyewear.

Choosing an Incoterm that matches your forwarder relationship

The Incoterm on the order decides who pays and who carries risk at each handoff. For eyewear the common choices are:

The right term is the one that matches who controls the better freight rate. A buyer with a negotiated ocean contract usually does better on FOB than on CIF; a small buyer with no logistics team may prefer DAP to keep the process simple, accepting a higher all-in price for the convenience.

Documents your customs broker will ask for

A clean clearance depends on documents matching the goods and the code. Prepare:

·      Commercial invoice— showing the HS code, value, currency and Incoterm.

·      Packing list— carton count, dimensions and weights for volumetric checks.

·      Bill of lading / air waybill— the transport document.

·      Certificate of origin— needed for preferential duty rates where applicable.

·      Product description and materials— enough for the broker to confirm the heading (e.g. acetate front, metal temple).

Mismatches between the invoice description and the declared code are the usual cause of holds. The description "sunglasses" must align with code 9004.10, and the materials listed must support the subheading.

Frequently asked questions

Are frames and sunglasses the same HS code?

No. Frames and mountings are 9003; finished sunglasses are 9004.10. Mounting a lens changes the heading, and the rate and compliance path change with it.

Is duty the biggest part of landed cost?

Rarely. The FOB price and freight dominate; duty is usually a smaller line but the one most often omitted from quotations, which is why it surprises margins.

Does origin affect the duty rate?

Yes. Preferential trade agreements can reduce or zero the rate if you hold a valid certificate of origin. The base MFN rate applies without it.

Which Incoterm keeps me most in control?

FOB or EXW, if you have your own freight arrangements. CIF and DAP shift control to the seller; convenient, but you pay the seller's rate and may not see the breakdown.

Should I air-freight the first order to be fast?

Only if being late costs more than the freight. Eyewear's light-but-bulky nature makes air expensive per unit, so reserve it for genuine emergencies and top-ups.