Small Business · Importing & Pricing
How to Calculate Landed Cost in 2026: The Formula Most Small Importers Get Wrong
If your cost-per-unit spreadsheet still says "supplier price + shipping," it is lying to you — and it has been lying since roughly the middle of 2025. Here is the full landed-cost formula, a worked example, and what to do with the number once you have it.
There is a particular kind of quiet failure that happens to small importers. Nothing dramatic goes wrong. Orders keep coming in. The supplier invoice looks the same as it did last year. And yet at the end of the quarter the money is simply not there, and nobody can point to the line where it went.
Almost always, the answer is the same: the business is pricing off unit cost when it should be pricing off landed cost. The gap between those two numbers used to be a rounding error for a lot of sellers. In 2026 it is frequently the entire margin.
Why your old landed-cost spreadsheet stopped being true
Two things changed, and both of them hit the same part of the calculation.
The first is the collapse of the de minimis exemption. For years, shipments valued under $800 could enter the United States duty-free under Section 321 — which is why a whole generation of dropship and direct-from-supplier models worked at all. That exemption was suspended for China and Hong Kong in May 2025, extended to all countries from 29 August 2025, and remains suspended. It is not coming back on its own, either: the One Big Beautiful Bill Act, signed 4 July 2025, terminates the exemption by statute effective 1 July 2027. Even if every executive action were struck down tomorrow, the law ends it.
The practical effect is brutal at the low end of the price range. A parcel that previously cleared at zero duty may now attract somewhere between 10% and 54% in combined duties depending on origin and product type. On genuinely cheap goods, the duty can exceed the value of the item — a $12 product from China can carry $14 to $24 in combined duties and processing fees once everything is applied.
The second change is layering. A single HTS line no longer produces a single rate. On top of the base most-favoured-nation duty you may be stacking Section 301 tariffs (broadly 7.5% to 25% on Chinese-origin goods), Section 232 tariffs (25% on steel and aluminium and their derivatives), and, on some categories, antidumping and countervailing duties that can run into three figures as a percentage. These do not replace each other. They add.
Put those together and the widely cited rule of thumb for consumer goods imported from China — a total landed cost roughly 40% to 50% above the product price once duties, fees and logistics are counted — stops sounding alarmist and starts sounding like arithmetic.
The actual formula
Landed cost is the total cost of getting one unit of inventory to the point where you can sell it. Not to the port. Not to the door. To sellable.
…all divided by the number of sellable units in the shipment.
Component by component, the ones people forget:
- Product cost — the supplier invoice, plus any tooling, sampling or inspection amortised across the run. If you paid $900 for third-party QC on a 3,000-unit order, that is $0.30 a unit and it belongs here.
- Freight — ocean or air, plus fuel and peak-season surcharges. Quote it per shipment, allocate it per unit by volume or weight, not by unit count, if your SKUs differ in size.
- Cargo insurance — usually a small percentage of CIF value. Small, but it is not zero.
- Import duties — customs value × duty rate, then every applicable additional layer. This is where classification matters more than anything else in the model.
- Merchandise Processing Fee (MPF) and Harbor Maintenance Fee (HMF) — ad valorem fees with floors and caps. On small formal entries the MPF minimum can be a meaningful per-unit number; on large ones the cap makes it trivial. Both behave non-linearly, which is exactly why averaging breaks.
- Customs broker fee — per entry, not per unit. A fixed cost that punishes small, frequent shipments and rewards consolidation.
- Drayage, inland freight, last mile — port to warehouse, warehouse to fulfilment centre.
- Handling, storage, prep — receiving, labelling, poly-bagging, long-term storage fees.
- Shrinkage — the unglamorous one. If 3% of the shipment arrives damaged, your true per-unit cost is spread across 97%, not 100%.
A worked example
Take 1,000 units of a moulded plastic homeware item from China. Supplier price $4.20 a unit, so $4,200 on the invoice. Ocean freight for the partial container comes to $1,150. Insurance, $60. Say the applicable duty stack lands at 32% of a customs value of $4,200 — $1,344. MPF and HMF add roughly $75. The broker charges $145 for the entry. Drayage and inland freight, $420. Receiving and prep at the 3PL, $0.35 a unit, or $350. Two percent of the shipment arrives crushed.
Total outlay: $7,744. Sellable units: 980. Landed cost per unit: $7.90.
The supplier invoice said $4.20. The real number is $7.90 — an 88% increase over the figure most people are quietly using when they set a price. If you built your retail price on a 3× markup of $4.20, you priced at $12.60 and you are earning $4.70 a unit before you have paid for advertising, payment processing, returns or your own time. That is not a business; that is a hobby with logistics.
Three mistakes that show up again and again
Averaging one duty rate across a mixed shipment. If a container holds four SKUs across three HTS codes with different Section 301 exposure, a blended rate produces a number that is wrong for every single SKU. It will make your worst product look survivable and your best product look mediocre, which is precisely the wrong signal to act on.
Treating per-entry costs as per-unit costs. Broker fees, MPF minimums and customs bonds attach to the entry. Halve your order size and your per-unit landed cost goes up, sometimes sharply. This is the single most common reason a "we'll just order smaller and test it" plan quietly destroys the margin it was meant to protect.
Recalculating once a year. Duty rates, freight indices and fee schedules all moved in 2025 and 2026. A landed-cost model built before the de minimis suspension is not slightly out of date — it is structurally wrong, because the largest single variable in it was set to zero.
What to do once you know the real number
Knowing your landed cost is only useful if it changes a decision. In practice it changes three.
It changes your price. If landed cost rose 30% and your price did not, you have already taken the loss; the only question is when you notice. Raising prices is uncomfortable, but it is far less damaging than the alternative, and it is a solvable communications problem — our price raise rescue tool drafts the customer-facing message, and value pricing helps you reframe the offer so the increase reads as repositioning rather than a squeeze.
It changes your SKU mix. Landed cost per unit, compared honestly against sell-through, usually reveals that a minority of your catalogue is carrying the rest. Some SKUs are worth reordering at volume; some should be discontinued the moment current stock clears.
It changes your order cadence. Because so many costs are per-entry rather than per-unit, consolidation is often worth more than a supplier discount. Run the number before you negotiate.
→ Calculate your landed cost
Honest limits
A calculator — ours or anyone else's — produces a planning estimate, not a customs ruling. Three caveats worth stating plainly.
Classification is not a guess. The HTS code determines the rate, and picking a code because it looks close enough is how importers end up with retroactive duty bills. If your product sits near a classification boundary, that is a conversation for a licensed customs broker or a trade attorney, and it is cheap insurance relative to the downside.
Rates move. Chapter 99 provisions, exclusion lists and AD/CVD orders change on their own schedule. Anything you calculate today is a snapshot, which is an argument for recalculating quarterly rather than for not calculating at all.
And none of this is legal, customs or tax advice. It is arithmetic, applied honestly. What it can do is stop you setting a price on a number you already know to be wrong.
Where this fits
Landed cost is one of a small handful of numbers that decide whether a product business works — alongside acquisition cost, repeat rate and the price you are actually able to charge. If you are earlier in that process, it is worth checking whether the product is worth importing at all: Sellable pressure-tests the offer, Paydirt looks at where the money in the model really is, and Product Description handles the listing copy once you have decided to go. Elsewhere on the blog, how small businesses are actually using AI in 2026 covers the operational side, and getting your first 1,000 customers with free tools covers demand.
The unglamorous truth about importing is that the businesses which survive tariff volatility are rarely the ones with the best supplier. They are the ones who knew their real cost per unit to the cent, and repriced early enough that they still had a choice about it.
Frequently asked questions
What is the landed cost formula?
Landed cost = product cost + freight + insurance + duties + customs fees (MPF and HMF) + broker fees + inland and last-mile delivery + handling and storage, divided by the number of sellable units in the shipment. The last part matters: divide by units that actually arrive in saleable condition, not units ordered.
Is the $800 de minimis exemption coming back in 2026?
No. It was suspended for China and Hong Kong in May 2025 and for all countries from 29 August 2025, and it remains suspended. Separately, the One Big Beautiful Bill Act terminates the exemption by statute effective 1 July 2027, so even a successful legal challenge to the executive actions would not restore it beyond that date.
How much more does importing cost now than the supplier invoice?
It varies enormously by product and origin, but a widely used rule of thumb for consumer goods from China is a total landed cost around 40% to 50% above the product price once duties, fees and logistics are included. On low-value items the multiple can be far worse, because per-entry fees and minimum charges do not scale down.
Why does ordering smaller quantities raise my cost per unit?
Because several of the largest cost components attach to the customs entry rather than the unit. Broker fees, MPF minimums and bond costs are broadly the same whether you import 200 units or 2,000. Halving the order roughly doubles those costs per unit, which is why consolidating shipments often beats negotiating a supplier discount.
Can I rely on a landed cost calculator instead of a customs broker?
Use it for planning, pricing and scenario testing — that is what it is good at. It is not a substitute for correct HTS classification, and misclassification is what produces retroactive duty bills. If your product sits near a classification boundary or falls under AD/CVD orders, get a licensed customs broker to confirm the code.