Every importing failure mode has the same root: someone priced their product off the factory quote instead of the landed cost. The factory says $4.50, you sell at $12.99, feels like a great margin — until freight, duty, and a dozen smaller lines each take their bite, and the real cost turns out to be $8.10.
Landed cost is the number your business actually runs on. Here's the complete formula, a worked example, and the mistakes that make spreadsheet models lie.
The Formula
LANDED COST = Product cost
+ Inland costs (origin)
+ International freight
+ Destination charges
+ Duty & tariffs
+ VAT/tax (cash flow layer)
+ Insurance
+ Financing & fees
+ Shrinkage allowance
Now each layer in detail.
1. Product cost
The price you actually pay — not the quote. Include:
- Unit price at your negotiated tier
- Tooling/molds amortized over expected lifetime volume (a $3,000 mold over 10,000 units = $0.30/unit — real cost that quotes hide)
- Sample costs (yes, they belong in your costing)
- Packaging and customization charges
2. Inland costs (origin side)
- Trucking factory → port/airport
- Export customs handling, documentation fees
- Consolidation/warehousing if buying from multiple suppliers (see Shipping a Mixed Container from Yiwu ← 内链)
Common structure: if you buy FOB, most of this is inside the quoted price; if you buy EXW, it's all yours to add. Incoterms decide who pays what — and choosing the wrong one silently moves costs between lines.
3. International freight
- Sea FCL: flat per container → allocate across units by value or volume share
- Sea LCL / air: per CBM or per kg chargeable weight (the math: ← 内链 Sea vs Air vs Rail)
- Peak season surcharges, fuel adjustments — model at current +15% for safety on Q4 shipments
4. Destination charges
The layer DIY models forget most often:
- Terminal handling, devanning (LCL), port fees
- Customs brokerage / entry fees
- ISF filing (US), import declarations (UK/EU)
- Destination trucking port → your warehouse
- Demurrage/detention risk buffer if your side of the process might be slow
5. Duty & tariffs
- US: base duty + Section 301 (if applicable) + MPF + HMF — full stack: Import Tax from China to the US
- UK/EU: duty on CIF value + VAT on (CIF + duty) — reclaimable if VAT-registered: Import Duties China to UK
- Key discipline: use the dutiable base per your destination's rules (US: goods value; UK/EU: CIF), not a generic "shipment value"
6. VAT / import taxes
For UK/EU importers: real cash flow, reclaimable cost — include in cash planning, exclude from true unit economics if you'll reclaim. For US importers: no federal layer, but state use tax may apply — accountant territory.
7. Insurance
All-risk marine cargo cover: roughly 0.2–0.5% of shipment value. Skipping insurance to save 0.3% on a shipment where a single incident writes off 100% is not cost-saving; it's unpriced gambling.
8. Financing & fees
- Payment processing / wire fees
- Currency conversion spread (1–3% hidden in FX rates — on $50k, that's real money; negotiate or batch conversions)
- Interest/cost of capital for the 30–60 days your money sits in goods on the water
9. Shrinkage allowance
Quality rejects (your AQL level implies a defect rate — price it in), damaged units, customs exams, lost cartons. A 1–3% allowance depending on product fragility and supplier track record. Your inspection standard and your landed cost are the same conversation.
Worked Example: 1,000 Units to the US
| Line | Amount | Per unit |
|---|---|---|
| Product (FOB, incl. packaging) | $10,000 | $10.00 |
| Molding amortization | $1,500 | $1.50 |
| Origin consolidation & docs | $400 | $0.40 |
| Sea freight (LCL share) + insurance | $1,900 | $1.90 |
| Destination charges + brokerage | $850 | $0.85 |
| Duty (8%) + Section 301 (25%) | $3,300 | $3.30 |
| MPF + HMF | $48 | $0.05 |
| FX spread (1.5%) | $225 | $0.23 |
| Shrinkage allowance (2%) | $367 | $0.37 |
| Landed cost | $18,590 | $18.59 |
Factory quote was $10/unit. Real cost is $18.59 — 86% higher. Sell at $12.99 and you're paying customers $4.40 each for the privilege.
This is why we run landed-cost models before clients order — sometimes the product works at a different supplier tier, shipping mode, or volume; sometimes it doesn't work at all, and finding that out before the deposit beats finding out after.
Per-Unit Allocation: Where Models Cheat
When one container holds many SKUs, allocation matters:
- By value share: fine when products are similar in density
- By volume/CBM share: correct when freight dominates and products differ wildly in bulk (a mixed Yiwu container must be allocated this way — see our mixed-container guide)
- By weight: for air freight, chargeable weight governs — allocate accordingly
Allocating a container's cost evenly across units ("$2 per item") systematically subsidizes bulky cheap SKUs and penalizes dense valuable ones — hiding which products actually make money.
The Template Logic (Build It Once)
Any spreadsheet version of this needs:
- Input tabs: supplier quote, freight quote (current + peak), destination fees, duty stack by destination country
- Calculation tab: the formula above, per-unit outputs at your volume tier
- Scenario columns: minimum / expected / worst case (freight spike, 2% more rejects, FX move)
- Break-even outputs: landed cost → required margin price → compare to market price
If you want it pre-built with US and UK duty logic included, download our landed cost template — free in exchange for your email.
The Five Lies Spreadsheets Tell
- Static freight numbers — using last year's rates; freight moves seasonally and cyclically
- Ignoring the duty base rules — applying duty % to the wrong value (US vs UK/EU bases differ)
- Forgetting destination charges — the invisible 5–10%
- No shrinkage line — assuming 100% of shipped units sell
- Single-point estimates — no worst-case column, no awareness of which input the model is sensitive to (usually freight and duty)
FAQ
What's the difference between landed cost and COGS? Landed cost is everything to get goods into your warehouse, ready to sell. COGS adds fulfillment costs beyond that (marketplace fees, outbound shipping to customers). Margin math needs both.
How accurate can I get before ordering? Very — quotes are obtainable for every line in advance (freight quotes, duty lookups via HTS, broker fee schedules). The number is knowable to within a few percent before you pay a deposit. Not knowing it is a choice.
Does landed cost include customs exams/inspections? Random exams happen (X-ray, intensive) with fees and delays. Budget a small probability-weighted allowance if importing regularly — a few dollars per shipment amortized.
Should I use landed-cost software? For a few SKUs and steady lanes, a spreadsheet is honestly fine. Software earns its keep at scale (many SKUs, multiple lanes, frequent rate changes, ERP integration).
Bottom Line
Landed cost isn't an accounting ritual — it's the difference between a business and a charity with extra steps. Factory price + freight + duty + fees + shrinkage, per unit, before you commit money. Ten minutes of modeling against the formula above, every time, forever.
Want us to run the landed cost model on your next order? Send the quote — we'll tell you what it really costs →