Total Landed Cost: What It Is and Why It Matters
When a procurement team evaluates suppliers, the conversation almost always starts with unit price. That is understandable — unit price is visible, comparable, and easy to put in a spreadsheet. The problem is that unit price often accounts for less than half of what an organisation actually pays to get goods into the hands of the people who need them.
Total landed cost (TLC) is the complete cost of acquiring a product from a supplier and delivering it to the point of use. It includes every dollar spent between the supplier's production line and your receiving dock — and sometimes well beyond that. Organisations that make sourcing decisions based on unit price alone routinely pick the wrong supplier.
What Goes Into Total Landed Cost
A complete TLC model captures costs in several categories, not all of which are obvious when reviewing a supplier quote.
Purchase price. The unit cost multiplied by the quantity ordered. This is the only number most teams compare.
Transportation. Freight charges from the supplier to your facility, including any trans-shipment or consolidation costs. For international suppliers, this includes ocean or air freight, origin-country trucking, and destination-country delivery.
Duties and tariffs. Import duties, customs fees, and applicable tariffs. These vary by product classification (HS code), country of origin, and trade agreements in force. They can add 5–25% to purchase price depending on the category.
Insurance. Cargo insurance covering loss or damage in transit. Often overlooked for low-value shipments; significant for high-value or fragile goods.
Storage and handling. Warehousing costs at origin (if the supplier requires a minimum run) and at destination (if lead times require you to hold safety stock). Longer supply chains require more inventory, which ties up capital and warehouse space.
Risk costs. The cost of supply disruption, quality failures, and lead-time variability. A low-cost supplier with high reject rates or unreliable delivery introduces costs that rarely appear in a quote but show up in production delays, rework, and emergency freight.
Administrative costs. The cost of managing the supplier relationship — more complex cross-border procurement requires more time from your team, more documentation, and potentially customs broker fees.
Comparing Two Suppliers: A Worked Example
Consider a public-sector facilities team sourcing a specialised component used in building maintenance. Supplier A is offshore and quotes $18 per unit. Supplier B is domestic and quotes $27 per unit. On unit price alone, Supplier A appears to save $9 per unit — a 33% reduction. On an order of 5,000 units, that looks like $45,000 in savings.
Running a full TLC model tells a different story. Supplier A requires ocean freight ($3.20/unit), import duties at 8% of purchase price ($1.44/unit), customs broker fees ($0.30/unit), and cargo insurance ($0.20/unit). Lead time is 14 weeks, requiring the team to hold 8 additional weeks of safety stock at a carrying cost of $1.10/unit per year, or about $0.85/unit on an annualised basis. Historical quality data shows a 4% reject rate, adding $0.72/unit in rework and disposal. Total landed cost for Supplier A: approximately $25.71/unit.
Supplier B, domestic, has no freight delay, no duties, a 2-week lead time, a 0.5% reject rate, and minimal safety stock requirements. Adding $0.40/unit for local delivery, $0.20/unit in insurance, and $0.15/unit in rework, the TLC for Supplier B is approximately $27.75/unit.
The gap has narrowed from $9.00/unit to $2.04/unit — a 77% reduction in the apparent saving. At 5,000 units, the real difference is about $10,200, not $45,000. Whether that gap justifies the longer lead time, the import complexity, and the quality risk is now a genuine strategic question rather than an obvious answer.
How to Build Your TLC Model
A practical TLC model does not need to be complicated. A spreadsheet with rows for each cost category and columns for each supplier candidate will do the job for most sourcing decisions. The key discipline is requiring every cost category to be populated for every supplier — even if the entry is zero. This prevents the common mistake of simply omitting costs that are harder to quantify.
For categories where you lack historical data, use estimates flagged as assumptions. A TLC model with acknowledged assumptions is far more useful than a unit-price comparison that ignores real costs. Once you have run a few TLC analyses, you will build an internal database of freight rates, duty rates by commodity, and reject rate benchmarks that makes future analyses faster and more accurate.
XNM Consulting helps procurement teams build rigorous sourcing frameworks that account for total cost, not just unit price. Visit our Procurement, Sourcing & Contract Management page to learn more.