How to Compare Manufacturer Quotes: Landed Cost per Good Unit

Three quotes arrive. Each uses a different price basis, a different minimum order, different payment terms, and different exclusions. The lowest number on the page is rarely the lowest cost of the product in your warehouse.

This guide walks through a full worked example using a fictional hardware startup, Northline, comparing three real-looking quotes for an aluminum laptop stand. Target landed cost is $17.00 or less. Launch is 3,000 units, with a year-one forecast of 12,000. All companies and numbers are illustrative. Freight and duty figures are illustrative as of September 2026. Real duty depends on product classification, origin, and current trade rules, which change often. Confirm with a licensed customs broker.

Step 1: Put every quote on the same basis

Incoterms say where the seller's cost and risk stop and yours start. A price means nothing until you know the term.

For a cross-border truck pickup, ask for FCA at the seller's dock rather than EXW. Under EXW, export clearance is your job, which is hard to do from another country. FOB is meant for sea freight.

Northline's three quotes:

• Quorvan Works: $11.40 FOB Shenzhen
• Arvena Mfg.: $13.90 EXW Monterrey (Arvena agreed in writing to handle export clearance, which makes it FCA in practice)
• Halvik Fab.: $19.80 DDP to Northline's US warehouse

The headline gap between lowest and highest is $8.40.

Step 2: Add freight, duty, and inspection

The real gap has shrunk to $5.10, and the cheapest quote is no longer the cheapest.

Step 3: Add a yield allowance

Ask every candidate: is the price per unit started or per good unit, and who pays for scrap? All three of Northline's quotes priced each unit started, with scrap billable to Northline. That is common in job-shop machining, and it is why yield belongs in the math.

The allowance is: price ÷ first-pass yield − price. Apply it to the factory price only, because freight, duty, and inspection are paid on good units shipped.

If a quote is truly per good unit, drop this line for that supplier.

Step 4: Amortize tooling and NRE at two volumes

Non-recurring engineering (NRE) covers tooling, fixtures, programming, and trial runs. Spread it over launch volume and again over forecast volume.

The $11.40 quote lands at $18.08. The $13.90 quote lands at $15.88, the only one under target at forecast volume.

No quote hits $17.00 at 3,000 units with tooling fully loaded. Northline chose to treat NRE as a launch investment, judge running landed cost against the target, and track the fully loaded number separately. That is a legitimate choice as long as you write it down.

Step 5: Check cash exposure, not just unit cost

A great manufacturer you cannot afford to pay upfront is not an option this year. Northline set a knockout: no more than $40,000 out the door before the first inspected unit.

Quorvan fails the cash knockout unless its inspection happens before the balance is paid. Arvena ties most of the order to approving real parts. Halvik asks for the least cash of all, which makes it expensive as a primary and cheap to keep warm as a backup.

A 50 percent deposit is not automatically unfair. A factory buying aluminum for a pre-revenue company is taking credit risk. Ask what the deposit covers, and negotiate what the balance waits for.

Step 6: Run a sensitivity check

Change one input at a time and see which one could flip the decision.

Arvena stays under target across the yield and volume range. Only duty pushes it over. That makes the duty question worth more than any price negotiation. Settle it with a customs broker before you choose.

Arvena's $0.00 duty depends on things worth checking, as of September 2026:

• Origin, not address. Duty-free treatment under USMCA applies only if the product qualifies under the rules of origin, backed by a certification of origin. Being made in Mexico is not enough on its own. The importer carries the liability if the claim is wrong.
• Metal-specific duties. Aluminum products can face separate duties that a trade agreement does not remove. Rates change often.
• Tooling can be dutiable. Money paid to an overseas supplier for tooling, or tooling you send them, can commonly be added to customs value. If Quorvan's $18,500 NRE were dutiable at 25 percent, that adds about $0.39 per unit at 12,000.

The same logic for formulated products

Rainwell, a fictional skincare brand, compared two compounders for a 30 mL serum:

Oskaline saves $0.45 per unit and ties up about $25,900 more cash, plus roughly 9,450 extra units, before the brand has a single customer review. A third candidate's $0.95 fill-only price could not be compared at all: it excluded compounding, bulk transport, and testing. An incomplete quote is not a cheap quote.

Checklist: before you compare any two quotes

Most of these are easier to get right in the request than to fix afterward. Our RFQ template guide shows what to ask for up front.

• Same Incoterm and named place, or the missing pieces added
• Per unit started or per good unit stated, and who pays for scrap
• Yield assumption stated by the manufacturer, not guessed by you
• Tooling and NRE on separate lines, with ownership in writing
• MOQ checked against every build phase, not only launch
• Payment terms converted to cash out before the first inspected unit
• Exclusions listed
• Duty basis confirmed with a licensed customs broker

Frequently asked questions

What is landed cost?

Landed cost is the total cost of getting a sellable unit into your warehouse: factory price, freight, insurance, duty, customs fees, inspection, and a share of tooling. For contract manufacturing, it should also include the cost of scrap when the price is per unit started.

Should I compare quotes at launch volume or forecast volume?

Both. Tooling spread over 3,000 units can change the ranking compared with 12,000 units. Show both, and write down which one you judge against.

How do I handle a quote that won't use my Incoterm?

Ask for the missing pieces separately: export clearance, freight to a named place, and what is excluded. Then build the comparison yourself on one basis.

Is DDP always the safest choice?

DDP moves freight and duty risk to the seller, which is simpler. You pay for that in the price, and you depend on the seller classifying and valuing the goods correctly. Compare the landed number, not the convenience.

Next steps

1. Use the free product cost calculator to see what yield loss and packaging do to your unit cost and margin.
2. Check what you still need before requesting quotes with the manufacturer readiness check.
3. The Contract Manufacturing Playbook includes the Quote & Landed Cost workbook sheet used for this example, with sensitivity rows and a cash-exposure view, plus RFQ templates that make quotes comparable from the start.