Every international purchase contract requires a decision that most buyers make without fully understanding it: who pays for freight, who arranges insurance, and who bears the risk if something goes wrong during the ocean voyage.
That decision comes down to choosing between FOB and CIF.
These two Incoterms appear on supplier quotes and purchase orders more than any others in international trade. Getting them wrong does not just cause confusion. It can mean unexpected costs, insurance gaps, overpaid customs duties, and disputes that are expensive to resolve. This guide explains both clearly.
What Are Incoterms?
Incoterms, short for International Commercial Terms, are standardised trade rules published by the International Chamber of Commerce (ICC). First introduced in 1936, they define the responsibilities, costs, and risks of buyers and sellers in cross-border transactions. The current version is Incoterms 2020, effective from January 1, 2020.
Incoterms specifically define three things: where risk transfers from seller to buyer, who pays for freight and insurance, and who handles export and import customs clearance. There are 11 Incoterms in the 2020 edition. FOB and CIF are the two most commonly used for ocean freight.
What Is FOB (Free On Board)?
FOB applies only to sea and inland waterway transport. Under FOB, the seller's responsibility ends once the goods are loaded onto the vessel at the named port of shipment. The seller handles packing, inland transport to the port, export customs clearance, and loading. From that point, all cost and risk passes to the buyer.
Seller's responsibilities under FOB:
- Export customs clearance and documentation
- Inland transport to the named port of shipment
- Loading goods onto the vessel
Buyer's responsibilities under FOB:
- Ocean freight from origin port to destination
- Cargo insurance (optional but strongly recommended)
- Import customs clearance and duties
- All costs from the port of origin onward
The named port is critical. FOB Shanghai means risk transfers to the buyer when goods are loaded in Shanghai. Any damage or loss during the ocean voyage is the buyer's responsibility and the buyer's insurance claim.
What Is CIF (Cost, Insurance, and Freight)?
CIF also applies only to sea and inland waterway transport. Under CIF, the seller pays for ocean freight and arranges minimum cargo insurance to the named destination port. However, despite covering freight and insurance costs to the destination, risk still transfers to the buyer at the same point as FOB, when the goods are loaded onto the vessel at the port of shipment.
This is the most commonly misunderstood aspect of CIF. The seller pays for freight and insurance to the destination, but the buyer bears the risk of loss during the ocean crossing.
Seller's responsibilities under CIF:
- Export customs clearance
- Ocean freight to the named destination port
- Minimum cargo insurance (Institute Cargo Clauses C)
- Loading goods onto the vessel
Buyer's responsibilities under CIF:
- Bears risk from the moment goods are loaded at origin
- Unloading at the destination port
- Import customs clearance and duties
- Any insurance beyond the minimum arranged by seller
FOB vs CIF: Side-by-Side Comparison
The most important line in that table: risk transfers at the same point under both terms. FOB and CIF differ on who pays for freight and who arranges insurance. That is the only meaningful structural difference.
The Insurance Problem With CIF
CIF requires the seller to arrange cargo insurance, but only at the minimum level under Incoterms 2020, which is Institute Cargo Clauses C. This is the most basic form of marine cargo insurance available. It covers only named major perils: fire, explosion, vessel sinking, stranding, and collision. It does not cover theft, water damage, or rough handling damage, which are among the most common causes of cargo loss.
Under FOB, the buyer arranges their own policy and can choose Institute Cargo Clauses A, the most comprehensive coverage available, which covers all risks except those specifically excluded.
For high-value or fragile goods, this gap matters significantly. Many buyers discover it only after a loss occurs and the CIF insurance claim is denied for the type of damage that caused it.
FOB vs CIF and US Customs Duty: A Critical Difference
There is a dimension of this comparison that applies specifically to US importers and that most guides do not explain clearly.
The United States calculates import duties on FOB value, meaning the value of goods at the port of origin, excluding international freight and insurance. Most other major importing countries, including the UK and all EU member states, calculate duties on CIF value, which includes freight and insurance.
The United States is the primary country using FOB for customs valuation. CIF results in higher duty because the customs value includes shipping and insurance. For a $1,000 shipment with $200 in shipping and 10% duty, CIF-based duty is $120 while FOB-based duty is $100.
For US importers buying on CIF terms, the customs broker must deduct the freight and insurance cost from the CIF invoice price before declaring the value to CBP. Using the full CIF price as the customs value results in overpaying duties. US customs value requires FOB basis, meaning freight and insurance are excluded from the declared value. Using a CIF price for a US declaration produces an incorrect customs value.
This is a real compliance issue. US importers buying on FOB terms do not have this problem since the FOB price is already the correct basis for US customs valuation.
Who Should Use FOB vs CIF?
FOB is better for most experienced US importers. When you control freight, you can choose your own forwarder and negotiate rates directly, select comprehensive insurance coverage, maintain full shipment visibility, and avoid the freight markup suppliers often embed in CIF quotes. For businesses importing regularly, the cost savings compound meaningfully over time.
CIF is practical in specific situations:
- You are new to importing and do not yet have freight forwarding relationships
- You are importing a small LCL (less than container load) shipment where direct freight negotiation has limited value
- Your supplier genuinely has competitive freight rates that you have verified against market quotes
- You are testing a new supplier and want minimal operational involvement on the first order
The key test: get a quote from your own freight forwarder on the same route and compare to the seller's CIF price. If the CIF price is higher, shift to FOB.
Real-World Example: $100,000 Electronics Shipment from China
CIF Los Angeles:
- Supplier quote (freight and minimum insurance included): $108,000
- Customs value declared to CBP (freight deducted): $100,000
- Import duty at 5%: $5,000
- Total landed cost: approximately $113,000
FOB Shenzhen:
- Supplier price: $100,000
- Freight arranged directly by buyer: approximately $4,800
- Comprehensive marine insurance (Clauses A): approximately $350
- Customs value declared to CBP: $100,000
- Import duty at 5%: $5,000
- Total landed cost: approximately $110,150
Saving under FOB: approximately $2,850 per shipment, plus significantly better insurance coverage. For a business doing $1 million in annual imports, this difference can reach $25,000 to $30,000 per year.
A Note on FOB and CIF for Air Freight
Both FOB and CIF apply only to ocean freight and inland waterway transport. They should not be used for air shipments. For air freight, the correct Incoterm under Incoterms 2020 is FCA (Free Carrier). For air freight with insurance included, the equivalent is CIP (Carriage and Insurance Paid To).
FOB continues to be used in practice for containerised sea freight even though FCA is technically more appropriate under Incoterms 2020 for containerised shipments. If you are shipping by air, use FCA regardless of what your supplier quotes.
Frequently Asked Questions About FOB vs CIF
What is the main difference between FOB and CIF? The main difference is who pays for ocean freight and arranges cargo insurance. Under FOB, the buyer pays for freight and arranges their own insurance. Under CIF, the seller pays for freight and arranges minimum insurance to the destination port. Risk transfers at the same point under both terms.
Does CIF mean the seller is responsible if goods are damaged in transit? No. Risk transfers to the buyer when goods are loaded onto the vessel at the port of origin under both FOB and CIF. If goods are damaged during the ocean voyage under CIF, the buyer bears the loss and must claim against the minimum insurance policy arranged by the seller.
How does FOB vs CIF affect US customs duty? The US calculates duties on FOB value, excluding freight and insurance. If you import on CIF terms, your customs broker must deduct freight and insurance from the invoice price before declaring the value to CBP. Using the full CIF price as the customs value overstates the dutiable value.
Which is better for a US importer, FOB or CIF? FOB is generally better for experienced US importers because it gives full control over freight costs, carrier selection, and insurance coverage. CIF is more practical for new importers or small shipments where direct freight negotiation is not feasible.
What insurance does the seller provide under CIF? Minimum coverage under Institute Cargo Clauses C, which covers only major named perils such as fire, explosion, and sinking. It does not cover theft, water damage, or handling damage. Buyers who need comprehensive coverage should arrange their own policy under Clauses A, which is possible under FOB terms.
Can FOB and CIF be used for air shipments? No. Both apply only to ocean freight. For air shipments, use FCA (Free Carrier) instead of FOB, and CIP (Carriage and Insurance Paid To) instead of CIF, as specified in Incoterms 2020.
