Outsourcing packaging to an international co-packer can slash your production costs and accelerate time-to-market, but hidden tariffs, shipping surcharges, and logistics complexity can quickly erode those savings. Understanding the real expenses—from customs brokerage to landed costs—separates smart sourcing decisions from costly mistakes. Here's what you need to know before signing with an overseas partner.
The True Cost of International Co-Packing
When you work with a co-packer abroad, the base manufacturing fee is only the beginning. You'll encounter import duties (typically 5–25% of product value, depending on HS code classification and origin country), freight forwarding fees ($500–$3,000+ per shipment), customs clearance ($300–$800 per entry), and potentially anti-dumping or countervailing duties if your category is restricted.
Most co-packers quote factory-gate pricing and expect you to arrange logistics separately. This means hiring a freight forwarder, obtaining certificates of origin, managing documentation, and factoring in air or sea transit times. Ocean freight from Asia to North America runs $2,000–$8,000 per 20-foot container; air freight costs 8–15 times more but arrives in days instead of weeks.
Selecting a Co-Packer with Realistic Logistics
Start by asking prospective partners for their delivered-cost transparency:
- Provide a complete landed-cost quote that includes manufacturing, inland freight to port, ocean/air shipping, insurance, customs duties, and final drayage
- Confirm certifications and compliance (FDA, ISO 9001, GMP) upfront—non-compliant product gets seized and destroys your timeline
- Request their export documentation process (packing lists, commercial invoices, country-of-origin marking) and ask if they handle pre-clearance with your country's authorities
- Check their buffer inventory policy to avoid demurrage charges (daily fees for containers left at the dock)
- Verify minimum order quantities (MOQs); many overseas co-packers require 10,000–50,000 units to justify setup costs, which directly impacts your per-unit freight efficiency
Common Hidden Costs to Budget For
Customs brokerage and compliance can add 3–7% to your landed cost if you're not careful. Your co-packer may not know the exact tariff classification for your finished product; hiring a customs broker ($200–$500 initial consultation) to classify it correctly saves you thousands in overpaid duties.
Quality control and returns are expensive at distance. Budget 2–5% of your first international order for factory audits, sample testing, and potential rework shipments. Remote quality checks via video or third-party inspectors typically cost $800–$2,000 per facility visit.
Currency fluctuation matters for long-term pricing. If you're working with a partner in Vietnam, Thailand, or Mexico, negotiate fixed pricing in your home currency for 12–24 months to avoid surprise increases.
Logistics Timelines You Should Expect
Ocean freight from Southeast Asia takes 3–4 weeks; from Mexico or Central America, 1–2 weeks. Add 5–10 business days for customs clearance in your destination country. From manufacturing start to shelf-ready product, plan for 8–12 weeks minimum on your first international co-packing run. Subsequent orders compress to 6–8 weeks once documentation and processes are dialed in.
If you need stock within 4 weeks, ocean freight is too slow. Your co-packer's air freight option will cost 3–4× more but is sometimes the only realistic choice for seasonal products or restocks.
Comparing Quotes and Verifying Reliability
Never compare co-packers on factory-gate price alone. Request three quotes with identical specifications, then ask each partner to itemize shipping, duties, and compliance costs separately. A co-packer quoting 20% lower than others but not addressing customs duties is likely being dishonest about total cost.
Check references from at least two current customers in your category. Ask them specifically: "What was your actual landed cost per unit vs. the quote?" and "How many shipments experienced delays or compliance issues?" These answers reveal whether a co-packer's logistics promises are real.
Platforms like Mercoly help you compare and vet trusted contract packaging and co-packing providers in one place, reducing the legwork of vetting multiple partners manually.
Frequently Asked Questions
Q: What's the difference between the co-packer's quote price and my actual cost per unit? A: Typically 25–45% higher due to tariffs, freight, customs, and insurance; exact markup depends on product classification, order volume, and destination country.
Q: Should I use the co-packer's preferred freight forwarder or hire my own? A: Hire your own for competitive rates and independent quality oversight, though this adds $500–$1,500 in broker fees; using theirs may be simpler for first orders but often costs 10–15% more.
Q: How can I reduce landed costs after the first order? A: Negotiate volume discounts, consolidate shipments to fill containers fully, lock currency rates, and consider nearshoring (Mexico, Central America) if lead times allow.
Start your sourcing journey by requesting detailed landed-cost quotes from at least three verified co-packers in your target region.