Deciding whether to package your products in-house or outsource to a contract packager is one of the biggest operational decisions you'll make—and it directly impacts your bottom line. The upfront capital, labor costs, and hidden expenses can swing dramatically depending on your volume, product type, and growth trajectory. This guide breaks down the real financial differences so you can make an informed choice.
The True Cost of In-House Packaging
In-house packaging requires significant fixed investments that don't scale with your sales. You'll need machinery (filling, capping, labeling, sealing equipment), dedicated floor space, compliance infrastructure, and trained staff. A basic semi-automated packing line typically costs $50,000–$250,000 in equipment alone, depending on your product category and speed requirements.
Beyond equipment, factor in:
- Labor: Full-time staff ($30,000–$50,000 annually per operator, often requiring 2–3 people for shift coverage)
- Facility costs: Leased or owned warehouse space suitable for packaging ($10–$25 per square foot annually)
- Maintenance & downtime: Equipment repairs and replacements (typically 10–15% of machinery value annually)
- Quality control & regulatory compliance: Testing, documentation, and audits ($5,000–$20,000 yearly for food, pharma, or cosmetics)
- Materials storage: Boxes, fillers, labels, tape inventory takes up space and working capital
Break-even volume for in-house packaging typically occurs around 500,000–1 million units annually, depending on product complexity. If you're shipping fewer units, your per-unit cost is likely 20–40% higher than outsourcing.
Contract Packaging: Variable Costs That Scale
Co-packing shifts packaging from fixed costs to variable costs. You pay per unit, with rates typically ranging from $0.15 to $2.00 per unit depending on product complexity, packaging style, and order volume. A food bar might cost $0.25–$0.50 per unit; a multi-component beauty kit might run $1.50–$3.00.
Key advantages:
- No equipment investment: You avoid the $50,000–$250,000 machinery outlay entirely
- Flexible capacity: Scale production up or down month-to-month without fixed overhead
- Minimal labor overhead: No dedicated staff, training, or benefits to manage
- Included expertise: Co-packers handle compliance, quality checks, and regulatory documentation
- Faster time-to-market: Established facilities can start packaging within 2–4 weeks versus 6–12 months for in-house setup
The tradeoff: your per-unit cost is higher than in-house at high volumes, but you avoid the financial risk of equipment sitting idle during slow months.
Direct Cost Comparison: Real Numbers
Let's compare packaging 100,000 units annually:
In-House Approach:
- Equipment depreciation (10-year life): $15,000
- Labor (1.5 FTE): $50,000
- Facility: $3,000
- Maintenance & materials: $8,000
- Total annual cost: $76,000
- Per-unit cost: $0.76
Contract Packaging Approach:
- Co-packing at $0.55 per unit: $55,000
- Per-unit cost: $0.55
At 100,000 units, contract packaging is 28% cheaper. However, at 500,000 units:
In-House (500,000 units):
- Equipment depreciation: $15,000
- Labor (2 FTE): $100,000
- Facility: $5,000
- Maintenance & materials: $15,000
- Total: $135,000 / 500,000 = $0.27 per unit
Contract Packaging (500,000 units):
- At $0.40 per unit (volume discount): $200,000
- Per-unit cost: $0.40
In-house becomes cost-effective around 350,000–400,000 units annually for standard packaging, though this varies significantly by industry.
Hidden Costs to Consider
Before committing to either model, account for these often-overlooked expenses:
- Setup & changeover fees: Co-packers typically charge $500–$3,000 per production run to set up machinery, adjust labels, and validate quality
- Minimum order quantities (MOQs): Most contract packagers require 10,000–50,000 unit minimums per run
- Shelf-stable inventory: In-house requires holding finished goods; co-packing ties up cash in transit inventory
- Quality rejections: Non-compliance costs more if discovered by retailers or customers post-purchase
- Contract terms: Cancellation fees, price escalation clauses, and exclusivity restrictions vary widely
How to Choose
Choose in-house packaging if: You have consistent volumes above 300,000 units annually, products with stable demand, and capital available for equipment investment.
Choose contract packaging if: You're growing, have seasonal demand, want to minimize upfront investment, or operate in regulated industries where compliance infrastructure matters.
If you're unsure, start with a pilot run through a co-packer. Mercoly lets you compare quotes from trusted contract packaging providers in one place, so you can test costs and quality before making a long-term commitment.
Frequently Asked Questions
Q: What's the typical setup fee for a new co-packing run? Setup fees range from $500–$3,000 and cover line adjustments, label registration, and initial quality validation. This gets amortized across your order, so larger runs (50,000+ units) reduce per-unit setup impact significantly.
Q: Can I negotiate lower per-unit rates with a contract packager? Yes. Volume commitments and longer contracts (12–24 months) typically unlock 10–20% discounts. Consolidating multiple SKUs into one production run also improves rates.
Q: How do I verify a co-packer's quality and compliance before contracting? Request third-party certifications (ISO 9001, SQF, NSF), audit their facility in person, and ask for customer references. Always run a small pilot batch and conduct your own quality inspection before full-scale production.
Ready to compare co-packing quotes? Start your search on Mercoly to find providers that match your volume, timeline, and budget.