Flat-Rate vs Per-Day Inspection Pricing
The way your inspection provider charges affects more than your invoice — it shapes how you plan QC budgets, how many inspections you actually run, and how quickly you can scale your sourcing. Here is how the two main pricing models compare.
Two Pricing Models, Two Different Approaches
Flat-Rate Pricing
A single, all-inclusive price per man-day (or per inspection). The rate covers the inspector, travel to the factory, a detailed photo report, and all standard quality checks. No hidden fees, no post-inspection surcharges. Flat-rate firms like Tetra Inspection use this model to give importers complete cost predictability.
How it works:
- You book an inspection with your product specs and factory details
- The flat rate is quoted upfront — same price regardless of location or product type
- Inspector visits the factory, performs all checks, and submits a detailed report
- You pay exactly what was quoted — no add-ons, no invoice surprises
Per-Day Pricing
The traditional model used by large TIC corporations (testing, inspection, and certification firms) and some digital platforms. A base daily rate covers the inspector's time, but additional charges may apply for travel, rush scheduling, extra samples, specialized testing, or enhanced reporting.
How it works:
- You request a quote with your project scope and requirements
- Base rate is quoted, with potential add-ons listed separately
- Inspector performs the work — scope changes during the inspection may adjust the cost
- Final invoice may differ from the initial quote depending on actual scope
Strengths of Each Model
Neither model is universally better — each has strengths depending on your inspection needs, volume, and compliance requirements.
Flat-Rate Strengths
Predictable Budgeting
Know your exact inspection cost before you book. One price per man-day covers everything — no surprises on the invoice.
No Travel Surcharges
Inspector travel to the factory is included in the flat rate, even for factories outside major manufacturing hubs.
Detailed Reports Included
Photo-heavy reports with 100+ images, defect classification, and pass/fail recommendations are standard — not an add-on.
No Minimum Commitment
Book one inspection or one hundred. Pay-as-you-go with no annual contracts, minimum order volumes, or setup fees.
Per-Day Strengths
Enterprise Flexibility
Custom contract terms, dedicated account teams, and scope adjustments mid-project for complex, multi-phase programs.
Accredited Lab Testing
Large TIC firms bundle lab testing, certification, and inspections under a single contract — useful for compliance-heavy industries.
Global Regulatory Expertise
Firms operating in 100+ countries bring deep knowledge of local regulations, import requirements, and certification standards.
Multi-Service Contracts
Combine inspections, audits, lab testing, and certification under one vendor agreement for simplified procurement.
Total Cost Examples
The quoted rate is only part of the picture. Here is what real-world inspection costs look like under each model.
| Scenario | Flat-Rate | Per-Day | Notes |
|---|---|---|---|
| Single Pre-Shipment Inspection | $268–$348 all-inclusive | $289–$400+ base rate, plus potential travel and reporting fees | For a standard one-day inspection at a factory in Guangdong, China. |
| 10 Inspections per Month (Multi-Supplier) | $2,680–$3,480 total (volume discount often available) | $3,200–$5,000+ depending on locations and add-ons | Spread across 6 suppliers in China and Vietnam. Flat-rate pricing scales linearly with no hidden multipliers. |
| Factory Audit + Lab Certification Bundle | $268–$600 for the audit (lab testing quoted separately by lab partner) | $1,500–$3,000+ bundled project rate | When you need both a factory audit and accredited lab certification, a TIC firm's bundled pricing can be more convenient. |
Single Pre-Shipment Inspection
- Flat-Rate
- $268–$348 all-inclusive
- Per-Day
- $289–$400+ base rate, plus potential travel and reporting fees
For a standard one-day inspection at a factory in Guangdong, China.
10 Inspections per Month (Multi-Supplier)
- Flat-Rate
- $2,680–$3,480 total (volume discount often available)
- Per-Day
- $3,200–$5,000+ depending on locations and add-ons
Spread across 6 suppliers in China and Vietnam. Flat-rate pricing scales linearly with no hidden multipliers.
Factory Audit + Lab Certification Bundle
- Flat-Rate
- $268–$600 for the audit (lab testing quoted separately by lab partner)
- Per-Day
- $1,500–$3,000+ bundled project rate
When you need both a factory audit and accredited lab certification, a TIC firm's bundled pricing can be more convenient.
Hidden Costs to Watch For
The advertised inspection rate rarely tells the full story. Many providers list a competitive base rate but add charges that increase the final cost by 20–40%. Before committing to a provider, ask about these common add-ons:
- Travel and accommodation surcharges for factories outside major cities
- Rush scheduling premiums for inspections booked within 48 hours
- Extra fees per additional SKU or product variant inspected
- Charges for photo-heavy or detailed reports (vs basic summaries)
- Minimum order requirements that force you to pay for unused capacity
- Currency conversion or international payment processing fees
- Re-inspection fees when the first inspection identifies issues
- Annual subscription or platform access fees
With flat-rate pricing, most of these are included in the base rate. Always ask for a total-cost breakdown before comparing providers.
Which Model Fits Your Business?
The right pricing model depends on your inspection volume, compliance needs, and how many countries you source from.
Amazon FBA Sellers
High-frequency inspections with FBA-specific checklists. Predictable per-inspection costs help maintain margins on tight product economics.
First-Time Importers
No minimum commitment, pay-as-you-go pricing, and consultative support. Start with one inspection and scale as your sourcing grows.
Mid-Market Brands (10–50 SKUs)
Custom SOPs per product line, supplier analytics, and volume discounts. The flat-rate model keeps QC costs predictable as you scale.
Enterprise with Regulatory Compliance
Complex programs needing accredited lab testing, regulatory certification, and global compliance audits benefit from a TIC firm — often alongside a flat-rate partner for operational QC.
Single-Region Sourcing (China Only)
Both flat-rate specialists and regional agencies serve China well. Choose based on report quality, scheduling speed, and whether you need analytics and trend tracking.
Frequently Asked Questions
What is flat-rate inspection pricing?
Flat-rate inspection pricing means you pay a single, all-inclusive price per man-day (or per inspection) regardless of factory location, product type, or order size. The price covers the inspector, travel, reporting, and all standard checks. There are no hidden fees or post-inspection surcharges. Flat-rate firms like Tetra Inspection use this model to give importers complete cost predictability.
What is per-day inspection pricing?
Per-day (or project-based) pricing is the traditional model used by large TIC corporations and some regional agencies. The base rate covers the inspector's time, but additional charges may apply for travel, rush scheduling, extra samples, specialized testing, or detailed reporting. The final invoice can exceed the quoted rate depending on scope changes during the inspection.
Which pricing model is cheaper?
It depends on your situation. For straightforward product inspections with predictable scope, flat-rate pricing is almost always cheaper because there are no add-on charges. For complex projects requiring specialized equipment, accredited lab testing, or multi-day audits, per-day pricing from a TIC firm may offer more flexibility. The key question is not which rate looks lower on paper, but what your total cost will be after all fees are included.
Can I switch from per-day to flat-rate inspection?
Yes. Many brands start with per-day providers and switch to flat-rate specialists as their inspection volume grows and they want more cost predictability. The transition is straightforward — you provide your product specs and quality requirements, and the flat-rate firm builds custom checklists for your program. There are typically no contracts or minimum commitments with flat-rate providers like Tetra Inspection.
How does Tetra Inspection price its services?
Tetra Inspection uses a flat-rate pricing model. You pay a single per-man-day rate that includes the inspector, travel to the factory, a detailed report with 100+ photos, and all standard quality checks. No hidden fees, no surcharges, no minimum order requirements. Volume discounts are available through our credit-based subscription plans. See our pricing page for current rates.
What hidden costs should I watch for with inspection pricing?
Common hidden costs in inspection pricing include: travel and accommodation surcharges for remote factories, rush scheduling premiums, extra charges per additional sample or SKU, fees for detailed or photo-heavy reports, minimum order requirements, currency conversion fees, and post-inspection charges for re-inspections when issues are found. With flat-rate pricing, most of these are included in the base rate.
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