Build a prep estimate from the actual SKU work, then separate receiving, storage and shipment costs.
Start with a SKU work matrix
List each SKU, the units arriving, the required barcode, the packaging supplied and the finished prep specification. Note bundles, fragile products, expiry information and any items that need inspection. A label-only rate cannot describe a job that also needs sorting, protective packaging or rework.
Separate the cost components
Rick Cargo’s supplied FBA card lists FNSKU labeling at $0.45 per label for 1-999 units, $0.35 at 1,000-4,999, $0.32 at 5,000-9,999 and $0.28 at 10,000+. Polybagging has its own volume tiers; FBA bundling is $0.75 per bundle with at least two items. Materials, storage, postage and taxes are separate unless included in the quote.
The FBA minimum is $100 only in an active prep month. Prep, receiving and related labor count toward it, and only a shortfall is charged. For example, $80 of qualifying work produces a $20 minimum adjustment; $120 does not. Storage or postage does not satisfy that minimum.
Confirm instructions before increasing volume
Use a representative sample to agree packaging, label placement, count reconciliation and the treatment of damaged or unidentified items. Record the approved instructions so a larger run uses the same definition of completed work. Agree who can approve exceptions and how extra labor will be priced.
Track separate milestones
Receiving completion, prep completion, carrier pickup and Amazon check-in are different events. The standard inbound dock-to-stock SLA does not promise that Amazon will receive the shipment within the same period. Build a replenishment plan with time for the prep scope, carrier movement and marketplace receiving.
Check Amazon’s current requirements
Amazon’s packaging, prep and labeling guidance explains the requirements sellers must check before sending inventory. Use the current Seller Central instructions for your product and shipment; do not assume every SKU uses the same barcode or packaging.
Reference: Amazon: FBA prep, packaging and labeling (checked October 1, 2026).