When Amazon ended its in-house prep services on January 1, 2026, every FBA seller had to start paying someone else to handle the work — either internal staff or a third-party prep center. The question that came with that shift is the one buyers ask first and prep centers answer worst: how much does FBA prep actually cost? This is the per-unit breakdown, the volume tiers, the hidden fees, and the honest in-house-versus-outsourced math.
Amazon FBA prep typically costs $0.50 to $1.50 per unit all-in for a standard-sized item from a U.S.-based 3PL in 2026 — covering receiving, FNSKU labeling, poly bagging, inspection, and outbound freight to an Amazon fulfillment center. Oversized items run $1.50–$3.50/unit. Storage adds $15–$25 per pallet per month. Most prep centers carry a $200–$500 monthly minimum below ~1,000 units/month. At 3,000 units/month, outsourced prep typically costs $0.78/unit all-in versus $2.55/unit in-house.
How Much Does Amazon FBA Prep Cost Per Unit?
For a standard-sized item, expect to pay $0.50 to $1.50 per unit, all-in, when you outsource Amazon FBA prep to a U.S.-based 3PL in 2026. That covers receiving, inspection, FNSKU labeling, poly bagging or packaging, and the outbound shipment to an Amazon fulfillment center. Oversized items, bundles, and special prep — bubble wrapping, suffocation warnings, expiration date stickers, hazmat handling — push the number higher. Volume discounts, longer-term storage, and bundled inbound freight pull it down.
That's the headline. The reason a single number is so misleading is that prep pricing is not one fee — it's six. Sellers who ignore the breakdown end up paying 30 to 60 percent more than they expected once their first invoice lands. Here's what those six line items look like.
What You're Actually Paying For
A complete FBA prep quote in 2026 includes some combination of these line items. A clean quote lists each one separately. A bad quote hides three or four under "service fees" and surprises you on month two.
1. Receiving and intake. When your inbound shipment arrives at the prep center — a pallet from a domestic supplier or a 40-foot container from overseas — the warehouse unloads it, counts the units, scans SKUs into their warehouse management system, and inspects for damage. Typical pricing: $0.10 to $0.20 per unit, or $25 to $50 per pallet, or $300 to $500 per 40-foot container depending on whether they unload, palletize, or break down a floor-loaded container.
2. Short-term storage. Inventory sits at the prep center for some number of days before it ships to Amazon. Most prep centers offer free storage for 7 to 30 days and then charge a per-pallet or per-cubic-foot monthly fee. Typical pricing: $15 to $25 per pallet per month, or $0.45 to $0.75 per cubic foot per month. Low-velocity inventory that sits for 60+ days can quietly become more expensive than the prep itself.
3. FNSKU labeling. Every unit going into Amazon's network needs an FNSKU sticker that maps the physical product to the seller's specific listing. Typical pricing: $0.20 to $0.30 per unit as a standalone service, or rolled into the all-in prep rate.
4. Packaging and poly bagging. Many product categories — apparel, soft goods, anything with exposed graphics, multi-packs, items sold without manufacturer packaging — require a poly bag with a suffocation warning printed in the right size and font. Bubble wrap is required for fragile items. Bundles need a "Sold as Set" or "Do Not Separate" sticker. Typical pricing: $0.20 to $0.50 per unit for poly bagging, $0.30 to $0.75 per unit for bubble wrap, $0.50 to $1.00 per bundle for bundle assembly.
5. Inspection and compliance check. A final pass to confirm the unit matches the FNSKU, the packaging is sealed, the suffocation warning is correct, no Amazon-prohibited content is visible, and the box-level requirements are met before the shipment leaves. Often included in the all-in rate at quality-focused prep centers; charged separately at lower-end providers. Typical pricing: $0.05 to $0.10 per unit when itemized.
6. Outbound shipment to Amazon. The packed boxes get FBA shipment labels and ship via UPS, FedEx, or freight to the destination Amazon fulfillment center. Most prep centers either rate-shop your shipment across their negotiated carrier accounts and pass the cost through (sometimes with a 5 to 10 percent markup) or include freight in a bundled rate. Typical pricing: $8 to $25 per master box for parcel, $0.40 to $0.80 per pound for partial-pallet LTL freight, and $300 to $700 per pallet for full-pallet shipments to FBA. Geography matters here — a prep center close to Amazon's fulfillment network pays less to ship and so do you.
Add it up. For a small standard item arriving in bulk, getting an FNSKU, a poly bag, a quick inspection, and a parcel ride to FBA, you land in the $0.55 to $1.20 per unit range, all-in, before storage. For an oversized item with bubble wrap and a bundle assembly, you're at $1.50 to $3.50 per unit.
How FBA Prep Pricing Scales by Volume
Prep centers price tier breaks differently, but the shape of the curve is consistent. Lower volume costs more per unit because the fixed operational cost per shipment doesn't go down. Higher volume drops the per-unit rate because it absorbs that fixed cost across thousands of units.
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Under 500 units/month
$1.00 to $1.50 per unit, all-in. Often carries a $200 to $500 monthly minimum.
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500 to 2,000 units/month
$0.75 to $1.10 per unit. Minimums typically fall away at this tier.
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2,000 to 10,000 units/month
$0.55 to $0.85 per unit. Better receiving rates and faster turnaround commitments.
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10,000+ units/month
$0.45 to $0.70 per unit. Negotiable terms on inbound freight, storage, and turnaround SLAs.
The minimum threshold catches a lot of new sellers off guard. A $400-per-month minimum on a seller doing 200 units sells through to $2.00 per unit before any other cost. Always ask about minimums before signing anything.
What Makes Your FBA Prep Quote Go Up
Five factors push pricing above the standard ranges. Sellers who understand them in advance can either redesign their packaging to avoid the surcharge or negotiate flat-rate pricing if the situation is unavoidable.
Anything over Amazon's standard size tier (18 x 14 x 8 inches, 20 lbs) requires manual handling. Expect a 30 to 80 percent uplift over the standard per-unit rate.
A 3-pack is three labels, a poly bag, and assembly time. A 12-piece holiday gift kit is closer to fulfillment work than prep work. Negotiate a fixed per-bundle rate upfront for any high-volume bundle SKU.
Bubble wrap, double-walled boxes, custom-cut foam, non-standard suffocation labels, expiration date stickers, lot tracking — every one adds material and time. Itemized at most prep centers; sometimes hidden under "specialty prep."
Lithium batteries, aerosols, alcohol-based products, ORM-D and full hazmat items require certified handlers and limited carriers. Not every prep center accepts hazmat. The ones that do typically charge a 50 to 150 percent surcharge.
The fifth driver is timing. Standard prep turnaround is 24 to 48 hours after receiving. If your inventory is six weeks late and you need it on the FBA shelf in 18 hours, expect a rush fee — typically a 50 percent surcharge or a flat per-shipment fee in the $100 to $300 range.
In-House FBA Prep vs Outsourcing: The Real Math
This is the comparison most cost articles avoid because the answer makes someone uncomfortable. The actual numbers, run honestly, look like this for a seller doing 3,000 units per month.
In-house prep (3,000 units/month, run from a small flex space)
- Hourly labor: 1 worker at 25 hours/week prepping, $20/hour fully loaded — $2,000/month
- Flex space rent and utilities (1,500 sq ft warehouse-grade) — $2,000/month
- Packaging materials (poly bags, bubble wrap, labels, tape) — $400/month
- Equipment depreciation (label printer, packing tables, scanner) — $150/month
- Carrier accounts and shipping software — $100/month
- Owner/operator time on management and exceptions (10 hrs/week at $75/hr) — $3,000/month
Total: ~$7,650/month, or $2.55 per unit. That excludes the cost of getting it wrong: rejected shipments, account health hits, restock delays, and the opportunity cost of the founder running a packing line instead of growing the business.
Outsourced prep (3,000 units/month, mid-tier 3PL)
- All-in prep rate at $0.75/unit — $2,250/month
- Storage (4 pallets, 30-day turn) — $80/month
- Outbound freight to FBA (parcel, blended) — $1,800/month (paid in either model)
- Onboarding and management overhead — minimal once running
Total: ~$2,330/month for prep + storage, or $0.78 per unit.
Outbound freight to Amazon is a wash between the two models — somebody is paying it either way. The real comparison is prep + storage + labor + space + management overhead, and outsourced wins by roughly $5,300 per month in this example. The break-even point where in-house starts to win is below 200 to 300 units per month, where the prep center's minimums hurt more than the labor savings help.
For a deeper version of this same calculation across all the line items most operators forget — including return handling, dead stock carrying cost, and the management tax — see the Hidden Costs of In-House Fulfillment guide.
Hidden FBA Prep Fees That Show Up on Month Two
The advertised per-unit rate is rarely the actual cost. These are the line items that show up on month-two invoices and surprise the operator who didn't read the contract closely enough.
- Account setup fees. $100 to $500 one-time. Some 3PLs waive this on annual contracts.
- SKU onboarding fees. $5 to $25 per new SKU. Adds up fast for private-label sellers with hundreds of variations.
- Receiving overage fees. If a shipment arrives larger than what you forecasted, some prep centers charge a per-unit overage rate at 1.5 to 2× the standard intake fee.
- Long-term storage fees. After 60 to 90 days, many prep centers either double their storage rate or charge a per-cubic-foot surcharge. Slow movers get expensive.
- Label correction fees. If your inbound shipment has incorrect or missing FNSKU information, expect a $0.10 to $0.30 per-unit relabel fee.
- Return-to-sender fees. When Amazon rejects a shipment and sends it back, the prep center charges to receive, inspect, and either restock or repackage. Typically $0.30 to $0.60 per unit on top of any return shipping.
- Account exit fees. Some contracts charge a flat fee to close out and transfer inventory. Read the cancellation clause before signing.
The fix for all of these is the same: ask for a redacted sample monthly invoice from an existing customer of similar volume before signing anything. A good prep partner will walk you through the line items. A bad one will deflect.
FBA Prep Pricing After Amazon Ended In-House Prep
Before January 1, 2026, Amazon's own prep service charged sellers between $0.30 and $1.20 per unit depending on the prep type — poly bagging and labeling sat in roughly the same range a third-party prep center charges today. The pricing isn't dramatically different. What changed is who absorbs the operational risk.
When Amazon ran prep, a poly bag that came out crooked was Amazon's problem. An FNSKU mismatch was Amazon's problem. After January 1, 2026, every defect is the seller's problem — either they did it themselves and shipped it bad, or they paid a 3PL to do it and need to verify quality before signing the contract.
That's why the rejection-rate number matters more than the per-unit price. A $0.60-per-unit prep rate at a center with a 5 percent rejection rate is more expensive than a $0.85-per-unit rate at a center with a near-zero rejection rate, once you add in return freight, account health penalties, lost sales velocity, and items that are no longer eligible for reimbursement under Amazon's 2026 reimbursement policy. The full picture of why Amazon ended FBA prep — and how the de minimis change compounds the problem — is covered in this article.
How to Compare FBA Prep Quotes Apples-to-Apples
When you're comparing two or three prep centers, asking for a single per-unit number guarantees you'll get back numbers that aren't comparable. Ask for these instead.
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Itemized pricing
Receiving, storage, FNSKU labeling, poly bag, bubble wrap, bundle assembly, inspection, outbound freight — each broken out. Reject any quote that won't itemize.
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Sample invoice
A redacted month-end invoice from a similar-volume customer. Verify the line items in the quote match what actually appears on bills.
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Rejection rate
What percentage of their outbound FBA shipments were rejected by Amazon in the last 12 months? Anything over 1 percent is a red flag.
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Turnaround guarantee
Standard turn from receiving to outbound shipment, in writing. Bonus if there's a financial remedy when they miss it.
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Minimum monthly fee
Is there one? When does it apply? When does it go away?
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Long-term storage policy
When does the rate change? By how much?
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Forecast variance handling
What happens if your shipment arrives 20 percent larger than forecast? 50 percent? Twice the size?
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Carrier rate-shopping
Do they rate-shop across multiple carriers per shipment, or do they ship every order on one carrier? The answer affects your blended outbound rate by 10 to 25 percent.
A prep center that answers all of these clearly and in writing is one you can probably trust with your inventory. One that gets vague on three or four is going to get vague on the invoice.
Frequently Asked Questions
A typical all-in rate from a U.S.-based 3PL is $0.50 to $1.50 per unit for a standard-sized item, including receiving, FNSKU labeling, poly bagging, inspection, and the outbound shipment to an Amazon fulfillment center. Oversized items, bundles, and specialty prep cost more.
Below roughly 200 to 300 units per month, in-house can be cheaper if the operator is already in a space with no incremental rent. Above that volume, outsourcing almost always wins once you include labor, space, packaging materials, equipment, and management time. At 3,000 units/month, outsourced prep typically saves $4,000 to $6,000 per month versus running it internally.
Receiving the inbound shipment, counting and inspecting units, applying FNSKU labels, poly bagging or repackaging to Amazon's specifications, performing a final compliance check, and shipping the prepped inventory to the correct Amazon fulfillment center. Storage and outbound freight are typically separate line items.
Most prep centers serving sellers below 1,000 units/month carry a monthly minimum in the $200 to $500 range. The minimum usually disappears once monthly volume crosses a tier — commonly 1,000 or 2,000 units. Always ask for the minimum in writing before signing.
Typically $15 to $25 per pallet per month, or $0.45 to $0.75 per cubic foot per month. Most prep centers offer 7 to 30 days of free storage between receiving and the outbound shipment to Amazon. Long-term storage beyond 60 days often carries a surcharge.
Account setup fees, per-SKU onboarding fees, receiving overage fees, long-term storage surcharges, label correction fees, return-to-sender fees from Amazon rejections, and account exit fees. Ask for a redacted sample invoice from a current customer of similar volume to see what actually shows up.
Three levers move the number meaningfully. Consolidate inbound shipments so receiving and freight costs drop. Negotiate volume tier pricing with a guaranteed monthly volume. Redesign packaging to remove special-prep requirements where possible — avoid items that need bubble wrap, design products that ship in their own retail packaging, and use bundle SKUs that arrive pre-bundled from the manufacturer.
Oversized items — anything over Amazon's standard size tier of 18 x 14 x 8 inches and 20 lbs — typically run $1.50 to $3.50 per unit all-in, including bubble wrap or double-walled boxing if required. The 30 to 80 percent uplift over standard pricing reflects manual handling, larger pallet positions, and slower per-hour throughput on the prep line.
The cheapest advertised per-unit rate is rarely the cheapest in total. Quotes that look 30% cheaper than the rest usually exclude receiving, FNSKU labeling, returns processing, or long-term storage — and those line items reappear on month two. Compare quotes on total monthly cost for a representative volume rather than the headline rate. A $0.55-per-unit rate with $300 in hidden monthly fees is more expensive than a $0.75-per-unit rate with no minimums for a 1,000-unit-per-month seller.
Standard turnaround at a well-run prep center is 24 to 48 hours from the moment inventory is received and counted. Rush turnaround under 24 hours is usually available with a 50% surcharge or a flat rush fee in the $100 to $300 range per shipment. During Q4 peak, standard turnaround often slips to 3 to 5 days unless the prep center has an SLA in writing.
Below roughly 200 to 300 units per month, in-house can be cheaper if the operator is already in a space with no incremental rent. Above that volume, outsourcing almost always wins once labor, space, packaging materials, equipment depreciation, and management time are included. At 3,000 units per month, outsourced prep typically lands at $0.78 per unit all-in versus $2.55 per unit in-house — a $5,000+ monthly difference, before counting the cost of FBA rejections, restock delays, and founder time.
The best FBA prep center for a small seller has no monthly minimum or a low one ($200 or below), itemized pricing on receiving / labeling / poly bagging / outbound freight, a stated FBA rejection rate, and a single point of contact rather than a ticket queue. A regional prep center within 1 to 2 days of an Amazon fulfillment center usually beats a large national network on receiving speed and total cost for sellers under 5,000 units/month.
FBA prep centers near Amazon fulfillment hubs ship inbound for less. The major hub clusters are Southern California (Los Angeles / San Bernardino / Ontario), the Mid-South (Memphis, eastern Tennessee, northern Mississippi), the Mid-Atlantic (Pennsylvania, New Jersey, Delaware), and the Southeast (Atlanta and the Carolinas). Sellers shipping to the East Coast benefit from a prep center in NJ, PA, the Carolinas, GA, VA, or eastern TN; sellers shipping to the West Coast benefit from one in Southern California, Nevada, or Arizona.
Need a prep partner that gives you itemized pricing in writing?
Simple Distribution is a 3PL and Amazon FBA prep provider based in Selmer, Tennessee. 17 years in fulfillment. 99.5% order accuracy. 24 to 48 hour prep turnaround. Geographic shipping advantage to Amazon's southeastern fulfillment network.