What FBA Prep Costs Per Unit in 2026: Reading the Quote Line by Line

It usually arrives as a one-page PDF. Logo across the top, a short paragraph about turnaround, then a table of about ten rows and three columns: service, unit of measure, rate. Your eye goes to the row that says per unit, because that is the number you asked for. The other nine rows are going to bill you too.

The rest of the table carries the assumptions. Every line stands for a guess: how the cartons show up, what is already printed on the unit, how long the stock sits between receiving and outbound, who covers the rework when Amazon changes prep guidance on an ASIN. Two centers can quote the same product in good faith and land far apart, because they guessed differently. Reading the quote row by row is how you find out which guesses were made about you.

The middle column deserves as much attention as the right one. Per unit, per carton, per pallet, per hour, per month: the unit of measure is what turns a rate into a bill, and it is the column sellers skim. If handing prep over is still an open question, that one runs on your own hourly rate rather than on anybody's rate card, and the in-house version of this table is worth building before you shop.

What January 2026 took off the table

On January 1, 2026, Amazon stopped offering prep and item labeling services for FBA in the US. Labeling, poly bagging, bubble wrapping, bundling, boxing: all of it came off the menu, on the stated reasoning that most sellers already handle their own packaging. Shipments created before that date were still covered; after it, the work has to be finished before the freight leaves your side.

For pricing, the interesting part is what that removed. Amazon's old prep charges were unpleasant, but they worked as a ceiling: a shipment that went out unfinished cost you a known amount. The ceiling is gone. What a non-compliant shipment costs now depends on where it gets caught, and the answers run from a surcharge to freight coming back at your expense.

You can read the change in the quotes themselves. Rows that used to be rare are now standard: rework and relabeling, disposal of units that fail inspection, sometimes an inspection line that used to sit inside base prep. None of that is padding. The cost of the fallback moved off Amazon's invoice onto somebody's, and the somebody is you either way. Which makes a decent opening question for any quote: when prep guidance changes mid-shipment, who pays for the rework, and at what rate?

The rows you should expect to see

Names differ between centers, and some fold three jobs into one row. The work underneath is the same everywhere. Read the table below with a real rate card next to it (pull up /prices if you do not have one open).

Line	How it gets billed	Usually inside the base rate	Almost always its own row
Receiving	Per carton, pallet or hour	Case-packed cartons, one SKU each, packing list attached	Container unload, mixed freight, missing paperwork
Base prep	Per unit	Look-over inspection, FNSKU, closing the box	Anything the ASIN's prep guidance adds
FNSKU label	Per unit, or inside the base	One label, one unit, one pass	Relabeling, sticker removal, second labels
Poly bag	Per unit plus materials	Bag, seal, suffocation warning	The bag itself, oversize bags, bagging after assembly
Protective wrap	Per unit plus materials	Nothing, in most quotes	Bubble, dunnage, individual boxing
Bundle or kit	Per component unit	Assembly and one bundle label	Inserts, sleeves, cards, count QA
Oversize and heavy	Separate tier or hourly	Nothing	Two-person handling, pallet building, team lift labels
Storage	Per pallet or cubic foot, monthly	A free window before outbound	Everything past it, stepping up with age
Outbound	Per carton, shipment or pallet	Carton labels and shipment closeout	Boxes, pallets, wrap, freight booking, extra destinations

Receiving

The row sellers forget to ask about, and the first place two quotes stop being comparable.

Receiving covers the truck: unloading it, counting cartons against your advance notice, checking for crush and water damage, opening enough to confirm the SKU mix, and telling you quickly when the count is wrong. That is the job when freight arrives the way it should. Everything else gets billed by the hour or by the unit, because nobody can estimate it in advance:

• Devanning a floor-loaded container
• Sorting cartons that hold four SKUs each
• A delivery that shows up with no packing list
• Pallets that come apart and go back together
• Reboxing freight that traveled badly

What moves this row is the unit of measure, not the rate. One carton holding two hundred units of a single SKU is a single receiving event. Twenty retail bags from twenty store runs are twenty. Case-packing by SKU is the cheapest change a wholesale buyer can make, and it belongs in the conversation with the supplier rather than the negotiation with the prep center. Arbitrage buyers should accept a per-unit receiving line and stop measuring it against a wholesale quote. It is a different service.

Base per-unit prep

This is the number on the pricing page, and it describes one very specific product: standard size, case-packed, one SKU per carton, retail packaging intact, ready to label, one label per unit. That product exists. Yours may not be it.

What the base usually buys:

• A look at each unit before prep, with damaged and mislabeled items pulled instead of shipped
• FNSKU application on units that need it
• Building and closing the outbound carton
• Counting, so the shipment plan matches what is in the box

What it does not buy: materials, and anything the ASIN's prep guidance in Seller Central adds on top. Those two exclusions are where most of the gap between quotes lives.

The base rate reacts to what you buy far more than to how you negotiate. Case-packed wholesale lands in the cheapest tier because the work repeats. Mixed-condition arbitrage carries a premium everywhere serious, because each unit gets handled and decided on individually. Before comparing two base rates, ask both centers which tier your SKU falls into using real dimensions and weight, not the category name. Our page on what prep costs lists the variables that decide which tier a SKU lands in.

FNSKU labeling

Amazon decides at the ASIN level whether a unit needs its own barcode and who applies it. That setting lives in the product's prep guidance inside Send to Amazon, and it varies between two products in the same category. Checking it per ASIN takes a minute. Assuming costs a rework line.

The row covers printing and applying one label per unit and covering the manufacturer barcode, so the receiving scanner finds exactly one code. The end of commingling moved a lot of resellers into that column who had never labeled a unit before. Billed separately almost every time: relabeling after a listing change, removing a retail price sticker or an old FNSKU, applying the label under the poly bag when guidance calls for it, and any second label placed by hand.

The way to shrink this row is to delete it. A supplier who prints the FNSKU onto the retail package during production removes it from every future invoice. If the ASIN does not require a unit label, do not pay for one out of habit. Placement matters too, since a label across a seam or over the existing barcode sends a unit back to the bench for a second pass. Getting it right on unit one is what a labeling service is being paid for.

Poly bagging

Whether a unit needs a bag at all, what opening width brings in the suffocation warning and how the code has to read through the film are set by Amazon's packaging requirements. Read them once in full rather than guessing per shipment.

The row buys labor: bagging, sealing, applying the warning where it is required, and confirming the code still scans. The plastic itself usually sits somewhere else, on a materials row with a markup over what the center pays, and that is the detail that surprises people. Ask what the markup is: a center buying standard sizes by the case can beat one with a lower prep rate and a heavy materials line, and none of that shows up in the per-unit column.

Fit is the other question. A center already stocking a few standard sizes runs faster than one sourcing a custom bag for you. Then check necessity, because plenty of units get bagged on a guess rather than on the guidance printed against the ASIN.

Protective packaging

Bubble wrap has two triggers and sellers usually remember one. Fragile items get wrapped because they break. Heavy or dense items get wrapped because they break other people's inventory in the same tote. Labor plus materials, always, and opaque bagging, individual boxing and corner protection are separate again. The saving sits upstream: a retail box that survives a drop test removes the row entirely.

Bundles, multipacks and kits

Bundles are the row most often misread, because centers bill per component, not per finished bundle. A four-piece set is four touches. That is arithmetic rather than a markup, and it is why bundle economics fall apart with depth.

The row covers assembly, securing the set so it behaves as one unit, the single bundle FNSKU and covering the component codes. Which steps apply depends on the kind of set, since multipacks, mixed bundles and kits each carry their own rules. Separate rows: inserts and printed cards, custom sleeves, components that arrive late and force a second assembly run, and the count verification that keeps a three-piece set from shipping with two.

Keep bundle depth low, since every added component multiplies through your whole order volume. Then ask whether the center will kit a batch once and hold the assembled units, so assembly gets paid for on a production run rather than on every replenishment.

Oversize and heavy handling

Past a certain size, prep stops being a per-unit task and becomes a two-person task, so it moves to its own tier or to hourly billing. Nothing about the base rate applies.

Amazon caps carton size and weight on inbound shipments, wants team lift labeling on heavy cartons, and refuses or surcharges cartons that miss those rules. The limits get revised, so check them against the shipment in front of you rather than against what you remember.

Cartonization is where the money is. Right-sizing the outbound box changes the handling charge, the freight cost and which inbound placement band Amazon puts you in. The same decision shows up on three separate invoices.

Storage past the free window

Most centers give a free window between receiving and outbound, on the assumption that stock moves through. Past that window, storage is billed monthly, either per pallet or per cubic foot, and the rate typically steps up as inventory ages.

Which of the two methods you get matters more than the rate. Pallet billing charges you for a full position whether the pallet is full or holding four cartons in the corner. Cubic-foot billing tracks what you actually occupy. If your SKUs are slow or your pallets are partial, the better headline rate on pallet billing loses badly.

The thing to settle is intent. Storage here turns into a penalty when six months of inventory lands in a facility priced for pass-through work. If you hold buffer stock on purpose, say so and have it priced that way instead of discovering it as an overage.

Outbound and freight

The last operational row covers building the shipment: packing cartons to plan, applying carton labels, recording box content, closing the shipment in Seller Central and handing freight to the carrier. Separate almost everywhere: boxes and dunnage, pallets and stretch wrap, freight booking. Watch for carrier surcharges passed through with a margin added rather than at cost.

Amazon-side details attach here too, and they belong in the comparison even though they land on a different invoice. First, box content: cartons that turn up without a declaration Amazon can read draw a per-unit manual processing fee. Ask how the center files it and who eats the fee when a file gets rejected.

Second, placement. Amazon's own recommended split across several destinations carries no placement fee. Sending everything to one or two locations does, per unit. Whether the center will build several destination shipments at no extra per-shipment charge decides whether the free option is open to you at all. Ask it in exactly that form. Shipping for the first time? The new seller walkthrough takes the steps in order and says what each status means.

Setup, minimums and the rows that surface later

The first invoice matches the quote. The second is where a relationship reveals itself. Get these named while the quote is still a draft:

• Account setup and per-SKU onboarding, charged on top of per-unit prep
• A monthly portal or software access charge
• Minimum monthly billing, which quietly raises your effective per-unit rate in a slow month
• Materials at a markup over the center's cost
• Rework and label correction after a listing change
• Returns and removal order receiving, priced as its own workflow
• Disposal of units that fail inspection
• An annual escalator, plus auto-renewal with a notice window you have to diarize
• A shrinkage allowance capping what the center owes for lost inventory
• Offboarding charges if you move your stock elsewhere

None of these are tricks. A center that names all ten up front is easier to budget against than one whose quote fits on a postcard.

One request cuts through the lot: ask for a redacted sample invoice from a client who ships what you ship. A rate card shows what a center wants to charge. An invoice shows what it does charge. If nobody will produce one, that is information too.

Bringing two quotes to one number

Rate cards are not comparable. Landed cost on a real shipment is. Do this once and the decision stops being a judgment call:

1. Pick a shipment you actually sent, not a hypothetical average. Ideally an awkward one.
2. Write its facts down: SKU count, units per SKU, carton count, how the freight arrives, real dimensions and weight, prep guidance per ASIN, days the stock will sit, destinations Amazon wanted.
3. Send that identical page to both centers and ask for a total cost to move the shipment, not a per-unit rate. Use the same call to check who you are dealing with, since the pricing answer and the operational one arrive together.
4. Add the Amazon-side consequences each answer implies: placement fees for the split they support, manual processing if they will not do box content your way.
5. Divide by units. Now the two numbers describe the same work.
6. Run it again on your worst shipment. The winner flips more often than you would expect.

What usually happens is that the low base rate loses. A center with an attractive per-unit number that charges heavily to receive a pallet, marks up every bag and runs a short free storage window is not cheaper. It is differently expensive. We publish our rows with their units of measure so you can run that comparison against us.

Before you sign anything

Why does one center quote per unit and another per carton?

They are pricing different bottlenecks. A center handling case-packed wholesale can price by the unit, because receiving is cheap and predictable. A center taking mixed arbitrage freight prices receiving separately, since sorting a mixed pallet has nothing to do with how many units come off it. Comparing the per-unit numbers alone leaves out everything the second one bills before the units are counted.

Does a prep center's rate include Amazon's fees?

No, and it cannot. Referral fees, fulfillment fees, inbound placement, storage and surcharges are billed by Amazon against your seller account. A prep quote covers work done in a warehouse before the freight leaves. A good center will tell you which of its choices push your Amazon fees up or down: cartonization, split shipments, box content.

How does a monthly minimum change my real per-unit cost?

Divide the minimum by the units you shipped that month and add it to the prep rate. In a strong month it disappears. In a slow month, or the month after a supplier slips, it can be the largest single component of your cost per unit. Ask whether unused minimum rolls forward and whether it is waived during ramp-up. Both are negotiable more often than the rate is.

Is it cheaper to have my supplier do the prep?

On paper, often yes, especially for FNSKU printed during production. The cost to weigh against it is verification. A supplier prep error surfaces at an Amazon fulfillment center, thousands of units in, and gets corrected by shipping everything back. Plenty of sellers split it: labels and packaging at the source, inspection and shipment building at a domestic center.

What should FBA prep cost per unit in 2026?

Published ranges are useless, because they average case-packed wholesale against unit-by-unit arbitrage and standard size against oversize. Your number depends on how freight arrives, what the prep guidance requires and how long the stock sits. Which is why the exercise above is worth an hour.