What Exactly Changed on January 1, 2026

For over a decade, Amazon's FBA prep service worked like a safety net. Mislabel something? Amazon would fix it. Packaging wasn't quite right? They'd redo it. Items arrived dinged up? They'd rewrap them — for a fee, but it got handled.

That safety net is gone. As of January 1, 2026, Amazon discontinued all FBA prep and labelling services in the US — FNSKU barcode labelling, poly-bagging, bubble wrapping, bundling, boxing, kitting, and general compliance prep. This applies to every inbound channel: standard FBA, Amazon Warehousing & Distribution (AWD), Amazon Global Logistics (AGL), Amazon SEND, and the Supply Chain Portal.

The framing from Amazon is that this is about network efficiency, not punishment. With a mature ecosystem of third-party prep providers now available, Amazon is redirecting its fulfilment centres to focus purely on rapid inventory movement and delivery speed — not item-level prep work that was never core to their warehouse design in the first place.

Whatever the framing, the practical reality is the same for every seller: the full responsibility for prep — time, cost, and logistics — has moved from Amazon to you.

The New Inbound Defect Fee Structure

Here's where this stops being an inconvenience and starts being a genuine financial risk. Amazon didn't just stop doing prep — it dramatically raised the penalty for getting prep wrong.

Do the maths on that standard-size jump and it's roughly a 1,600% increase on the low end. A single shipment of 500 units with a labelling defect can now cost $300 or more in penalty fees alone — before you've even accounted for the delay in getting that inventory live and selling.

Who Is Hit Hardest by This Change

Not every seller feels this equally. The impact depends heavily on your business model, product complexity, and how much you previously leaned on Amazon's prep service as a safety net.

Building an In-House Prep Workflow

For sellers choosing to handle prep themselves, the bar for "good enough" has risen sharply. Labels need to scan on the first try. Packaging has to be genuinely intact. Fragile items need real cushioning, not an afterthought. Liquids need to be properly sealed. Miss any of it, and the shipment gets rejected — sent back at your expense, or disposed of with a fee attached.

What in-house prep actually requires

Map every active SKU against Amazon's current category-specific prep requirements — apparel, fragile, hazmat, and standard items all carry different standards, and Amazon updates these requirements more often than most sellers realise. A listing that was fully compliant 18 months ago is not guaranteed to be compliant today.

Beyond the mapping, you need genuine operational capacity: dedicated space, the right packaging materials (poly bags, bubble wrap, void fill, boxes in the correct dimensions), a label printer capable of producing scannable FNSKU barcodes at volume, and — critically — a quality control step before any carton ships. One missed QC check on a 500-unit shipment is the difference between a smooth check-in and a four-figure defect fee.

When to Use a Third-Party Prep Centre Instead

For a large share of sellers in 2026, the maths now favours outsourcing prep entirely. Professional prep centres typically charge $0.50 to $0.80 per unit — a fraction of what a single defect fee incident would cost, and they bring quality control infrastructure that's genuinely hard to replicate at small scale.

Labelling and Packaging Requirements You Now Own

The core compliance requirements haven't actually changed — every unit still needs a scannable FNSKU label, appropriate protective packaging, and adherence to category-specific prep standards. What changed is who is responsible for making sure it happens, and how severely mistakes are penalised.

FNSKU labelling

Every unit needs its own scannable Fulfilment Network Stock Keeping Unit barcode. This used to be something Amazon could apply on arrival for non-compliant inventory. Now, a label that doesn't scan on the first attempt is treated the same as no label at all.

Protective packaging by category

Poly-bagging for loose items and anything with small parts, bubble wrap or void fill for fragile products, proper sealing for liquids, and category-specific safety labelling (such as suffocation warnings on polybags) — all of this now needs to happen before the carton leaves your hands, not after it arrives at the fulfilment centre.

Bundling and kitting

If you sell multi-unit sets, the bundling into a single sellable unit must be completed before shipment. Amazon will no longer assemble bundles from individually shipped components on your behalf.

Your Readiness Checklist

Whether you're already compliant or just starting to adapt, run through this list before your next shipment plan.

Frequently Asked Questions