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Q4 2026: Prime Big Deal Days 6–7 Oct. Peak storage 1 Oct. Peak fulfillment 15 Oct–14 Jan. Recalculate break-even ACOS before you raise bids.

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Updates Brief Fees

Urgent US Effective 1 Oct 2026

Q4 US storage fees step up 1 Oct — trade guide cites $2.40 / $1.40 per cu ft; confirm live

By Mansoor, Amazon advertising specialist ·

Who it hits

Every US FBA catalog with cubic feet on hand for the October snapshot. Anyone still holding dogs “for Q4 volume.” PBDD deal submitters who modeled August storage rates.

What to do this week

Before 1 Oct: pull storage monitor / Fee Preview, remove or liquidate dead children, and recalculate contribution with peak storage in the model. Do not raise PBDD bids on ASINs that fail after the storage step.

Operator take

This is the usual yearly step, not a surprise tax. What fails is modeling PBDD (6–7 Oct) on off-peak storage. Peak fulfillment starts 15 Oct — a second clock. See the two-clocks brief and PBDD.

Before the snapshot

  1. Open storage monitor. Sort by cubic feet × days of cover.
  2. Remove / liquidate units that will not clear contribution after peak storage.
  3. Rebuild break-even ACOS with peak storage in the fee stack.
  4. Isolate event campaigns with a kill date — do not “optimize” into aged + peak storage.

Storage $/cu ft cited from trade guidance; always confirm live in Seller Central. Aged inventory surcharge can stack on peak storage. No ACOS guarantees on this page.

FAQ

Are $2.40 / $1.40 official?

They are trade-guide figures for the usual Q4 step. Use Fee Preview / the logged-in fee schedule as the bid input.

Is peak fulfillment the same day?

No. Storage from 1 Oct; peak fulfillment from 15 Oct 2026 through 14 Jan 2027 (confirm live).

Source: US Q4 peak storage from 1 Oct — $/cu ft also cited in trade guides; confirm live Fee Preview / storage fee schedule (official help often login-walled) · Confirm live numbers in Seller Central. This desk is the method, not a rate card.

Stuck on this change?

I will walk the public listing, say whether this change is leaking spend, and what week one would be.

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Comments

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Related

Brief · 25 Sep 2026 · Client issue: peak fulfillment from 15 Oct cuts break-even before PBDD spend Brief · 25 Sep 2026 · Client issue: low-inventory fee on the advertised FNSKU — not the parent Brief · 25 Sep 2026 · Client issue: returns processing fees quietly erase contribution on advertised heroes
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