Any Amazon Q4 checklist that starts in September starts late — and as of September 7, three 2026 gates have already closed: the $50 early-bird discount on Prime Big Deal Days deals expired August 5, that event’s AWD inbound cutoff passed September 2, and the Black Friday early-bird discount expired September 5. The next gate is tomorrow — September 8, when Prime Big Deal Days deal submissions close entirely.
This guide is the execution plan: what to do inside each window, in order. Every date and fee below is quoted from Amazon’s own Seller Central announcement, not a third-party summary. For the events themselves, see the companion Amazon sale dates 2026 calendar — that page answers when, this one what to do by then.
Where the Q4 2026 calendar stands today
Every gate below is a published date, and none waits on Amazon confirming the Prime Big Deal Days or Black Friday event dates — still unannounced as of 2026-09-07.
| Gate | Date (2026) | Status on Sep 7 | What it decides |
|---|---|---|---|
| Early-bird deal submission — Big Deal Days | August 5 | Closed 33 days ago | $50/deal discount |
| AWD inbound — Big Deal Days | September 2 | Closed 5 days ago | AWD stock for October replenishment |
| Early-bird deal submission — BFCM | September 5 | Closed 2 days ago | $50/deal discount |
| Deal submissions close — Big Deal Days | September 8 | Tomorrow | Whether you are in the event at all |
| FBA minimal splits — Big Deal Days | September 9 | 2 days | Arrival cutoff, fewer destinations |
| FBA Amazon-optimized splits — Big Deal Days | September 16 | 9 days | Arrival cutoff, one extra week |
| AWD inbound — Black Friday / Cyber Monday | October 14 | 37 days | AWD stock for the November block |
| Holiday peak fulfillment fees begin | October 15 | 38 days | Per-unit cost to January 14, 2027 |
| Deal submissions close — BFCM | October 20 | 43 days | Whether you are in the event at all |
| FBA minimal splits — BFCM | October 21 | 44 days | Arrival cutoff, fewer destinations |
| FBA Amazon-optimized splits — BFCM | October 28 | 51 days | Arrival cutoff, one extra week |
| AWD off-peak storage rate ends | October 31 | 54 days | Storage rate for auto-replenishment |
Source: Amazon’s own announcement, “Holiday 2026: Same fees, same eligibility, earlier deadlines”, posted by News_Amazon in the Seller Central Seller Forums on July 7, 2026 and readable without a login (data checked 2026-09-07). Inbound dates are when “your inventory arrives at our facilities” for Prime-badge eligibility; they vary by marketplace, so confirm each in your own account.
AWD eligibility note (revised September 7, 2026): Amazon’s announcement recommends AWD for sellers “expecting higher holiday volume” and says nothing about size eligibility. Industry reports describe AWD narrowing its US intake by unit size and weight, but no threshold or effective date is confirmable on an Amazon-hosted page, so this guide states none — check your ASINs in Seller Central.
The three clocks, and why they start in this order
Most Q4 planning treats “the deadline” as one date — the day inventory lands. In 2026 there are three, starting roughly six weeks apart.
The promotion clock started first. Amazon: “The deal submission window is open from: July 8 to September 8 for Prime Big Deal Days” and “July 8 to October 20 for Black Friday Week and Cyber Monday.” The early-bird discount inside it has expired at both events; the window itself has not. It turns on which ASINs you promote and at what price, not on having stock.
The inventory clock started September 2 and runs through September 16 for Big Deal Days. Three cutoffs per event, because the deadline depends on your shipment-splits option: minimal splits — fewer destinations, simpler freight — costs seven days of runway.
The cost clock starts October 15, when peak fulfillment fees begin and run to January 14, 2027. Units arriving on the October 28 deadline sell at peak rates all season, so peak fees belong in the margin model before you price a deal.
Phase 1 — through August 5: decide promotions, place POs
This is the only phase where the numbers are yours to choose; everything after is logistics. It has closed — both early-bird discounts are gone. What survives is the submission itself, live until September 8 and October 20, at the undiscounted fee.
- Pick the ASINs you will promote and get the deals in before the window closes. Amazon’s seller promotions page states the bar: “You’ll need a Professional selling plan and an overall rating of at least four stars to create deals” (coupons need 3.5 stars; checked 2026-09-07).
- Choose the promotion type on cost shape, not name. The coupons vs deals vs price discounts comparison puts them side by side.
- Place manufacturing POs for anything still moving by ocean. This next figure is our own arithmetic rather than an Amazon number: assuming a 45-to-60-day ocean transit, the only round a container can still realistically make from September 7 is October 28 — fast end of that band, goods already finished. Chinese factories also close for Golden Week from October 1.
- Set the forecast those POs are sized against. Reorder-point modelling against real lead times is what restock software exists for.
Phase 2 — August 6 to September 16: inbound for Big Deal Days
- Submit Big Deal Days deals before the September 8 close. The $50 discount is gone, the deal is not: a submission today costs $50 more than one on August 5 and gets the same placement.
- Book freight to land two weeks before the stated arrival deadline. “Arrived” is not “available,” and Amazon says as much: with its teams focused on “receiving holiday shipments in September and October,” sellers “may see lower capacity limits during this time.”
- Pick the shipment-splits option deliberately — September 9 for minimal splits, September 16 for Amazon-optimized, which Amazon notes “most sellers select.” Choosing minimal moves your own deadline a week earlier.
- Prep and label to spec before the boxes ship. Box-content errors surface as receiving delays when there is no slack; FBA prep software covers the tooling.
Phase 3 — September 17 to October 28: listings, ads, and the BFCM inbound
- Freeze listing changes. Title, image, and A+ edits during a traffic spike make any conversion move impossible to attribute.
- Submit BFCM deals before the October 20 close — the last date any BFCM deal can be entered.
- Stage ad budgets before the spike. Mid-event bid changes compound with deal pricing; the PPC playbook covers staging into one.
- Re-model every deal price against peak fulfillment fees, not off-peak ones — the per-unit math is in the FBA fees and profit guide and the 2026 fee changes guide.
- Hit October 14 / 21 / 28 for AWD on AWD-eligible ASINs, minimal splits, and optimized splits.
- Set the pre-event price floor so no mid-event change is needed.
Phase 4 — October 29 onward: run it, don’t rebuild it
After the last inbound deadline the levers left are pricing within your floor, ad pacing, and stockout response. Check sell-through against forecast daily, and pull the deal on any ASIN that will sell out early.
Phase 5 — January: recover what peak cost you
Peak volume is when FBA loses, damages, and mis-values the most units, and claim windows are short. Reconcile in January, not “after Q4 settles down.”
Pull the FBA reimbursements report and audit it against your own sourcing costs. Managed services do this for a commission; self-service tools charge a flat fee and leave the filing to you. ReimburseOps is in the second group — flat $19 a month, no commission, reading a Seller Central CSV export and flagging under-reimbursed, unmatched, and inconsistently valued records; its free tier caps records shown and gates CSV export, and it never files claims for you (data checked 2026-07-27). The reimbursement services comparison weighs flat fees against commissions.
What a Q4 2026 deal actually costs
Amazon’s public seller pages say only that “There may also be costs associated with your deal.” Its Seller Central announcement is specific: fees for Best Deals, Lightning Deals, and Prime Exclusive Price Discounts are “the same as Prime Day” — “Upfront fee: $100 per promotion, plus Variable fee: 1.5% of promotional sales (capped at $5,000).”
Three consequences:
- The variable fee caps at about $333,000 of promotional sales per deal (1.5% × $333,333 ≈ $5,000) — below that it scales, above it incremental volume is free.
- The early-bird discount was $50 per deal, not per event. Amazon: “Submit your Prime Big Deal Days deals by August 5 and Black Friday Week and Cyber Monday deals by September 5 to save $50 on the upfront promotion fee.” Both dates have passed; a deal submitted now pays the full $100.
- Peak fulfillment adds roughly $0.32 per unit, with a surcharge on top. Amazon: peak fees “will have the same per unit increase over non-peak rates as last year, averaging $0.32 per unit,” and “the 3.5% fuel and logistics-related surcharge will apply on top of holiday peak fulfillment fees.” Its public Buy with Prime pricing page repeats both (checked 2026-09-07). On a 3,000-unit deal the increment alone is about $960.
One line is easy to miss: October deal prices are “excluded from the 30-day and 60-day lookback window and won’t affect the maximum deal price required for Black Friday Week and Cyber Monday deals” — discounting hard in October does not cap November. The authoritative fee is the one on your own deal creation screen.
Common mistakes on the Q4 calendar
- Tracking only the inbound clock. Watching only for “the FBA cutoff” means paying full price on every deal — and, past September 8, missing the Big Deal Days window.
- Copying a third-party Q4 calendar without checking its dates. SupplyKick’s 2026 seller calendar still says “Amazon typically opens Prime Big Deal Days deal submissions in late August or early September” — the window in fact opened July 8 and closes September 8 (page checked 2026-09-07).
- Pricing deals off non-peak fulfillment fees. October 15 precedes every BFCM inbound deadline, and the 3.5% surcharge applies on top of the peak rate, not instead of it.
- Waiting for the event dates before acting. Amazon says only that “Prime Big Deal Days returns at the same time as last year,” and as of September 7 no 2026 dates were published. Every gate that constrains you already has one.
- Deferring reimbursement reconciliation. Claim windows expire on their own schedule, indifferent to December.
Amazon Q4 checklist by phase (copy-paste)
Before August 5 (closed) — star ratings checked against the 4.0 deals and 3.5 coupons bars, Big Deal Days deals submitted at the $50 discount, promotion types chosen, POs placed, forecast documented.
August 6 – September 16
- Big Deal Days deals submitted before the September 8 window close
- Shipment-splits option chosen deliberately, one-week cost noted
- Freight booked to arrive two weeks before the stated deadline
- Prep, labelling, and box content verified before shipment creation
September 17 – October 28
- Listing edits frozen
- BFCM deals submitted before the October 20 window close
- Ad budgets and bids staged, stop-loss rule written down
- Deal prices re-modelled against peak fees plus the 3.5% surcharge
- October 14 / 21 / 28 inbound deadlines hit per program
- Pre-event price floor set
After the events
- Slow movers flagged before AWD off-peak storage ends October 31
- January: FBA reimbursements report pulled and audited
- Actual lead times logged for next year’s back-plan
Frequently Asked Questions
What is the Amazon Q4 2026 inbound deadline?
There are six, not one. Prime Big Deal Days: September 2 (AWD), September 9 (FBA, minimal shipment splits), September 16 (FBA, Amazon-optimized splits). Black Friday Week and Cyber Monday: October 14, October 21, October 28. These are Amazon’s own published arrival dates, from its Seller Central announcement of July 7, 2026 (data checked 2026-09-07); they vary by marketplace.
When do Amazon Q4 2026 deal submissions close?
September 8, 2026 for Prime Big Deal Days and October 20, 2026 for Black Friday Week and Cyber Monday — Amazon’s announcement states the window “is open from: July 8 to September 8” and “July 8 to October 20” respectively. The early-bird cutoffs inside them, August 5 and September 5, each worth $50 off the upfront fee, have passed.
How much does an Amazon Q4 deal cost in 2026?
Per Amazon’s Seller Central announcement, fees for Best Deals, Lightning Deals, and Prime Exclusive Price Discounts are “the same as Prime Day”: $100 upfront per promotion plus 1.5% of promotional sales, capped at $5,000 — so the variable part stops growing past roughly $333,000. Data checked 2026-09-07.
When do Amazon holiday peak fulfillment fees start in 2026?
October 15, 2026 through January 14, 2027, across FBA, Remote Fulfillment with FBA, Multi-Channel Fulfillment, and Buy with Prime — Amazon calls these “the same dates as last year.” The increase over non-peak rates averages $0.32 per unit, with a 3.5% fuel and logistics-related surcharge on top; Amazon’s public Buy with Prime pricing page carries the same window and surcharge (data checked 2026-09-07). Peak starts before every Black Friday inbound deadline.
Can I plan Q4 without knowing the Prime Big Deal Days dates?
Yes. As of 2026-09-07 Amazon had published no 2026 event dates, saying only that Prime Big Deal Days “returns at the same time as last year.” But every gate that constrains you — submission open and close, inbound arrival, peak fee start — has a published date. Plan against those, and re-anchor forecasts the day the dates land.
Conclusion
The Amazon Q4 checklist that matters in 2026 is not a list of events but a list of gates, and on September 7 three have already shut. The promotion clock closes September 8 and October 20; the inventory clock runs out September 9 and 16; the cost clock starts October 15 and runs to January 14. None waits for an event announcement. Work the phases in order, confirm each date in your own Seller Central, and keep the sale dates calendar open alongside it. For the non-calendar workstreams, the holiday readiness guide at AMZFinder is a useful cross-check.