Free tool
Your peak week is in December.
Your deadline is in October.
Amazon's Q4 2026 inbound cutoffs land up to 53 days before real demand peaks. Watch the clock, then work backwards: pick your peak week and get the dates your PO, factory, and freight have to hit.
—
days to Oct 21
inbound cutoff · minimal splits
—
days to Oct 28
inbound cutoff · optimized splits
—
days to your peak week
select below
The back-planner
Last season's category peaks (Helium 10 weekly search volume): decorations Nov 22 · advent calendars Nov 29 · electric blankets Dec 20.
Your dates, working backwards
Planning estimate, not gospel: it assumes stock should be live 14 days before your peak week to catch the ramp, and it does not model port congestion or Golden Week. Tighten the inputs to your own lanes.
What is the FBA inbound cutoff for Q4 2026?
Amazon's published Q4 2026 calendar sets October 21 as the inbound deadline for minimal shipment splits and October 28 for Amazon-optimized splits. Inventory arriving after those dates is not guaranteed to be available for Black Friday / Cyber Monday.
Why are there two deadlines — October 21 and October 28?
The minimal-split option (fewer destinations, but a per-unit placement fee) needs a week more internal transfer time, so its deadline lands earlier: October 21. If you split shipments across more destinations yourself (Amazon-optimized splits), you get until October 28. The cheaper inbound choice costs calendar.
What if my product peaks in December — one buy in October?
Not necessarily. Stock already sitting upstream in AWD (Amazon Warehousing & Distribution) keeps replenishing FBA after the cutoff, and merchant-fulfilled overflow can catch demand spikes. The countdown above tells you how many days of demand you are forecasting blind; AWD is how you shorten it.
The data behind this tool:Your Q4 peak week is not October — but your Amazon deadline is.
Leave with a sharper next move.
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