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You can run the best Amazon advertising campaign of the year, update every listing detail, and price your products perfectly. None of it matters if shoppers hit "Add to Cart" and see "Currently unavailable."
Inventory planning decides whether you capitalize on demand or watch competitors take your sales. Amazon's major shopping windows (Prime Day, Prime Big Deal Days, Black Friday, Cyber Monday, and the full Q4 stretch) require sellers to move inventory weeks before the traffic arrives. Miss the receiving window and you're out of stock when conversion rates peak.
This calendar covers the dates and deadlines Amazon sellers need for 2026. Some dates are confirmed. Others are still estimates based on Amazon's historical patterns. We'll tell you which is which.
Amazon has not announced official 2026 Prime Day or Prime Big Deal Days dates yet. This guide uses historical event timing to help sellers plan ahead. We'll update this page when Amazon confirms official dates.
| Event or Season | 2026 Date / Window | Status | Start Planning By | FBA Send-In Target |
|---|---|---|---|---|
| Spring holidays (St. Patrick's, Easter) | Mar 1 – Apr 20 | Confirmed | January 1 | Mid-January |
| Mother's Day | May 10 | Confirmed | March 15 | Late March |
| Memorial Day | May 25 | Confirmed | April 1 | Mid-April |
| Father's Day | June 21 | Confirmed | May 1 | Early June |
| Prime Day | Mid-July (estimated) | TBD by Amazon | May 1 | Early June |
| Independence Day | July 4 | Confirmed | May 15 | Mid-June |
| Back to School | Jul 15 – Sep 10 | Estimated | June 1 | Late June |
| Labor Day | September 7 | Confirmed | July 15 | Late July |
| Prime Big Deal Days | Early-to-mid October (estimated) | TBD by Amazon | August 1 | Early September |
| Q4 holiday season | Oct 1 – Dec 31 | Estimated | August 15 | Early September |
| Halloween | October 31 | Confirmed | September 1 | Mid-September |
| Black Friday | November 27 | Confirmed | October 1 | Early November |
| Cyber Monday | November 30 | Confirmed | October 1 | Early November |
| Christmas | December 25 | Confirmed | October 1 | Early November |
| New Year's Day | January 1, 2027 | Confirmed | November 1 | Mid-November |
| Valentine's Day | February 14, 2027 | Confirmed | December 15 | Early January 2027 |
"Start Planning By" dates assume conservative lead times. Adjust earlier for LTL shipments, international sourcing, or products with long manufacturing cycles. "FBA Send-In Target" dates account for Amazon's typical 2 to 3 week receiving window plus safety buffer.
This calendar is a starting point, not a rulebook. Your actual send-in timing depends on how you ship, where you source, and how much risk you're willing to accept.
Parcel shipments typically take one week from ship to received at Amazon. That includes transit time plus Amazon's processing time. Parcel gives you the tightest planning window, but it's expensive for high-volume shipments.
LTL (Less-Than-Truckload) shipments take two to three weeks, sometimes longer if Amazon's fulfillment centers are backed up. Budget three weeks minimum. If you're planning for a major event like Prime Day or Black Friday, add another week as buffer.
AWD (Amazon Warehousing & Distribution) changes the math. AWD is bulk storage upstream from FBA. Amazon auto-replenishes your FBA inventory from AWD as units sell. You avoid the rush to ship everything directly into fulfillment centers right before peak season. AWD also has no added holiday surcharges. If you carry deep inventory and want protection against Q4 stockouts, AWD is worth reviewing.
Start with the demand date. Count backward based on your shipment method:
Example: If Prime Day 2026 lands on July 15 (estimated), parcel sellers should ship by early July. LTL sellers should ship by mid-June. Sellers importing from Asia should finalize production and shipping by late May.
Amazon's fulfillment centers slow down during peak periods. They prioritize outbound orders over receiving new inventory. That's why the table above builds in conservative buffers. If you cut it close and Amazon's receiving takes four weeks instead of two, you'll miss the event.
As of March 2026, Amazon has not confirmed Prime Day or Prime Big Deal Days dates. Here's how to plan anyway:
Use historical timing as your baseline. Prime Day 2025 ran July 8 to 11. Prime Big Deal Days 2025 ran October 7 to 8. Assume 2026 will land in similar windows unless Amazon signals otherwise.
Build your plan around the estimated window, then adjust when Amazon announces. Don't wait for confirmation to start forecasting inventory, prepping listings, or scheduling manufacturing. Lock your plan to the historical window, then shift dates by a few days once Amazon posts the official calendar.
Submit deals as soon as deal windows open. Amazon typically opens Prime Day deal submissions 4 to 6 weeks before the event. Watch Seller Central for the submission window and get your deals in early. Waiting until the last minute risks approval delays or missing the cutoff.
Communicate the uncertainty to your supply chain. Tell your manufacturer, freight forwarder, and 3PL that your target date is an estimate. Build contingency plans for scenarios where Amazon announces dates earlier or later than expected.
Our team coordinates inventory timing with ad spend, promotions, and seasonal demand to keep your products in stock when it counts.
Connect With Our TeamSpring holidays: St. Patrick's Day (March 17), Easter (April 20), and spring break season (March through early April) drive sales in categories like apparel, outdoor gear, travel accessories, home decor, and party supplies. Ship inventory by mid-January if you're targeting this window.
Valentine's Day (February 14): This falls outside the current calendar year but affects H1 2026 planning if you're selling gifts, apparel, or home goods. Ship by early January to catch Valentine's demand.
Mother's Day (May 10) and Father's Day (June 21) are gift-driven shopping windows. Categories like jewelry, apparel, tools, electronics, and personalized items see spikes. Ship Mother's Day inventory by late March. Ship Father's Day inventory by early June.
Memorial Day (May 25) kicks off outdoor and summer product demand. Categories like grills, outdoor furniture, coolers, and sports equipment see increased traffic. Ship by mid-April.
Independence Day (July 4) overlaps with early summer demand and often sits close to Prime Day. If your products fit July 4 shopping behavior (outdoor, party, patriotic themes), plan inventory that covers both July 4 and Prime Day in one shipment window. Ship by mid-June.
Amazon typically announces Prime Day 4 to 6 weeks before the event. In 2025, Amazon announced dates in early June for a mid-July event. Expect similar timing in 2026.
Before Amazon announces:
Prime Day 2025 ran July 8 to 11. That's four days, up from the traditional two-day format. Assume Prime Day 2026 will follow a similar multi-day structure unless Amazon signals a change. This means you need deeper inventory coverage, longer ad budget pacing, and more post-event stock to handle continued demand after the event closes.
As of March 12, 2026, Amazon has not announced official Prime Day 2026 dates. Plan for mid-July based on historical timing.
Deal submission windows typically open 4 to 6 weeks before Prime Day. Watch Seller Central for the announcement. Submit Lightning Deals and Prime Exclusive Discounts as soon as the window opens. Don't wait until the deadline. Amazon reviews deal submissions on a rolling basis, and popular time slots fill fast.
Coupons and promotions can be created anytime, but coordinate coupon timing with your deal schedule. If you're running a Lightning Deal, pair it with a post-deal coupon to keep conversion rates high after your deal slot ends.
When Amazon announces Prime Day 2026:
Q4 is not just Black Friday and Cyber Monday. Peak season starts October 1 and runs through New Year's Day. Sellers who treat Q4 as one continuous high-demand period, not a series of isolated shopping days, protect in-stock rate better and capture more total sales.
Amazon launched Prime Big Deal Days in October 2023 as an early-holiday kickoff event. The event returned in 2024 and 2025. Assume Amazon will run it again in 2026, likely in early-to-mid October.
Prime Big Deal Days 2025 ran October 7 to 8. As of March 12, 2026, Amazon has not announced 2026 dates. Plan for early October based on historical timing.
Prime Big Deal Days functions like a smaller Prime Day. It's a 48-hour members-only sale with Lightning Deals, Prime Exclusive Discounts, and heavy on-platform promotion. Sellers who participate see traffic spikes and conversion lift.
Inventory timing: Ship by early September to ensure stock is received before Prime Big Deal Days and available through the rest of Q4. Don't split your Q4 inventory into separate Prime Big Deal Days and Black Friday shipments. Ship one large batch in early September and let it cover the entire peak season.
Deal prep: Amazon typically opens Prime Big Deal Days deal submissions in late August or early September. Submit deals as soon as the window opens.
Black Friday 2026 is November 27. Cyber Monday is November 30.
These are the two highest-traffic shopping days of the year. Amazon promotes deals heavily across the platform, and off-Amazon advertising (Google, Meta, TV) drives additional traffic to Amazon. Sellers who are in stock and running promotions see conversion rates 2 to 3x higher than normal.
Inventory timing: Ship by early November at the latest. If you're shipping LTL or importing, ship by mid-October. Amazon's fulfillment centers get backed up in November, and receiving times stretch longer than normal.
Promotion strategy: Lightning Deals sell out fast on Black Friday and Cyber Monday. If you get a Lightning Deal slot, make sure your inventory can handle 10 to 20x normal daily sales during your deal window. If you don't get a Lightning Deal, run coupons and Prime Exclusive Discounts to stay competitive.
Advertising: Start Black Friday ad campaigns the week of Thanksgiving, not on Black Friday itself. Amazon recommended this timing in 2025, and sellers who followed it saw better performance than those who waited until Friday morning. Budget for elevated CPCs. Everyone is bidding higher during peak days.
Amazon's last guaranteed delivery date for Christmas varies by region and Prime membership status. Assume the practical cutoff for most sellers is around December 18 to 20. After that, shoppers shift to digital products, gift cards, or local pickup.
Post-Christmas demand: Don't assume demand stops on December 26. Many shoppers use gift cards, cash gifts, and post-holiday sales to buy products for themselves. Keep inventory available through New Year's Day.
Year-end inventory risk: If you over-ordered for Q4 and have excess inventory sitting in FBA after New Year's, you'll hit long-term storage fees in mid-January. Review your inventory levels in late December and create removal orders or run clearance promotions to avoid unnecessary fees.
Use this checklist to prepare for Prime Day, Prime Big Deal Days, and Q4. Adjust timing based on your shipment method and product category.
Ship parcel inventory by early June. Ship LTL inventory by mid-to-late May. Amazon hasn't announced official Prime Day 2026 dates yet, but historical timing suggests mid-July. Amazon's fulfillment centers take 2 to 3 weeks to receive and process inventory, and that timeline stretches during peak periods. Add a safety buffer to avoid missing the event.
Peak season starts October 1 and runs through December 31. Prime Big Deal Days typically kicks off in early October, followed by Black Friday, Cyber Monday, and the full holiday shopping stretch. Don't treat Q4 as a series of isolated events. Ship one large inventory batch in early September to cover the entire peak season.
Prime Day (estimated mid-July), Prime Big Deal Days (estimated early October), Black Friday (November 27), and Cyber Monday (November 30). These four events generate the highest traffic and conversion rates of the year. After that, Mother's Day, Father's Day, and Back to School are secondary peaks for specific categories.
Ship by early November at the latest. If you're using LTL or importing inventory, ship by mid-October. Amazon's receiving times slow down in November, and missing the receiving window means you're out of stock during the highest-traffic shopping days of the year.
Confirmed dates are official: holidays like Black Friday (November 27, 2026) and Christmas (December 25) don't change. Projected planning windows are estimates based on Amazon's historical event timing. Amazon hasn't announced Prime Day 2026 or Prime Big Deal Days 2026 yet, so we use 2025 dates as the baseline. Plan around the projected window, then adjust by a few days once Amazon confirms.
Parcel shipments take about one week from ship to received. LTL shipments take two to three weeks, sometimes longer during peak periods. AWD (Amazon Warehousing & Distribution) removes the need to ship everything directly into FBA before each event. You store bulk inventory in AWD, and Amazon auto-replenishes FBA as units sell. AWD has no added holiday surcharges, making it a good option for sellers who want Q4 inventory protection without rushing shipments in September.
SupplyKick helps brands build inventory strategies that keep products in stock during peak demand. We coordinate FBA timing, ad spend, and promotions so you capture more sales without bleeding margin on logistics.
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