What changed
Seller preparation plan for Amazon's Prime Day event
When
Prime Day 2026 ran June 23 to 26; 2027 dates not yet announced
Who it affects
Amazon sellers and brands planning Prime Day deals and ads
What to do
Start planning 3 to 4 months before the event

Key takeaways

  • Prime Day 2026 ran June 23 to 26; 2027 dates have not been announced.
  • In 2026, discounted deal submissions closed April 30 and inbound cutoffs fell on May 27 and June 5.
  • Start three to four months out: stock, deals, listings, then a three phase ad plan.

Prime Day 2026 seller calendar

  1. Early deal submission, $50 off fee

  2. Last day to schedule deals and PEDs

  3. AWD and minimal split FBA cutoff

  4. Amazon-optimized split FBA cutoff

  5. Prime Day

When is Prime Day, and how early should you start?

Prime Day 2026 ran from June 23 to June 26, starting at 12:01 a.m. PDT in the US and 21 other countries, with more countries later in the summer. It was the second year in a row that Prime Day ran four days. Amazon has not announced 2027 dates, but the seller calendar for 2026 shows how far ahead the work starts: discounted deal submissions closed at the end of April, roughly eight weeks before the event.

Plan on three to four months. That gives time to forecast stock, ship it before inbound cutoffs, fix listings and get deals approved.

The 2026 Prime Day seller deadlines

These are the dates Amazon gave sellers for Prime Day 2026. Expect a similar shape next year, and watch Seller Central news for the new dates.

  • April 30: Best Deals and Lightning Deals submitted by midnight PT saved $50 on the upfront fee
  • May 26: last day to schedule Best Deals, Lightning Deals and Prime Exclusive Discounts
  • May 27: AWD inbound cutoff and FBA cutoff for minimal shipment splits
  • June 5: FBA cutoff for Amazon-optimized shipment splits
  • June 23 to 26: Prime Day 2026

How to prepare for Prime Day: step by step

Work through these steps in order. Each one depends on the one before.

  • Review last year's event data: sales, conversion, ad spend and stockouts by ASIN
  • Pick hero products with healthy margin, ratings and stock
  • Forecast demand and place purchase orders early
  • Ship inventory before Amazon's inbound cutoffs
  • Submit deals early to get the fee discount and better placement
  • Fix listings: images, titles, bullets, A+ Content and reviews
  • Build the ad plan for lead-in, event and lead-out
  • Set a daily budget plan and stock alerts for event days
  1. 1Review

    Last event's data

  2. 2Stock

    Forecast and ship early

  3. 3Deals

    Submit before the discount date

  4. 4Listings

    Fix hero ASINs

  5. 5Ads

    Lead-in, event, lead-out

  6. 6Measure

    Profit and rank after

Inventory: the deciding factor

Amazon's notice for 2026 warned that inventory received after the cutoffs may not be processed in time for Prime eligibility, which means losing the Prime badge during the event. Running out of stock is worse: it stops sales and ads, and can hurt organic rank after the event. Forecast with a buffer, and remember that inbound capacity and restock limits may limit how much you can send.

Check your FBA capacity limits early in the spring. If your limit is tight, prioritize hero ASINs and deal products, and consider holding backup stock in AWD or a prep center so you can replenish quickly once the event starts selling through.

Choose the right deal types

Prime Day deals come in three main forms. Amazon Lightning Deals give short bursts of visibility on Today's Deals. Best Deals run longer. The Prime exclusive deal, or Prime Exclusive Discount, puts a members-only strikethrough price on a range of ASINs. Coupons can add a clip badge for extra click-through. Our guide to Amazon promotions for sellers compares fees and rules.

Fix listings before traffic arrives

Event traffic magnifies whatever is on the page. A weak main image or a missing size chart costs more conversions during Prime Day than on any normal week. Make sure every hero ASIN has strong images, clear bullets, A+ Content, a solid review count and correct variations. Products with few reviews can use Amazon Vine in the spring, so reviews are live by June.

Build a lead-in, event and lead-out ad plan

Amazon Ads frames Prime Day in three phases, and the budget should follow them.

  • Lead-in, 2 to 4 weeks before: build awareness and retargeting audiences with Sponsored Brands and Sponsored Display
  • Event days: raise budgets so campaigns never run out, and raise bids on converting terms
  • Lead-out, 1 to 2 weeks after: retarget event visitors and cart abandoners
  • Check budgets several times a day during the event
  • Pause deal ASINs in ads if stock gets low

After Prime Day: what to measure

Judge the event on profit and what it set up, not just revenue. Compare sales, TACoS and organic rank for two to four weeks after the event against the weeks before. Check which deals paid back after fees, which search terms converted best and where you ran low on stock. Then feed that into Prime Big Deal Days in October and Amazon Black Friday 2026 planning.

How PPC Spider helps

PPC Spider runs Prime Day preparation as a project: stock forecasts in SpiderOS, deal selection with margin checks, listing fixes and a three phase ad plan through Amazon PPC management. Budgets and bids are monitored throughout the event. To see where your account stands, request a free Amazon audit.

Sources

  • Amazon Ads: Prime Day (advertising.amazon.com/events/prime-day)
  • Amazon Seller Forums: Prime Day 2026 deal and inventory deadlines (sellercentral.amazon.com/seller-forums/discussions/t/59a5cd20-deae-4bb9-9282-e5ec24c3871f)
  • PPC Land: Lightning deal (ppc.land/lightning-deal/)
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