Your inventory cutoff is 22 days out. The new fuel surcharge made being late twice as expensive.

Amazon moved Prime Day to late June.

Most operators are still building their H1 plans around the old July window. That window is gone. Bloomberg and Reuters reported the shift in March. The exact dates aren't confirmed, but the inventory deadlines are: May 27 for minimal shipment splits. June 5 for optimized splits. Today is May 5. You have 22 days.

That alone would be uncomfortable. What makes it expensive is what happened on April 17.

The 3.5% fuel and logistics surcharge went live across FBA. On May 2 — three days ago — it expanded to Multi-Channel Fulfillment and Buy with Prime. Average impact is $0.17 per unit, but on standard-size items priced $40–$60, it climbs to $0.51. For an operator moving 50,000 units a month at a $5 average fulfillment fee, that's an extra $8,750 per month. Roughly $105,000 a year on a single line item that didn't exist 30 days ago.

Now stack that on the Prime Day window.

If your inventory misses May 27 and Amazon catches it up by mid-June, every unit through the event still pays the surcharge. You're absorbing higher fees on inventory that's late to the highest-traffic four days of Q2. The math gets worse if you assumed July, ordered at March cadence, and your factory ships 14 days behind plan.

The third hit is pricing. Amazon tightened deal eligibility this cycle: your Prime Day deal price must be equal to or lower than your lowest price in the prior 60 days. That means decisions made in early March — what you discounted, what you ran on coupon, what you re-listed at — already determined whether you can run a profitable deal in late June. Sellers who ran aggressive April promotions to clear aged inventory boxed themselves out of Prime Day pricing without realizing it.

The early-bird deal submission discount ($50 off per Lightning Deal or Best Deal) closed April 30. The deal submission window itself closes May 26. Twenty-one days.

The operator takeaway: This Prime Day, late inventory isn't just a missed event. It's a fee-amplified stockout that taxes your Q3 cash position. The brands that win late June 2026 made their inbound, pricing, and deal decisions in February. Everyone else is doing damage control.

If your top 10 SKUs are still in transit, or your Q2 pricing strategy hasn't been re-modeled against the surcharge, our ops team is offering a free 22-day pre-Prime audit on your inventory and deal eligibility. We'll review your current stock positioning, surface any Lightning Deal or Prime Exclusive Discount risks, and flag SKUs at risk of going out of stock during peak. Grab a 15-minute slot here and we'll walk you through the intake on the call: book a time here.

— Dan