Five stacked Q1 changes compound into one cash problem — sitting directly in front of your Prime Day inventory commits.
The $233K hole nobody booked
If you run $1 million a month in Amazon GMV, your balance sheet got roughly $233,000 lighter in March.
No line item labeled it. No Seller Central notification flagged it. It just moved — from available funds to reserve, from working capital to a receivable waiting seven days after confirmed delivery.
That's the mechanical effect of DD+7, the Delivery-Date-Based Reserve that Amazon migrated long-tenured North American accounts onto on March 12. For an 8-figure operator, the one-time working capital compression runs into the millions. It's not a fee. It's a permanent extension of your receivable cycle, and most Q2 cash forecasts we're rebuilding still don't have it modeled as a line item.
Five shifts, one compound
DD+7 is the largest, but it's one of five structural changes that landed within roughly 90 days of each other:
January 15 — FBA fulfillment fee increase. Averaged $0.08 per unit, concentrated on sub-$12 SKUs where it kills contribution margin.
March 12 — DD+7 reserve migration. The $233K per $1M GMV hit.
March 31 — End of commingled inventory and FBA prep services. Prep cost and SKU-level tracking pushed back to the seller.
April 17 — 3.5% fuel and logistics surcharge layered onto FBA fulfillment fees.
April 15 → August 1 — Ad billing migration off credit cards onto seller balance or Pay-by-Invoice. Deferred after the April 15 seller boycott, not cancelled.
Looked at individually, none of these register as a crisis. Looked at cumulatively, they compress contribution margin 40–60 basis points and extend the cash conversion cycle 7–10 days — at the exact moment Prime Day inventory commits come due.
The Prime Day compression
Prime Day 2026 hasn't been officially dated, but the historical window puts it in early-to-mid July. Map the cash mechanics against that:
T/T deposits to overseas suppliers: hitting now through mid-May.
FBA inbound: needs to land 3–4 weeks pre-event.
Peak ad spend ramp: June.
Revenue collection under DD+7: pushed deep into late July and August.
Ad billing migration: August 1 — exactly as Prime Day receivables would normally clear.
Every major cash outflow for Prime Day 2026 now leads every major cash inflow by roughly three weeks longer than it did in 2025. The 2–3% cashback most operators were silently running on a business card — the quiet offset against rising ACoS — is also on the August 1 clock.
The operators who'll win Prime Day 2026 aren't the ones with the sharpest creative. They're the ones who modeled this compression in March and lined up infrastructure before June: lender conversations reopened, supplier terms renegotiated, Pay-by-Invoice enrollment submitted, 13-week forecast recut with DD+7 explicitly baked in.
The ones who didn't will find the hole the week they're supposed to be placing their second Prime Day commit.
Three moves this week
Zero cost, compresses Q2 risk before it compounds:
Recut the 13-week cash forecast with DD+7 as a dedicated line item — not an estimate, not a footnote. Model it order-by-order if you run tight.
Call your inventory financing lender. If the new forecast tightens a covenant, having that conversation in April is a renegotiation. Having it in July is a crisis.
Enroll in Pay-by-Invoice now. Don't test the workflow for the first time in August with Prime Day receivables in flight.
What we're seeing
Every 7- and 8-figure P&L we've rebuilt over the last three weeks has the same gap in the same place — a Q2 working capital hole between $180K and $2.4M that wasn't in the January model. Consistent enough that we've started recutting it as a standard part of the diagnostic.
If you want a second set of eyes on your Prime Day cash curve before May commits close, book a 20-minute review here.
— Dan Founder, AMZ Elite
Friday's Burn covers a different corner of the Amazon world. Different story, different tone, same inbox.
