Here's the pattern we've watched play out for twenty years: in late summer, a CEO or VP of Sales looks up from a strong Q2 and says, "We need to start getting ready for Q4." By then, the brands that are going to win Q4 have already been planning it for six months.
Q4 is where the year gets made. For most consumer brands, the November–December window represents up to 30% of annual sales. The 2025 holiday season crossed $1 trillion for the first time ever. A record 202.9 million shoppers turned out over the Thanksgiving–Cyber Monday weekend, and the NRF is forecasting total 2026 retail sales to grow 4.4% to $5.6 trillion.
The upside is enormous. The deadlines to capture it are earlier than most brands think.
The real Q4 calendar, working backward
Most internal teams plan forward from September. The brands that actually win Q4 plan backward from Black Friday. Here's what the 2026 calendar actually looks like:
- November 27–30, 2026: Black Friday through Cyber Monday.
- Early-to-mid October 2026: Amazon Prime Big Deal Days. Effectively a second peak. Deal submissions open late August / early September.
- October 2026: Target Circle Week and Walmart Deals typically run in the same window - so “October peak” is now as important as Thanksgiving week.
- October 1, 2026: Walmart Fulfillment Services (WFS) holiday inventory deadline. Miss it, and your product isn't available for Black Friday through Walmart's fulfillment network.
- Mid-September 2026: Walmart listing submission deadline to qualify for holiday gift guides and homepage placements.
- Early September 2026: Recommended inventory arrival at Amazon FBA to clear receiving and be in stock through Q4.
- Late August / early September 2026: Amazon Prime Big Deal Days submission window opens. Creative, advertising budgets, and promotional pricing finalized.
- June 2026: POs for Q4 product placed - especially for brands with international supply chains. This is the last realistic window for international freight to arrive by early November.
- May 26, 2026: Amazon Summer Prime Day deal submission window closes.
- April 30, 2026: Submit Amazon Summer Prime Day deals before this date to get $50 off the deal fee per submission.
Work that calendar backwards and you'll see the obvious conclusion: April and May are the planning months. Not September.
What matters most, right now
If you're looking at the calendar in April and wondering where to start, here's the short list of what we prioritize with our clients at this stage:
1. Finalize the Q4 forecast - and place the PO. International supply chains need June PO placement to land by early November with any margin for delay. If you're still finalizing quantities in July, you're buying air freight at Black Friday rates - or missing the window entirely.
2. Don't plan one Black Friday. Plan the peak window. Prime Big Deal Days in October has become a parallel peak, not a warm-up. Target Circle Week and Walmart Deals land in the same window. Brands that go heavy on one date and light on the others leave significant revenue on the table. The promotional calendar should cover both peaks, with distinct strategy for each.
3. Reserve retail media budget now. Amazon Ads, Walmart Connect, and Target Roundel inventory books up fast for Q4, and CPMs rise materially as the date approaches. Reserving sponsored product and video budget in April or May is dramatically cheaper - and more available - than reserving it in October.
4. Lock the promotional calendar with buyers. Major retailers expect promotional commitments 90+ days in advance for creative, pricing, and in-store marketing coordination. For Black Friday, that means mid-August at the absolute latest. For Prime Big Deal Days, August deals have to be locked in July. Buyer relationships built in April pay for themselves in October.
5. Audit listing content and compliance - twice. Q4 is the worst possible time to be fixing a suppression or debating a routing guide change. Audit every top-velocity SKU's listing, images, attribution, and EDI compliance in April and again in July. Fix the small things now. They don't get easier in September.
What usually goes wrong
The two most common failure modes we see:
Under-ordering because Q3 feels fine. Brands confuse steady summer velocity with a soft Q4 and commit conservatively. Then peak arrives and they're stocking out by mid-November, losing both the revenue and the search rank.
Treating promotional strategy as an ad plan. Promotions are a whole-stack decision - inventory position, listing readiness, retailer co-marketing, advertising cadence, fulfillment capacity. Brands that treat Black Friday as “turn up the Amazon Ads spend” end up competing on price while the brands with a coordinated plan are protecting margin.
The takeaway
Q4 isn't won in November. It's won in the decisions made in April, May, and June - the ones about inventory commits, retailer promotional calendars, content quality, and budget allocation across the peak window.
If your team is still in “we'll deal with that after summer” mode, that's the gap. And closing it is exactly the kind of work we do across Amazon, Walmart, Target, Home Depot, and the rest of the modern retail stack.
The brands that treat Q4 like a six-month operation - not a six-week sprint - are the ones that crush it.
And then some.
About And Then Some Marketing: ATS is an omnichannel retail performance partner for consumer goods brands, with 20+ years of experience and $2B+ in retail sales supported across e-commerce, marketplaces, and brick-and-mortar. Start planning Q4 now →
