Table of Contents
- Introduction
- When should you start preparing for Black Friday?
- The 14-week countdown
- What actually breaks first?
- A quick self-check
- The short version
Introduction
Black Friday 2026 falls on Friday 27 November, with Cyber Monday on 30 November. That’s 14 weeks from today. The brands that come through peak in good shape are roughly 80% ready by mid-October and then deliberately stop changing things – which means the real work happens between now and the end of September, not in the panic of November.
If that sounds early, here’s the uncomfortable bit: most of what goes wrong at peak was decided in August. Stock ordered too late. A packaging change made in October that nobody tested. A 3PL conversation started in November, when every good one is already full.
So this is the plan. Fourteen weeks, laid out week by week, written for Irish eCommerce brands shipping into Ireland and the EU.
Peak season 2026, key dates
Black Friday – Friday 27 November
Cyber Monday – Monday 30 November
Recommended freeze date – mid-October
EU customs handling fee increase – 1 November
Last order dates (Ireland) – typically the third week of December
When should you start preparing for Black Friday?
Now – and specifically, August is when the decisions with long lead times need making.
The reason is simple math. If you need new stock, that’s a 6-12 week lead time for most categories. If you need new packaging, add 4-6 weeks. If you’re changing fulfilment partner, a clean migration takes 4-8 weeks and you don’t want it landing mid-peak. Work backwards from 27 November and August is where those decisions have to sit.
There’s a second reason, and it’s about how peak actually behaves. Black Friday accounted for 33% of Black Friday–Cyber Monday weekend sales in 2025, with Cyber Monday taking 23%. But the weekend isn’t the whole story – peak now stretches from early November to the last shipping date before Christmas. You’re not preparing for one Friday. You’re preparing for roughly six weeks of sustained above-normal volume.
And volume changes what your customers experience. Across Black Week 2025, average consumer-facing delivery promises stretched from 2.7-5.6 days on the Monday to 3.8-6.6 days by the Sunday as volume climbed. That’s not carriers failing. That’s retailers adding buffer because they could feel the strain.
The 14-week countdown
Weeks 14-12 (18 August – 7 September) – Decide
This is the block where the expensive, slow decisions get made.
Forecast your peak. Take last November’s daily order numbers and your current year-on-year growth. If you’re up 40% on the year, assume your peak days are up at least 40% too – and probably more, because peak amplifies. If you don’t have last year’s data, take your best-ever day and multiply by three.
Order long-lead stock. Anything coming from outside the EU needs ordering now. Since the de minimis change on 1 July, every parcel entering the EU carries a customs charge, and there’s another increase landing on 1 November – so factor both the timing and the cost into what you order.
Have the awkward conversation about capacity. Can your current setup physically ship three times your normal day? Not “could we work late” – actually ship it, accurately, on the same day. If the honest answer is no, this is the month to do something about it, because a fulfilment migration takes 4–8 weeks and nobody sensible starts one in November.
Sort your packaging compliance. The EU’s packaging regulation became enforceable on 12 August 2026. If you haven’t got Declarations of Conformity and technical documentation for each packaging format, that’s a job for this block, not December.
Weeks 11-9 (8-28 September) – Commit
Lock your stock orders. After this point you’re buying at short notice, at worse prices, with less certainty.
Test your integrations properly. Not a single test order – a realistic burst. Push volume through and watch what breaks. Stock sync lag, address validation, tracking updates, order routing: these all behave differently at 500 orders a day than at 50.
Write your delivery promises down. Decide your cut-off time and what you’ll publish on the site. Be specific: “order by 3pm for next-day delivery across Ireland” is a promise you can hold people to. “Fast delivery” is a promise nobody can hold you to, which sounds safer and actually costs you conversions.
Brief your support team. Agree now what happens when something’s late, what you’ll offer, and who decides. Peak is a bad time to invent policy.
Weeks 8-6 (29 September – 19 October) – Lock down
Get stock in early and receive it properly. Goods-in is the bottleneck nobody plans for. Stock that arrives unbooked, unlabelled, or in a surprise delivery sits on a dock instead of on a shelf, and you cannot sell what hasn’t been received. Book it in, send accurate purchase orders, and get it in before the receiving queue fills.
Run a dress rehearsal. Pick a normal week and process it as though it were peak – same cut-offs, same handover, same reporting.
Freeze your changes by mid-October. No new integrations. No site rebuilds. No packaging switches. No fulfilment migrations. Every change you make after this point is a change you’re testing live, during your most expensive weeks of the year. The discipline is worth more than the optimisation.
Weeks 5-2 (20 October – 16 November) – Ready
Confirm carrier cut-offs and capacity. Ask your carriers directly what their peak cut-offs are – they often differ from the rest of the year.
Prepare for the 1 November customs change. An additional handling fee applies from that date on top of the existing duty. Know what it does to your per-parcel cost before it lands, not after.
Build your comms. Write the dispatch confirmation, the in-transit update, and the delivery-day message now. Proactive tracking updates are the cheapest way to cut “where is my order?” tickets, and they take fifteen minutes to write in October and forever to write in November.
Plan for returns before they arrive. Retailers are preparing for return rates above 20% this peak. Returns peaked the week before Christmas and around Boxing Day last year at 17.7%, up 10% year on year. A return you can process and resell quickly is recoverable revenue; one that sits in a corner until January is a write-off.
Week 1 (17-27 November) – Execute
Publish everything clearly. Cut-off times, delivery windows, and returns policy, all visible before someone reaches checkout.
Watch the curve, not the calendar. Your busiest day may well not be Black Friday itself. Watch what’s actually happening and staff to that.
Leave the system alone. If something’s slightly suboptimal, note it for January. Don’t fix it live.
What actually breaks first?
From watching a lot of brands go through peak, the failures arrive in a fairly consistent order.
- Stock accuracy. Small variances that were survivable at normal volume become oversells at peak, and an oversell at Christmas is a refund plus an unhappy customer plus a support ticket.
- Goods-in. Late stock arrives at the same moment outbound volume peaks, and receiving becomes the queue everything else waits behind.
- Cut-offs. The published promise slips, quietly at first, and customer expectations break before anyone updates the website.
- Support. “Where is my order?” volume climbs faster than order volume, because more orders plus longer delivery times multiply.
- Returns. They arrive in December and January, land on a team already exhausted, and get treated as an afterthought.
Notice that none of these are exotic. They’re all ordinary problems that are perfectly manageable in October and expensive in November.
A quick self-check
Answer honestly:
- Do you know your busiest day last November, and what your busiest day this November is likely to be?
- Can you ship three times your normal daily volume, accurately, same day?
- Is all your peak stock ordered?
- Do you have a published cut-off time you can actually hold?
- Do you know what a return costs you?
- Is your packaging compliant with the rules that came into force on 12 August?
If you hesitated on more than two, there’s still time – but the time is now, not October.
If you’d like a second opinion, our fulfilment audit looks at your operational data and tells you where the pressure is likely to land. It’s free, it’s confidential, and it takes about a week. We’re doing them for a small number of Irish brands ahead of peak.
The short version
Black Friday is 27 November. You have 14 weeks. The expensive decisions – stock, capacity, packaging, and partner – need making in August and September, because they all have lead times measured in weeks. October is for locking down and testing. November is for executing, not fixing.
Peak rewards the boring stuff: ordering early, receiving properly, publishing a promise you can keep, and then leaving things alone.
Thinking about whether your current setup will hold? We’re happy to take a look and tell you straight. Request a quote or a chat →
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