BFCM 2026 runs from Black Friday on 27 November to Cyber Monday on 30 November. Here's what BFCM means, the full dates, what a discount really does to your margin, and a week-by-week checklist to prepare for Black Friday on profit, not revenue.
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BFCM is short for Black Friday Cyber Monday, the five days from Black Friday to Cyber Monday when most online stores do their biggest sales of the year. In 2026 it runs from Friday 27 November to Monday 30 November. The stakes keep rising: Shopify merchants sold $14.6 billion over BFCM 2025, up 27% on 2024, and Adobe tracked $44.2 billion of US online spending across Cyber Week.
Revenue is the easy part. The brands that do well out of BFCM are the ones that still have margin left on 1 December, so this guide covers the 2026 dates, what a discount really costs you, and a week-by-week Black Friday checklist built around profit rather than sales.
What is BFCM?
BFCM means Black Friday and Cyber Monday treated as one event. Black Friday is the day after US Thanksgiving, Cyber Monday is the Monday after it, and the weekend in between joins them up, so most ecommerce brands plan one offer window rather than two separate days. Many also open early-access deals a week or more before, which is why you'll hear "Cyber Week" or "BFCM season" for the whole stretch from mid-November to early December.
BFCM 2026 dates
| Day | Date | What happens |
|---|---|---|
| Thanksgiving (US) | Thursday 26 November | Early offers go live; many brands launch the evening before |
| Black Friday | Friday 27 November | Biggest single day for most DTC brands |
| Small Business Saturday | Saturday 28 November | US promotion for independent retailers |
| Sunday | Sunday 29 November | Often the quietest day; good for reminder emails |
| Cyber Monday | Monday 30 November | Biggest online day overall in the US |
| Giving Tuesday | Tuesday 1 December | Charity tie-ins; most BFCM offers close |
UK and Irish brands sell on the same dates. There's no Thanksgiving, but Black Friday is just as big, and the US calendar sets the rhythm for ad auctions on every platform.
Why BFCM is a profit problem, not a revenue problem
A discount comes straight out of contribution margin, the money left from each order after product costs, shipping, payment fees and ad spend. Product costs and shipping don't fall when your price does, so a 30% discount usually takes far more than 30% of your margin. Here's one product at $80, with $24 of product cost and $10 of shipping and fulfilment:
| Per order | Full price | 30% off |
|---|---|---|
| Price paid | $80.00 | $56.00 |
| Product cost | $24.00 | $24.00 |
| Shipping and fulfilment | $10.00 | $10.00 |
| Payment fees (3%) | $2.40 | $1.68 |
| Contribution margin before ads | $43.60 | $20.32 |
| Ad cost per order | $25.00 | $25.00 |
| Contribution margin after ads | $18.60 | -$4.68 |
The discount cuts the price by 30% and the margin before ads by 53%, so you'd need about 2.1 times the orders just to stand still, before you've paid for a single ad. And ads cost more in November, because every other brand is bidding for the same shoppers. If the ad cost per order holds at $25, every discounted order loses money. Run your own products through the contribution margin calculator and the breakeven ROAS calculator at the BFCM price, not the full price, before you commit to an offer.
This is the core idea behind our Black Friday strategy guide: decide what you can afford to give away per order, then design the offer around that number.
The BFCM checklist: how to prepare for Black Friday
Four weeks out is late but workable. This checklist runs from now to the week after Cyber Monday, in the order the decisions need to be made.
4 weeks out: set your numbers
- Work out contribution margin per product at the BFCM price. Include product cost, shipping, payment fees and an allowance for returns, and find the floor below which an order loses money.
- Set a maximum ad cost per order for each hero product. Your breakeven cost per order is the contribution margin before ads; your target should leave room for profit.
- Pick which products to promote by margin, not by bestseller rank. A bestseller with thin margin can sink the weekend; a product with more headroom can carry a bigger offer.
- Check stock cover. Promote what you can deliver, and use the weekend to move slow stock you'd otherwise mark down in January, as covered in our guide to dead stock.
- Choose the offer. A gift with purchase, a bundle or a spend-and-save tier often protects more margin than a flat percentage off everything.
3 weeks out: build demand before the auction gets expensive
- Open an early-access list on site, email and SMS, so your best customers sign up before the ad auction heats up.
- Test creative and offers now, while ads are cheaper, and keep the winners ready for launch.
- Publish your gift guides and deal pages early. New pages take weeks to show up in Google and in AI answers; our guide to how ChatGPT recommends products explains why clear product facts, FAQs and reviews help.
- Warm up last year's BFCM buyers with content and early access rather than another discount.
2 weeks out: lock it down
- Load the discounts and test checkout on mobile, including discount combinations, free-shipping thresholds and gift-with-purchase rules.
- Write the email and SMS calendar for Thursday to Tuesday, with a separate Cyber Monday angle rather than the same offer repeated.
- Freeze site and tracking changes by around 20 November so nothing breaks during peak traffic.
- Brief customer service and your 3PL on volumes, cut-off dates and returns.
BFCM week: watch profit daily
- Launch on time and check every discount code and automatic discount in a live order.
- Check contribution margin every morning, not just revenue and ROAS. If ad cost per order passes your ceiling, cut spend on that product rather than chasing volume.
- Watch stock on your promoted products and move spend before you sell out.
This is where most teams lose the plot, because the ad platforms each report their own revenue and nobody has the costs in one place. StoreHero puts Shopify orders, ad spend from Meta, Google and TikTok, and your product and shipping costs into one daily contribution margin view, so you can see on Saturday morning whether Friday made money.
After Cyber Monday: keep the customers you paid for
- Send new buyers a welcome sequence and a reason to buy again within 60 days. The second order is where BFCM customers become profitable.
- Track returns for the four weeks after the weekend and take them off your BFCM revenue.
- Plan January, often called Q5, when ad costs drop and new customers are cheaper to reach.
Black Friday ideas for ecommerce that protect margin
If a flat sitewide discount doesn't work on your numbers, these offers usually cost less margin for the same pull:
- Gift with purchase. A free item that costs you $8 to make can feel worth $30 to the customer, which a $30 discount never can.
- Bundles. Raise average order value so shipping and fulfilment are spread over more product. See how average order value feeds margin.
- Spend thresholds. Spend $100, save $15 protects margin far better than 15% off every order.
- Early access instead of a deeper discount. Your best customers often value being first more than an extra 10%.
- A different Cyber Monday offer. Give people who already bought on Friday a reason to come back on Monday.
What to track on the day
| Metric | Why it matters over BFCM |
|---|---|
| Contribution margin ($) | The money you actually keep, after product, shipping, fees and ads |
| MER | Total revenue divided by total ad spend, so no platform's attribution decides for you |
| New customer cost vs breakeven | Shows whether acquisition is still paying for itself at peak CPMs |
| Average order value | Tells you whether bundles and thresholds are working |
| Stock cover on promoted products | Stops you spending on products about to sell out |
| Refund and return rate | BFCM revenue isn't final until returns come back |
Use MER rather than platform ROAS as your daily guide, because Meta and Google will both claim many of the same orders over the weekend.
StoreHero shows contribution margin by day, product and channel, with Shopify orders, ad spend and costs joined in one view. Book a demo before the weekend and go into BFCM with your breakeven numbers set.
Key takeaways
- BFCM 2026 runs from Black Friday on Friday 27 November to Cyber Monday on Monday 30 November, with Thanksgiving on 26 November.
- Shopify merchants sold $14.6 billion over BFCM 2025, up 27% on 2024.
- A 30% discount on an $80 product with $34 of product and shipping cost cuts margin before ads by 53%, not 30%.
- Set a maximum ad cost per order for each hero product at the BFCM price before you choose the offer.
- Gift with purchase, bundles and spend thresholds usually protect more margin than a sitewide percentage off.
- Judge the weekend on contribution margin and MER, not platform ROAS.
Frequently asked questions
What does BFCM stand for?
BFCM stands for Black Friday Cyber Monday. It's the stretch from Black Friday, the day after US Thanksgiving, to the following Monday, and most ecommerce brands treat it as one sales event rather than two separate days.
When is BFCM 2026?
BFCM 2026 runs from Black Friday on Friday 27 November to Cyber Monday on Monday 30 November. Thanksgiving is Thursday 26 November and Giving Tuesday is 1 December.
How far in advance should you prepare for Black Friday?
Ideally 8 to 10 weeks, so you can set margins, stock and offers and test creative while ads are cheaper. With four weeks to go you can still set your numbers, choose a margin-safe offer, open an early-access list and lock down your site.
Is Black Friday or Cyber Monday bigger for ecommerce?
In the US, Cyber Monday is the bigger online day: Adobe tracked $14.25 billion of online spending on Cyber Monday 2025 against $11.8 billion on Black Friday. For many DTC brands, though, Black Friday is their biggest single day.
Should you discount on Black Friday?
Only if the discount still leaves contribution margin after product costs, shipping, fees and November ad costs. Many brands do better with a gift with purchase, bundles or spend-and-save tiers than with a sitewide percentage off.
