BFCM stands for Black Friday Cyber Monday — the four-day retail period running from the Friday after American Thanksgiving through the following Monday. It is the largest shopping window of the ecommerce year.
Most brands use BFCM to describe the whole campaign period rather than two dates, since offers typically open before Black Friday and run past Cyber Monday.
Black Friday 2026 falls on Friday 27 November. Cyber Monday 2026 falls on Monday 30 November.
Neither date is fixed. Both anchor to American Thanksgiving, the fourth Thursday of November, so they shift annually.
If you sell subscriptions, one of those dates matters more than the two everyone plans around. Every subscriber you acquire on 27 November is charged again roughly 30 days later — around 27 December, in the quietest week of the year, when your campaign is long over. That second date is where BFCM is actually decided.
Neither name started where you'd expect, and the short version is worth knowing because it explains why BFCM is still framed as a one-day revenue event.
Black Friday was originally an insult. Philadelphia police used it in the 1950s to describe the traffic chaos after Thanksgiving, when crowds flooded the city ahead of the Army-Navy game. Merchants tried to rebrand it "Big Friday" in 1961 and failed. The flattering explanation — retailers moving from red ink into black — came later and stuck by the 1980s.
Cyber Monday was invented by marketers, not shoppers. The National Retail Federation coined it in a press release on 28 November 2005, credited to Ellen Davis working with Scott Silverman of Shop.org, after research showed the Monday after Thanksgiving was one of the biggest online shopping days of the year. The reasoning was that office internet was faster than home internet in 2005.
Both names were built around a single-day revenue spike. That framing still shapes how every BFCM report is written — and it's the reason subscription brands get almost nothing useful out of them.
For a store selling one-time products, BFCM is a complete transaction. Money in, product out, done.
For a subscription brand, the weekend produces first orders, not customers. The economics only close later:
Three things follow from that.
The discount selects your cohort, not just your margin. A buyer who subscribed because of 40% off is, by definition, someone who responds to 40% off. When the second order arrives at full price, the offer they said yes to no longer exists. Every other month your subscribers self-select on product fit. In November they self-select on price.
Acquisition cost is front-loaded. The discount, the ad spend and the fulfilment all land on order one. Contribution doesn't turn positive until somewhere around the second or third charge. A subscriber who cancels at the second charge isn't revenue you failed to grow — it's money you spent and didn't get back.
Your existing subscribers are in the sale too. A subscriber renewing at your standard 15% subscribe-and-save rate on 28 November is looking at a 40% sitewide discount they can't have. No one-time store has this problem. Handling it badly turns your best customers into cancellations in December.
The standard checklists — inventory, site speed, shipping cut-offs — all still apply. Shopify's BFCM checklist covers those properly.
What they don't cover is the subscription layer:
Loop's BFCM checklist for subscription brands covers that layer in full, and the guide to turning BFCM buyers into subscribers covers the conversion side.
Shopify merchants generated $14.6 billion over BFCM 2025, up 27% year over year, with more than 81 million customers buying across the weekend. That followed $11.5 billion in 2024.
Worth reading that number carefully if you sell subscriptions. It counts orders placed, which is the right measure for most of the merchants in it and an incomplete one for you. Every BFCM report published in this ecosystem stops at the transaction. None of them follow the cohort into January — which is exactly where a subscription brand's version of the answer lives.
What does BFCM mean?
BFCM means Black Friday Cyber Monday — the four-day retail period from the Friday after American Thanksgiving to the following Monday.
When is BFCM 2026?
Black Friday 2026 is Friday 27 November and Cyber Monday 2026 is Monday 30 November.
Is BFCM the same as Black Friday?
No. Black Friday is one day within BFCM. BFCM covers the whole period from Black Friday through Cyber Monday.
Why do BFCM dates change every year?
Both days anchor to American Thanksgiving, which falls on the fourth Thursday of November rather than a fixed date.
Should subscription brands discount on Black Friday?
Yes, but the structure matters more than the depth. A flat recurring discount books the same churn at lower margin, while a tapering discount or a minimum billing cycle protects the cohort you acquire.
How do subscription brands measure BFCM success?
By second-order retention for the BFCM cohort, compared against a non-BFCM control cohort, read in January after the first renewal has run. Revenue on 1 December is a sales number, not a retention one.