A year-end sale is a retail promotion run in the final weeks of the calendar year, in which merchants cut prices to clear seasonal stock, absorb post-Christmas returns and close out annual sales targets. It usually runs from early December through Boxing Day into early January, though some retailers now attach the label to promotions opening in October. It exists because winter and gift merchandise loses value after December 25, and the reporting year rewards revenue booked before it closes.

For advertisers, it is the tail of the year's most expensive buying period. It follows Black Friday and Cyber Monday and runs into what media buyers call Q5: the days between Christmas and New Year, when auction prices fall faster than consumer demand.

How a year-end sale works

Mechanically, a year-end sale is a sequence of markdowns planned against an inventory position: what remains of holiday buying, how much margin can be surrendered and how much space spring stock needs. Early December discounts tend to be gift-led; deeper clearance follows Christmas, when unsold lines and returns come back.

Adobe's 2026 US forecast has discounts peaking at up to 30% during Cyber Week and settling at 10% to 15% through December, although its own daily chart shows deeper cuts in the final days of the year, a discrepancy visible in the $275.1bn forecast PPC Land covered in September.

The "year-end" label does not always match a retailer's books. Many large US chains report on the National Retail Federation (NRF) 4-5-4 calendar, which splits a 52-week year into months of four, five and four weeks and adds a 53rd week when four or more days of January remain. Their fiscal year closes in late January or early February, so the January clearance is their true fiscal year-end sale.

Returns shape the final phase. According to Adobe, US online returns between December 26 and 31, 2025 rose 4.7% year on year, even as season-wide returns fell 1.2%; that window held about one in seven returns.

Where advertisers and platforms meet it

On the buy side, the period is defined by price. Billy Grace's 2026 Black Friday playbook put the median CPM (cost per thousand impressions) for Black Friday week 2025 at EUR 8.83, about 36% above an autumn baseline of EUR 6.50. Auction pressure then eased, and in the final week of the year, from December 29, median return on ad spend ran above the Black Friday week reading while revenue stayed well below the peak. The figures rest on Billy Grace's own attribution model. The reset is sharper in open programmatic markets: MediaMint's DataBeat report showed US programmatic CPMs fell 32.5% from December 2025 to January 2026.

That gap between cheaper media and still-active shoppers is the commercial argument for Q5. Pinterest's 2026 European guide defines Q5 as "the week between Christmas and New Year's" and says one in two European monthly users keep shopping after the festive season; the supporting footnote is not published. Meta's 2025 festive season guide folds Q4 and Q5 into one execution phase.

Platforms provide specific controls:

  • Seasonality adjustments in Google Ads tell Smart Bidding to expect a conversion-rate change over a set window. Google introduced them for Search and Display on August 28, 2019. Help documentation recommends them for events of about one to seven days and warns effectiveness may drop beyond 14 days, so a multi-week clearance fits poorly. In a 2024 poll, 65% of 169 practitioners said they used adjustments for Black Friday.
  • Sale price annotations in Google Merchant Center show a struck-through price when the sale_price attribute sits below price. According to Google, the discount must exceed 5% and stay under 90%. The base price must have been live for 5 of the past 30 days, or 15 of the past 200, for US Shopping ads, and 30 of the past 200 in the UK, Germany, France and nine other markets. Promotions, a separate feed of coupon-style offers, gained audience targeting in November 2025.
  • Amazon has required since April 23, 2026 that a seller's list price be backed by outside evidence before a strike-through appears. Its Black Friday and Cyber Monday deal submissions closed on October 20, 2026, and holiday peak fulfilment fees run until January 14, 2027.

Inventory quality also slips. Integral Ad Science found traffic to made-for-advertising sites rose 5% across Christmas Eve and Christmas Day 2025 against the previous week.

Origin and evolution

John Wanamaker's Philadelphia department store introduced the January white sale in 1878, marking down bed linen to fill a slow month. In Japan, fukubukuro, sealed "lucky bags" of goods sold well below list price at the first sales of the new year, date from the late Meiji era (1868-1912). Sources disagree on who started them: Wikipedia credits Ginza Matsuya, while Fun Japan names Daimaru Gofukuten in Nihonbashi, Tokyo as the most widely accepted birthplace.

E-commerce pulled demand earlier. Ellen Davis of the NRF coined "Cyber Monday" in a press release on November 28, 2005. Alibaba launched Singles' Day on November 11, 2009. Amazon added a second members-only event in October 2022, now called Prime Big Deal Days. Each date shifted volume forward, leaving the post-Christmas weeks as a clearance tail. In 2025, Google said 34% of consumers began holiday shopping in October or earlier, with buying continuing through January.

The label itself has drifted. SHEIN opened a "Year-End Sale" on October 20, 2026 alongside its Black Friday offers, and reported that 61% of surveyed app users put themselves first on holiday lists, the self-gifting behaviour that extends spending past the gift deadline.

Why it matters for marketers

The sums are large, and the measurement varies by source. On October 15, 2026, the NRF forecast US November-December retail sales of $1.013 trillion, up 4.2%, after $972 billion and 3.1% growth in 2025. Adobe expects US online spending of $275.1 billion, up 6.7%.

Salesforce's data is the most direct on the year-end tail: global online sales reached $1.29 trillion in the 2025 season, up 7%, and the last two weeks of December grew 12% globally and 9% in the US. Mastercard SpendingPulse, by contrast, measured November 1 to December 21 and so excludes most post-Christmas trading; it reported US retail sales excluding autos up 3.9%, though the release's page title says 4.2%. The figures are not interchangeable.

In the UK, MRI Software recorded Boxing Day 2025 footfall up 4.4% year on year, its strongest reading in a decade.

Limitations, criticisms and disputes

Reference prices are the main legal fault line. In the European Union, Article 6a of the Price Indication Directive, inserted by the Omnibus Directive (2019/2161) and applicable since May 28, 2022, requires any announced price reduction to show the lowest price of the previous 30 days. On September 26, 2024, the Court of Justice of the European Union ruled in Aldi Süd (C-330/23) that a percentage discount must be calculated from that lowest price, not the price charged the day before. Compliance is patchy: a sweep by consumer authorities in 25 countries, published March 26, 2026, found 30% of 314 online traders referenced discounts incorrectly during Black Friday sales.

In the UK, the Digital Markets, Competition and Consumers (DMCC) Act's consumer provisions took effect on April 6, 2025, letting the Competition and Markets Authority (CMA) fine firms up to 10% of global turnover. On November 18, 2025, the CMA opened investigations into eight firms, including Wayfair and Appliances Direct, over whether time-limited sales ended when advertised. According to law firm Lewis Silkin, the government plans an autumn 2026 consultation on adding fake "was" prices to the Act's list of banned practices. In the US, the Federal Trade Commission's Guides Against Deceptive Pricing (16 CFR Part 233) require a former price to be "the actual, bona fide price" offered "for a reasonably substantial period of time". Australia's regulator fined James Lane and Vuly A$59,400 over sales that ran past their advertised end dates, a recurring risk when a December sale quietly becomes a January one.

Effectiveness is also disputed. A Kantar and IPA study of 250 UK consumer goods leaders found that 75% could not say what share of their promotions made a profit. Les Binet, who co-presented it, said: "Price promotions are like class A drugs: expensive, dangerous and addictive." Attribution adds distortion, since December revenue can reverse when goods come back in January.

Year-end sale versus adjacent terms

  • Black Friday and Cyber Week are fixed dates; in 2026, Cyber Week runs from November 26 to 30. A year-end sale follows them.
  • A clearance sale liquidates surplus stock at any time of year. Year-end sales include clearance but also gift promotions.
  • An end-of-season sale is tied to fashion seasons, summer as well as winter, and in some countries to legally defined sale periods.
  • Fiscal year-end is an accounting date. For retailers on the 4-5-4 calendar it falls weeks after the calendar year-end sale.
  • A seasonal sale is the broad category; Boxing Day and Japan's New Year sales are regional forms.

Recent developments

The 2026 cycle started early. Amazon held Prime Big Deal Days on October 6-7 across 22 countries; Adobe data put online spending during the event at $9.86 billion, close to its forecast, and Adobe issued a correction to its holiday release on October 16 without changing any figures. Meta launched Ads Super Burst on October 15, selling 3 to 24 hour windows with optional category exclusivity pitched partly at the holidays. In the UK, Marketing Signals found core "Black Friday" searches down 36% since 2019. The pattern points to a calendar that is longer and flatter, with the year-end sale as one of several overlapping peaks rather than a final clearance.

Timeline

  • 1878 - John Wanamaker introduces the January white sale in Philadelphia.
  • 1868-1912 - Fukubukuro lucky bags appear in Tokyo department stores in the late Meiji era (origin store disputed).
  • November 8, 1967 - FTC Guides Against Deceptive Pricing published in their codified form at 16 CFR Part 233.
  • November 28, 2005 - NRF's Ellen Davis coins "Cyber Monday".
  • November 11, 2009 - Alibaba launches Singles' Day.
  • August 28, 2019 - Google introduces seasonality adjustments for Smart Bidding.
  • November 27, 2019 - Omnibus Directive (EU) 2019/2161 adopted.
  • May 28, 2022 - EU rules requiring the 30-day lowest prior price for announced reductions apply.
  • October 2022 - Amazon adds a second annual Prime event in October; Alibaba stops publishing Singles' Day sales totals in November.
  • September 26, 2024 - CJEU rules in Aldi Süd (C-330/23).
  • April 6, 2025 - UK DMCC Act consumer enforcement regime takes effect.
  • November 18, 2025 - CMA opens investigations into eight firms over pricing practices.
  • December 26-31, 2025 - US online returns rise 4.7% year on year, per Adobe; UK Boxing Day footfall up 4.4%, per MRI Software.
  • January 7-8, 2026 - Adobe reports a record $257.8bn US online season; Salesforce reports $1.29tn global.
  • March 26, 2026 - EU consumer authorities publish Black Friday discount sweep results.
  • April 23, 2026 - Amazon requires external evidence for seller list prices.
  • October 6-7, 2026 - Prime Big Deal Days in 22 countries.
  • October 15, 2026 - NRF forecasts $1.013tn in US holiday sales.
  • October 20, 2026 - SHEIN opens its Year-End Sale; Amazon's Black Friday deal submissions close.
  • January 14, 2027 - Amazon holiday peak fulfilment fees end.

Summary

Who: Retailers and marketplaces run year-end sales, from department stores and Amazon to fast-fashion sellers such as SHEIN; advertisers, ad platforms such as Google, Meta and Amazon, and regulators including the European Commission, the CMA, the FTC and the ACCC shape how they are promoted.

What: A year-end sale is a discount event in the final weeks of the calendar year, combining gift promotions and post-Christmas clearance, that coincides with the year's highest media prices and the sharpest post-holiday drop in them.

When: It runs from early December through Boxing Day into early January, though the label now stretches back to October; the 2026 US season is forecast at $1.013 trillion by the NRF.

Where: Online and in stores worldwide, with regional forms including Boxing Day and January sales in the UK, fukubukuro and New Year sales in Japan, and a post-Cyber Week tail in the US.

Why: Seasonal stock loses value after Christmas, returns flow back in, and annual targets close, while advertisers weigh peak auction prices against the cheaper Q5 window and regulators police the reference prices that make the discounts look real.