Online sales calendar 2026: Prime Big Deal Days to Boxing Day

The last three months of the year are when deals groups grow fastest and sell the most, but only if you're ready before each sale starts. This calendar lists the big online shopping events from October to December 2026 for the US, the UK, India and Southeast Asia, with confirmed dates, and shows what to prepare for each one.

The short answer: the key dates left in 2026 are Prime Big Deal Days (October 6–7), the Amazon Great Indian Festival (from October 8), Flipkart's Big Billion Days (October 9, early access October 8), the double-date sales 10.10, 11.11 and 12.12, Black Friday (November 27), Cyber Monday (November 30) and Boxing Day in the UK (December 26, with the bank holiday on Monday December 28). Most 2027 event dates have not been announced yet.

Store events vs fixed dates: what's the difference

There are two kinds of sale dates. Store events, like Prime Big Deal Days or Big Billion Days, are set by each retailer and announced a few weeks or months before. Their dates change every year, so only trust the store's own announcement. Fixed or calculated dates, like Black Friday (the day after US Thanksgiving) or the double dates 10.10 and 11.11, can be known years ahead, although what each store actually offers on them is still up to the store.

Sales calendar: October to December 2026

All dates below are confirmed on official pages or calculated from fixed rules, as noted. Days of the week are for 2026.

1. Oct 6–7
   Amazon Prime Big Deal Days

   Tuesday and Wednesday. Amazon says it runs in 22 countries, including the US, the UK and Singapore. Source: About Amazon.

2. Oct 8
   Amazon Great Indian Festival starts (India)

   Amazon.in's big festive sale. The end date wasn't announced on the page we checked. Source: About Amazon India.

3. Oct 8–9
   Flipkart Big Billion Days (India)

   Early access starts October 8; general public access starts October 9. End date not confirmed. Source: Flipkart.

4. 10.10
   10.10 sale (Saturday)

   Double-date sale on Southeast Asian marketplaces like Shopee and Lazada. Check each store's campaign page for times and vouchers.

5. 11.11
   11.11 / Singles' Day (Wednesday)

   A major shopping date across Asia. Prepare your shortlist days before.

6. Nov 27
   Black Friday (Friday)

   The day after US Thanksgiving. Huge in the US and the UK, and widely used by global stores.

7. Nov 30
   Cyber Monday (Monday)

   The Monday after Black Friday, focused on online deals.

8. 12.12
   12.12 sale (Saturday)

   The last double-date sale of the year in Southeast Asia, good for Christmas gifts. Remind members about delivery times.

9. Dec 26
   Boxing Day (UK)

   Falls on a Saturday in 2026, so the bank holiday in England and Wales moves to Monday December 28. Source: GOV.UK.

In India, October and November are festive-season shopping months, and the big marketplace sales are timed around them. Festival dates move every year, so check an official calendar before you mention a specific festival day in your group, and focus your posts on the sale dates the stores have confirmed.

Looking ahead: 2027

Store events for 2027 (Prime Day, Prime Big Deal Days, Great Indian Festival, Big Billion Days) have not been announced yet. Don't promise dates to your members until each store confirms them. What you can already put in your planner are the fixed and calculated dates:

What to prepare before each event

1. 1
   One week before: build your shortlist

   List 15 to 30 products in your niche that are likely to be discounted. Save their current prices so you can tell a real deal from a fake one. For Amazon, Keepa shows price history.

2. 2
   Three days before: warm up the group

   Tell members the date, what categories you'll cover and the times you'll post. Ask them what they're hoping to buy.

3. 3
   The day before: prepare messages

   Write your deal templates with placeholders, check that your affiliate links work and that the disclosure is in every message.

4. 4
   On the day: post at fixed times

   Spread deals through the day. Flag lightning deals clearly and remove or update ones that expire.

5. 5
   The day after: follow up

   Thank members, share the best deals still live and ask what they bought. Note which products worked.

Adapt the calendar to your niche and country

Black Friday: how to sell honestly

Black Friday brings the most clicks of the year, and also the most fake discounts. Members who catch you posting a "deal" that was cheaper last month will stop trusting your group. Three habits protect you:

• Compare with the price history, not with the "was" price the store shows.
• Write "price at time of posting", because Black Friday prices change by the hour.
• Keep your affiliate disclosure in every deal, even when you post fast. See our affiliate disclosure guide.

Message templates for sale days

📅 *{EVENT} is on {DATE}!*
I'll be posting the best {NICHE} deals from {TIME} to {TIME}.
👉 Tell me what you're hoping to buy and I'll look out for it!
Turn on notifications for this group so you don't miss flash deals ⚡

⚡ *{EVENT} deal: {PRODUCT}*
Was ~{OLD PRICE}~ → *{PRICE}* (price at time of posting)
✅ {ONE-LINE BENEFIT}
👉 {LINK}
#ad · I earn a commission if you buy through this link.

⏰ *Last hours of {EVENT}!*
Still live right now:
1️⃣ {PRODUCT 1}: *{PRICE}* 👉 {LINK}
2️⃣ {PRODUCT 2}: *{PRICE}* 👉 {LINK}
Prices can change any minute. #ad

🙏 Thanks for shopping with us this {EVENT}!
What did you get? Reply with a photo 😊
Next big date: *{NEXT EVENT}* on {DATE}. I'll let you know!

Running several groups by niche or country makes these days hectic. If you manage many groups, AutoProd can send your products to the groups of each category in cycles, at a pace you control. For the right posting times, see the best times to post deals on WhatsApp.

Checklist: 4 weeks before Black Friday

Common mistakes on sale dates