The 2025 holiday shopping season shattered records, driving $257.8 billion in online spending according to Adobe's holiday report. But the headline number tells only half the story. Behind it, a fundamental shift in how consumers discover and buy products is accelerating — and the brands that understand these ecommerce holiday trends for 2026 will capture a disproportionate share of the next season's revenue.
Key Takeaways
- The 2025 holiday season drove $257.8 billion in online spending, with AI referral traffic to retail sites surging 693.4% year over year.
- Consumers arriving from AI sources converted at rates 31% higher than traditional channels, and AI agents influenced 20% of all retail sales ($262 billion).
- Mobile commerce accounted for 56.4% of holiday transactions, and Buy Now Pay Later hit $20 billion in holiday spending.
- Creators have replaced paid advertising as the primary entry point for holiday product discovery, with the shopping season expanding to an 8-10 week window.
- Brands preparing for 2026 must optimise for AI discovery, audit mobile checkout, invest in social proof, and extend their promotional calendars.
AI-Powered Discovery Is Rewriting Holiday Shopping
The most significant ecommerce holiday trend for 2026 is the explosion of AI-driven product discovery. Traffic from AI sources — large language models like ChatGPT, Perplexity, and Google's AI Overviews — to retail sites surged 693.4% during the 2025 holiday season compared to the year before. That is not a rounding error. It is a structural change in how shoppers find products.
What makes this even more significant is conversion quality. Consumers arriving at retail sites from AI sources converted at rates 31% higher than those coming from traditional channels — a gap that doubled compared to the 2024 season. AI-referred shoppers are not browsing. They arrive with intent, context, and a specific recommendation already in mind.
Agentic commerce — where AI agents autonomously handle product research, comparison, and even purchasing — emerged as a breakout category. According to Salesforce, AI agents influenced 20% of all retail sales during the holiday period, representing $262 billion in revenue. Retailers saw AI-assisted customer service usage spike 126% in November and December compared to the two prior months.
For brands, this means holiday preparation in 2026 is no longer just about ad spend, promotions, and inventory. It is about whether AI agents can find your products, understand your value proposition, and recommend you over competitors. If your product pages are built for Google but not for AI, you are leaving holiday revenue on the table.
Mobile-First Checkout and Buy Now, Pay Later
Mobile commerce continued its takeover of holiday shopping. A majority of online transactions — 56.4% — took place on smartphones during the 2025 season, up from 54.5% the year before. The shift is no longer a trend; it is the default. Shoppers browse, compare, and buy on their phones, and any friction in the mobile experience translates directly into lost sales.
Buy Now, Pay Later services hit $20 billion in holiday spending, growing 9.8% over the previous year. BNPL is no longer a niche payment option — it is a core checkout expectation, especially for purchases in the $100–$500 range where shoppers want budget flexibility without credit card interest. Brands that do not offer BNPL at checkout during the holiday season are creating unnecessary friction at the moment of highest purchase intent.
The average order value also climbed 6% year-over-year, driven by smarter bundling, strategic upsells, and AI-powered product recommendations that surface relevant complementary items. Holiday shoppers are spending more per transaction when the experience makes it easy to find what they need.
Creator-Led Commerce and Social Proof Replace Ads
Creators have officially replaced paid advertising as the primary entry point for holiday product discovery. Shoppers are starting their journeys on TikTok, YouTube, and Instagram — watching people they trust try products in real time — before ever visiting a brand's website.
User-generated content has become the most powerful form of social proof. Customer photos, unboxing videos, and honest reviews build trust faster than any branded content campaign. During the holiday season, this effect is amplified — shoppers under time pressure rely on authentic recommendations rather than polished marketing to make fast purchasing decisions.
The holiday shopping timeline itself has expanded. What used to be a concentrated Black Friday to Christmas rush is now an eight-to-ten-week season. Shoppers spread purchases across early-access drops, mid-season flash sales, and post-holiday deals. According to Digital Commerce 360, this extended timeline means brands need consistent visibility throughout Q4 — not just a single promotional burst.
What These Trends Mean for Your 2026 Holiday Strategy
The common thread across every major ecommerce holiday trend is discoverability. Mobile-first shoppers need to find you instantly. AI agents need structured data to recommend you. Creators need a compelling product story to share. Every trend converges on the same question: can potential customers find and trust your brand at the moment they are ready to buy?
For brands preparing for the 2026 holiday season, the priorities are clear:
- Optimise for AI discovery. With AI traffic to retail sites growing nearly 700% year over year, making your products visible to AI search engines is no longer optional. Structured data, clear product descriptions, and authoritative content are the foundation. A free AI readiness scan can show you where your site stands today.
- Audit your mobile checkout. If your mobile conversion rate lags desktop by more than 15%, there is money leaking from your holiday funnel.
- Invest in social proof infrastructure. Customer reviews, UGC, and creator partnerships need to be in place well before the season starts — not scrambled together in October.
- Extend your promotional calendar. Plan for a 10-week season, not a 2-week blitz.
Frequently Asked Questions
How much did AI referral traffic grow during the 2025 holiday season?
AI referral traffic to retail sites surged 693.4% during the 2025 holiday season compared to the previous year. Consumers arriving from AI sources like ChatGPT, Perplexity, and Google AI Overviews converted at rates 31% higher than traditional channels. This makes AI-driven discovery the fastest-growing ecommerce traffic source in 2025-2026.
What percentage of holiday shopping happens on mobile?
Mobile commerce accounted for 56.4% of all online holiday transactions in 2025, up from 54.5% the prior year. Mobile is now the default shopping device, and any friction in the mobile checkout experience directly translates into lost holiday revenue.
How should ecommerce brands prepare for the 2026 holiday season?
Start by optimising for AI discovery — structured data, clear product descriptions, and authoritative content are the foundation. Audit your mobile checkout to ensure the conversion gap with desktop is under 15%. Invest in social proof infrastructure including customer reviews, UGC, and creator partnerships well before the season starts. Plan for a 10-week promotional calendar rather than a 2-week blitz.
The brands that win the 2026 holiday season will be the ones that are discoverable everywhere shoppers — and their AI agents — are looking. That starts with understanding how AI agents are reshaping the buyer journey and making sure your products are part of the conversation.
Want to know if AI agents can find and recommend your products? Run a free AI readiness scan to see your baseline score before the holiday season.
