U.S. and global holiday ecommerce sales are projected to experience significant year-over-year growth in 2026, a trend shaped by the increasing influence of artificial intelligence in driving purchasing decisions, the widespread adoption of flexible payment options, a surge in cross-border transactions, and Amazon’s dynamic marketplace share. This forecast, based on a decade of ecommerce trend analysis, anticipates a robust performance for the upcoming holiday shopping season, building on the momentum of previous years and adapting to evolving consumer behaviors.
Ecommerce Poised for 8% Expansion
U.S. online holiday sales, encompassing the crucial period from November 1st through December 31st, are forecasted to increase by approximately 8% compared to the same timeframe in the preceding year. This projection aligns with recent performance indicators and broader economic trends. Adobe’s latest report indicated that consumers spent $257.8 billion online with U.S. merchants during the 2025 holiday season, a substantial 6.8% increase. Further bolstering this outlook, ecommerce purchases from U.S. sellers during the four-day Prime Day event in June 2026 saw an impressive 9.3% rise, demonstrating continued consumer engagement with online retail.
While the National Retail Federation (NRF) has not yet released its specific 2026 holiday forecast, their outlook for full-year retail sales, encompassing both online and brick-and-mortar channels, projects a 4.4% increase. This figure represents an acceleration from the average annual growth of 3.6% observed over the past decade, excluding the anomalous pandemic period. The NRF’s projection suggests a positive underlying economic climate conducive to retail expansion. The anticipated 8% growth for holiday ecommerce therefore not only surpasses last year’s performance but also outpaces the NRF’s broader retail prediction, underscoring the continued digital shift in consumer spending. This upward trajectory suggests that the holiday season remains a critical driver of online commerce, with consumers increasingly relying on digital platforms to fulfill their gift-giving needs and personal shopping desires.
AI-Driven Referrals Show Superior Conversion Rates
A key factor contributing to the anticipated ecommerce surge is the growing efficacy of generative artificial intelligence (AI) in influencing purchasing decisions. Shoppers referred from AI-powered tools are expected to convert at a rate at least 25% higher than those arriving from non-AI channels during the 2026 peak shopping season. This trend is not new; Adobe’s findings from the previous Christmas highlighted that AI-referred shoppers demonstrated a 31% better conversion rate than traffic from other sources. During Thanksgiving Day, this advantage widened to 54%, and on Black Friday, AI referrals converted 38% better.
The momentum has continued into 2026. The June Prime Day event saw AI-referred shoppers converting 40% better than their non-AI counterparts, even as traffic originating from AI tools experienced year-over-year growth. While the current volume of AI-driven site visits represents a small fraction of the total ecommerce market, its impact on conversion rates is undeniable. As more consumers integrate AI assistants like Gemini and ChatGPT into their research and shopping routines, the conversion rates from these channels are expected to normalize closer to those of traditional search engines and other established online pathways. Consequently, even as AI reaches a broader consumer base this holiday season, its ability to drive higher conversion rates is anticipated to significantly contribute to overall online sales performance. This suggests a strategic imperative for retailers to optimize their presence and engagement strategies for AI-powered discovery and recommendation engines.
Buy-Now, Pay-Later Services to Exceed $22 Billion
The convenience and flexibility offered by Buy-Now, Pay-Later (BNPL) services are projected to fuel over $22 billion in U.S. online purchases between November 1st and December 31st, 2026. BNPL solutions have become particularly attractive during the holiday season, a period characterized by increased gift spending and a desire to manage budgets effectively. These services allow consumers to spread the cost of purchases over time, often with interest-free installments, alleviating the pressure of immediate, lump-sum payments. This appeals to shoppers looking to make generous purchases without overwhelming their monthly finances or incurring high credit card interest rates.
The sustained appeal of deferred payments is expected to push 2026 holiday BNPL spending in the U.S. past the $22 billion mark for the first time, solidifying postponed payments as an increasingly common and integral part of the consumer purchasing journey. This trend reflects a broader shift in consumer financial behavior, with an increasing preference for payment flexibility across a wide range of retail categories. The growth of BNPL also presents both opportunities and challenges for retailers, influencing inventory management, return policies, and customer lifetime value calculations. As BNPL becomes more mainstream, its integration into checkout processes and marketing strategies will become increasingly crucial for businesses aiming to capture a larger share of the holiday shopping market.
Global Ecommerce Continues Its Upward Trajectory
Cross-border purchases are anticipated to represent approximately 20% of worldwide Black Friday and Cyber Monday ecommerce spending in 2026, highlighting the growing interconnectedness of the global retail landscape. International shopping has transitioned from a niche activity to a commonplace practice for a significant portion of online consumers. DHL’s "2026 E-Commerce Trends Report" indicated that 70% of global online shoppers now purchase from sellers in other countries, a notable increase from 60% a year prior. Furthermore, 45% of these shoppers engage in cross-border purchases more than once a month, underscoring the habitual nature of international online buying.
Chinese merchants currently dominate this segment, with 59% of international shoppers buying from sellers based in China, nearly double the 32% who purchase from U.S. sellers. The primary driver for this trend is lower pricing, a consistent factor in cross-border shopping decisions. The widespread availability of Chinese discount marketplaces further fuels this activity; platforms like Temu are utilized by 41% of shoppers, Shein by 32%, and Alibaba or AliExpress by 22%. These established buying habits are expected to persist through the holiday shopping season, contributing significantly to the overall volume of international transactions. The projection that one in every five dollars spent online worldwide during the Black Friday-Cyber Monday period will be attributed to international purchases emphasizes the critical role of global logistics, currency exchange management, and localized marketing efforts for retailers operating on an international scale.
Amazon’s Marketplace Dynamics Shift
The share of Amazon’s worldwide units sold by third-party sellers is projected to hold at 60% or less during the fourth quarter of 2026. This indicates a subtle but consistent shift in Amazon’s sales composition, with the e-commerce giant’s own retail operations gaining a marginal advantage. In recent years, third-party sellers have seen their share fluctuate. In Q4 2024, they accounted for 62% of worldwide units sold, a figure that slightly decreased to 61% in Q4 2025. The trend continued into 2026, with the share dipping to 60% in the first quarter before recovering to 61% in the second quarter.
The expectation is that Amazon’s direct retail business will continue to expand its market presence sufficiently during the crucial fourth quarter to keep third-party sellers at or below the 60% threshold of paid units sold. This dynamic within Amazon’s vast marketplace has significant implications for sellers who rely heavily on the platform. It suggests a strategic focus by Amazon to prioritize its own product offerings or to adjust its commission structures and seller policies in ways that may favor its direct sales. For third-party sellers, this trend underscores the importance of diversifying their sales channels and adapting their strategies to maintain competitiveness within the increasingly nuanced Amazon ecosystem. The ability of third-party sellers to adapt to these shifts will be a key determinant of their success during the 2026 holiday shopping season.
Review of 2025 Predictions
Reflecting on the previous year’s predictions provides valuable context for the current outlook. The five forecasts for the 2025 holiday shopping season included rapid fulfillment, increased Canadian cross-border purchases, growth for small businesses, widespread AI adoption in shopping, and the impact of consumer confidence.
-
Rapid Fulfillment: The prediction that at least 35% of November and December ecommerce orders would be received or picked up within 24 hours could not be definitively verified due to the absence of a 2025 edition of Comscore’s "State of Digital Commerce Report," which was expected to provide the necessary fulfillment-speed data.
-
Canadian Cross-Border Purchases: The forecast that at least 55% of Canadian shoppers would make a holiday purchase from a U.S. ecommerce store could not be clearly substantiated with available transaction data. While Canada and the U.S. remain significant trading partners, geopolitical factors such as tariff disputes have influenced consumer sentiment towards American companies.
-
Small Business Growth: The prediction of a 10% growth in holiday revenue for smaller U.S. online merchants, reaching approximately $15.5 billion, also lacked definitive post-holiday dataset support that specifically isolated this segment.
-
AI Shopping at 50%: This prediction proved accurate, with at least half of North American shoppers reportedly using AI for holiday shopping, and AI product discovery emerging as a leading ecommerce traffic source. Survey results from Synchrony indicated 56% U.S. usage, while Epsilon reported 29%.
-
Consumer Confidence: The expectation of strong consumer confidence was also validated. Epsilon’s findings showed average holiday spending reaching $1,190, a 52% increase above preseason expectations. Concurrently, Adobe reported record U.S. online sales of $257.8 billion, marking a 6.8% year-over-year increase.
These past predictions, with their successes and limitations, inform the current analysis, emphasizing the dynamic and sometimes elusive nature of ecommerce data. The insights gained from these reviews are crucial for refining future forecasting methodologies and understanding the complex interplay of factors shaping the digital retail environment. The consistent growth observed since 2013 in ecommerce, particularly during the holiday season, points to an enduring shift in consumer behavior towards online channels, a trend that shows no signs of abating.
