The Maze: Global B2C ecommerce is moving from adrenaline to arithmetic. Revenue climbed from $3.34tn in 2020 to $4.89tn in 2025 and is projected to reach $5.31tn in 2026. ECDB expects $7.14tn by 2030. That is $2.25tn of additional annual market revenue in five years, built through steady high-single-digit compounding rather than another lockdown-style shock. Calmer growth does not mean easier growth. When the channel expands predictably, execution—not merely being online—decides who captures the increment.
The Numbers:
Global ecommerce revenue grew from $3.34tn in 2020 to $4.89tn in 2025, a 46% nominal increase.
ECDB forecasts $5.31tn in 2026, $5.75tn in 2027, $6.20tn in 2028, $6.66tn in 2029 and $7.14tn in 2030.
The 2025-to-2030 increase is $2.25tn—roughly the size of the entire global ecommerce market in 2018.
ECDB expects annual growth of roughly 7% to 9% through 2030 and online commerce to reach 28% of retail.
The Signal: The market is no longer waiting for a single transformative event. It is stacking several smaller engines: more buyers in emerging markets, better payment and delivery access, higher purchase frequency, deeper online penetration of everyday goods, and AI-assisted discovery and personalisation. ECDB counted 2.67bn online buyers in 2025, up 9% from 2023, while order frequency rose 3.4% to 13.9 orders per buyer per year. Access still brings the biggest pool of new demand; frequency and retained order value determine who monetises it.
The forecast also changes the management problem. In a shock market, presence can look like strategy. In a compounding market, the baseline lifts everyone, so advantage comes from taking share. Merchants need reliable availability, local payment methods, predictable fulfilment, stronger retention and a product catalogue that both people and machines can understand. AI matters here less as a magic demand switch than as another distribution and conversion layer sitting on top of these fundamentals.
The Move: Separate market growth from company growth. Build plans around the difference between the 7%–9% category tailwind and the share you intend to win. Then assign an owner and a measurable lever to each part of the bridge: acquisition, conversion, frequency, average order value, returns and retention. A forecast this large can hide weak execution for a while. It cannot protect margins forever.
The geography matters too. A global total is not a route-to-market plan. Emerging markets can add buyers quickly, but local payments, mobile-first journeys and logistics density decide conversion. Mature markets may contribute less buyer growth yet offer more room to increase frequency, cross-category shopping and lifetime value. The same $2.25tn wave will break differently by country and category.
The Caveat: ECDB's figures are modelled, nominal estimates for B2C ecommerce of physical goods. They exclude B2B marketplaces, services, returns and C2C transactions. Values from 2026 onward are forecasts, and currency movements or inflation can lift the dollar total without matching real unit growth. The forecast is a direction and scale signal—not a revenue guarantee for any individual retailer.
The Bottom Line: Ecommerce is adding another market-sized market, only more quietly this time. The next winners will not be the companies that notice the $7tn headline. They will be the ones that turn a predictable tailwind into share, frequency and retained margin.
