E-commerce sales to hit $1.8 trillion by 2030
By comparison, e-commerce sales generated $4.5 billion in the final three months of 1999. Since then, the industry has seen tremendous growth. It took 18 years for sales to pass $100 billion in a single three-month period, but then just seven years to pass $300 billion, according to the Census Bureau.
Amazon has the biggest share of online retail, capturing 35.7 percent of sales in 2025, according to e-commerce intelligence firm Marketplace Pulse.