Japan's affiliate marketing industry has seen substantial growth, with over 1.2 million active marketers in 2026. The total revenue reaching ¥2.5 trillion signifies the sector's increasing importance in the country's digital economy. Rakuten Affiliate continues to dominate with a 35% share, reflecting its strong brand presence and extensive network, while other major players like A8.net and ValueCommerce also hold significant portions of the market.
Mobile devices are the primary channel for affiliate traffic, accounting for 68% of all digital interactions. The average commission rate has increased to 7.5%, incentivizing affiliates further. As Japan continues to digitize, small and medium-sized enterprises are leveraging affiliate marketing to reach wider audiences, boosting overall growth and innovation in this competitive landscape.